OZ9936 Просмотр технического описания (PDF) - O2Micro International

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OZ9936

OZ9936 / LCD Monitor CCFL Inverter Controller

O2Micro International 

ELECTRICAL CHARACTERISTICS

OZ9936

Parameter

Supply Current

Stand By

Operating

Soft Start Current Source

Under Voltage Lockout

ENA_SST_CMP Pin - Low

Operating Frequency on

DRV1 & DRV2 Pin

Duty Cycle on DRV1 &

DRV2 (active high)

Maximum

Ignition Time

(Open Lamp Time Out)

Open Lamp Shutdown

Delay Time

V1 (ENA_SST_CMP Pin)

Threshold

Drivers

Symbol

Test Conditions

VDDA=5V; RT=100K;

CSST=12.1nF, Ta=25 oC

Min

Idds

Idd

ISST

UVLO

VCMP

fop

V1=0V; V8=0V

V1=2V; V8=0V

Capacitance at DRV1 &

DRV2=500pF

V1=0V; V8=0V; V7=0V

V1=1.2V; VDDA from 0V to

5V

V1=1.2V; V8=660mV;

V7=2.8V

Température Cœfficient

1.7

3.2

0.77

48.5

ENA

V1=3.5V; V8=0V; V7=0V

V8=0V; V7 ≥3.25V

ISEN<0.75V

43

1.8

2.21

600

DRV1

DRV2

Ron

For Iout= 70 mA; Tamb=25oC

Ron

For Iout= 70 mA; Tamb=25oC

Analog Dimming Control

Minimum Lamp Current

Reference Voltage

Maximum Lamp Current

Reference Voltage

External PWM Dimming Control

PWM Dimming Detection

Threshold

Lamp Current Reference

Voltage

ISEN

Note: Vx denotes voltage at Pinx

0.40

1.15

1.17

Température Cœfficient

Limits

Typ

350

1.5

3.0

3.8

0.83

50.0

66

2.0

2.60

20

20

0.55

1.235

2.7

1.25

85

Max

600

3.5

4.3

4.4

0.90

51.5

2.2

2.99

40

40

0.86

1.35

1.32

Unit

µA

mA

µA

V

V

kHZ

ppm/ oC

%

sec

sec

mV

Ω

Ω

V

V

V

V

ppm/ oC

CONFIDENTIAL

OZ9936-DS-1.1

Page 3

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