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YV12T25-0G

型号：

YV12T25-0G

描述：

YV12T25 DC- DC转换器[ YV12T25 DC-DC Converter ]

品牌：

POWER-ONE[ POWER-ONE ]

页数：

12 页

PDF大小：

393 K

下载PDF手册
YV12T25 DC-DC Converter  
10 - 14 VDC Input; 0.8 - 5.5 VDC Programmable @ 25 A  
Data Sheet  
The  
Products: Y-Series  
Features  
RoHS lead-free solder and lead-solder-exempted  
products are available  
Delivers up to 25 A  
Input range 10 - 14 V  
Small size and low profile: 1.25” x 2.00” x 0.335”  
(31.7 x 50.8 x 8.50 mm)  
Applications  
Start-up into pre-biased output  
No minimum load required  
Operating ambient temperature: -40 °C to 85 °C  
Remote output sense  
Remote ON/OFF  
Fixed frequency operation (500 kHz)  
Auto-reset output overcurrent protection  
High reliability, MTBF = 23 Million Hours  
All materials meet UL94, V-0 flammability rating  
UL60950 recognition in U.S. & Canada, and  
certification per IEC/EN60950  
Intermediate Bus Architectures  
Telecommunications  
Data communications  
Distributed Power Architectures  
Servers, workstations  
Benefits  
High efficiency– no heat sink required  
Cost effective  
Reduces Total Solution Board Area  
Description  
Power-One’s point-of-load converters are recommended for use with regulated bus converters in an Intermediate  
Bus Architecture (IBA). The YV-Series of non-isolated dc-dc converters deliver up to 25 Amps of output current  
in a through-hole (SIP) package. Operating from a 10 - 14 VDC input, the YV12T25 converter is an ideal choice  
for Intermediate Bus Architectures where Point-of-Load (POL) power delivery is a requirement. The converter  
provides an extremely tight regulated programmable output voltage of 0.80 V to 5.5 V.  
The YV-Series of converters provide exceptional thermal performance, even in high temperature environments  
with minimal airflow. This performance is accomplished through the use of advanced circuitry, packaging and  
processing techniques to achieve a design possessing ultra-high efficiency, excellent thermal management, and  
a very low body profile.  
The low body profile minimizes impedance to system airflow, thus enhancing cooling for both upstream and  
downstream devices. The use of automation for assembly, coupled with advanced power electronics and thermal  
design, results in a product with extremely high reliability.  
ZD-01983 Rev. 2.1, 25-Jun-10  
www.power-one.com  
Page 1 of 12  
YV12T25 DC-DC Converter  
10 - 14 VDC Input; 0.8 - 5.5 VDC Programmable @ 25 A  
Data Sheet  
Electrical Specifications  
Conditions: TA = 25 ºC, Airflow = 300 LFM (1.5 m/s), Vin = 12.0 VDC, Vout = 0.8 – 5.5 V, unless otherwise specified.  
Parameters  
Notes  
Min  
Typ  
Max  
Units  
Absolute Maximum Ratings  
Input Voltage  
Continuous  
-0.3  
- 40  
-55  
14  
85  
VDC  
°C  
Operating Ambient Temperature  
Storage Temperature  
125  
°C  
Feature Characteristics  
Switching Frequency  
Output Voltage Trim Range1  
500  
0.5  
kHz  
VDC  
By external resistor, See Trim Table 1  
0.7887  
5.5  
0.5  
Remote Sense Compensation1  
VDC  
ms  
Turn-On Delay Time2  
With Vin = (Converter Enabled, then Vin  
applied)  
Full resistive load  
From Vin = Vin(min) to Vo = 0.1*  
Vo(nom)  
With Enable (Vin = Vin(nom) applied, then  
enabled)  
From enable to Vo = 0.1*Vo(nom)  
1.0  
2.0  
ms  
ms  
Rise time2 (Full resistive load; No external  
output capacitors)  
From 10%Vo(set) to 90%Vo(set)  
Vin=Vin(on) to Vin(max);  
Open collector or equivalent;  
(Signal referenced to GND)  
SEQ/ENA Control Signal3  
