UPD168112 查看數據表（PDF） - NEC => Renesas Technology

零件编号

产品描述 (功能)

比赛名单

UPD168112

SERIAL CONTROL H-BRIDGE DRIVER FOR CAMERA LENS DRIVING

NEC => Renesas Technology 

µPD168112

PIN FUNCTIONS

Pin Name

Detailed Pin Function

RESET

Initializes the internal circuitry of the IC. The output goes into a Hi-Z state and the registers are initialized. When a

stepper motor is driven, driving is started with phase A at +100% and phase B at 0%.

CLK

CLKB

LATCH

SCLK

SDATA

VD

COSC

OSC

RSEN

Inputs CLK from an external source for generating CLK that serves as a reference of the duty factor of a DC motor

or pulse cycle of a stepper motor.

Outputs the signal input from CLK via the oscillator.

Command input enable signal. Equivalent to chip select signal from a microcontroller.

CLK signal for inputting a command. When data is transmitted, this signal is transmitted in synchronization with the

data. The contents of SDATA are read as data at the rising edge of SCLK.

Command data input signal. Initialization is performed at addresses 0 and 1, and the contents of addresses 2 to 5

specify how the motor is to be driven.

Pin that inputs a sync signal. The driver that drives a stepper motor outputs signals after wait time (set by address

1) has elapsed after VD has risen. The output timing is always constant if the VD signal is periodically input, even if

the timing of serial input changes. The driver starts outputting signals at the falling edge of the LATCH signal, not in

synchronization with VD, when a DC motor or a constant current is driven.

Pin that connects a capacitor to a triangular wave generator that drives a constant current. Connect a capacitor of

100 to 330 pF between this pin and GND.

Pin that connects a capacitor to a triangular wave generator that drives a stepper motor or a DC motor. Connect a

capacitor of 100 to 330 pF between this pin and GND.

Connects a detector resistor to the constant-current detector.

Remark Hi-Z: High impedance

4

Data Sheet S15866EJ1V0DS

Share Link: