stmc109 高端电流检测芯片
1页1、Application Circuit STMC109 SOT23109 DC Motor Control Programmable Current Source Level Translating Over Current Monitor SOT23 Package 109 SOT23 packages. The STMC109 is a high side current sense monitor. STMC109 1 DESCRIPTION Using this device eliminates the need to disrupt the ground plane when sensing a load current. It takes a high side voltage developed across a current shunt resistor and translates it into a proportional output current. A user defined output resistor scales the output curr
2、ent into a ground-referenced voltage. Thewideinputvoltagerangeof20Vdowntoaslowas 2.5V make it suitable for a range of applications. A minimum operating current of just 4A, combined with its SOT23 package make it a unique solution, suitable for portable battery equipment. FEATURES Low cost, accurate high-side current sensing. Output voltage scaling. Up to 2.5V sense voltage. 2.5V 20V supply range. 4A quiescent current. 1% typical accuracy. APPLICATIONS Battery Chargers Smart Battery Packs Power Management HIGH-SIDE CURRENT MONITOR VinTo Load Vout Rsense Rout ORDERING INFORMATION PART NUMBERPACKAGEPARTMARKING Top View Iout Load Vin 3 2 1 CONNECTION DIAGRAMS ABSOLUTE MAXIMUM RATINGS Voltage on any pin-0.6V to 20V (relative to Iout) Continuous output current25mA Continuous sense voltageVin+ 0.5V Vsense Vin 5V Operating Temperature-40 to 85C Storage Temperature-55 to 125C Package Power Dissipation(TA= 25C) SOT23450mW
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