DatasheetsPDF.com

AM4964

BCD
Part Number AM4964
Manufacturer BCD
Description SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER
Published Aug 6, 2015
Detailed Description NEW PRODUCT A Product Line of Diodes Incorporated AM4964 SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER Description P...
Datasheet PDF File AM4964 PDF File

AM4964
AM4964

Overview
NEW PRODUCT A Product Line of Diodes Incorporated AM4964 SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER Description Pin Assignments The AM4964 is highly integrated feature rich single phase Brushless Direct Current (BLDC) full wave motor driver with combined PWM and temperature speed control function for fans, blowers and extractors.
For system flexibility, the motor speed can be controlled by an external PWM signal and temperature sensed by Thermal resister at the same time.
Based on external input PWM and temperature signals, the AM4964 adjusts the output PWM duty cycle.
If the input PWM duty is constant, the output PWM duty varies with temperature sensed by Thermal resister sensor between the low and high temperature corners.
If the temperature signal is constant, the output duty varies with the external input PWM duty.
The low and high temperature corners and the output PWM duty gap between these temperature corners are adjustable To help protect the motor coil, the AM4964 provides a rotor lock protection which shuts down the output if rotor lock is detected.
The device automatically re-starts when the rotor lock is removed.
AM4964 provides a tachometer output Frequency Generator (FG).
The FG output is the magnetic change frequency.
The AM4964 is available in TSSOP-20EP package.
NC 1 PGND 2 OUT2 3 VCC 4 VMIN 5 PWM 6 CF 7 FG 8 RT 9 TL 10 EXPOSED PAD (Top View) TSSOP-20EP 20 NC 19 OUT1 18 TA 17 TH 16 SGND 15 CT 14 RADJ 13 IN12 HB 11 IN+ Features  Flexible Speed Control Options  Combined PWM+Thermistor Speed Control  PWM Speed Control  DC Voltage Speed Control  Adjustable Low and High Temperature Corners  Full Speed When Thermal Resistor is Shorted  Adjustable Output Duty Gap between High and Low Temperature when 100% PWM Input  Built-in oscillator – No external capacitor  Built-in Minimal Speed Setup Circuit  Alpha Slope Adjustable  Rotation Speed Indicator (FG)  Built-in Temperature Control Circuit  Built-in Thermal Shutdown Circuit  Lock P...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)