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RYC8621-1M

型号：

RYC8621-1M

品牌：

OKI[ OKI ELECTRONIC COMPONETS ]

页数：

9 页

PDF大小：

315 K

下载PDF手册
Power Management ICs  
Document: SCD 25389  
Status: Released  
Rev. E  
RYC8620/21/30  
Protected Power Switch  
Date: September 3, 2004  
GENERAL DESCRIPTION  
FEATURES  
RYC8620/21/630 is a series of dual channel  
protected power switches designed for USB and  
other 3.3V to 5V high-side power switched  
applications. Each channel can be separately  
enabled and has a deglitched fault flag to  
minimize nuisance tripping when high inrush  
current devices are plugged into the port. The  
•
•
•
Designed for USB applications  
Low Rds on, typical 100mΩ  
Fast overcurrent shut down minimizes peak inrush  
current  
Built-in flag deglitch to minimize nuisance tripping  
Independent OC and OT protection  
Soft start  
Reverse current blocking when disabled.  
Undervoltage lockout (UVLO)  
8 pin SOIC package  
•
•
•
•
•
•
•
•
output MOSFET typically has  
a
low on  
resistance of 100mΩ. The RYC8620/21/30  
series of power switches provides channel  
independent  
current  
limiting  
and  
UL Recognized  
Typical Current Limit  
RYC8620: 1.0A  
RYC8621: 1.2A  
overtemperature protection. In an overcurrent  
event the offending channel is turned off  
allowing normal operation on the other channel.  
The RYC8620/21/30 features undervoltage  
lockout, soft start and reverse current blocking  
when disabled.  
o
o
o
RYC8630: 1.5A  
RYC8620/21/30 devices are available with  
multiple current limits. Custom current limit  
levels may be available on request.  
APPLICATIONS  
•
•
•
•
•
USB peripherals  
Notebook PCs  
PDAs  
PC card hot swap  
General purpose power switches  
TYPICAL APPLICATION SCHEMATIC  
Vcc  
50k  
LOGIC CONTROLLER  
50k  
RYC86xx  
ENA  
Vin  
Enable  
OverCurrent  
OverCurrent  
Enable  
OUTA  
IN  
OUTPUTA  
FLGA  
FLGB  
ENB  
µ
100 F  
µ
10 F  
GND  
OUTB  
OUTPUTB  
GND  
µ
100 F  
Oki Semiconductor  
www.okisemi.com/us  
1 of 9  
Power Management ICs  
Document: SCD 25389  
Status: Released  
Rev. E  
RYC8620/21/30  
Protected Power Switch  
Date: September 3, 2004  
ORDERING INFORMATION  
Part  
Part  
Enable  
Continuous Current  
Package  
Tape and Reel  
Quantity  
Description  
RYC8620-1M  
RYC8620-2M  
RYC8621-1M  
RYC8621-2M  
RYC8630-1M  
RYC8630-2M  
Number  
(A)  
0.6  
0.6  
0.7  
0.7  
1.1  
1.1  
D17540-000  
A05322-000  
A22854-000  
E04678-000  
C36814-000  
A22843-000  
Active High  
Active Low  
Active High  
Active Low  
Active High  
Active Low  
8-lead SOIC  
8-lead SOIC  
8-lead SOIC  
8-lead SOIC  
8-lead SOIC  
8-lead SOIC  
2,500 pcs  
2,500 pcs  
2,500 pcs  
2,500 pcs  
2,500 pcs  
2,500 pcs  
Note: Other current may be available, please contact factory.  
MATERIALS INFORMATION  
ROHS Compliant  
ELV Compliant  
Pb-Free  
PIN CONFIGURATION  
DEVICE MARKING  
Raychem Logo  
ENA  
FLGA  
FLGB  
1
8
7
6
5
OUTA  
IN  
Part ID1  
Part ID2  
Lot ID  
8620  
- 2M  
2
3
GND  
OUTB  
ENB  
4
PIN DESCRIPTION  
Pin Number  
1, 4  
Pin Name Pin Function  
EN(A/B)  
Enable (Input): Logic-compatible enable input. High input > 2.4V.  
Low input <0.8V (-1 active high, -2 active low). Do not float.  
