The purpose of this application note is to describe

文件：4.31764 Mbytes Page：65 Pages

DMOS FULL-BRIDGE PWM MOTOR DRIVER

FEATURES ■ ±3 A, 50 V Output Rating ■ Low rDS(on) Outputs (270 mΩ, Typical) ■ Mixed, Fast, and Slow Current-Decay Modes ■ Synchronous Rectification for Low Power Dissipation ■ Internal UVLO and Thermal-Shutdown Circuitry ■ Crossover-Current Protection ■ Internal Oscillator for Digital PWM T

DMOS Full-Bridge PWM Motor Driver

Description Designed for pulse width modulated (PWM) current control of DC motors, the A3959 is capable of output currents to ±3 A and operating voltages to 50 V. Internal fixed off-time PWM current control timing circuitry can be adjusted via control inputs to operate in slow, fast, and mixed

DMOS FULL-BRIDGE PWM MOTOR DRIVER

FEATURES ■ ±3 A, 50 V Output Rating ■ Low rDS(on) Outputs (270 mΩ, Typical) ■ Mixed, Fast, and Slow Current-Decay Modes ■ Synchronous Rectification for Low Power Dissipation ■ Internal UVLO and Thermal-Shutdown Circuitry ■ Crossover-Current Protection ■ Internal Oscillator for Digital PWM T

DMOS FULL-BRIDGE PWM MOTOR DRIVER

FEATURES ■ ±3 A, 50 V Output Rating ■ Low rDS(on) Outputs (270 mΩ, Typical) ■ Mixed, Fast, and Slow Current-Decay Modes ■ Synchronous Rectification for Low Power Dissipation ■ Internal UVLO and Thermal-Shutdown Circuitry ■ Crossover-Current Protection ■ Internal Oscillator for Digital PWM T

DMOS Full-Bridge PWM Motor Driver

文件：541.59 Kbytes Page：11 Pages