Logic High (Module OFF)  
SEQ/ENA Current  
0.5  
3.5  
2.33  
14  
mA  
SEQ/ENA Voltage  
VDC  
Logic Low (Module ON)  
SEQ/ENA Current  
200  
0.8  
μA  
SEQ/ENA Voltage  
VDC  
Additional Notes:  
1
The output voltage should not exceed 5.5 V (taking into account both the programming and remote sense compensation).  
Note that startup time is the sum of turn-on delay time and rise time.  
The converter is ON if the SEQ/ENA pin is left open.  
2
3
ZD-01983 Rev. 2.1, 25-Jun-10  
www.power-one.com  
Page 2 of 12  
YV12T25 DC-DC Converter  
10 - 14 VDC Input; 0.8 - 5.5 VDC Programmable @ 25 A  
Data Sheet  
Electrical Specifications (continued)  
Conditions: TA = 25 ºC, Airflow = 300 LFM (1.5 m/s), Vin = 12.0 VDC, Vout = 0.8 – 5.5 V, unless otherwise specified.  
Parameter  
Input Characteristics  
Notes  
Min  
Typ  
Max  
Units  
Operating Input Voltage Range  
Input Undervoltage Lockout  
Turn-on Threshold  
10  
12  
14  
VDC  
9.9  
VDC  
VDC  
Turn-off Threshold  
8.1  
Maximum Input Current  
25 ADC Output @ 10VDC Input  
VOUT = 5.0 VDC  
13.2  
8.9  
6.9  
5.6  
5.1  
4.3  
3.5  
2.5  
ADC  
ADC  
ADC  
ADC  
ADC  
ADC  
ADC  
ADC  
mA  
VOUT = 3.3 VDC  
VOUT = 2.5 VDC  
VOUT = 2.0 VDC  
VOUT = 1.8 VDC  
VOUT = 1.5 VDC  
VOUT = 1.2 VDC  
VOUT = 0.8 VDC  
Input Standby Current (Converter disabled)  
Input No Load Current (Converter enabled)  
25  
113  
94  
84  
78  
78  
77  
77  
77  
30  
60  
mA  
VOUT = 5.0 VDC  
VOUT = 3.3 VDC  
VOUT = 2.5 VDC  
VOUT = 2.0 VDC  
VOUT = 1.8 VDC  
VOUT = 1.5 VDC  
VOUT = 1.2 VDC  
VOUT = 0.8 VDC  
See Fig. E for setup. (BW = 20 MHz)  
120 Hz  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
Input Reflected-Ripple Current - is  
Input Voltage Ripple Rejection  
mAP-P  
dB  
ZD-01983 Rev. 2.1, 25-Jun-10  
www.power-one.com  
Page 3 of 12  
YV12T25 DC-DC Converter  
10 - 14 VDC Input; 0.8 - 5.5 VDC Programmable @ 25 A  
Data Sheet  
Electrical Specifications (continued)  
Conditions: TA = 25 ºC, Airflow = 300 LFM (1.5 m/s), Vin = 12.0 VDC, Vout = 0.8 – 5.5 V, unless otherwise specified.  
Parameter  
Notes  
Min  
Typ  
Max  
Units  
Output Characteristics  
Output Voltage Set Point (No Load)  
- 1.2  
Vout  
+1.2  
%Vout  
Output Regulation  
Over Line  
Full resistive load  
From no load to full load  
0.01  
0.1  
0.1  
0.2  
%Vout  
%Vout  
Over Load  
Output Voltage Range  
(Over all operating input voltage, resistive load  
and temperature conditions until end of life )  
-3.0  
5.7  
+3.0  
%Vout  
Output Ripple and Noise – 20 MHz bandwidth Over line, load and temperature  
Peak-to-Peak VOUT = 5.0 VDC  
Output Overvoltage Protection (Non-Latching) All output voltages  
40  
6.0  
125  
mVP-P  
V
6.3  
Overtemperature protection  
External Load Capacitance  
All output voltages  
°C  
Plus full load (resistive)  
Min ESR > 1mΩ  
Min ESR > 10mΩ  
1,000  
10,000  
6,800  
25  
μF  
μF  
Min ESR > 10mΩ  
VOUT = 5.0 VDC  
μF  
Output Current Range  
0
A
Output Current Limit Inception (IOUT  
)
125  
3
150  
%Iout  
Arms  
Output Short-Circuit Current , RMS Value  
Short = 10 mꢀ, continuous  
Dynamic Response  
Load current change from 12.5 A – 25 A,  
di/dt = 5 A/μs  
No external output capacitance  
No external output capacitance  
150  
150  
mV  
µs  
Settling Time (VOUT < 10% peak deviation)  
Unloading current change from 25 A – 12.5 A,  
di/dt = -5 A/μs  
25  
25  
mV  
µs  
Settling Time (VOUT < 10% peak deviation)  
Efficiency  
Full load (25A)  
VOUT = 5.5 VDC  
VOUT = 3.3 VDC  
VOUT = 2.5 VDC  
VOUT = 2.0 VDC  
VOUT = 1.8 VDC  
VOUT = 1.5 VDC  
