5

Thermal Information

Parameter

Package

Symbol

Maximum

Unit

QFN 3x3-16L

35

MSOP-8L

180

SOT23-8

250

Thermal Resistance (Junction to Ambient)

DFN2X2-8L

80

°C/W

QFN 3x3-16L

14

MSOP-8L

75

SOT23-8

130

Thermal Resistance (Junction to Case)

DFN2X2-8L

θ

JC

20

°C/W

,

Power Analog Microelectronics Inc

www.poweranalog.com

Absolute Maximum Ratings

These are stress ratings only and functional operation is not implied

Exposure to absolute

maximum ratings for prolonged time periods may affect device reliability

All voltages are with

respect to ground

.

.

.

Input Voltage Range............................-0.3V to 6V

PWM Pin voltage.................

Storage Temperature.....................-65

to 150

Soldering Temperature.......................

-0.3V to (V +0.3V)/6V

Maximum Junction Temperature..................150°C

°C

°C

300°C,5sec

IN

Recommended Operating Conditions

Input Voltage Range..........................

Ambient Temperature Range............-40

to 85

2.7V to 5.5V

Junction Temperature Range..........-40°C to 125°C

°C

°C

Electrical Characteristic

T =25

, V =3.6V, unless otherwise noted.

AIN

°C

PARAMETER

Symbol

CONDITIONS

MIN

TYP

MAX

UNITS

Input Voltage

2.7

5.5

V

Output Current

All LEDs 100% setting

18

20

22

mA

Current Matching

All LEDs 100% setting

-3

+3

%

LED Dropout Voltage

60

mV

Quiescent Current

270

μA

Shutdown Current

0.1

1

μA

Startup Time

30

μs

EN Input Logic High

1.5

V

EN Input Logic Low

0.4

V

EN Low Time for Dimming

0.5

500

μs

EN High Time for Dimming

0.5

μs

Shutdown Delay Time

1000

2000

μs

Thermal Shutdown Temperature

150

℃

Hysteresis Temperature

30

℃

PAM2811

4-Channel Single-Wire Dimming LED Drive with

Ultra Low Dropout Current Sink

03/2010 Rev1.0