BA6438 반도체 회로 부품 판매점
3-phase motor driver
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 ROHM Semiconductor |
Motor driver ICs
3-phase motor driver
BA6438S
BA6438S
The BA6438S is a 3-phase, full-wave, pseudo-linear motor driver suited for VCR capstan motors. The IC has a torque
ripple cancellation circuit to reduce wow and flutter, and an output transistor saturation prevention circuit that provides
superb motor control over a wide range of current. The built-in motor power switching regulator allows applications with
low power consumption
!Applications
3-phase VCR capstan motors
!Features
1) 3-phase, full-wave, pseudo-linear drive system.
2) Torque ripple cancellation circuit.
3) Reversal brake based on the detection of motor
direction.
4) Output transistor (high-and low-sides) saturation
prevention circuit
5) Motor power switching regulator with oscillation circuit.
6) Output-to-GND short-circuit detection.
7) Available in SDIP 24-pin power package (with radiation
fins).
!Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Applied voltage
VCC
7
Applied voltage
Power dissipation
VM
Pd
24
2000∗1
Operating temperature
Topr
−10 ∼ +75
Storage temperature
Tstg
−40 ∼ +150
Allowable output current
IOpeak
1.7∗2
∗1 Reduced by 16mW for each increase in Ta of 1°C over 25°C.
∗2 Should not exceed the ASO value.
Unit
V
V
mW
°C
°C
A
!Recommended operating conditions (Ta = 25°C)
Parameter
Operating power supply voltage
Operating power supply voltage
Symbol
VCC
VM
Min.
4
3
Typ.
5
12
Max.
6
23
Unit
V
V
Motor driver ICs
!Block diagram
CONTROL
SIGNAL
SIGNAL VCC
MOTOR
DIRECTION
DET
11
ED / S
MOTOR
DIRECTION
SETTING
VCC 19
VM 24
H1+ Hall
Hall 10
Amp.
A1 23
9
HH21+−
Hall 8
A2 3
7
H2−
H3+
Hall 6
A3
1
5
H3−
AGC
ATC
2
4
PCH
TSD
VCC
EC
17
16
ECR
SHORT
CIRCUIT
DET.
SWITCHING
REGULATOR
13 REG
14 VS
RIPPLE
CANCELLATION
12
GND
TL
CS
20 22
OUTPUT
SATURATION
PCV PCI
18 21
VCC
OSC
OUTPUT
SATURATION
OSC
15
TORQUE
COMMAND
BA6438S
MOTOR VCC
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제조업체: ROHM Semiconductor
( rohm )
BA6438 driver
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[ BA6438.PDF ]
[ BA6438 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
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