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RYC8620-1MZ0AL

型号:

RYC8620-1MZ0AL

品牌:

OKI[ OKI ELECTRONIC COMPONETS ]

页数:

14 页

PDF大小:

168 K

FEDLRYC8620_21_30-xxZ0AL-01  
Issue Date: June. 4, 2007  
OKI Semiconductor  
RYC8620/21/30-xxZ0AL  
Protected Power Switch  
GENERAL DESCRIPTION  
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 output MOSFET  
typically has a low on resistance of 100m:. The RYC8620/21/30 series of power switches 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 RYC8620/21/30 features undervoltage lockout,  
soft start and reverse current blocking when disabled.  
RYC8620/21/30 devices are available with multiple current limits. Custom current limit levels may be available  
on request.  
FEATURES  
Designed for USB applications  
Low Rds on, typical 100m  
Fast over-current 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.  
Under-voltage lockout (UVLO)  
8 pin SOIC package  
UL Recognized  
Typical Current Limit  
RYC8620: 1.0A  
RYC8621: 1.2A  
RYC8630: 1.5A  
APPLICATIONS  
USB peripherals  
Notebook PCs  
PDAs  
PC card hot swap  
General purpose power switches  
1/14  
FEDLRYC8620_21_30-xxZ0AL-01  
OKI Semiconductor  
RYC8620/21/30-xxZ0AL  
TYPICAL APPLICATION SCHEMATIC  
Vcc  
50k  
50k  
LOGIC CONTROLLER  
RYC86xx  
ENA  
Vin  
Enable  
OUTA  
OUTPUTA  
100μF  
Over-Current  
Over-Current  
FLGA  
FLGB  
IN  
GND  
10μF  
OUTPUTB  
GND  
Enable  
ENB  
OUTB  
100μF  
ORDERING INFORMATION  
Part Description  
Enable  
Continuous  
Current (A)  
Package  
Tape and Reel  
Quantity  
RYC8620-1MZ0AL  
RYC8620-2MZ0AL  
RYC8621-1MZ0AL  
RYC8621-2MZ0AL  
RYC8630-1MZ0AL  
RYC8630-2MZ0AL  
Active High  
0.6  
0.6  
0.7  
0.7  
1.1  
1.1  
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  
Active Low  
Active High  
Active Low  
Active High  
Active Low  
Note: Other current may be available, please contact factory.  
2/14  
FEDLRYC8620_21_30-xxZ0AL-01  
OKI Semiconductor  
RYC8620/21/30-xxZ0AL  
PIN CONFIGURATION  
1
2
3
4
8
7
6
5
ENA  
FLGA  
FLGB  
ENB  
OUTA  
IN  
GND  
OUTB  
DEVICE MARKING  
8620  
- 2M  
  
