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AM4962

BCD
Part Number AM4962
Manufacturer BCD
Description SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER
Published Aug 6, 2015
Detailed Description Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 General Description The AM4962 is a full wave driver...
Datasheet PDF File AM4962 PDF File

AM4962
AM4962

Overview
Data Sheet SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962 General Description The AM4962 is a full wave driver IC with direct PWM control function.
It is used for single phase motor and is capable of speed control by PWM pulse.
The AM4962 is available in HTSSOP-14 and SSOP-16 packages.
Features • The Motor Speed is Controlled by PWM Pulse Directly • Built-in Triangle Wave Circuit Without Extra Oscillation Capacitor • Built-in Hall Bias Circuit • Built-in Minimal Speed Setup Circuit • Slope K* Adjustable • Rotation Speed Indication (FG) • Rotation or Lock State Indication (RD) • Built-in Thermal Shutdown Circuit • Lock Protection and Auto-restart • Output Current Limit * Slope K is the slope of output PWM duty vs.
input PWM duty Applications • CPU Cooler Fan in PC • Brushless DC Motor Driver HTSSOP-14 SSOP-16 Figure 1.
Package Types of AM4962 Apr.
2011 Rev.
1.
2 BCD Semiconductor Manufacturing Limited 1 SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER Pin Configuration GH Package (HTSSOP-14) Data Sheet AM4962 PGND OUT2 VCC VMIN PWM CF FG RD 1 2 3 4 5 6 7 PGND 14 OUT1 13 GND 12 CT 11 RADJ 10 HIN9 HB 8 HIN+ GS Package (SSOP-16) OUT2 NC VCC VMIN PWM CF FG RD 1 2 3 4 5 6 7 8 16 PGND 15 OUT1 14 GND 13 CT 12 RADJ 11 HIN10 HB 9 HIN+ Figure 2.
Pin Configuration of AM4962 (Top View) Apr.
2011 Rev.
1.
2 BCD Semiconductor Manufacturing Limited 2 SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER Pin Description Data Sheet AM4962 Pin Number Pin Name HTSSOP-14 SSOP-16 Function 1 1 OUT2 Driver output 2 2 NC No connection 2 3 VCC Power supply 3 4 VMIN Minimum duty setting 4 5 PWM PWM pulse Input 5 6 CF PWM filter capacitor 6 7 FG Rotation speed indicator 7 8 RD Rotation/lock state indicator 8 9 HIN+ Hall sensor input + 9 10 HB Hall sensor bias regulator 10 11 HIN- Hall sensor input - 11 12 RADJ Slope K adjustable terminal 12 13 CT Lock and rotation setting capacitor terminal 13 14 GND Ground for control circuit 14 15 OUT1 Driver output 1...


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