Rainbow-electronics MAX1664 Manual de usuario descargar pdf (Pagina 3)

MAX1664

Active-Matrix Liquid Crystal Display

(AMLCD) Supply

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(V

IN

= V

INP

= 3.3V, SHDN = IN, V

BPVDD

= 4V, V

BPVSS

= -1V, PGND1 = PGND2 = FPLL = GND, f

BPCLK

= 30kHz, T

A

= 0°C to +70°C,

unless otherwise noted. Typical values are at T

A

= +25°C.)

V

BPCLK

= 0 or 3.3V

SHDN = GND

Source and sink

Rising edge, 40mV hysteresis

SHDN = GND

Falling edge, 40mV hysteresis

V

LX2N

= 28V, V

LX2P

= -10V

V

FB2+

= 1.3V, V

FB2-

= -0.1V

CONDITIONS

µA0.01 1I

IN(BPCLK)

BPCLK Input Current

V0.7 x V

IN

V

IH(BPCLK)

BPCLK Input High Voltage

V0.3 x V

IN

V

IL(BPCLK)

BPCLK Input Low Voltage

µA80 200I

IN(BPVDD)

BPV

DD

Supply Current

µA-10 10I

LKG(BPDRV)

BPDRV Leakage Current

Ω0.35 0.7R

ON(BPDRV)

BPDRV On-Resistance

µA0.1 10I

SHDN(BP)

BPV

DD

Shutdown Current

V2.5 5.5V

VDD to VSS

BPV

DD

to BPV

SS

Voltage

Range

V-3 0V

BPVSS

BPV

SS

Supply Range

V2.5 5.5V

BPVDD

BPV

DD

Supply Range

mV-15 0 15V

FB2-

V1.225 1.25 1.275V

FB2+

FB2+ Regulation Voltage

FB2- Regulation Voltage

V1.091 1.125 1.159V

TH(RDY)

FB2+ Power-Ready Trip Level

mV85 120 165V

TH(RDY)

FB2- Power-Ready Trip Level

µA0.05 10

I

LKG(LX2N)

,

I

LKG(LX2P)

LX2N, LX2P Leakage Current

nA-100 100

I

FB2+

,

I

FB2-

FB2+, FB2- Input Bias Current

Ω0.9 1.7

R

ON(LX2N)

,

R

ON(LX2P)

LX2N, LX2P On-Resistance

UNITSMIN TYP MAXSYMBOLPARAMETER

C

PLLC

= 22nF

R

PLLC

= 100kΩ

C

SHUNT

= 2.2nF

PLLC = REF, BPCLK = GND

40 72

BPCLK Input Frequency

Range

27 48 kHz

20 36

f

BPCLK

MHz1.63 1.92 2.20f

C

VCO Center Frequency

(Note 1)

-2µA < I

REF

< 50µA

V0.90 1.05 1.20V

REF(UVLO)

Undervoltage Lockout

V1.225 1.250 1.275V

REF

Reference Voltage

(0.10 x V

IN

) typical hysteresis V0.3 x V

IN

V

IL(SHDN)

SHDN Input Low Voltage

FPLL = GND or IN µA0.01 1I

IN(FPLL)

FPLL Input Current

µA0.01 1I

IN(SHDN)

SHDN Input Current

V0.7 x V

IN

V

IH(SHDN)

SHDN Input High Voltage

I

SINK

= 2mA V0.05 0.4V

OL(RDY)

RDY Output Low Voltage

V

RDY

= 5.5V µA0.01 1I

LKG(RDYOH)

RDY Output High Leakage

FPLL = GND

FPLL = REF

FPLL = IN

Note 1: DC-DC 1 operates at one-half of the V

CO

frequency (f

C

/ 2).

BACKPLANE DRIVER

PLL

LOGIC SIGNALS

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

(AMLCD) Supply 1

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