Part ID1  
Part ID2  
Lot ID  
PIN DESCRIPTION  
Pin Number  
1, 4  
Pin Name  
EN(A/B)  
Pin Function  
Enable (Input): Logic-compatible enable input. Do not float.  
High input > 2.4V. Low input <0.8V (-1 active high, -2 active low).  
2, 3  
5, 8  
FLG(A/B) Fault Flag (Output): Active-low open-drain output. Indicates overcurrent,  
UVLO and thermal shutdown.  
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 ICs internal circuitry.  
Connect to positive supply.  
3/14  
FEDLRYC8620_21_30-xxZ0AL-01  
OKI Semiconductor  
RYC8620/21/30-xxZ0AL  
FUNCTIONAL DIAGRAM  
Charge Pump  
FLGA  
Current  
Limit  
Port A Flag  
Control &  
Deglitch  
ENA  
OUTA  
V_in  
Port A  
OC Logic  
Port A  
OC Detection  
SWA Gate  
Drive  
I Sensor A  
I Sensor B  
Thermal.  
Shutdown  
UVLO  
Temp.  
Sensor  
SWB Gate  
Drive  
Port B  
OC Detection  
Port B  
OC Logic  
OUTB  
FLGB  
ENB  
Port B Flag  
Control &  
Deglitch  
Oscillator  
Current  
Limit  
Charge Pump  
GND  
4/14  
FEDLRYC8620_21_30-xxZ0AL-01  
OKI Semiconductor  
RYC8620/21/30-xxZ0AL  
ABSOLUTE MAXIMUM RATINGS (Notes 1, 2)  
Parameter  
Max main supply voltage  
Symbol  
Value  
-0.3 to +6  
-0.3 to +6  
+6  
Units  
V
VIN  
VIN  
Max voltage, all I/O pins  
Output voltage  
V
VOUT  
IOUT  
VEN  
TS  
V
Output current  
Internally limited  
0.3 to 5.5  
65 to +150  
25  
A
Control input  
V
Storage temperature  
Fault flag current  
°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  
Supply voltage, Note 4  
Symbol  
VIN  
Value  
Units  
V
+3.0 to +5.5  
RYC8620 0.6  
RYC8621 0.7  
RYC8630 1.1  
A
A
A
Continuous Output Current  
IOUT  
Ambient operating temperature  
TA  
-40 to +85  
120  
°C  
Thermal resistance (8 pin SOIC), Note 5  
θ JA  
°C/W  
Note 3. The device is not designed to function outside its operating rating.  
Note 4. UL recognized at 3.3 5Vdc  
5/14  
FEDLRYC8620_21_30-xxZ0AL-01  
OKI Semiconductor  
RYC8620/21/30-xxZ0AL  
ELECTRICAL CHARACTERISTICS (VIN = +5V; TA = 25°C; unless noted.)  
Power Switch  
Condition  
VIN = 5V, IOUT = 500mA, Note 6  
VIN = 3.3V, IOUT = 500mA, Note 6  
RL = 50 , CL = 1µF, each output, sum of delay+  
rise time.  
Min  
Typ Max Units  
Pin to Pin Resistance  
100  
100  
0.5  
140  
140  
1.0  
mΩ  
Output Turn-On Time  
Output Turn-Off Time  
0.2  
10  
ms  
µs  
RL = 50 , CL = 1µF, each output, sum of delay+  
fall time  
150  
300  
Current Limit  
Condition  
Min  
0.6  
Typ Max Units  
Short-circuit Current Limit  
RYC8620 Short circuit applied to the output pin  
of EN device with 1load  
1.0  
1.2  
1.5  
1
1.25  
1.35  
2.2  
A
RYC8621 Short circuit applied to the output pin  
of EN device with 1load  
0.7  
1.1  
A
RYC8630 Short circuit applied to the output pin  
of EN device with 1load  
A
Short-circuit Response Time Short-circuit applied to the output port of EN  
device ('Hot-plugged short') VOUT = 5.0V, RL =  
0.5 , Note 5  
µs  
Enable Input  
Condition  
Low-to-high transition, Note 7  
High-to-low transition, Note 7  
VEN = 0V to 5.5V  
Min  
Typ Max Units  
Enable Input Threshold  
1.8  
1.7  
2.4  
V
V
0.8  
Enable Input Current  
0.01  
1
5
µA  
pF  
Enable Input Capacitance  
Note 5  
Leakage Current  
Supply Current  
Condition  
Switch off, OUT = open  
Min  
Typ Max Units  
6
100  
1
15  
200  
20  
µA  
µA  
µA  
All switches on, OUT = open  
Each output, output disabled  
Output Leakage Current  
0.01  
Min  
Over-temperature and UVLO  
Condition  
Typ Max Units  
Over-temperature Shutdown TJ increasing, Note 5  
130  
120  
2.3  
°C  
°C  
V
Threshold  
TJ decreasing, Note 5  
VIN = increasing  
UVLO Threshold  
VIN = decreasing  
2.0  
V
Error Flag  
Condition  
Min  
Typ Max Units  
Error Flag Output Resistance VIN = 5V, IL = 10mA, open drain  
10  
100  
1
Error Flag Off Current  
VFLAG = 5V  
0.01  
µA  
Fault on over-current, UVLO and thermal  
shutdown, Note 8  
Error Flag Output Deglitch  
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.  
6/14  
FEDLRYC8620_21_30-xxZ0AL-01  
OKI Semiconductor  
RYC8620/21/30-xxZ0AL  
TYPICAL CHARACTERISTICS  
OUT  
tr  
tr  
RL  
CL  
90%  
90%  
VOUT  
10%  
10%  
Test Circuit  
Output rise and fall time  
50%  
50%  
90%  
50%  
50%  
VEN  
VEN  
tON  
tON  
tOFF  
tOFF  
90%  
VOUT  
VOUT  
10%  
10%  
Active-low switch delay time  
Active-high switch delay time  
Figure 1. Test Circuit and Timing Diagram  
Figure 2. Turn-on Delay Time VIN = 5V, RL = 10 Ω  
Figure 3. Enable into Short Circuit (note the 13 ms flag delay)  
VIN = 5V, RL = 0.1 Ω  
7/14  
FEDLRYC8620_21_30-xxZ0AL-01  
OKI Semiconductor  
RYC8620/21/30-xxZ0AL  
