MAX1610 Datasheet, PDF (5/20 Pages) Maxim Integrated Products – Digitally Controlled CCFL Backlight Power Supplies

Digitally Controlled CCFL Backlight
Power Supplies
__________________________________________Typical Operating Characteristics
(T_A = +25°C, unless otherwise noted.)
REF OUTPUT VOLTAGE
vs. REF OUTPUT CURRENT
2.2
SHDN = VL, BATT = 5V
2.1
2.0
1.9
1.8
1.7
1.6
BATT SUPPLY CURRENT
vs. BATT VOLTAGE (SHDN = VL)
2.0
SHDN = VL, OTP = 3V
1.8
1.6
1.4
1.2
VL OUTPUT VOLTAGE
vs. VL OUTPUT CURRENT
5.0
SHDN = VL, OTP = 3V
4.5
BATT = 5V
4.0
BATT = 12V
3.5
3.0
2.5
1.5
1
10
100 1000
REF OUTPUT CURRENT (µA)
10000
1.0
0 4 8 12 16 20 24 28
BATT (V)
2.0
0
10
20
30
40
VL OUTPUT CURRENT (mA)
VL OUTPUT VOLTAGE
vs. VL LOAD CURRENT
3.70
SHDN = GND
3.65
3.60
BATT = 12V
3.55
3.50
3.45
3.40
BATT = 5V
3.35
3.30
0
200 400 600 800 1000
VL LOAD CURRENT (µA)
BATT SUPPLY CURRENT
vs. BATT VOLTAGE (SHDN = OV)
10
SHDN = OV
8
6
4
2
0
0 4 8 12 16 20 24 28
BATT (V)
VL OUTPUT VOLTAGE
vs. BATT VOLTAGE (SHDN = VL)
5.0
4.5
4.0
3.5
VL OUTPUT VOLTAGE
vs. BATT VOLTAGE (SHDN = OV)
5.0
NO LOAD ON VL,
SHDN = OV
4.5
4.0
3.5
3.0
2.5
2.0
0 4 8 12 16 20 24 28
BATT (V)
3.0
2.5
NO LOAD ON VL,
2.0 ^{SHDN = VL}
0 4 8 12 16 20 24 28
BATT (V)
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