MONOLITHIC QUAD H BRIDGE DRIVER CIRCUIT

 

 

 

DESCRIPTION

The µPD16835A is a monolithic quad H bridge driver IC that employs a CMOS control circuit and a MOS FET

output circuit. Because it uses MOS FETs in its output stage, this driver IC consumes less power than conventional

driver ICs that use bipolar transistors.

Because the µPD16835A controls a motor by inputting serial data, its package has been shrunk and the number

of pins reduced. As a result, the performance of the application set can be improved and the size of the set has been

reduced.

The µPD16835A employs a current-controlled 64-step micro step driving method that drives stepper motor with

low vibration.

The µPD16835A is housed in a 38-pin plastic shrink SOP to contribute to the miniaturization of the application set.

The µPD16835A can simultaneously drive two stepper motors and is ideal for the mechanisms of camcorders.

 

 

 

FEATURES

Four H bridge circuits employing power MOS FETs

Current-controlled 64-step micro step driving

Motor control by serial data (8 bytes x 8 bits) (original oscillation: 4-MHz input)

Data is input with the LSB first.

EVR reference setting voltage: 100 to 250 mV (@VREF = 250 mV) ... 4-bit data input (10-mV step)

Chopping frequency: 32 to 124 kHz ... 5-bit data input (4-kHz step)

Original oscillation division or internal oscillation selectable

Number of pulses in 1 VD: 0 to 252 pulses ... 6 bits + 2-bit data input (4 pulses/step)

Step cycle: 0.25 to 8191.75 µs ... 15-bit data input (0.25- µs step)

3-V power supply. Minimum operating voltage: 2.7 V (MIN.)

Low current consumption IDD: 3.0 mA (MAX.), IDD (RESET): 100 µA (MAX.), IMO(RESET): 1.0 µA (MAX.)

38-pin plastic shrink SOP (7.62 mm (300))

 

 

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