MIC3223 데이터 시트보기 (PDF) - Micrel

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MIC3223

High Power Boost LED Driver with Integrated FET

Micrel 

Micrel, Inc.

MIC3223

Symbol

Parameter

Condition

Min Typ Max Units

DIM_IN =1µs CDIM_OUT = 1.25nF

0.7

DIM MIN Minimum Dimming Pulse

DIM_OUT measured from 4V rising to 2.5

falling

0.5

1.3

µs

1.5

µs

DIM_OUT pull up resistance

RDO

DIM_OUT Resistance High

IDIM_OUT = +2mA

70

Ω

Dim Out pull down resistance

RDO

DIM_OUT Resistance Low

IDIM_OUT = -2mA

FSW

Oscillator Frequency

RSS

Soft Start Resistance

TSD

Over Temperature Threshold

Shutdown

Temperature rising

Hysteresis

40

Ω

0.7

1

1.3 MHz

30

46

62

kΩ

165

°C

10

°C

Notes

1. Exceeding the absolute maximum rating may damage the device.

2. The device is not guaranteed to function outside its operating rating.

3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.

4. Specification for packaged product only.

Test Circuit

January 2010

4

M9999-011510-A

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