Fault Flag (Output): Active-low open-drain output. Indicates overcurrent,  
UVLO and thermal shutdown.  
2, 3  
5, 8  
FLG(A/B)  
OUT(A/B) Switch Output: Output MOSFET source. Typically connects to switched side  
of load.  
6
7
GND  
IN  
Ground: Supply return.  
Supply Input: Output MOSFET drain. Also supplies IC’s internal circuitry.  
Connect to positive supply.  
Oki Semiconductor  
www.okisemi.com/us  
2 of 9  
Power Management ICs  
Document: SCD 25389  
Status: Released  
Rev. E  
RYC8620/21/30  
Protected Power Switch  
Date: September 3, 2004  
FUNCTIONAL DIAGRAM  
Charge Pump  
FLGA  
OUTA  
Port A Flag  
Control &  
Deglitch  
Current  
Limit  
ENA  
Port A  
OC Logic  
Port A  
OC Detection.  
SWA Gate  
Drive  
I Sensor A  
I Sensor B  
Thermal  
Shutdown  
.
V_in  
UVLO  
Temp.  
Sensor  
SWB Gate  
Drive  
Port B  
OC Detection  
Port B  
OC Logic  
OUTB  
ENB  
Port B Flag  
Control &  
Deglitch  
Oscillator  
Current  
Limit  
FLGB  
Charge Pump  
GND  
ABSOLUTE MAXIMUM RATINGS (Notes 1, 2)  
Parameter  
Symbol  
VIN  
Value  
-0.3 to +6  
-0.3 to +6  
+6  
Units  
V
Max main supply voltage  
Max voltage, all I/O pins  
Output voltage  
VIN  
V
VOUT  
IOUT  
VEN  
V
Output current  
Internally limited  
A
Control input  
V
− 0.3 to 5.5  
− 65 to +150  
25  
Storage temperature  
Fault flag current  
TS  
°C  
mA  
°C  
IFLG  
Max lead temperature during soldering (5 sec.)  
260  
Note 1. Operation beyond absolute maximum rating or improper use may result in permanent damage to the device. Exposure to absolute  
maximum rating conditions for extended periods or to conditions beyond absolute maximum rating conditions may adversely affect device  
reliability. Functional operation under absolute maximum rating conditions is not implied.  
Note 2. Devices are ESD sensitive. Handling precautions recommended.  
OPERATING RATINGS (Note 3)  
Parameter  
Symbol  
Value  
Units  
Supply voltage, Note 4  
VIN  
+3.0 to +5.5  
V
RYC8620  
RYC8621  
RYC8630  
0.6  
0.7  
1.1  
A
A
A
Continuous Output Current  
IOUT  
Ambient operating temperature  
TA  
-40 to +85  
°C  
Thermal resistance (8 pin SOIC), Note 5  
120  
°C/W  
θ JA  
Note 3. The device is not designed to function outside its operating rating.  
Note 4. UL recognized at 3.3 – 5Vdc  
Oki Semiconductor  
www.okisemi.com/us  
3 of 9  
Power Management ICs  
Document: SCD 25389  
Status: Released  
Rev. E  
RYC8620/21/30  
Protected Power Switch  
Date: September 3, 2004  
ELECTRICAL CHARACTERISTICS (VIN = +5V; TA = 25°C; unless noted.)  
Power Switch  
Condition  
Min  
Typ  
100  
100  
0.5  
Max  
140  
140  
1.0  
Units  
mΩ  
Pin to Pin Resistance  
VIn = 5V, I OUT = 500mA, Note 6  
VIn = 3.3V, I OUT = 500mA, Note 6  
Output Turn-On Time  
Output Turn-Off Time  
0.2  
10  
ms  
RL = 50 Ω, CL = 1µF, each output, sum of delay+ rise time.  
RL = 50 Ω, CL = 1µF, each output, sum of delay+ fall time  
150  
300  
µs  
Current Limit  
Condition  
Min  
Typ  
Max  
Units  
Short-circuit Current Limit  
0.6  
1.0  
1.25  
A
RYC8620 Short circuit applied to the output pin of EN device with  
1Ω load  
0.7  
1.1  
1.2  
1.5  
1
1.35  
2.2  
A
A
RYC8621 Short circuit applied to the output pin of EN device with  
1Ω load  
RYC8630 Short circuit applied to the output pin of EN device with  
