UPD168111 Ver la hoja de datos (PDF) - NEC => Renesas Technology

Número de pieza

componentes Descripción

Fabricante

UPD168111

MICROSTEP DRIVER FOR DRIVING CAMERA LENS

NEC => Renesas Technology 

EXAMPLE OF STANDARD CONNECTION

µPD168111

CPU

OSCIN

SCLK SDATA LATCH

RESETB

VDD

VM1

3.3 V

VM2

1/N

SERIAL-PARALLEL DECODER

PULSE

EXTOUT

GENERATOR SELECTOR

1000 pF

Note 2

5V

COSC

330pF

LGND

FB1

2 kΩ

Note 1

Current

Sense1

OSC

VM

H BRIDGE

ch1

EVR1 EVR2

CURRENT SET

FILTER FILTER

Internal Block

VM

H BRIDGE

ch2

Current

Sense2

PGND

OUT1A OUT1B FIL1

EN

FIL2 OUT2A OUT2B

1000 pF

1000 pF

Note 3 from CPU Note 3

PGND

M

EXT0

EXT1

MOB

VDD

100 kΩ

FB2

2 kΩ

Note 1

1000 pF

Note 2

This circuit diagram is shown as an example and is not intended for mass production.

Connect a bypass capacitor between the power supply and GND pins for stabilization.

Notes 1. Adjust the value of the external resistor according to the output current. The relationship between the

output current and external resistance is as follows.

Output current IOUT ≅ EVRMAX ÷ FB x 1000

2. It is recommended to connect a capacitor to the FB pin for stabilization to suppress the electronic noise

superimposed on the pin.

3. The capacitor connected to the FIL pin is used to suppress the voltage noise for stabilization. Adjust

the capacitance of the capacitor to effectively suppress the noise.

4

Data Sheet S15865EJ1V0DS

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