Figure 4. Enable into Short Circuit (extended time with thermal cycling)  
VIN = 5V, RL = 0.1 Ω  
Figure 5. Hot-plugged Short Circuit VIN = 5V, RL = 0.1 Ω  
Figure 6. Hot-plugged Short Circuit (extended time with thermal cycling)  
VIN = 5V, RL = 0.05 Ω  
8/14  
FEDLRYC8620_21_30-xxZ0AL-01  
OKI Semiconductor  
RYC8620/21/30-xxZ0AL  
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  
9/14  
FEDLRYC8620_21_30-xxZ0AL-01  
OKI Semiconductor  
RYC8620/21/30-xxZ0AL  
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 100m. 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 Over-temperature  
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.  
10/14  
FEDLRYC8620_21_30-xxZ0AL-01  
OKI Semiconductor  
RYC8620/21/30-xxZ0AL  
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  
50k  
LOGIC CONTROLLER  
RYC86xx  
ENA  
Vin  
Enable  
OUTA  
OUTPUTA  
OUTPUTB  
100μF  
Over-Current  
Over-Current  
FLGA  
FLGB  
IN  
GND  
10μF  
GND  
Enable  
ENB  
OUTB  
100μF  
11/14  
FEDLRYC8620_21_30-xxZ0AL-01  
OKI Semiconductor  
RYC8620/21/30-xxZ0AL  
PACKAGE INFORMATION  
8-lead SOIC PACKAGE NOTES:  
1
2
3
4
5
Dimensions and tolerance per ANSI Y14.5M-1982.  
Dimensions A and B are datums and T is a datum surface.  
Controlling dimensions: Millimeters  
Dimension A and B do not include mold flash. Mold flash shall not exceed 0.15mm [0.006] per side.  
Dimension D does not include interlead flash. Interlead flash shall not exceed 0.25 mm [0.010].  
12/14  
FEDLRYC8620_21_30-xxZ0AL-01  
OKI Semiconductor  
RYC8620/21/30-xxZ0AL  
Revision History  
Page  
Previous  
Edition  
Document No.  
Date  
Description  
First Edition  
Current  
Edition  
FEDLRYC8620_21_  
30-xxZ0AL-01  
June. 4, 2007  
13/14  
FEDLRYC8620_21_30-xxZ0AL-01  
OKI Semiconductor  
NOTICE  
RYC8620/21/30-xxZ0AL  
1. The information contained herein can change without notice owing to product and/or technical improvements.  
Before using the product, please make sure that the information being referred to is up-to-date.  
2. The outline of action and examples for application circuits described herein have been chosen as an explanation  
for the standard action and performance of the product. When planning to use the product, please ensure that the  
external conditions are reflected in the actual circuit, assembly, and program designs.  
3. When designing your product, please use our product below the specified maximum ratings and within the  
specified operating ranges including, but not limited to, operating voltage, power dissipation, and operating  
temperature.  
4. Oki assumes no responsibility or liability whatsoever for any failure or unusual or unexpected operation  
resulting from misuse, neglect, improper installation, repair, alteration or accident, improper handling, or  
unusual physical or electrical stress including, but not limited to, exposure to parameters beyond the specified  
maximum ratings or operation outside the specified operating range.  
5. Neither indemnity against nor license of a third partys industrial and intellectual property right, etc. is granted  
by us in connection with the use of the product and/or the information and drawings contained herein. No  
responsibility is assumed by us for any infringement of a third partys right which may result from the use  
thereof.  
6. The products listed in this document are intended for use in general electronics equipment for commercial  
applications (e.g., office automation, communication equipment, measurement equipment, consumer  
electronics, etc.). These products are not, unless specifically authorized by Oki, authorized for use in any  
system or application that requires special or enhanced quality and reliability characteristics nor in any system  
or application where the failure of such system or application may result in the loss or damage of property, or  
death or injury to humans.  
Such applications include, but are not limited to, traffic and automotive equipment, safety devices, aerospace  
equipment, nuclear power control, medical equipment, and life-support systems.  
7. Certain products in this document may need government approval before they can be exported to particular  
countries. The purchaser assumes the responsibility of determining the legality of export of these products and  
will take appropriate and necessary steps at their own expense for these.  
8. No part of the contents contained herein may be reprinted or reproduced without our prior permission.  
Copyright 2007 Oki Electric Industry Co., Ltd.  
14/14  
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