SP6685 Datasheet, PDF (2/10 Pages) Sipex Corporation – