AM4961GSTR-G1 Diodes Incorporated

Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4961 General Description Features The AM4961 is a full wave driver IC with PWM con- Built-in Hall Bias Circuit trol function. It is used for single phase motor and is Built-in PWM Speed Control Circuit capable of speed control by changing output duty Built-in Minimal Speed Setup Circuit cycle. Rotation Speed Indication (FG) Rotation or Lock State Indication (RD) The AM4961 is available in SSOP-16 and HTSSOP- Built-in Thermal Shutdown Circuit 14 packages. Lock Protection Output Current Limit Application CPU Cooler Fan in PC Brushless DC Motor Driver HTSSOP-14 SSOP-16 Figure 1. Package Types of AM4961 May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited 1 Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4961 Pin Configuration GS Package (SSOP-16) PGND 16 OUT2 1 NC 2 15 OUT1 VCC 3 14 GND CT VMIN 4 13 VPWM 5 12 VREF HIN- 6 11 COSC 10 FG 7 HB 9 8 HIN+ RD GH Package (HTSSOP-14) PGND PGND OUT2 1 14 OUT1 13 VCC 2 GND 12 VMIN 3 CT VPWM 4 11 VREF 5 HIN- COSC 10 6 9 HB FG 8 7 HIN+ RD Figure 2. Pin Configuration of AM4961 (Top View) May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited 2