MP3304 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING

MP3304 Rev. 0.91

www.MonolithicPower.com

3

4/19/2010

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ELECTRICAL CHARACTERISTICS

Parameters

Symbol

Condition

Min

Typ

Max Units

Operating Input Voltage

2.5

6

V

Supply Current (Shutdown)

1

2

µA

Supply Current (Quiescent)

690

850

µA

Switching Frequency

1.7

2.2

2.7

MHz

Maximum Duty Cycle

90

%

Under Voltage Lockout

IN Under Voltage Lockout

2.25

2.45

V

Under Voltage Lockout

Hysteresis

92

mV

38

V

26

V

Open Lamp Shutdown

Threshold

20

V

Enable

EN OFF Threshold

0.4

V

EN ON Threshold

1.8

V

Disable Timer

5

ms

Feedback

ISET Voltage

185

200

215

mV

ISET Input Bias Current

-600

-300

nA

Output Switch

SW On-Resistance

0.4

Ω

SW Current Limit

Duty Cycle = 60%

1.33

A

Thermal Shutdown

150

°C

LED Switch(M2, refer block

diagram) On Resistance

0.8

Ω