Micrel Inc.

MIC2844A

August 2009

2

M9999-080309-D

Ordering Information

Part Number

Mark Code

(1)

Temperature Range

Package

(2)

MIC2844AYMT

T4Y

–40°C to +125°C

10-Pin 2mm x 2mm Thin MLF

®

Note:

1.

Thin MLF

®

= Pin 1 identifier.

2.

Thin MLF

Pin Configuration

D6

D5

5

1

VIN

DC

RSET

GND

10 D1

D2

D3

D4

9

8

7

2

3

4

6

10-Pin 2mm x 2mm Thin MLF

(Top View)

Pin Description

Pin Number

Pin Name

Pin Function

1

VIN

Voltage Input. Connect at least 1µF ceramic capacitor between VIN and GND.

2

DC

Digital control input for linear WLED driver. See Digital Dimming Interface. Do not leave

floating.

3

RSET

An internal 1.27V reference sets the nominal maximum WLED current. Example, apply a 20.5kΩ

resistor between RSET and GND to set LED current to 20mA at 100% duty cycle.

4

GND

Ground.

5

D6

LED6 driver. Connect LED anode to VIN and cathode to this pin.

6

D5

LED5 driver. Connect LED anode to VIN and cathode to this pin.

7

D4

LED4 driver. Connect LED anode to VIN and cathode to this pin.

8

D3

LED3 driver. Connect LED anode to VIN and cathode to this pin.

9

D2

LED2 driver. Connect LED anode to VIN and cathode to this pin.

10

D1

LED1 driver. Connect LED anode to VIN and cathode to this pin.

EPAD

HS PAD

Heat sink pad. Not internally connected. Connect to ground.