Supply IC. BD8160EFV Datasheet

BD8160EFV IC. Datasheet pdf. Equivalent

Part BD8160EFV
Description 12V Input Multi-channel System Power Supply IC
Feature Power Supply IC Series for TFT-LCD Panels 12V Input Multi-channel System Power Supply IC BD8160AEFV .
Manufacture Rohm
Datasheet
Download BD8160EFV Datasheet



BD8160EFV
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
Supply Voltage
SUP,VIN
20
Power Dissipation
Pd 4700*
Operating Temperature Range
Topr
-40+85
Storage Temperature Range
Tstg
-55+150
Junction Temperature
Tjmax
150
SW Voltage
VSW
21
SWB Voltage
VSWB
19
EN1,EN2 Voltage
VEN1,VEN2
19
* Derating in done 37.6mW/for operating above Ta25(On 4-layer 70.0mm×70.0mm×1.6mm board)
Recommendable Operation Range (Ta=25)
Parameter
Symbol
Supply Voltage
VS Voltage
Switch current for SW
Switch current for SWB
EN1,EN2,FREQ Voltage
** Pd, ASO should not be exceeded
SUP,VIN
VS
ISW
ISWB
VEN1,VEN2,VFREQ
Min
8
VIN+2
Limits
Typ
12
15
Max
18
18
2.6**
2.0**
18
Unit
V
mW
V
V
V
Unit
V
V
A
A
V
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
1/18
2009.07 - Rev.B



BD8160EFV
BD8160AEFV
Technical Note
Electrical characteristics (unless otherwise specified VIN=12V and Ta=25°C)
1. DC/DC converter controller block
Parameter
Symbol
Limits
Min Typ Max
Soft start – SS
SS source current
ISO 6 10 14
Error amplifier block – FB and FBB
FB and FBB input bias current
IFB12
- 0.1 2
Feedback voltage for boost converter VFB 1.150 1.162 1.174
Feedback voltage for buck converter
VFBB
1.188 1.213 1.238
SW block – SW
On resistance N-channel
RONN
- 0.2 0.3
Leak current N-channel
ILEAKN1
-
0 10
Switch current limit for SW
ISW 2.6 -
-
Maximum duty cycle
MDUTY 75 90 97
SW block – SWB
On resistance N-channel
RONH
- 0.2 0.3
Leak current N-channel
ILEAKN2
-
0 10
Switch current limit for SWB
ISWB 2.0 -
-
Protections
Over Voltage Protection for SW
VSWOVP
18.5
19
19.5
Unit Conditions
µA VSS=0.5V
µA
V Voltage follower
V
IO=0.8A
µA VSW =18V
A
% FB= 0V
IO=0.8A
µA VINB=18V , VSWB =0V
A
V
2. Charge pump driver block
Parameter
Error amplifier block – FBP and FBN
FBP, FBN input bias current
Feedback voltage for VGH
Feedback voltage for VGL
Delay start block
DLY1, DLY2 source current
DRP, DRN block
On resistance N-channel
On resistance P-channel
Symbol
Min
IFBP, IFBN
VFBP
VFBN
-
1.188
0.18
IDLY1, IDLY2
2
RONN
RONP
-
-
Limits
Typ
0.1
1.213
0.2
5
5
3
Max
1
1.238
0.22
9
-
-
Unit Conditions
µA
V
V
µA VDLY=0.5V
IO=20mA
IO=20mA
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
2/18
2009.07 - Rev.B





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