BD8160AEFV Datasheet, PDF (1/19 Pages) Rohm – 12V Input Multi-channel System Power Supply IC

Power Supply IC Series for TFT-LCD Panels
12V Input Multi-channel
System Power Supply IC
BD8160AEFV
No.09035EBT01
●Description
The BD8160AEFV is a system power supply for the TFT-LCD panels used for liquid crystal TVs.
Incorporates two high-power FETs with low on resistance for large currents that employ high-power packages, thus driving
large current loads while suppressing the generation of heat. A charge pump controller is incorporated as well, thus greatly
reducing the number of application components.
●Features
1) Step-up and step-down DC/DC converter
2) Incorporates 2.6 A N-channel FET.
3) Incorporates positive/negative charge pumps.
4) Input voltage limit: 8 V to 18 V
5) Feedback voltage: 1.162 V ± 1%
6) Switching frequency: 500 kHz / 750kHz
7) Protection circuit: Under voltage lockout protection circuit
Thermal shutdown circuit
Overcurrent protection circuit
Short Circuit Protection
Overvoltage protection circuit for VS voltage (Boost DC/DC output)
8) HTSSOP-B28 Package
●Applications
Power supply for the TFT-LCD panels used for LCD TVs
●Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Rating
Unit
Supply Voltage
SUP,VIN
20
V
Power Dissipation
Pd
4700*
mW
Operating Temperature Range
Topr
-40～+85
℃
Storage Temperature Range
Tstg
-55～+150
℃
Junction Temperature
Tjmax
150
℃
SW Voltage
VSW
21
V
SWB Voltage
VSWB
19
V
EN1,EN2 Voltage
VEN1,VEN2
19
V
* Derating in done 37.6mW/℃ for operating above Ta≧25℃(On 4-layer 70.0mm×70.0mm×1.6mm board)
●Recommendable Operation Range (Ta=25℃)
Parameter
Symbol
Limits
Min
Typ
Max
Unit
Supply Voltage
SUP,VIN
8
12
18
V
VS Voltage
VS
VIN+2
15
18
V
Switch current for SW
ISW
－
－
2.6**
A
Switch current for SWB
ISWB
－
－
2.0**
A
EN1,EN2,FREQ Voltage
VEN1,VEN2,VFREQ
－
－
18
V
** Pd, ASO should not be exceeded
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2009.07 - Rev.B