Jun29-07 RevD

SP7120/22 Low Dropout LED Driver

© 2007 Sipex Corporation

page

2

ABSOLUTE MAXIMUM RATINGS

These are stress ratings only and functional operation

of the device at these ratings or any other above

those indicated in the operation sections of the

specifications below is not implied. Exposure to

absolute maximum rating conditions for extended

period may affect reliability.

Ambient operating temperature ..…. -40 to+85°C

-0.3V to 6V

Junction Temperature............................+150°C

Operating Temperature…..........….-40 to +85

Storage Temperature...............-65°C to +150°C

ESD Level...........................................2kV HBM

ESD Level...........................................200V MM

ESD Level EN……………….……….1.5kV HBM

Lead Temperature (Soldering, 10 sec) …300°C

ELECTRICAL CHARACTERISTICS

Parameter

Min

Typ

Max

Units

Conditions

Vcc

2.7

5.5

V

Shutdown Current

0.04

1

µA

EN = LOW

VLED Dropout Voltage, Vd

1

160

200

mV

VLED Dropout voltage, Vd

1

140

180

mV

Version A

15

Version B

20

LED Current per

Channel

Version C

25

mA

= 300mV

Version A

0.5

0.7

Version B

0.7

1.1

Version C

0.86

1.7

Version A

0.6

0.8

Version B

0.9

1.2

Quiescent

Current

Version C

0.99

1.9

mA

LED to LED Current Matching

6

0.8

%

LED Current Accuracy

2

-3

3

%

LED Current Line Regulation

3

.25

%/V

2.7V < Vcc < 5.5V

LED Current Load Regulation

4

1.0

%/mA

LED Current Thermal Regulation

0.01

%/

EN ON Voltage (HIGH)

5

2

Vcc

V

EN OFF Voltage (LOW)

0

0.8

V

EN Input Bias Current

2

3

5

µA

EN Switching Frequency

20

kHz

EN ON Minimum Pulse Width

15

µs

5) EN input voltage should not exceed Vcc voltage at any condition

6) This condition is part of the LED current accuracy and it shall not exceed that specification

RECOMMENDED OPERATING CONDITIONS