VOUT = 1.2 VDC  
VOUT = 0.8 VDC  
94.3  
92.2  
90.7  
88.9  
88.0  
86.3  
83.7  
77.7  
%
%
%
%
%
%
%
%
General Specifications  
Parameter  
Notes  
Min  
Typ  
Max  
Units  
Million  
Hours  
Calculated MTBF  
Weight  
50% Stress, Ta = 40 °C  
23  
19  
(0.67)  
-
-
g(oz.)  
ZD-01983 Rev. 2.1, 25-Jun-10  
www.power-one.com  
Page 4 of 12  
YV12T25 DC-DC Converter  
10 - 14 VDC Input; 0.8 - 5.5 VDC Programmable @ 25 A  
Data Sheet  
Remote Sense (Pins 1 and 2)  
Operations  
The remote sense feature of the converter  
compensates for voltage drops occurring between  
the output pins of the converter and the load. The  
SENSE(-) (Pin 2) and SENSE(+) (Pin 1) pins should  
be connected at the load or at the point where  
regulation is required (see Fig. B).  
Input and Output Impedance  
The YV-Series converter should be connected via a  
low impedance to the DC power source. In many  
applications, the inductance associated with the  
distribution from the power source to the input of the  
converter can affect the stability of the converter. It is  
recommended to use low - ESR tantalum, POS or  
ceramic decoupling capacitors (minimum 150 μF)  
placed as close as possible to the converter input  
pins in order to ensure stability of the converter and  
reduce input ripple voltage. Internally, the converter  
has 40 μF (low ESR ceramics) of input capacitance.  
The YV12T25-0 has been designed for stable  
operation with or without external output  
capacitance.  
It is important to keep low resistance and low  
inductance PCB traces for connecting load to the  
output pins of the converter in order to maintain good  
load regulation.  
Fig. B: Remote sense circuit configuration.  
Because the sense lead carries minimal current,  
large trace on the end-user board are not required.  
However, sense trace should be located close to a  
ground plane to minimize system noise and ensure  
the optimum performance.  
SEQ/ENA (Pin 13)  
The SEQ/ENA pin is used to turn the power  
converter on or off remotely via a system signal. If  
not using the remote ON/OFF, leave the pin open  
(module will be on). The SEQ/ENA signal is  
referenced to ground. The typical connections are  
shown in Fig. A.  
When utilizing the remote sense feature, care must  
be taken not to exceed the maximum allowable  
output power capability of the converter, which is  
equal to the product of the nominal output voltage  
and the allowable output current for the given  
conditions.  
When using remote sense, the output voltage at the  
converter can be increased up to 0.5 V above the  
nominal rating in order to maintain the required  
voltage across the load. Therefore, the designer  
must, if necessary, decrease the maximum current  
(originally obtained from the derating curves) by the  
same percentage to ensure output power remains at  
or below the maximum allowable output power.  
The converter is ON when the SEQ/ENA pin is at a  
logic low or left open, and OFF when the SEQ/ENA  
pin is at a logic high (3.5V min) or connected to Vin.  
The external resistor R1 should be chosen to  
maintain 3.5V minimum on the SEQ/ENA pin to  
insure that the unit is OFF when Q1 is turned OFF.  
Note that the external diode is required for proper  
operation.  
Fig. A: Circuit configuration for ON/OFF function.  
ZD-01983 Rev. 2.1, 25-Jun-10  
www.power-one.com  
Page 5 of 12  
YV12T25 DC-DC Converter  
10 - 14 VDC Input; 0.8 - 5.5 VDC Programmable @ 25 A  
Data Sheet  
Output Voltage Programming  
V0-REG [V]  
RTRIM [Ω]  
