UPD168117 Просмотр технического описания (PDF) - NEC => Renesas Technology

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UPD168117

7-CHANNEL H-BRIDGE DRIVER WITH A MICRO STEP FUNCTION SUPPORTING PULSE INPUT

NEC => Renesas Technology 

µ PD168117

5. FUNCTION OPERATION TABLE

5.1 Power Save Function

This IC can be placed in the power-save mode by making MODE1, MODE2, MODE3, and MODE4 high level.

This function allows holding of the excitation position when the stepping motor mode is selected and the operation to

be started from where the excitation position is held when the power-save mode is cleared. In the power-save mode,

the current consumption is reduced to 20 µA TYP. because the internal circuits other than UVLO are stopped.

The operation modes of ch1 to ch4 can be set by a combination of MODE1 to MODE4. For the combination of the

MODE pins, refer to Table 5−1. MODE Pin Truth Table.

Table 5−1. Mode Pin Truth Table

MODE1

MODE2

MODE3

L

L

L

L

L

H

L

H

L

L

H

H

L

H

H

H

L

L

H

L

L

H

L

H

H

L

H

H

H

L

H

H

L

H

H

H

H

H

H

Remark H: High level, L: Low level

MODE4

(/IN4B)

IN4B input

L

H

L

H

L

H

L

H

L

H

Operation Mode

ch1, ch2

ch3, ch4

2-phase excitation

General-purpose driving

1-2 phase excitation

(current limiting)

Micro step

2-phase excitation

2-phase excitation

1-2 phase excitation

1-2 phase excitation

2-phase excitation (current 2-phase excitation (current

limiting)

limiting)

1-2 phase excitation

1-2 phase excitation

(current limiting)

(current limiting)

2-phase excitation

Micro step

1-2 phase excitation

Micro step

Micro step

2-phase excitation

Micro step

1-2 phase excitation

Micro step

Micro step

Power save mode

Data Sheet S17310EJ2V0DS

7

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