1Ω load  
Short-circuit applied to the output port of EN device ('Hot-plugged short')  
VOUT = 5.0V, RL = 0.5 Ω, Note 5  
Short-circuit Response Time  
µs  
Enable Input  
Enable Input Threshold  
Condition  
Min  
Typ  
1.8  
1.7  
Max  
2.4  
Units  
V
V
µA  
pF  
Low-to-high transition, Note 7  
High-to-low transition, Note 7  
VEN = 0V to 5.5V  
0.8  
0.01  
Enable Input Current  
Enable Input Capacitance  
1
5
Note 5  
Leakage Current  
Supply Current  
Condition  
Min  
Typ  
6
100  
1
Max  
15  
200  
20  
Units  
µA  
µA  
Switch off, OUT = open  
All switches on, OUT = open  
Each output, output disabled  
Output Leakage Current  
0.01  
µA  
Overtemperature and UVLO  
Overtemperature Shutdown  
Threshold  
Condition  
Min  
Typ  
130  
120  
2.3  
Max  
Units  
°C  
°C  
V
TJ increasing, Note 5  
TJ decreasing, Note 5  
VIn = increasing  
VIn = decreasing  
UVLO Threshold  
2.0  
V
Error Flag  
Condition  
VIn = 5V, IL = 10mA, open drain  
VFLAG = 5V  
Min  
Typ  
10  
Max  
100  
1
Units  
Ω
µA  
Error Flag Output Resistance  
Error Flag Off Current  
Error flag output deglitch  
0.01  
Fault on overcurrent, UVLO and thermal shutdown, Note 8  
12  
20  
ms  
Note 5. Validated by design, but not production tested.  
Note 6. Pin to Pin total resistance includes lead frame, silicon die metalization, bond wire and FET Rdson resistances. Please be aware that  
some manufacturers only specify the Rdson value, which can be significantly less than the total pin to pin resistance.  
Note 7. VIN should be within the operating range before the device is enabled.  
Note 8. No error flag out deglitch on UVLO and thermal shutdown.  
Oki Semiconductor  
www.okisemi.com/us  
4 of 9  
Power Management ICs  
Document: SCD 25389  
Status: Released  
Rev. E  
RYC8620/21/30  
Protected Power Switch  
Date: September 3, 2004  
TYPICAL CHARACTERISTICS  
Figure 1. Test Circuit and Timing Diagram  
Figure 2. Turn-on Delay Time  
VIN = 5V, RL = 10 Ω  
Time (200 µs/div)  
VEN  
(5V/div)  
OUT  
tr  
tf  
RL  
CL  
90% 90%  
VOUT  
VFLG  
(5V/div)  
10%  
10%  
Output rise and fall  
time  
Test Circuit  
VOUT  
(5V/div)  
50%  
50% 50%  
50%  
90%  
VEN  
VEN  
tON  
tOFF  
tON  
tOFF  
90%  
VOUT  
VOUT  
IOUT  
10%  
10%  
(0.5A/div)  
Active-low switch delay  
time  
Active-high switch delay  
time  
Figure 3. Enable into Short Circuit  
(note the 13 ms flag delay)  
VIN = 5V, RL = 0.1 Ω  
Figure 4. Enable into Short Circuit  
(extended time with thermal cycling)  
VIN = 5V, RL = 0.1 Ω  
Time (2 ms/div)  
Time (50 ms/div)  
VEN  
(5V/div)  
VEN  
(5V/div)  
VFLG  
(5V/div)  
VFLG  
(5V/div)  
VOUT  
(5V/div)  
VOUT  
(5V/div)  
IOUT  
(0.5A/div)  
IOUT  
(0.5A/div)  
Oki Semiconductor  
www.okisemi.com/us  
5 of 9  
Power Management ICs  
Document: SCD 25389  
Status: Released  
Rev. E  
RYC8620/21/30  
Protected Power Switch  
Date: September 3, 2004  
Figure 5. Hot-plugged Short Circuit  
Figure 6. Hot-plugged Short Circuit  
VIN = 5V, RL = 0.1 Ω  
(extended time with thermal cycling)  
VIN = 5V, RL = 0.05 Ω  
Time (50 ms/div)  
Time (200 µs/div)  
VEN  
(5V/div)  
VFLG  
VEN  
(5V/div)  
VFLG  
(5V/div)  
(5V/div)  
VOUT  
(5V/div)  
VOUT  
(5V/div)  
IOUT  
(0.5A/div)  
IOUT  
(0.5A/div)  