The output voltage can be programmed from  
0.8 V to 5.5 V by connecting an external resistor  
(RTRIM) between SENSE(+) pin (Pin 1) and Vout pin  
(see Fig. C).If the RTRIM is not used and SENSE(+) is  
shorted to Vout, the output voltage of the module will  
be 0.7887V. If the SENSE(+) is not connected to the  
Vout, the output of the module will reach overvoltage  
shutdown. A 1μF multilayer ceramic capacitor is  
required from RTRIM to SENSE(-) pin to minimize  
noise.  
11  
208  
404  
699  
0.8  
1.0  
1.2  
1.5  
1.8  
2.0  
2.5  
3.3  
5.0  
994  
1190  
1682  
2468  
4138  
A trim resistor, RTRIM, for a desired output voltage  
can be calculated using the following equation:  
Overvoltage  
Shutdown  
Open  
Table 1: Trim Resistor Values  
V
OREQ  
[ ]  
R
 775  
1  
TRIM  
0.7887  
Protection Features  
where,  
Input Undervoltage Lockout  
RTRIM Required value of trim resistor [ꢀ]  
VOREQ Desired (trimmed) output voltage [V]  
Input undervoltage lockout is standard with this  
converter. The converter will shut down when the  
input voltage drops below a pre-determined voltage;  
it will start automatically when Vin returns to a  
specified range. .  
Output Overcurrent Protection (OCP)  
The converter is protected against overcurrent and  
short circuit conditions. Upon sensing an overcurrent  
condition, the converter will enter hiccup mode. Once  
over-load or short circuit condition is removed, Vout  
will return to nominal value.  
Overtemperature Protection (OTP)  
The converter will shut down under an  
overtemperature condition to protect itself from  
overheating caused by operation outside the thermal  
derating curves, or operation in abnormal conditions  
such as system fan failure. After the converter has  
cooled to a safe operating temperature, it will  
automatically restart.  
Fig. C: Configuration for programming output voltage.  
Note that the tolerance of a trim resistor directly  
affects the output voltage tolerance. It is  
recommended to use standard 1% or 0.5% resistors;  
for tighter tolerance, two resistors in parallel are  
recommended rather than one standard value from  
Table 1.  
Safety Requirements  
The converter meets North American and  
International safety regulatory requirements per  
UL60950 and EN60950. The maximum DC voltage  
between any two pins is Vin under all operating  
conditions. Therefore, the unit has ELV (extra low  
voltage) output; it meets SELV requirements under  
the condition that all input voltages are ELV. The  
converter is not internally fused. To comply with  
safety agencies’ requirements, a recognized fuse  
with a maximum rating of 30 Amps must be used in  
series with the input line.  
ZD-01983 Rev. 2.1, 25-Jun-10  
www.power-one.com  
Page 6 of 12  
YV12T25 DC-DC Converter  
10 - 14 VDC Input; 0.8 - 5.5 VDC Programmable @ 25 A  
Data Sheet  
airflow during the testing is parallel to the long axis of  
the converter.  
Characterization  
General Information  
The converter has been characterized for many  
operational aspects, to include thermal derating  
(maximum load current as a function of ambient  
temperature and airflow) for vertical and horizontal  
mountings, efficiency, startup and shutdown  
parameters, output ripple and noise, transient  
response to load step-change, overload, and short  
circuit.  
The following pages contain specific plots or  
waveforms associated with the converter. Additional  
comments for specific data are provided below.  
Fig. D: Location of the thermocouples for thermal testing.  
