AM4951RMMTR-G1 Diodes Incorporated

Data Sheet BTL Drive Single-phase Full-wave Fan Motor Driver AM4951/R/2 General Description Features The AM4951/R/2 series is a single-phase BTL output BTL Output Single-phase Full-wave Linear fan motor driver designed by bipolar process. This IC Drive (Gain Resistor=1k to 360k, Gain=51dB) features high efficiency, silent operation and includes Support Low-voltage Drive and Feature a Wide lock shutdown and automatic restart functions. When Usable Voltage Range (2.2V to 24V) the motor is under lock condition, the lock Low Saturation Output (High Side and Low Side shutdown function turns off the output current. When Saturation Voltage): V =1.2V (typical, SAT TOTAL the lock condition is removed, the IC will I =200mA) OUT restart automatically and allow DC fan to run. It is Built-in Lock Protection and Automatic Restart applied for high reliability and low noise application, Circuits such as personal computers, notebook, car audio, Built-in FG/RD Output CPU cooling systems and power supplies in Built-in Hall Sensor Bias (AM4952 Only, consumer electronics systems. V =1.5V) HB Thermal Protection Circuit The AM4951/R series is available in MSOP-8 (12V Small-sized, High Thermal Capacity Package application only) or PSOP-8 (24V application only) FG Output (AM4951), RD Output (AM4951R), package. The AM4952 is available in MSOP-10 FG and RD Output (AM4952) package. Applications Notebook, Personal Computers Power Supplies in Consumer Electronics, Car Audio and Office Peripherals CPU Cooling Systems MSOP-8 PSOP-8 MSOP-10 Figure 1. Package Types of AM4951/R/2 Apr. 2012 Rev. 1. 4 BCD Semiconductor Manufacturing Limited 1 Data Sheet BTL Drive Single-phase Full-wave Fan Motor Driver AM4951/R/2 Pin Configuration MM Package MP Package (MSOP-8) (PSOP-8) For AM4951/R 12V Application For AM4951/R 24V Application MM Package (MSOP-10) For AM4952 Figure 2. Pin Configuration of AM4951/R/2 (Top View) Apr. 2012 Rev. 1. 4 BCD Semiconductor Manufacturing Limited 2