BA6438 Ver la hoja de datos (PDF) - ROHM Semiconductor

Número de pieza

componentes Descripción

Lista de partido

BA6438

3-phase motor driver

ROHM Semiconductor 

Motor driver ICs

!Pin descriptions

Pin No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

Pin name

A3

ATC

A2

PCH

H3 −

H3 +

H2 −

H2 +

H1 −

H1+

ED / S

GND

REG

VS

OSC

ECR

EC

PCV

VCC

TL

PCI

CS

A1

VM

Function

Motor output

Driver ground

Motor output

Hall amplifier AGC phase compensation

Hall signal input

Hall signal input

Hall signal input

Hall signal input

Hall signal input

Hall signal input

Forward when LOW; stop when MEDIUM; reverse when HIGH

Signal ground

Switching regulator output (sink output)

High-side saturation detection output

Oscillator capacitor connection

Torque control reference voltage input

Torque control signal input

Phase compensation for preventing driver high-side saturation

Signal power supply

Torque limiter

Phase compensation for preventing driver low-side saturation

Current sensing input

Motor output

Motor power supply

BA6438S

!Electrical characteristics (unless otherwise noted, Ta = 25°C, VCC = 5V, VM = 12V)

Parameter

Symbol

Torque control input / output gain

Gio

Ripple cancel ratio

Output high level voltage

Output low level voltage

Oscillator frequency

Saturation detection output gain

Regulator current capacity

Not designed for radiation resistance.

VRCC

VOH

VOL

fOSC

Gus

IREGO

Min.

0.25

4.6

1.1

0.95

100

5.0

30

Typ.

0.31

6.4

1.5

1.3

135

6.5

−

Max.

0.36

7.2

1.9

1.65

160

8.0

−

Unit

Conditions

−

EC = 2.2→2.1V,

Input = L, L, H

%

Input = L, L, H→L, M, H

V

IO = 0.8A

V

IO = 0.8A

kHz C = 470pF

−

−

mA

VO = 5V

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