Figure 7. Nuisance Trip Elimination  
Hot plugged into a capacitive load  
VIN = 5V, RL = 10 Ω, CL = 1880 µF  
Figure 8. Independent OC/OT Coordination  
VIN = 5V, RLA = 10 Ω, RLB = 0.1 Ω  
Time (10 ms/div)  
Time (50 ms/div)  
VFLGA  
(5V/div)  
VEN  
(5V/div)  
VFLGB  
(5V/div)  
VFLG  
(5V/div)  
IOUTA  
(0.5 A/div)  
IOUTB  
(1 A/div)  
IOUT  
(0.5 A/div)  
Oki Semiconductor  
www.okisemi.com/us  
6 of 9  
Power Management ICs  
Document: SCD 25389  
Status: Released  
Rev. E  
RYC8620/21/30  
Protected Power Switch  
Date: September 3, 2004  
FUNCTIONAL DESCRIPTION  
The RYC86xx is a series of dual channel protected power switches designed for USB, SD Memory, and other 3.3V  
to 5V high-side power switched applications. Each channel can be separately enabled and has a deglitched fault  
flag to minimize nuisance tripping when high inrush current devices are plugged into the port. The output MOSFET  
typically has a low on resistance of 100mΩ. The RYC86xx provides channel independent current limiting and  
overtemperature protection. In an overcurrent event, the offending channel is turned off allowing normal operation  
on the other channel. The RYC86xx features undervoltage lockout, soft start and reverse current blocking when  
disabled.  
Current Limit and Overtemperature  
The RYC86xx is designed to support two power ports. The current limit is 0.6A minimum and 1.25A maximum for the  
RYC8620, 0.7A minimum and 1.35A maximum for RYC8621 and 1.1A minimum and 2.2A maximum for the  
RYC8630. When the current limit is exceeded, the device will first limit the current and then, if necessary, will go into  
thermal shutdown when the die temperature reaches approximately 130°C. When the temperature falls 10°C below  
the thermal shutdown temperature, the device will restart. If the fault has not been removed, the device will continue  
to cycle on and off. The frequency of the cycle is dependent on the impedance of the fault and the thermal  
environment. Each channel operates independently and in a fault event will be protected while allowing the other  
channel to operate normally.  
Enable Pull Up/Down  
The EN input is logic level compatible. The enable pin should not be allowed to float; a pull-up/pull-down resistor  
(depending on the polarity of the enable) should be used to tie the pin high/low.  
Fault Flag  
The fault flag signal is asserted low when an overcurrent, overtemperature or undervoltage event occurs. In the  
event of an overcurrent, the fault flag is deglitched for approximately 10 ms to minimize nuisance tripping. The  
FLAG pin is an open drain design and will require a pull-up resistor.  
Undervoltage lockout (UVLO)  
If the supply voltage (V_aux) drops below approximately 2.0V the RYC86xx will turn off. The undervoltage limit  
protects the hub from operating at voltages too low to assure reliable logic operation.  
Soft Start  
When the device is first enabled into a load, the device is turned on slowly and requires typically 0.5 ms to reach  
90% of the operating voltage.  
Oki Semiconductor  
www.okisemi.com/us  
7 of 9  
Power Management ICs  
Document: SCD 25389  
Status: Released  
Rev. E  
RYC8620/21/30  
Protected Power Switch  
Date: September 3, 2004  
APPLICATION INFORMATION  
Input Capacitor  
