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AM4951

BCD
Part Number AM4951
Manufacturer BCD
Description BTL Drive Single-phase Full-wave Fan Motor Driver
Published Aug 6, 2015
Detailed Description Data Sheet BTL Drive Single-phase Full-wave Fan Motor Driver AM4951/R/2 General Description The AM4951/R/2 series is ...
Datasheet PDF File AM4951 PDF File

AM4951
AM4951


Overview
Data Sheet BTL Drive Single-phase Full-wave Fan Motor Driver AM4951/R/2 General Description The AM4951/R/2 series is a single-phase BTL output fan motor driver designed by bipolar process.
This IC features high efficiency, silent operation and includes lock shutdown and automatic restart functions.
When the motor is under lock condition, the lock shutdown function turns off the output current.
When the lock condition is removed, the IC will restart automatically and allow DC fan to run.
It is applied for high reliability and low noise application, such as personal computers, notebook, car audio, CPU cooling systems and power supplies in consumer electronics systems.
The AM4951/R series is available in MSOP-8 (12V application only) or PSOP-8 (24V application only) package.
The AM4952 is available in MSOP-10 package.
Features • BTL Output Single-phase Full-wave Linear Drive (Gain Resistor=1k to 360kΩ, Gain=51dB) • Support Low-voltage Drive and Feature a Wide Usable Voltage Range (2.
2V to 24V) • Low Saturation Output (High Side and Low Side Saturation Voltage): VSAT_TOTAL=1.
2V (typical, IOUT=200mA) • Built-in Lock Protection and Automatic Restart Circuits • Built-in FG/RD Output • Built-in Hall Sensor Bias (AM4952 Only, VHB=1.
5V) • Thermal Protection Circuit • Small-sized, High Thermal Capacity Package • FG Output (AM4951), RD Output (AM4951R), FG and RD Output (AM4952) 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 BTL Drive Single-phase Full-wave Fan Motor Driver Pin Configuration Data Sheet AM4951/R/2 MM Package (MSOP-8) MP Package (PSOP-8) For AM4951/R 12V Application MM Package (MSOP-10) For AM4951/R 24V Application For AM4952 Figure 2.
Pin Configuration of AM4951/R/2 (Top View) Apr.
2012 Rev.
1.
4 BCD Semiconductor Manufacturing Lim...


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