MAX1664 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX1664 Datasheet PDF : 16 Pages
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Active-Matrix Liquid Crystal Display
(AMLCD) Supply
Typical Operating Characteristics (continued)
(fBPCLK = 22.5kHz, FPLL = GND, L1 = 3.3µH, L2 = 4.7µH, TA = +25°C, unless otherwise noted.)
VOUT1 LINE-TRANSIENT RESPONSE
VOUT2+ LINE-TRANSIENT RESPONSE
A
50mV/
div
B
500mV/
div
2ms/div
VOUT1 = 5V, ILOAD = 250mA, COUT1 = 20µF
A: VOUT1, 50mV/div, AC COUPLED
B: VIN, 3V to 4V
VOUT2- LINE-TRANSIENT RESPONSE
200mV/
A
div
A
200mV/
div
B
500mV/
div
2ms/div
VOUT2+ = 15V, ILOAD = 5mA, COUT2+ = 0.22µF
A: VOUT2+, 200mV/div, AC COUPLED
B: VIN, 3V to 4V
VOUT1 LOAD-TRANSIENT RESPONSE
A
50mV/
div
B
500mV/
div
B
100mA/
div
2ms/div
VOUT2- = -5V, ILOAD = 5mA, COUT2- = 0.47µF
A: VOUT2-, 200mV/div, AC COUPLED
B: VIN, 3V to 4V
INTERNAL FET ON-RESISTANCE
vs. TEMPERATURE
1400
1200
LX2N
1000
800
BPDRV P-CHANNEL LX2P
600
400
BPDRV N-CHANNEL
200
LX1
0
0 10 20 30 40 50 60 70 80 90
TEMPERATURE (°C)
2ms/div
VOUT1 = 5V, VIN = 3.3V, COUT1 = 20µF
A: VOUT1, 50mV/div, AC COUPLED
B: IOUT1, 25mA TO 225mA, 100mA/div
BPDRV RISE AND FALL TIME
vs. LOAD CAPACITANCE
300
250
200
RISE TIME
150
100
50
0
0.001
FALL TIME
CLOAD FROM
BPDRV TO GND
0.01
0.1
1
LOAD CAPACITANCE (µF)
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