AiT Semiconductor A4776A
The A4776A is available in SOT25 Package ⚫ The A4776A is a USB output protection chip with ⚫ adjustable current limit threshold for 5V applications. The device integrates over current protection, short ⚫ protection, over temperature protection, under voltage lock-out protection functions, etc. It can limit ⚫ output current when short event happens or heavy ⚫ capacitive load is applied to the USB output, so as to protect the supply voltage source from collapsing.DESCRIPTION
FEATURES
Low on resistance: 70mΩ Current-limit threshold adjustable by external resistor Current limit accuracy over full operating conditions:±15% Output short fast response and protection No parasitic substrate diode, and reverse current blocking when switch is off. ORDERING INFORMATION Package Type Part Number SOT-25 A4776AE5R E5 SPQ: 3,000pcs/Reel A4776AE5VR Note V: Halogen free Package R: Tape & Reel AiT provides all RoHS products TYPICAL APPLICATION APPLICATION● USB hub
● USB periphery
● Notebook and tablet
● Charger and adapter REV1.1 - NOV 2017 RELEASED – JUN 2022 UPDATED - -1- AiT Semiconductor Inc. A4776A SWITCH 70mΩ 5V USB HIGH SIDE CURRENT LIMIT LOAD SWITCH PIN
DESCRIPTION
Pin # 1 2 3 4 5 Symbol VOUT GND RSET EN VIN SOT25, E5 Top View Function Output, Connected To USB Port VBUS. Chip Ground. Current Limit Threshold Setting Pin, External Resistance To Ground To Set The Current Limit Threshold. Ioc=60K/RSET Chip Enable Pin, Active High. Power Supply Pin. REV1.1 - NOV 2017 RELEASED – JUN 2022 UPDATED - -2- AiT Semiconductor Inc.