2

Date: 6/20/06 Rev T

SP7685, 1.2A Buck/BoostCharge Pump LED Driver

© 2006 Sipex Corporation

ELECTRICAL CHARACTERISTICS

♦ denotes the specifications which apply over the full operating temperature range unless otherwise noted.

V

.......................................................................

-0.3V to 6V

Output Current Pulse (Flash) ................................. 2A

Output Current Continuous (Torch) ..................... 0.4A

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

Operating Temperature ..................... -40°C to +85°C

V

3x3 10 DFN .........................................O

ESD Rating. ................................................ 2kV HBM

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 periods of time may affect

reliability.

ABSOLUTE MAXIMUM RATINGS

PARAMETER

MIN.

TYP.

MAX.

UNITS

CONDITIONS

Operating Input Voltage

2.7

5.5

V

♦

♦

♦

♦

Quiescent Current

0.5

3

mA

♦

♦

♦

♦

V

1X Mode, I

LOAD

= 100μA

2

FLASH = High, 2x mode

Shutdown Current

2

μA

V

IN

Oscillator Frequency

2.4

MHz

Charge Pump Equivalent

Resistance (x2 mode)

4Ω

V

FB

= 0.0V, V

IN

= 3.6V

Charge Pump Equivalent

Resistance (x1 mode)

0.4

0.7

Ω

V

FB Reference Voltage

45

50

55

mV

♦

♦

♦

♦

FLASH = GND

138

150

162

mV

♦

♦

♦

♦

FLASH = High, R

SET

FB Reference Voltage Range

100

400

mV

♦

♦

♦

♦

FLASH = High. Guaranteed by design.

FB Pin Current

0.5

μA

V

FB

= 0.3V

EN, FLASH Logic Low

0.4

V

♦

♦

♦

♦

EN, FLASH Logic High

1.3

V

♦

♦

♦

♦

EN, FLASH Pin Current

0.5

μA

♦

♦

♦

♦

V

OUT

Turn-on Time

170

500

μs

♦

♦

♦

♦

V

IN

= 3.6V, FB within 90% of

regulation

Thermal Shutdown

Temperature

145

Maximum Flash ON time

1.6

2.6

3.6

s

♦

♦

♦

♦

FLASH = High