MPQ7220

– 6-CHANNEL BOOST LED DRIVER WITH MAX 100mA/CHANNEL

MPQ7220 Rev. 1.0

MonolithicPower.com

11

7/30/2019

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TYPICAL PERFORMANCE CHARACTERISTICS

VIN = 12V, L = 22μH, LED = 6P12S, fSW = 470kHz, ISET = 100mA, TA = 25°C, unless otherwise noted.

Efficiency with 6P8S LED

VLED = 23V, ILED = 6 x ISET

Efficiency with 6P12S LED

VLED = 34V, ILED = 6 x ISET

70

73

76

79

82

85

88

91

94

97

8

10

12

14

16

18

20

ISET=100mA

ISET=50mA

INPUT VOLTAGE (V)

70

73

76

79

82

85

88

91

94

97

9

12

15

18

21

24

27

30

ISET=100mA

ISET=50mA

INPUT VOLTAGE (V)

Steady State

ISET = 100mA

Frequency Spread Spectrum

1/20 of the center frequency

CH2: VOUT

CH3: ILED

CH4: IL

CH1: VSW

CH3:

ILED

CH2:

VOUT

CH4: IL

CH1:

VSW

Start-Up through VIN

ISET = 100mA

Shutdown through VIN

ISET = 100mA

CH2: VIN

CH3: ILED

CH4: IL

CH1: VSW

CH2:

VIN

CH3:

ILED

CH4: IL

CH1:

VSW