A89505中文資料ALLEGRO數(shù)據(jù)手冊PDF規(guī)格書

FEATURES AND BENEFITS

? Standard IN1/IN2 control logic

? Overcurrent indication

? Adjustable off-time and blank-time

? Adjustable current limit

? Adjustable gate drive

? Synchronous rectification

? Internal UVLO

? Crossover-current protection

? MOSFET VDS protection

? Voltage output proportional to load current

? AEC-Q100 qualified

DESCRIPTION

Designed for pulse-width-modulated (PWM) control of DC

motors, the A89505 is capable of 50 V operation and provides

gate drive for an all N-channel external MOSFET bridge.

Input terminals are provided for use in controlling the speed and

direction of a DC motor with externally applied PWM control

signals. Internal synchronous rectification control circuitry is

provided to lower power dissipation during PWM operation.

Internal circuit protection includes VDS protection, thermal

shutdown with hysteresis, undervoltage monitoring of VBB,

and crossover-current protection.

The A89505 is supplied in a low-profile 4 mm × 4 mm, 20-contact

QFN package (suffix “ES”) and a 20-lead eTSSOP (suffix

“LP”), both with exposed thermal pad