For each set of conditions, the maximum load  
current is defined as the lowest of:  
Test Conditions  
(i) The output current at which any MOSFET  
All data presented were taken with the converter  
soldered to a test board, specifically a 0.060” thick  
printed wiring board (PWB) with four layers. The top  
and bottom layers were not metalized. The two inner  
layers, comprised of two-ounce copper, were used to  
provide traces for connectivity to the converter.  
temperature does not exceed  
a
maximum  
specified temperature (110 °C) as indicated by the  
thermographic image, or  
(ii) The maximum current rating of the converter  
During normal operation, derating curves with  
maximum FET temperature less than or equal to  
110°C should not be exceeded. Temperature on the  
MOSFET at the thermocouple location shown in Fig.  
D should not exceed 110 °C in order to operate  
inside the derating curves.  
The lack of metalization on the outer layers as well  
as the limited thermal connection ensured that heat  
transfer from the converter to the PWB was  
minimized. This provides a worst-case but consistent  
scenario for thermal derating purposes.  
All measurements requiring airflow were made in the  
vertical and horizontal wind tunnels using Infrared  
Efficiency  
Figures 1 to 6 shows the efficiency vs. load current  
plot for ambient temperature of 25 ºC and input  
voltages of 10.8 V, 12 V, and 13.2 V.  
(IR)  
thermography  
and  
thermocouples  
for  
thermometry.  
Ensuring components on the converter do not  
exceed their ratings is important to maintaining high  
reliability. If one anticipates operating the converter  
at or close to the maximum loads specified in the  
derating curves, it is prudent to check actual  
Ripple and Noise  
The output voltage ripple waveform is measured at  
full rated load current. Note that all output voltage  
waveforms are measured across a 1 μF ceramic  
capacitor. The output voltage ripple and input  
reflected ripple current waveforms are obtained  
using the test setup shown in Fig. E.  
operating  
temperatures  
in  
the  
application.  
Thermographic imaging is preferable; if this  
capability is not available, then thermocouples may  
be used. The use of AWG #40 gauge thermocouples  
is recommended to ensure measurement accuracy.  
Careful routing of the thermocouple leads will further  
minimize measurement error. Refer to Fig. D for the  
optimum measuring thermocouple location.  
is  
VIN  
VOUT  
1 uH  
Source  
Inductance  
Cin=150uF  
Cout = 1uF  
Ceramic VOUT  
Capacitor  
Tantalum  
Capacitor  
Module  
Vsource  
Thermal Derating  
Load current vs. ambient temperature and airflow  
rates are given in Figures 13 to 16 for maximum  
temperature of 110 °C. Ambient temperature was  
varied between 25 °C and 85 °C, with airflow rates  
from 30 to 400 LFM (0.15 m/s to 2.0 m/s), and  
vertical and horizontal converter mountings. The  
.
GND  
Fig. E: Test setup for measuring input reflected-ripple  
currents, is and output voltage ripple.  
ZD-01983 Rev. 2.1, 25-Jun-10  
www.power-one.com  
Page 7 of 12  
YV12T25 DC-DC Converter  
10 - 14 VDC Input; 0.8 - 5.5 VDC Programmable @ 25 A  
Data Sheet  
97  
96  
95  
94  
93  
92  
91  
90  
89  
88  
87  
96  
94  
92  
90  
88  
86  
Vin = 13.2 Vdc  
Vin = 13.2 Vdc  
Vin = 12.0 Vdc  
Vin = 10.8 Vdc  
Vin = 12.0 Vdc  
Vin = 10.8 Vdc  
84  
82  
0
5
10  
15  
20  
25  
0
5
10  
15  
20  
25  
Load Current (Adc)  
Load Current (Adc)  
Fig. 2: Efficiency vs. load current and input voltage for Vout =  
