BD8671KN Datasheet, PDF (1/5 Pages) Rohm – Silicon Monolithic Integrated Circuit

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STRUCTURE
PRODUCT NAME
：
Silicon Monolithic Integrated Circuit
：
DC/DC converter IC for camera module for car navigation system
MODEL NAME
BLOCK DIAGRAM
◎FEATURES：
： BD8671KN
：
Fig. - 2
・+3.3V output Step down DC/DC converter for asynchronous rectification system
・+12V output Boost DC/DC converter for asynchronous rectification system
・-5V output Voltage control charge pump for reversing type for negative voltage
・Soft start function
・Building in low voltage and over voltage protection function
・Building in terminal RT OPEN/Short protection
・The frequency can be set by external resistance
・Concentrated protection control with built-in sequencer
・VQFN-28 package
◎ABSOLUTE MAXIMUM RATING:（Ta=25℃）
Parameter
VIN supply voltage
PVIN supply voltage
Input terminal voltage 1^*1
Input terminal voltage 2^*2
Input terminal voltage 3^*3
Input terminal voltage 4^*4
Output terminal voltage 1^*5
Output terminal voltage 2^*6
Output terminal voltage 3^*7
Output terminal voltage 4^*8
Output terminal voltage 5^*9
Power dissipation
Operating temperature
Storage temperature
Symbol
Limits
Unit
VIN
-0.3 ～ +18.0
V
PVIN
-0.3 ～ VIN
V
VIN1
-0.3 ～ VIN
V
VIN2
-0.3 ～ +20.0
V
VIN3
-0.3 ～ +20.0
V
VIN4
-10.0 ～ +0.3
V
VOUT1
-0.3 ～ VIN
V
VOUT2
-0.3 ～ PVIN
V
VOUT3
-0.3 ～ +20.0
V
VOUT4
-0.3
～
VIN3^*10
V
VOUT5
VIN4 ～ +0.3
V
Pd
0.725^*11
W
Topr
-40 ～ +85
℃
Tstg
-55 ～ +150
℃
*1 FB12、SS12、TEST1、TEST2、TEST3、RT、CTL1、CTL2、CTL3、SS33、V33 terminal voltage *2 V12 terminal voltage *3 V12IN terminal voltage
*4 MV8 terminal voltage *5 FC12 terminal voltage *6 SW33 terminal voltage *7 SW12 terminal voltage
*8 V8、CP terminal voltage *9 MV5、CM terminal voltage
*10 V8 terminal voltage ABSOLUTE MAXIMUM RATING is VIN3 or 10V is low. Between V8 terminal voltage and MV5 terminal voltage ABSOLUTE MAXIMUM RATING is 15V.
*11 70mm×70mm, thickness1.6mm, less than 3% share of copper foil when implementing glass epoxy board.
Operating at higher than Ta=25℃, 5.8mW shall be reduced per 1
◎OPERATION CONDITION (Please set the power-supply voltage in consideration of a power dissipation.)
Parameter
Symbol
MIN
TYP
MAX
Unit
VIN supply voltage
VIN
4.5
6.0
9.0
V
This product is not designed for protection against radioactive rays.
REV. A