RYC8630-1M [OKI]
Peripheral Driver, 2 Driver, PDSO8;
| 型号： | RYC8630-1M |
| 厂家： | 
OKI ELECTRONIC COMPONETS |
| 描述： | Peripheral Driver, 2 Driver, PDSO8 光电二极管 |
| 文件： | 总9页 (文件大小：315K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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
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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.
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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
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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.
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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)
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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)
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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
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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
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