Decoupling input capacitors (0.1 µF) should be used to tie the VIN pin to ground to minimize voltage transients.  
Input transients which exceed the absolute maximum rating may cause damage to the device.  
Output Capacitors  
Decoupling capacitors (0.1 µF) between the output and ground are also recommended to reduce the impact of other  
voltage transients such as ESD. Output capacitors will help minimize negative voltage spikes due to parasitic  
inductance. USB specifications require 120 µF of low ESR output capacitance per hub.  
Vcc  
50k  
LOGIC CONTROLLER  
50k  
RYC86xx  
ENA  
Vin  
Enable  
OverCurrent  
OverCurrent  
Enable  
OUTA  
IN  
OUTPUTA  
FLGA  
FLGB  
ENB  
µ
100 F  
µ
10 F  
GND  
OUTB  
OUTPUTB  
GND  
µ
100 F  
Oki Semiconductor  
www.okisemi.com/us  
8 of 9  
Power Management ICs  
Document: SCD 25389  
Status: Released  
Rev. E  
RYC8620/21/30  
Protected Power Switch  
Date: September 3, 2004  
PACKAGE INFORMATION  
MIN  
mm  
MAX  
mm  
MIN  
inch  
MAX  
inch  
DIMENSION  
A
B
C
D
F
4.80  
3.80  
1.35  
0.35  
0.40  
5.00  
4.00  
1.75  
0.49  
1.27  
0.190  
0.150  
0.054  
0.013  
0.016  
0.197  
0.157  
0.068  
0.020  
0.050  
G
J
K
M
P
1.27 BSC  
0.050 BSC  
0.18  
0.10  
0°  
0.25  
0.25  
8°  
0.0075  
0.004  
0°  
0.010  
0.010  
8°  
5.80  
6.20  
0.228  
0.244  
8-lead SOIC PACKAGE NOTES:  
1. Dimensions and tolerance per ANSI Y14.5M-1982.  
2. Dimensions A and B are datums and T is a datum surface.  
3.  
Controlling dimensions: Millimeters  
4. Dimension A and B do not include mold flash. Mold flash shall  
not exceed 0.15mm [0.006] per side.  
5. Dimension D does not include interlead flash. Interlead flash  
shall not exceed 0.25 mm [0.010].  
Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of each product for  
their applications. Oki Semiconductor assumes no responsibility for the use of its product or for any infringement of patents or other rights of third  
parties resulting from the use of its product. No license is granted by implication or otherwise under any patent or proprietary right of Oki  
Semiconductor except the right to use such product for the purpose for which it is sold. Oki Semiconductor reserves the right to change or  
update, without notice, any information contained in this publication; to change, without notice, the design, construction, processing, or  
specification of any product; and to discontinue or limit production or distribution of any product. This publication supersedes and replaces all  
information previously supplied. Without express written consent by an officer of Oki Semiconductor, Oki Semiconductor does not authorize the  
use of any its products as components in nuclear facility applications, aerospace, or in critical life support devices or systems. Oki  
Semiconductor’ only obligations are those in the Oki Semiconductor Standard Terms and Conditions of Sale and in no case will Oki  
Semiconductor be liable for any incidental, indirect, or consequential damages arising from the sale, resale, use, or misuse of its products.  
Raychem is a trademark of Tyco Electronics Corporation  
© 2006 Oki Semiconductor  
Oki Semiconductor  
www.okisemi.com/us  
9 of 9  
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