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TD9519 Dataheets PDF



Part Number TD9519
Manufacturers Techcode
Logo Techcode
Description USB Power-Distribution Switches
Datasheet TD9519 DatasheetTD9519 Datasheet (PDF)

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 VO.

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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 Techcode® USB Power-Distribution Switches Pin Description DATASHEET TD9516/TD9517/TD9518/TD9519 Pin Number TD9516/ TD9517 TD9518/ TD9519 15 22 31 43 54 Pin Name Description VOUT GND OCB EN ENB VIN Output Voltage Pin. The output voltage follows the input voltage. When ENB is high or EN is low, the output voltage is discharged by an internal resistor. Ground. Fault Indication Pin. This pin goes low when a current limit or an over-temperature condition is detected after a 12ms deglitch time. Enable Input. Pulling this pin to high will enable the device and pulling this pin to low will disable device. The EN pin cannot be left floating. Enable Input. Pulling this pin to high will enable the device and pulling this pin to low will disable device. The EN pin cannot be left floating. Power Supply Input. Connect this pin to external DC supply. Ordering Information Circuit Type A/B: A- Enable High B- Enable Low T:SOT-23 TD951X □ □ □ Packing: Blank:Tube R:Type and Reel October, 20, 2011. Techcode Semiconductor Limited 2 www.techcodesemi.com Techcode® USB Power-Distribution Switches Functional Block Diagram DATASHEET TD9516/TD9517/TD9518/TD9519 Absolute Maximum Ratings Symbol Parameter Rating Unit VIN VIN Input Voltage (VIN to GND) -0.3 ~ 7 V VOUT VOUT to GND Voltage -0.3 ~ 7 V VENB, VEN EN, ENB to GND Voltage -0.3 ~ 7 V VOCB OCB to GND Voltage -0.3 ~ 7 V TJ Maximum Junction Temperature 150 oC TSTG Storage Temperature -65 ~ 150 oC TSDR Maximum Soldering Temperature, 10 Seconds 260 oC Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. October, 20, 2011. Techcode Semiconductor Limited 3 www.techcodesemi.com Techcode® USB Power-Distribution Switches Recommended Operating Conditions DATASHEET TD9516/TD9517/TD9518/TD9519 Symbol Parameter VIN VIN Input Voltage VCC VCC Supply Voltage OUT Output Current (TD9516/TD9518) IOUT OUT Output Current (TD9517/TD9519) TA Ambient Temperature TJ Junction Temperature Note: Refer to the typical application circuit. Range 2.7~5.5 4.5 ~ 5.5 0~1 0~ 2.4 -40 ~ 85 -40 ~ 125 Unit V V A A oC oC Thermal Characteristics Symbol JA Parameter Junction-to-Ambient Resistance in Free Air Typical Value 235 Unit °C/W October, 20, 2011. Techcode Semiconductor Limited 4 www.techcodesemi.com 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.


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