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RT9719

Richtek Technology Corporation
Part Number RT9719
Manufacturer Richtek Technology Corporation
Description Charging System Safety Device
Published Mar 31, 2015
Detailed Description RT9719 Charging System Safety Device General Description The RT9719 is an integrated circuit (IC) designed to replace ...
Datasheet PDF File RT9719 PDF File

RT9719
RT9719

Overview
RT9719 Charging System Safety Device General Description The RT9719 is an integrated circuit (IC) designed to replace passive device in charging system with extra protection function.
It is optimized to protect low voltage system from up to 28V high voltage input.
The IC monitors the input voltage to make sure all parameters are operating in normal range.
It also monitors its own temperature and turn off the MOSFET when the chip temperature exceeds 140°C.
When the input voltage exceeds the threshold, the IC turns off the power MOSFET within 1us to remove the power before any damage occurs.
User can monitor the adapter input voltage from CHRIN pin which has 50mA current capability.
The gate of the P-MOSFET will be controlled by the external charging controller from GATEDRV pin if all parameters are operating in normal range.
The RT9719 is available in SOT-23-6 and WDFN-8L 2x2 tiny packages to achieve best solution for PCB space and total BOM cost saving considerations.
Features z No External Blocking Diode Requiring z Overvoltage Turn Off Time of Less Than 1μs z High Accuracy Protection Thresholds z Over Temperature Protection z High Immunity of False Triggering Under Transients z Thermal Enhanced SOT-23-6 and 8-Lead WDFN Packages z RoHS Compliant and Halogen Free Application z Cellular Phones z Digital Cameras z PDAs and Smart Phones z Portable Instruments Pin Configurations (TOP VIEW) Ordering Information RT9719 Package Type E : SOT-23-6 QW : WDFN-8L 2x2 (W-Type) Lead Plating System G : Green (Halogen Free and Pb Free) Note : OVP Default : 6.
25V A : 7.
20V Richtek products are : ` RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
ACIN 1 ACIN 2 ACIN 3 GND 4 GND 8 ISENSE 7 ISENSE 6 CHRIN 9 5 GATEDRV WDFN-8L 2x2 GATEDRV CHRIN ISENSE 654 23 SOT-23-6 NC GND ACIN Marking Information For marking information, contact our sales representative directly or through a Ri...


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