PT8A2767x DC Motor Controller Features Description z Operation Range: 1.6~5.5V The PT8A2767x is a mixed signal CMOS LSI chip z 20A Maximum Standby Supply Current designed as a simple power switch circuit for shaver, z Thermal and Short-Circuit Protection toothbrush and other electrical devices. It can drive z Less than 100m High-side MOSFET motor directly and detect battery lacking. ON/OFF z Filter for key input button control work status, and LED1, LED2 indicates z 1.5A current driver work status. It has lock function. z Protection for over temperature Applications z Protection for over current z Shaver z Battery under-voltage indicate z Toothbrush z Battery over discharge protect z Lock function z Low cost 8-pin SOIC and 5-pin SOT23 package Pin Configuration PT8A2767A/B/C/D/E/F/G/H PT8A2767I/J Pin Description PT8A2767A/B/C/D/E/F/G/H Pin Name Pin No. Type Descriptions OUT 1 O Output to drive motor ENB 2 I Enable input, active low. LED1 3 O LED1 indicator output. LED2 4 O LED2 indicator output. VCC 5 Power Power supply. OCP 6 I Over current protection input Key input, active low this pin can also adjust the protection voltage of battery ON/OFF 7 I discharge. GND 8 Power Ground. PT8A2767I/J Pin Name Pin No. Type Descriptions ENB 1 I Enable input, active low. Key input, active low this pin can also adjust the protection voltage of battery ON/OFF 2 I discharge. OUT 3 O Output to drive motor GND 4 Power Ground. VCC 5 Power Power supply. 12-07-0006 PT0394-2 07/06/12 1 PT8A2767x DC Motor Controller Block Diagram Maximum Ratings Note: o o Storage Temperature ...................................................................................... -40 C to +125 C Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the Supply Voltage to Ground Potential (Input & V Only) ........................ -0.5V to + 5.5V CC device. This is a stress rating only and functional Supply Voltage to Ground Potential (Outputs Only) ................................ -0.5V to + 5.5V operation of the device at these or any other condi- DC Input Voltage ............................................................................................... -0.5V to + 5.5V tions above those indicated in the operational sec- DC Output Current ........................................................................... 5A tions of this specification is not implied. Exposure Power Dissipation ...................................................................................................................... 1W to absolute maximum rating conditions for extended periods may affect reliability. Recommended operation conditions Symbol Parameter Min Typ Max Unit V Operating Voltage 1.6 2.4 5.5 V CC V H Input Voltage 0.7V - - V IH CC V L Input Voltage - - 0.3 V V IL CC T Operating temperature 0 25 85 C A 12-07-0006 PT0394-2 07/06/12 2