6-Channel Motor Driver IC for DSC, DVC and Surveillance Cameras

R2A30440NP

R2A30440NP

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R19DS0063EJ0100 Rev.1.00

May 10, 2012

R19DS0063EJ0100

Rev.1.00

May 10, 2012

Datasheet

3

5

2CH

D class amp

H-bridge

7

9

6

1CH

D class amp

H-bridge

STM1

8

32

34

4CH

D class amp

H-bridge

36

38

35

3CH

D class amp

H-bridge

STM2

33

VCC

VCC

power

supply

2.7~3.6V

BIAS

Low voltage

detection

TSD

VREF(1.25V)

22

24

5CH

CC/FS

H-bridge

25

COIL

23

14

16

6CH

CC/FS

H-bridge

17

COIL

15

10

DGND

VM

Power

supply

DAC

Serial Control Logic

5MHz

STEP

STEP

U-STEP

Circuit

U-STEP

Circuit

COIL

COIL

Exclusive

Control 1

COIL

FLL

Controller

Comp

DAC

0-2V

4bit

CP

MCLK

1MHz

CP

Latch

MCU

U-STEP

FLL

Reference clock

1MHz~27MHz

Control Signal

(3,4,5,6CH)

Serial

Control Signal

(3 lines)

MOB/EXT

Reset

H: Active

L: Standby

FS : Full-swing

CV : Average Constant-Voltage

CC : Constant-Current

Note)

 The terminals (lead) are on the package underside.

 At the Package central underside is a heat sink PAD.

Heat dissipation shield (and etc.) connection at DGND is

recommended.

 Each VM pins respectively are not connected to each

other internally. Please connect them externally.

Frequency

Divider

Application

Motor driver for digital still cameras

Block diagram and example of application circuit

Overview

The R2A30440NP is a semiconductor integrated circuit that incorporates

driver circuits suitable for motors in digital cameras.

The terminal arrangements are basically identical to that of R2A30423NP.

Features

 CMOS process adoption and 1ch-4ch using D class amplifier to achieve low

power consumption.

 A small 40-pin QFN package 5mm x 5mm, t=0.80mm (max) is used.

 Built-in autonomous drive circuit controlled by serial settings (self propelled

control)

 1ch/2ch and 3ch/4ch are capable of 2-2 phase stepper drive, 1-2 phase

(100%) stepper drive, 1-2 phase (70%) stepper drive and 256/512/1024

resolution micro-steps.

 3ch/4ch is capable of constant voltage drive.

 5ch is capable of constant current drive and FLL control.

 6ch is capable of constant current drive.

 By using exclusive control mode on 5ch and 6ch, it resembles 7ch drive.

 Built-in 3 PI drivers channels

 Built-in 2 comparators and 1 Schmitt buffer.

 Built-in low-voltage malfunction prevention and thermal shutdown circuit.

 Power supplies VCC and VM are internally isolated and include a function to

prevent reverse current between the power supplies.

27

26

13

28

20

2

40

21

31

12

11

1

19

29

30

18

39

4

37

CPIN1

CPIN2

STM3

Comp

DAC

Package:40QFN

[5x5mm t=0.8mm(Max)]

Pin Layout (Top View)

1

10

11

20

21

30

31

40

OSCIN

IN5

IN6

VM6

OUT6A

PGND6(RNF6)

OUT6B

RESET

VCC

PI1

OUT4B

PGND34

OUT4A

VM34

OUT3B

CPIN2

OUT3A

Recommended operating conditions

Power-supply voltage range

 VCC: 2.7V~3.6V

VM: 2.7V~5.5V

Rated power-supply voltage

 VCC: 3.3V

VM: 5.0V