2
Date: 6/20/06 Rev T SP7685, 1.2A Buck/BoostCharge Pump LED Driver © 2006 Sipex Corporation
ELECTRICAL CHARACTERISTICS
T
A
= -40°C to +85°C, V
IN
=3.6V, C
IN
= 10μF, C
FC
=1.0μF, C
OUT
=10μF. V
SHDN
= V
IN,
typical values at 25°C. The
♦ denotes the specifications which apply over the full operating temperature range unless otherwise noted.
V
IN
, V
OUT
.......................................................................
-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
EN
............................................................ 0.0V to 7V
3x3 10 DFN .........................................O
JA
= 40.5°C/W
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
IN
= 2.7 - 5.5V FLASH = GND,
1X Mode, I
LOAD
= 100μA
2 FLASH = High, 2x mode
Shutdown Current 2 μA V
IN
= 5.5V, V
EN
= 0.0V
Oscillator Frequency 2.4 MHz
Charge Pump Equivalent
Resistance (x2 mode)
4ΩV
FB
= 0.0V, V
IN
= 3.6V
Charge Pump Equivalent
Resistance (x1 mode)
0.4 0.7 Ω V
IN
= 3.6V
FB Reference Voltage
45 50 55 mV ♦♦
♦♦
FLASH = GND
138 150 162 mV ♦♦
♦♦
FLASH = High, R
SET
= 53.6kΩ
.
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
o
C
Maximum Flash ON time 1.6 2.6 3.6 s
♦♦
♦♦
FLASH = High
