DS3882E datasheet(5/30 Pages) MAXIM

Part #	DS3882E

Description	Dual-Channel Automotive CCFL Controller

Download	30 Pages

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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Dual-Channel Automotive CCFL Controller

_____________________________________________________________________

5

ACTIVE SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

5.20

5.15

4.80 4.85 4.90

5.00 5.05

4.95

5.10

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

4.0

4.75

5.25

DPWM = 10%

DPWM = 50%

DPWM = 100%

SVML< 2V

fLF:OSC = 64kHz

GATE QC = 3.5nC

ACTIVE SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

32.5

5.7

5.9

6.1

6.3

6.5

6.7

6.9

7.1

7.3

7.5

5.5

-40.0

105

VCC = 4.75V VCC = 5.0V

VCC = 5.25V

DPWM = 100%

fLF:OSC = 64kHz

GATE QC = 3.5nC

INTERNAL FREQUENCY CHANGE

vs. TEMPERATURE

TEMPERATURE (

°C)

32.5

-0.8

-0.6

-0.4

-0.2

0

0.2

0.4

0.6

0.8

1.0

-1.0

-40.0

105

DPWM FREQUENCY

LAMP FREQUENCY

TYPICAL OPERATION AT 11V

10

µs

5.0V GA

10

µs

5.0V GB

10

µs

2.00V LCM

10

µs

2.00V OVD

TYPICAL OPERATION AT 13V

10

µs

5.0V GA

10

µs

5.0V GB

10

µs

2.00V LCM

10

µs

2.00V OVD

TYPICAL OPERATION AT 16V

10

µs

5.0V GA

10

µs

5.0V GB

10

µs

2.00V LCM

10

µs

2.00V OVD

TYPICAL STARTUP WITH SVM

2ms

5.0V SVML

2ms

5.0V GB

2ms

2.00V LCM

2ms

2.00V OVD

BURST DIMMING AT 150Hz AND 10%

1ms

5.0V GA

1ms

5.0V GB

1ms

2.00V LCM

1ms

2.00V OVD

BURST DIMMING AT 150Hz AND 50%

1ms

5.0V GA

1ms

5.0V GB

1ms

2.00V LCM

1ms

2.00V OVD

Typical Operating Characteristics

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

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