MAQ3203 Просмотр технического описания (PDF) - Micrel

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Компоненты Описание

производитель

MAQ3203

High-Brightness LED Driver Controller with High-Side Current Sense

Micrel 

Micrel, Inc.

MAQ3203

Electrical Characteristics (4) (Continued)

VIN = VEN = VDIM = 12V; CVCC = 1.0µF; TJ = 25°C, bold values indicate −40°C ≤ TJ ≤ +125°C; unless noted.

Symbol Parameter

Condition

Min. Typ. Max.

Enable Input

ENHI

EN Logic Level High

2.0

ENLO

EN Logic Level Low

0.4

EN Bias Current

VEN = 12V

60

VEN = 0V

1

Start-Up Time

From EN Pin going high to DRV

going high

30

Dimming Input

DIMHI

DIM Logic Level High

2.0

DIMLO

DIM Logic Level Low

0.4

DIM Bias Current

VDIM = 0V

20

50

1

DIM Delay Time

From DIM Pin going high to DRV

going high

450

FDIM

Maximum Dimming Frequency

20

External FET Driver

DRV On-Resistance

Pull Up, ISOURCE = 10mA

2

Pull Down, ISINK = -10mA

1.5

DRV Transition Time

Rise Time, CLOAD = 1000pF

13

Fall Time, CLOAD = 1000pF

7

Thermal Protection

TLIM

Over-Temperature Shutdown

TJ Rising

160

TLIMHYS

Over-Temperature Shutdown Hysteresis

20

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, 1.5k in series with 100pF.

4. Specification for packaged product only.

5. Guaranteed by design.

Units

V

V

µA

µA

µs

V

V

µA

ns

kHz

Ω

ns

°C

March 2011

4

M9999-032411-A

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