3.3 V.  
Fig. 1: Efficiency vs. load current and input voltage  
for Vout = 5.0 V.  
92  
90  
88  
86  
84  
82  
94  
92  
90  
88  
86  
84  
80  
Vin = 13.2 Vdc  
Vin = 13.2 Vdc  
78  
Vin = 12.0 Vdc  
Vin = 12.0 Vdc  
Vin = 10.8 Vdc  
Vin = 10.8 Vdc  
82  
80  
76  
74  
0
5
10  
15  
20  
25  
0
5
10  
15  
20  
25  
Load Current (Adc)  
Load Current (Adc)  
Fig. 3: Efficiency vs. load current and input voltage for  
Fig. 4: Efficiency vs. load current and input voltage for Vout =  
Vout = 2.5 V.  
1.8 V.  
95  
90  
85  
80  
75  
90  
85  
80  
75  
70  
70  
Vin = 13.2 Vdc  
Vin = 13.2 Vdc  
Vin = 12.0 Vdc  
Vin = 12.0 Vdc  
65  
Vin = 10.8 Vdc  
65  
60  
Vin = 10.8 Vdc  
60  
0
5
10  
15  
20  
25  
0
5
10  
15  
20  
25  
Load Current (Adc)  
Load Current (Adc)  
Fig. 5: Efficiency vs. load current and input voltage for Vout =  
1.5 V.  
Fig. 6: Efficiency vs. load current and input voltage for Vout =  
1.2 V.  
ZD-01983 Rev. 2.1, 25-Jun-10  
www.power-one.com  
Page 8 of 12  
YV12T25 DC-DC Converter  
10 - 14 VDC Input; 0.8 - 5.5 VDC Programmable @ 25 A  
Data Sheet  
30  
25  
20  
15  
10  
5
30  
25  
20  
15  
10  
400 LFM  
300 LFM  
200 LFM  
100 LFM  
30 LFM  
400 LFM  
300 LFM  
200 LFM  
5
100 LFM  
30 LFM  
0
0
20  
30  
40  
50  
60  
70  
80  
90  
20  
30  
40  
50  
60  
70  
80  
90  
Ambient Temperature (oC)  
Ambient Temperature (oC)  
Fig. 13: Available load current vs. ambient temperature and  
airflow rates for Vout = 5.0 V with Vin = 12 V, and maximum  
MOSFET temperature ≤ 110 °C. Horizontal Orientation  
(Airflow from Vin pin to GND pin.)  
Fig. 14: Available load current vs. ambient temperature and  
airflow rates for Vout = 3.3 V with Vin = 12 V, and maximum  
MOSFET temperature ≤ 110 °C. Horizontal Orientation  
(Airflow from Vin pin to GND pin.)  
30  
25  
20  
15  
30  
25  
20  
15  
10  
10  
400 LFM  
400 LFM  
300 LFM  
200 LFM  
300 LFM  
200 LFM  
5
5
100 LFM  
100 LFM  
30 LFM  
30 LFM  
0
0
20  
30  
40  
50  
60  
70  
80  
90  
20  
30  
40  
50  
60  
70  
80  
90  
Ambient Temperature (oC)  
Ambient Temperature (oC)  
Fig. 16: Available load current vs. ambient temperature  
and airflow rates for Vout = 1.2 V with Vin = 12 V, and maximum  
MOSFET temperature ≤ 110 °C. Horizontal Orientation (Airflow  
from Vin pin to GND pin.)  
Fig. 15: Available load current vs. ambient temperature and  
airflow rates for Vout = 1.8 V with Vin = 12 V, and maximum  
MOSFET temperature ≤ 110 °C. Horizontal Orientation  
(Airflow from Vin pin to GND pin.)  
ZD-01983 Rev. 2.1, 25-Jun-10  
www.power-one.com  
Page 9 of 12  
YV12T25 DC-DC Converter  
10 - 14 VDC Input; 0.8 - 5.5 VDC Programmable @ 25 A  
Data Sheet  
Fig. 18: Turn-on transient for Vout = 3.3 V and 5.0 V with the  
Fig. 17: Turn-on transient for Vout = 3.3 V with the application of  
application of SEQ/ENA signal at full rated load current (resistive) and  
1 μF external capacitance at Vin = 12 V. SEQ/ENA pins are tied  
together. Top Trace: SEQ/ENA Signal (5 V/div.); Middle Trace: Output  
Voltage of 5V POL (2V/div.); Bottom Trace: Output Voltage of 3.3V  
POL (2 V/div.); Time Scale: 2 ms/div.  
SEQ/ENA signal at full rated load current (resistive) and 1 μF external  
capacitance at Vin = 12 V. Top Trace: SEQ/ENA Signal (5 V/div.);  
Bottom Trace: Output Voltage (1 V/div.); Time Scale: 1 ms/div.  
Fig. 20: Turn-off transient for Vout = 3.3 V and 5.0 V with the removal  
of SEQ/ENA signal at full rated load current (resistive) and 1 μF  
external capacitance at Vin = 12 V. SEQ/ENA pins are tied together.  
