ZXLB1600 查看數據表（PDF） - Zetex => Diodes

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产品描述 (功能)

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ZXLB1600

LCD BIAS BOOST CONVERTER

Zetex => Diodes 

ZXLB1600

Test conditions unless otherwise stated: VIN=3.0V, TAMB=25°C

Symbol

VADJ (NOM)

VADJ

I ADJ

VSENSE

∆T/T

fLPF

ALPF

VENL

VENH

IENL

IENH

IBLQ

VBLT

VBTOL

VBLHYS

VLBT

VLBT (max)

IBLOL

VBLOL

IBLOH

VBLOH

Parameter

Conditions

Min

Output Voltage control by dc voltage applied to ‘ADJ’ pin

Internal reference voltage

‘ADJ’ pin floating, ‘EN’= VIN

External overdrive voltage range

0.5

on ‘ADJ’ pin for output voltage

control

Input current

0.5<VADJ < VADJ (NOM)

Output voltage

‘ADJ’ pin floating, ‘EN’= VIN

27

Output Voltage control by PWM signal applied to ‘EN’ input

PWM duty cycle range at ‘EN’ 10kHz < f < 100kHz, VENH =VIN

40

input

Internal low pass filter cut-off

frequency

Filter attenuation

F=30kHz

Enable input

Low level Input voltage

Device in shutdown

High level Input voltage

Device active

1.4

Low level input current

VEN =0V

High level input current

VEN =VIN

Battery low comparator

Quiescent current

VIN =5.5V

Detection threshold

VIN falling

Threshold tolerance

Hysteresis

Threshold voltage on LBT pin

VIN rising

LBT floating

Maximum voltage on LBT pin

during normal device operation

Low level output current

Output ‘on’

Low level output voltage

High level output current

IBLOL = 1mA

Output ‘off’

High level output voltage

Output ‘off’

Typ

1.23

4

52.5

2

20

1.21

Max

VADJ

(NOM)

-10

29

100

0.4

Vin

-100

100

3

+/-2

Vin-

0.5

1

0.4

2

29

Units

V

V

µA

V

%

kHz

dB

V

V

nA

nA

µA

V

%

mV

V

V

mA

V

µA

V

DRAFT ISSUE J January 2002

ZXLB1600

3

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