Rainbow-electronics MAX1664 Manual de usuario descargar pdf (Pagina 5)

MAX1664

Active-Matrix Liquid Crystal Display

(AMLCD) Supply

_______________________________________________________________________________________

Typical Operating Characteristics (continued)

BPCLK

= 22.5kHz, FPLL = GND, L1 = 3.3µH, L2 = 4.7µH, T

= +25°C, unless otherwise noted.)

OUT2-

= -5V, I

LOAD

= 5mA, C

OUT2-

= 0.47µF

A: V

OUT2-

, 200mV/div, AC COUPLED

B: V

, 3V to 4V

OUT2-

LINE-TRANSIENT RESPONSE

MAX1664 TOC09

200mV/

div

500mV/

div

2ms/div

OUT1

= 5V, V

= 3.3V, C

OUT1

= 20µF

A: V

OUT1

, 50mV/div, AC COUPLED

B: I

OUT1

, 25mA TO 225mA, 100mA/div

OUT1

LOAD-TRANSIENT RESPONSE

MAX1664 TOC10

50mV/

div

100mA/

div

2ms/div

400

200

800

600

1200

1000

1400

0 20 3010 40 50 60 70 80 90

INTERNAL FET ON-RESISTANCE

vs. TEMPERATURE

MAX1664 TOC 11

TEMPERATURE (°C)

INTERNAL FET ON-RESISTANCE (mΩ)

LX2N

LX2P

BPDRV N-CHANNEL

LX1

BPDRV P-CHANNEL

300

0.001 0.01 0.1 1

BPDRV RISE AND FALL TIME

vs. LOAD CAPACITANCE

MAX1664 TOC12

LOAD CAPACITANCE (µF)

RISE/FALL TIME (ns)

100

200

250

150

LOAD

FROM

BPDRV TO GND

RISE TIME

FALL TIME

OUT1

= 5V, I

LOAD

= 250mA, C

OUT1

= 20µF

A: V

OUT1

, 50mV/div, AC COUPLED

B: V

, 3V to 4V

OUT1

LINE-TRANSIENT RESPONSE

A 50mV/

div

500mV/

div

2ms/div

MAX1664 TOC07

OUT2+

= 15V, I

LOAD

= 5mA, C

OUT2+

= 0.22µF

A: V

OUT2+

, 200mV/div, AC COUPLED

B: V

, 3V to 4V

OUT2+

LINE-TRANSIENT RESPONSE

MAX1664 TOC08

200mV/

div

500mV/

div

2ms/div

1 2 3 4 5 6 7 8 9 10 ... 15 16

(AMLCD) Supply 1

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Rainbow-electronics MAX1664 Manual de usuario Pagina 5

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