BP5302A Datasheet, PDF (1/5 Pages) Rohm – DC / DC converter for LCDs

DC / DC converter for LCDs
BP5302A / BP5302XA
The BP5302A and BP5302XA are DC / DC converters for supplying power to liquid crystal display (LCD) panels.
The modules supply a negative voltage from a positive power supply. They are available in a single in-line
package as an upright (BP5302A) or L-shaped lead (BP5302XA) type.
Applications
LCD panels in personal computers and word processors
Features
1) Wide input voltage range.(+5V to +14V)
2) High accurate output voltage. ( −24±0.75V)
3) High conversion efficiency. (Typ. 80%)
4) Built-in protection circuit.
5) Built-in ON/OFF switch.
6) Compact and light.
7) Available as an upright or L-shaped lead type.
Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Input voltage
VIN
15
V
Operating temperature range
Topr
0~60
°C
Storage temperature range
Tstg
−30~85
°C
Electrical characteristics
(Unless otherwise noted:Ta=25°C, and R1 and R2 resistors in the measurement circuit of Fig.1 are disconnected)
Parameter
Input voltage
Output current
Output voltage
Line regulation
Load regulation
Ripple nose voltage
Efficiency
ON / OFF CTL votage when ON
Symbol
VIN
IOUT
VOUT
DV1
DV2
n1
h
VCTL
ON / OFF CTL votage when OFF VCTL
ON / OFF CTL current
ICTL
Current consumption when OFF
IOFF
R1 resistance
R1
R2 resistance
R2
∗ Measured with a band width of 20MHz.
Min. Typ. Max.
5
−
14
−
−
30
−23.25 −24.00 -24.75
−
−
0.75
−
−
0.5
−
−
200
70
80
-
1.5
−
6.0
−
−
0.5
(Alternatively, when OPEN)
−
−
150
−
−
10
50
−
∞
20
−
∞
Unit
V
mA
V
V
V
mVP-P
%
V
V
µA
µA
kΩ
kΩ
Conditions
VIN=12V, IOUT=20mA
VIN=5~14V, IOUT=20mA
VIN=12V, IOUT=0~20mA
VIN=12V, IOUT=20mA ^∗
VIN=12V, IOUT=20mA
VIN=5~14V
VIN=5~14V
VIN=5~14V, VCTL=5V
VIN=5~14V, VCTL=0V
VIN=5~14V, VCTL=5V
VIN=5~14V, VCTL=5V
1/4