Rainbow-electronics MAX1664 Manual do Utilizador descarregar pdf (Página 6)

MAX1664

Active-Matrix Liquid Crystal Display

(AMLCD) Supply

6 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

BPCLK

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

= +25°C, unless otherwise noted.)

= 3.3V; V

OUT2+

= 15V/8mA, V

OUT2-

= -5V/10mA

NOTE: LX2N, LX2P PULSES ARE SYNCHED TO DC-DC 1

DC-DC 2 SWITCHING WAVEFORMS

DISCONTINUOUS CONDUCTION

LX2N

LX2P

5V/div

500mA/

div

1µs/div

5V/div

LOAD

= 10,000pF

BPCLK TO BPDRV FALLING DELAY

BPCLK

BPDRV

2V/div

5V/div

100ns/div

MAX1664 TOC14

5V/div

2V/div

BPDRV

BPCLK

100ns/div

BPCLK TO BPDRV RISING DELAY

MAX1664 TOC14(a))

LOAD

= 10,000pF

0.4

0.2

1.0

0.8

0.6

1.6

1.4

1.2

1.8

0 21 3 4 5 6

NO-LOAD SUPPLY CURRENT

vs. INPUT VOLTAGE

MAX1664 TOC15

INPUT VOLTAGE (V)

NO-LOAD SUPPLY CURRENT (mA)

INCLUDES ALL

EXTERNAL COMPONENT

CURRENTS

5V/div

2V/div

5V/div

10V/div

5V/div

SHDN

REF

OUT2-

OUT2+

RDY

OUT1

500µs/div

OUT-OF-SHUTDOWN SEQUENCE

MAX1664 TOC16(a)

5V/div

500mA/div

LX1

OUT1

= 300mA, L1 = 3.3µH

500ns/div

DC-DC 1 SWITCHING WAVEFORMS

MAX1664 TOC17(a)

1 2 3 4 5 6 7 8 9 10 11 ... 15 16

(AMLCD) Supply 1

Comentários a estes Manuais

Sem comentários

Rainbow-electronics MAX1664 Manual do Utilizador Página 6

Comentários a estes Manuais

Manuais e produtos relacionados com Sensores Rainbow-electronics MAX1664