Top Trace: SEQ/ENA Signal (5 V/div.); Middle Trace: Output Voltage  
of 5V POL (2V/div.); Bottom Trace: Output Voltage of 3.3V POL (2  
V/div.); Time Scale: 2 ms/div.  
Fig. 19: Turn-on transient for Vout = 3.3 V with the application of the  
input voltage at full rated load current (resistive) and 1 μF external  
capacitance at Vin = 12 V. Top Trace: Input Voltage Signal (5 V/div.);  
Bottom Trace: Output Voltage (1 V/div.); Time Scale: 1 ms/div.  
ZD-01983 Rev. 2.1, 25-Jun-10  
www.power-one.com  
Page 10 of 12  
YV12T25 DC-DC Converter  
10 - 14 VDC Input; 0.8 - 5.5 VDC Programmable @ 25 A  
Data Sheet  
Fig. 21: Output voltage ripple (20 mV/div.) at full rated  
Fig. 22: Output voltage ripple (20 mV/div.) at full rated  
load current into a resistive load with external capacitance 1 μF  
ceramic and Vin = 12 V for Vout = 3.3 V.  
Time Scale: 1 μs/div.  
load current into a resistive load with external capacitance  
1 μF ceramic and Vin = 12 V for Vout = 1.2 V.  
Time Scale: 1 μs/div.  
Fig. 23: Output voltage response for Vout = 3.3 V to positive load  
current step change from 12.5 A to 25 A with slew rate of 5 A/μs at  
Vin = 12 V. Top Trace: Output Voltage (100 mV/div.); Bottom Trace:  
Load Current (10 A/div.) Co =1 μF ceramic. Time Scale: 10 μs/div.  
Fig. 24: Output voltage response for Vout = 3.3 V to negative load  
current step change from 25 A to 12.5 A with slew rate of -5 A/μs at  
Vin = 12 V. Top Trace: Output Voltage (100 mV/div.); Bottom Trace:  
Load Current (10 A/div.) Co = 1 μF ceramic. Time Scale: 10 μs/div.  
ZD-01983 Rev. 2.1, 25-Jun-10  
www.power-one.com  
Page 11 of 12  
YV12T25 DC-DC Converter  
10 - 14 VDC Input; 0.8 - 5.5 VDC Programmable @ 25 A  
Data Sheet  
Physical Information  
Pad/Pin Connections  
Pad/Pin #  
Function  
SENSE+  
SENSE-  
Vin  
1
2
3
4
Ground  
Vout  
5
6
Vout  
7
Ground  
Ground  
Vout  
8
9
10  
11  
Vout  
GROUND  
Vin  
12  
13  
14  
SEQ/ENA  
SHARE  
YV12T25 Platform Notes  
All dimensions are in inches [mm]  
All pins are .032 x .032  
Pin Material & Finish: Copper C11000 with  
Matte Tin over Nickel  
Through-hole – SIP  
Tolerances:  
x.xxx in. +/- .010 [x.xx mm +/- 0.25]  
x.xx in. +/- .020 [x.x mm +/- 0.5]  
Converter Part Numbering Scheme  
Product  
Series  
Input  
Voltage  
Mounting  
Scheme  
Rated Load  
Current  
Enable Logic  
Environmental  
G
YV  
12  
T
25  
–
0
No Suffix RoHS  
lead-solder  
exemption compliant  
G RoHS lead-free  
solder compliant  
25 A  
(0.8 V to 5.5 V)  
T SIP  
Through-hole  
0 Standard  
(Negative Logic)  
YV-Series  
10 – 14 V  
The example above describes P/N YV12T25-0: 10 – 14 V input, through-hole (SIP), 25 A at 0.8 V to 5.5 V output, standard enable  
logic, and Eutectic Tin/Lead solder. Please consult factory for the complete list of available options.  
NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical  
components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written  
consent of the respective divisional president of Power-One, Inc.  
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on  
the date manufactured. Specifications are subject to change without notice.  
ZD-01983 Rev. 2.1, 25-Jun-10  
www.power-one.com  
Page 12 of 12  
厂商 型号 描述 页数 下载

POWER-ONE

 		YV12T25 YV12T25 DC- DC转换器[ YV12T25 DC-DC Converter ] 12 页

BEL

 		YV12T25-0 [ DC-DC Regulated Power Supply Module, 1 Output, Hybrid, SIP-14 ] 12 页

BEL

 		YV12T25-0G [ DC-DC Regulated Power Supply Module, 1 Output, Hybrid, SIP-14 ] 12 页

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