UPD168111AMA-6A5 查看數據表（PDF） - NEC => Renesas Technology

零件编号

产品描述 (功能)

生产厂家

UPD168111AMA-6A5

MICROSTEP DRIVER FOR DRIVING CAMERA LENS

NEC => Renesas Technology 

µ PD168111A

Reset function (RESET pin)

To initialize the internal registers of this IC, be sure to perform a reset operation after power application.

The registers are initialized and all the internal data are cleared to “0” when the RESETB pin is “L”.

The internal circuitry is stopped. The current consumption is reduced to 1 µA MAX. by stopping the external CLK

input. The output goes into a Hi-Z state.

When the RESETB pin is “H”, excitation can be started from the initial excitation position with the current of ch1 at

+100% and the current of ch 2 at 0% (one-phase excitation position).

To perform two-phase excitation driving, the initial excitation position is in the status where the currents of ch1 and

ch2 are +100% after the command has been set. After the RESETB pin has gone “H”, the MOB pin outputs “L” until

the pulse is output.

Output enable function (EN pin)

This IC generates the pulse output timing by setting a start point wait and start point excitation wait, and outputs

pulses.

The output enable function (EN pin) allows an external source to forcibly stop the pulse output.

When the EN pin goes “L”, the output is forcibly made to go into a Hi-Z state. Then the device enters the standby

mode described below.

Be sure to input a command while the EN pin is “H”.

If pulse output continues when the EN pin is “L”, pulse output is started from the excitation status when the EN pin

goes “H” once and then “L” again.

Standby function

The µPD168111A can be set in the standby mode by making the EN pin “L”.

In this mode, as many internal circuits as possible are stopped, so that the self current consumption can be

reduced.

By stopping input of the external CLK, the current consumption can be reduced to 30 µA MAX. It is 300 µA MAX.

when the external CLK is input.

In the standby mode, the contents of the internal registers and motor excitation position information are retained.

After the standby mode is released, therefore, driving the motor can be started without having to perform an

initialization operation.

To release the standby mode, input the external CLK and make the EN pin “H”.

10

Data Sheet D16536EJ1V0DS

Share Link: