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PDF TD9517 Data sheet ( Hoja de datos )

Número de pieza TD9517
Descripción USB Power-Distribution Switches
Fabricantes Techcode 
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Techcode®
USB Power-Distribution Switches
DATASHEET
TD9516/TD9517/TD9518/TD9519
General Description
Features
The TD9516/TD9517/TD9518/TD9519 series of power
switches are designed for USB applications. The
62mN-channel MOSFET power switch satisfies the voltage
drop requirements of USB specification.
The protection features include current-limit protection,
short-circuit protection, and over-temperature
protection.The device limits the output current at current
limit threshold level. When VOUT drops below 1.5V, the devices
limit the current to a lower and safe level. The
over-temperature protection limits the junction temperature
below 140oC in case of short circuit or over load
conditions.Other features include a deglitched OCB output to
indicate the fault condition and an enable input to enable or
disable the device.
62mΩ High Side MOSFET
Wide Supply Voltage Range: 2.7V to 5.5V
Current-Limit and Short-Circuit Protections
Over-Temperature Protection
Fault Indication Output
Enable Input
Lead Free and Green Devices Available
Applications
Notebook and Desktop Computers
USB Ports
High-Side Power Protection Switches
Pin Configurations
SOT-23-5(Top View)
TD9516A/TD9517A
SOT-23-5(Top View)
TD9518A/TD9519A
SOT-23-5(Top View)
TD9516B/TD9517B
SOT-23-5(Top View)
TD9518B/TD9519B
Figure Pin Configuration of TD9516/TD9517/TD9518/TD9519(Top View)
October, 20, 2011.
Techcode Semiconductor Limited
1
www.techcodesemi.com

1 page




TD9517 pdf
Techcode®
USB Power-Distribution Switches
DATASHEET
TD9516/TD9517/TD9518/TD9519
Electrical Characteristics
Unless otherwise specified, these specifications apply over VIN=5V, VEN =5V or VENB=0V and TA= -40 ~ 85 oC. Typical values are at TA=25oC.
Symbol
Parameter
Test Conditions
SUPPLY CURRENT
VIN Supply Current
No load, VEN=0V or VENB=5V
No load, VEN=5V or VENB=0V
Leakage Current
VOUT=GND, VEN=0V or VENB=5V
Reverse Leakage Current
VIN=GND, VOUT=5V, VEN=0V or VENB=5V
POWER SWITCH
RDS(ON)
Power Switch On Resistance
IOUT=1A, TA= 25 oC
UNDER-VOLTAGE LOCKOUT (UVLO)
VIN UVLO Threshold Voltage
VIN rising, TA= -40 ~ 85 oC
VIN UVLO Hysteresis
CURRENT-LIMIT AND SHORT-CIRCUIT PROTECTIONS
ILIM
ISHORT
Current Limit Threshold
Short-Circuit Output Current
TD9517/TD9519 VIN=2.7V to 5.5V, TA= -40 ~ 85 oC
TD9516/TD9518 VIN=2.7V to 5.5V, TA= -40 ~ 85 oC
TD9517/TD9519, VIN=2.7V to 5.5V
TD9516/TD9518, VIN=2.7V to 5.5V
OCB OUTPUT PIN
OCB Output Low Voltage
IOCB=5mA
OCB Leakage Current
VOCB=5V
tD(OCB)
OCB Deglitch Time
OCB assertion, TA= -40 ~ 85 oC
EN OR ENB INPUT PIN
VIH Input Logic HIGH
VIN=2.7V to 5V
VIL Input Logic LOW
VIN=2.7V to 5V
Input Current
VOUT Discharge Resistance
VEN=0V or VENB=5V, VOUT=1V
tD(ON)
Turn On Delay Time
tD(OFF)
Turn Off Delay Time
tSS Soft-Start Time
No load, COUT=1F, VIN=5V
OVER-TEMPERATURE PROTECTION (OTP)
TOTP
Over-Temperature Threshold
TJ rising
Over-Temperature Hysteresis
Min. Typ.
--
60
--
--
62
1.7
0.2
2.5 2.8
1.1 1.3
1.5
0.8
0.2
5 12
2
40
30
30
400
140
20
Max.
Unit
1 A
100 A
1 A
1 A
78 m
2.65 V
V
3.1 A
1.5 A
A
A
0.4
1
20
V
uA
mS
V
0.8 V
1 uA
uS
uS
uS
C
C
October, 20, 2011.
Techcode Semiconductor Limited
5
www.techcodesemi.com

5 Page





TD9517 arduino
Techcode®
USB Power-Distribution Switches
Operating Waveforms
DATASHEET
TD9516/TD9517/TD9518/TD9519
VIN =5V, RLOAD =30, CIN =33F/Electrolytic,
COUT =1F/Electrolytic
CH1: VENB, 5V/Div, DC
CH2: VOUT, 2V/Div, DC
TIME: 200s/Div
VIN =5V, RLOAD =30, CIN =33F/Electrolytic,
COUT =1F/Electrolytic
CH1: VENB, 5V/Div, DC
CH2: VOUT, 2V/Div, DC
TIME: 100s/Div
VIN =5V, RLOAD =30, CIN =33F/Electrolytic,
COUT =1F/Electrolytic
CH1: VIN, 1V/Div, DC
CH2: VOUT, 1V/Div, DC
TIME: 2ms/Div
VIN =5V, RLOAD =30, CIN =33F/Electrolytic,
COUT =1F/Electrolytic
CH1: VIN, 1V/Div, DC
CH2: VOUT, 1V/Div, DC
TIME: 2ms/Div
October, 20, 2011.
Techcode Semiconductor Limited
11
www.techcodesemi.com

11 Page







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