Rainbow-electronics MAX1611 Manual do Utilizador descarregar pdf (Página 3)

MAX1610/MAX1611

Digitally Controlled CCFL Backlight

Power Supplies

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

= 0°C to +70°C, BATT = 8.2V, MINDAC = 0V, unless otherwise noted. Typical values are at T

= +25°C.)

GND < OTP < VL

Guaranteed monotonic

OTP rising

CONDITIONS

MAX1610 LOGIC LEVELS

mV500CS Overcurrent Cutoff Threshold

µA

-1 1OTP Input Bias Current

mV-20 20OTP Voltage Trip Point

OPEN AND SHORTED TUBE PROTECTION

µA

20CC Source Current

µA

D/A at full scale

CC Sink Current

µmho

CSAV to CC Voltage-to-Current Converter

Transconductance

CC = 2V, CSAV = 1V, D/A at 1LSB

DAC Resolution Bits5

CC = 2V, CSAV = 1V, D/A at 1LSB

DAC AND ERROR AMPLIFIER

µA

-5 5CSAV Input Bias Current

232 247 260

CC = 2V, CSAV = 0V, D/A at full scale

CSAV Regulation Point

V0 1.0CSAV Input Voltage Range

V3MINDAC Digital PWM Threshold

V01MINDAC Input Voltage Range

µA

-1 1MINDAC Input Bias Current

UNITSMIN TYP MAXPARAMETER

D/A at 1LSB 12

Referred to REF

V0.8

SHDN, UP, DN Input Low Voltage

V2.4

SHDN, UP, DN Input High Voltage

µA

-1 1

SHDN, UP, DN Input Bias Current

MAX1611 LOGIC LEVELS

V0.8SMBSUS, SDA, SCL Input Low Voltage

V2.2SMBSUS, SDA, SCL Input High Voltage

µA

-1 1SMBSUS, SDA, SCL Input Bias Current

SDA

= 0.6V mA6SDA Output Low Sink Current

1 2 3 4 5 6 7 8 ... 19 20

MAX1610/MAX1611 1
Power Supplies 1

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