BD8682MUV-M Datasheet, PDF (1/28 Pages) Rohm – Camera Module System Power Supply ICs for CMOS Sensor

Datasheet
System Power Supply ICs for Automotive Camera Modules
Camera Module System Power
Supply ICs for CMOS Sensor
BD8682MUV-M
●General Description
BD8682MUV-M is a power supply for a camera module
that is connected directly to the battery voltage. LDOs
for the CMOS sensor, a DC/DC converter for the ISP
and a wide input range step-down DC/DC converter are
integrated. Furthermore, because of its integrated
variable output functionality, it can be used with various
configurations of CMOS sensors and ISP.
BD8682MUV-M is available in VQFN32SV5050 package,
making it ideal for small camera modules.
●Features
 CH1: Integrated high voltage type Nch MOSFET
step-down DC/DC converter ( variable output voltage
via external resistors)
 CH2: Pch output LDO (selectable output: 2.8V or
3.3V)
 CH3: Pch output LDO (selectable output: 1.8V or
OFF)
 CH4: Integrated Pch MOSFET step-down DC/DC
converter. (selectable output: 1.5V, 1.2V, 1.8V).
 Synchronous rectification (CH1 and CH4)
 Reset for CH2 LDO
 Integrated overvoltage, undervoltage and overcurrent
protection (10ms timer latch)
 11ms off timer
 Sequence control for all outputs
 Small package: VQFN32SV5050
 AEC-Q100 Qualified
●Typical Application Circuit
Application circuit schematic1
(5.9V~18V)
+B
L0
100µH
CIN01
0.1µF
CIN02
CIN
22µF×3
1µF
VCC
PVCC4
Vo4
(1.5V, 1.2V, 1.8V)
L4
10µH
CIN4
1µF
SW4
CO4
10µF
PGND4
VO4
Vo3
(1.8V)
SS4
CSS4
0.01µF
VO3
CO3
4.7µF
SS3
CSS3
0.01µF
GND
EN
●Key Specifications
 Input voltage range:
 Standby current:
 Operating temperature range:
 Switching frequency (ch1):
 Switching frequency (ch4):
 Output current (ch1):
 Output current (ch2):
 Output current (ch3):
 Output current (ch4):
5.9V to 40V
10μA (Max.)
-40℃ to +105℃
500kHz (Typ.)
1MHz (Typ.)
500mA (Max.)
130mA (Max.)
60mA (Max.)
250mA (Max.)
●Package
VQFN32SV5050
W (Typ.) x D (Typ.) x H (Max.)
5.00mm x 5.00mm x 1.00mm
VQFN32SV5050
●Applications
Camera systems using CMOS sensors such car cameras
and surveillances cameras.
PVCC1
VREG50
BOOT1
SW1
PGND1
FB1
SS1
COMP1
PVCC2
VO2
SS2
RSTO
CIN1
10µF
CB1
1µF
22µH
L1
D1
5.0V
C5
1µF
CO1
22µF
RFB1
7.5kΩ
CFB1
2200pF
CSS1
0.047µF
RC1
51kΩ
CC1
2200pF
RFB2
2.4kΩ
(2kΩ)
Vo1
CIN2
1µF
CO2
4.7µF
CSS2
0.01µF
RRST
4.7kΩ
Vo2
(2.8V, 3.3V)
Figure 1. Application circuit schematic 1
○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays
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29.Nov.2013 Rev.003