bd65491fv ROHM Co. Ltd., bd65491fv Datasheet - Page 6

• Manufacturer Part Number: bd65491fv
• Description: 1-2ch Lens Drivers For Slrs
• Manufacturer: ROHM Co. Ltd.

BD65491FV,BD65492MUV
© 2011 ROHM Co., Ltd. All rights reserved.
www.rohm.com
Always keep N.C. pins open.
○BD65492MUV Pin Function
Drive mode selection
(p.7/9)
H : EN/IN
L : IN/IN
Motor control input
(p.7/9)
Motor control input
(p.6/8)
Fig.18 BD65492MUV Pin Arrangement (Top View)
Each of the same named terminals (VM, PGND, OUT1A, OUT1B,
OUT2A, OUT2B) must be connected together on the PCB (Printed
Circuit Board).
OUT1B
OUT1B
OUT2B
OUT2B
Power-saving (p.7/9)
PGND 1
PGND
H : Active
L : Standby
OUT2A
OUT1A
2
3
4
5
6
Always keep open
(p.7/9)
24
7
PWM 19
IN1A
IN1B 18
IN2A
IN2B
OUT1A
OUT2A
PS
PS
75kΩ
23
8
11
17
14
12
VM
Bypass filter Capacitor for
power supply input (p.7/9)
22
9
VM
300kΩ
13
Power Save
N.C.
VM
10
21
VM
Logic
Logic
PS
N.C.
11
20
20
IN2B
PWM
N.C.
Fig.19 BD65492MUV I/O Circuit Diagram
12
19
Fig.17 BD65492MUV Application Circuit
18
17
16
15
14
13
TSD
1～100uF
Level Shift
Pre Driver
Level Shift
Pre Driver
IN1B
IN1A
GND
VCC
IN2A
N.C.
&
IN1A, IN1B, IN2A, IN2B, PWM
&
&
UVLO
15
16
VCC
GND
100kΩ
6/9
10kΩ
BandGap
No. Pin Name
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
H bridge
H bridge
Full ON
Full ON
OUT1B
OUT1B
OUT2B
OUT2B
OUT2A
OUT2A
OUT1A
OUT1A
PGND
PGND
PWM
IN2B
IN2A
GND
IN1A
IN1B
N.C.
VCC
N.C.
VM
VM
VM
VM
PS
21
23
9
2
7
4
1
10
22
24
3
8
5
6
Motor ground pin
H-bridge output pin ch.1 B
H-bridge output pin ch.1 B
H-bridge output pin ch.2 B
H-bridge output pin ch.2 B
Motor ground pin
H-bridge output pin ch.2 A
H-bridge output pin ch.2 A
Motor power supply pin
Motor power supply pin
Power-saving pin
Control input pin ch.2 B
Control input pin ch.2 A
Power supply pin
Ground pin
Control input pin ch.1 A
Control input pin ch.1 B
Drive mode selection pin
Motor power supply pin
Motor power supply pin
H-bridge output pin ch.1 A
H-bridge output pin ch.1 A
OUT1A
OUT1B
OUT2A
OUT2B
PGND
VM
VM
VM, PGND, OUTxA, OUTxB (x=1,2)
Bypass filter Capacitor for
power supply input (p.7/9)
VM pin groups 9,10 and 21,22 are
recommended to be short-circuited on
the PCB pattern. If cannot, check into
transitional
application circuit including two motors.
Though they are internally connected
through low impedance materials, the
possibility of causing some unexpected
malfunctions is incontrovertible.
1～100uF
Function
Technical Note
characteristics
2011.02 - Rev.A
OUT1A
OUT2B
OUT2A
OUT1B
VM
PGND
of
total