BD8153EFV Datasheet, PDF (1/18 Pages) Rohm – 5V Input Multi-channel System Power Supply IC

Power Supply IC Series for TFT-LCD Panels
5V Input Multi-channel
System Power Supply IC
BD8153EFV
No.09035JBT09
●Description
The BD8153EFV is a system power supply IC for TFT panels.A 1-chip IC providing a total of four voltages required for TFT
panels, i.e., logic voltage, sauce voltage, gate high-level, and gate low-level voltage, thus constructing a TFT panel power
supply with minimal components required.
●Features (BD8153EFV)
1) Operates in an operating voltage range as low as 2.1 V to 6. 0 V.
2) Incorporates a step-up DC/DC converter.
3) Incorporates a 3.3-V regulator.
4) Incorporates positive and negative-side charge pumps.
5) Switching frequency of 1100 kHz
6) DC/DC converter feedback voltage of 1.24 V ± 1%
7) Incorporates a gate shading function
8) Under-voltage lockout protection circuit
9) Thermal shutdown circuit
10) Overcurrent protection circuit
11) HTSSOP-B24 package
●Applications
Liquid crystal TV, PC monitor, and TFT-LCD panel
●Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limit
Unit
Power supply voltage
VCC
7
V
Vo1 voltage
Vo1
19
V
Vo2 voltage
Vo2
32
V
SW voltage
Vsw
19
V
Maximum junction temperature
Tjmax
150
°C
Power dissipation
Pd
1100*
mW
Operating temperature range
Topr
-40 to 125
°C
Storage temperature range
Tstg
-55 to 150
°C
* Reduced by 4.7 mW/°C over 25°C, when mounted on a glass epoxy board.
(70 mm  70 mm  1.6 mm).
●Recommended Operating Ranges
Parameter
Power supply voltage
Vo1 voltage
SW voltage
SW Current
Vo2 voltage
Symbol
VCC
Vo1
Vsw
Isw
Vo2
Limit
MIN
MAX
Unit
2.1
6
V
8
18
V
—
18
V
—
1.8
A
—
30
V
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2009.07 - Rev.B