MAX16834 datasheet(5/23 Pages) MAXIM

Part #	MAX16834

Description	High-Power LED Driver with Integrated High-Side LED Current Sense and PWM Dimming MOSFET Driver

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Manufacturer	MAXIM [Maxim Integrated Products]

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High-Power LED Driver with Integrated High-Side LED

Current Sense and PWM Dimming MOSFET Driver

_______________________________________________________________________________________

5

VREF vs. TEMPERATURE

TEMPERATURE (

°C)

110

95

-25 -10 5

35 50 65

20

80

3.60

3.62

3.64

3.66

3.68

3.70

3.72

3.74

-40

125

VIN = 12V

VREF vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

24

20

16

12

8

3.55

3.60

3.65

3.70

3.75

3.80

3.50

428

VREF vs. IREF

IREF (mA)

9

8

1

2

3

5

6

4

7

3.6985

3.6990

3.6995

3.7000

3.7005

3.7010

3.7015

3.7020

3.6980

010

VIN = 12V

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

24

20

16

12

8

2

4

6

8

10

12

14

16

18

20

0

428

PWMDIM = 0

SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

110

95

65 80

-10 5

20 35 50

-25

1

2

3

4

5

6

7

8

9

10

0

-40

125

VIN = 12V

PWMDIM = 0

RT vs. SWITCHING FREQUENCY

SWITCHING FREQUENCY (kHz)

10

100

1

1000

100

VIN = 12V

SWITCHING FREQUENCY

vs. TEMPERATURE

TEMPERATURE (

°C)

110

95

65 80

-10 5

20 35 50

-25

592

593

594

595

596

597

598

599

600

601

602

603

604

605

591

590

-40

125

VIN = 12V

VCC vs. ICC

ICC (mA)

90

80

60 70

20 30 40 50

10

6.92

6.94

6.96

6.98

7.00

7.02

7.04

7.06

7.08

7.10

7.12

7.14

7.16

6.90

0100

VIN = 12V

VCC vs. ICC

ICC (mA)

90

80

70

60

50

40

30

20

10

6.9

7.0

7.1

7.2

6.8

0100

VIN = 12V

TA = +125

°C

TA = +100

°C

TA = +25

°C

TA = -40

°C

Typical Operating Characteristics

(VIN = VHV = 12V, VUVEN = 5V, VLV = VPWMDIM = SGND, CVCC = 4.7µF, CLCV = 100nF, CREF = 100nF, RSENSE+ = 0.1Ω,

RRT = 10kΩ, TA = +25°C, unless otherwise noted.)

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