DS3984Z datasheet(5/24 Pages) DALLAS

5 / 24 page

4-Channel Cold-Cathode

Fluorescent Lamp Controller

_____________________________________________________________________

ACTIVE SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

5.3

5.1

4.9

4.7

4.5

5.5

fLF:OSC = 71kHz

GATE QC = 3.5nC

DPWM = 100%

DPWM = 50%

DPWM = 10%

SVM = 0V

ACTIVE SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

-15

9.5

10.0

10.5

11.0

12.0

11.5

12.5

13.0

13.5

14.0

9.0

-40

VCC = 5.5V

VCC = 5.0V

DPWM = 100%

fLF:OSC = 71kHz

GATE QC = 3.5nC

VCC = 4.5V

INTERNAL FREQUENCY CHANGE

vs. TEMPERATURE

TEMPERATURE (

°C)

-15

-3

-2

-1

-4

-40

LAMP FREQUENCY

DPWM FREQUENCY

TYPICAL OPERATION AT 12V

µs

5.0V GA

µs

5.0V GB

µs

2.0V LCM

µs

2.0V OVD

BURST DIMMING AT 150Hz AND 10%

1ms

5.0V GA

1ms

5.0V GB

1ms

2.0V LCM

1ms

2.0V OVD

TYPICAL OPERATION AT 15V

µs

5.0V GA

µs

5.0V GB

µs

2.0V LCM

µs

2.0V OVD

TYPICAL OPERATION AT 18V

µs

5.0V GA

µs

5.0V GB

µs

2.0V LCM

µs

2.0V OVD

TYPICAL STARTUP WITH SVM

2ms

2.0V SVM

2ms

5.0V GB

2ms

2.0V LCM

2ms

2.0V OVD

Typical Operating Characteristics

(VCC = +5.0V, TA = +25°C, unless otherwise noted.)

DS3984Z Datasheet(PDF) 5 Page - Dallas Semiconductor

DS3984Z Datasheet(HTML) 5 Page - Dallas Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Datasheet Download

Link URL