bd6757kn ROHM Co. Ltd., bd6757kn Datasheet - Page 8

• Manufacturer Part Number: bd6757kn
• Description: 7ch System Lens Drivers For Digital Still Cameras / Single-lens Reflex Cameras
• Manufacturer: ROHM Co. Ltd.

© 2009 ROHM Co., Ltd. All rights reserved.
BD6757KN, BD6889GU
www.rohm.com
REG Switch (p.10/16)
H : REG output ON
L : REG output OFF
transistor (p.10/16)
Selector for Digital
interrupter (p.10/16)
Motor control input
(p.9/16)
Motor control input
(p.9/16)
Power supply for photo
Motor control input
(p.9/16)
Motor control input
(p.9/16)
detection, is reshaped and output to SO1x.
(p.10/16)
The sensor signal SI1, for lens position
Power-saving (p.9/16)
H : Active
L : Standby
DSEL1
DSEL2
DSW
IN1A
IN1B
IN2A
IN2B
IN3A
IN3B
IN4A
IN4B
IN5A
IN5B
IN6A
IN6B
IN7A C4
IN7B D4
REG B7
SW C2
PS
G3
C7
E3
E4
F3
F6
F7
E6
E5
C6
D5
B3
B4
E2
C3
B2
GND
SW
G2
VCC
F4
SW
DTR Selector
Power Save
SI1
Fig.13 BD6889GU Application Circuit Diagram
Logic12
Logic12
Logic34
Logic56
Logic7
Bypass filter Capacitor for
power supply input. (p.14/16)
VCC
REG
SO1N
G5
VCC
VCC
detection, is reshaped and output to SO2x.
(p.10/16)
G4
The sensor signal SI2, for lens position
SO1P
TSD
SW
1～100uF
Level Shift
Level Shift
Level Shift
Level Shift
Pre Driver
Pre Driver
Pre Driver
Pre Driver
Digital
transistor SW
VCC
&
&
&
&
&
F5
SW
UVLO
SI2
8/15
D2
VCC
REG
VCC
SO2N
G7
VCC
G6
SO2P
SW
SW
VCC
VCC
Const. Current
D6
SW
SW
BandGap
H bridge
H bridge
H bridge
H bridge
H bridge
H bridge
H bridge
Full ON
Full ON
Full ON
Full ON
Full ON
Full ON
SI3
VREF
VCC
VCC
REG
SO3N
E7
VCC
VCC
D7
detection, is reshaped and output to SO3x.
(p.10/16)
The sensor signal SI3, for lens position
SO3P
H5
H2
H3
H7
H6
H4
D8
G8
F8
B8
C8
E8
A4
A7
A6
A2
A3
A5
D1
C1
G1
E1
D3
B5
B6
C5
F1
F2
REG
PGND1
PGND2
PGND3
VM1
OUT1A
OUT1B
OUT2A
OUT2B
VM2
OUT3A
OUT3B
OUT4A
OUT4B
VM3
OUT5A
OUT5B
OUT6A
OUT6B
VM4
OUT7A
OUT7B
RNF
SENSE
VLIM
VREF
SO4P
SO4N
SI4
0.1Ω~5.0Ω
R
1
R
2
1～100uF
1～100uF
1～100uF
1～100uF
detection, is reshaped and output to SO4x.
(p.10/16)
The sensor signal SI4, for lens position
resistance division value as VLIM input
value, select R
M
M
M
When using the VREF voltage (0.9V)
to a voltage with the RNF
external resistor and transmitted
to the SENSE pin. (p.9/16)
The output current is converted
Iout[A] = VLIM[V]÷RNF[Ω]
1kΩ≦R
Technical Note
2009.06 - Rev.A
Bypass filter Capacitor for
power supply input. (p.14/16)
Bypass filter Capacitor for
power supply input. (p.14/16)
Bypass filter Capacitor for
power supply input. (p.14/16)
Bypass filter Capacitor for
power supply input. (p.14/16)
1
1
+R
and R
2
≦20kΩ (p.9/16)
2
values such that,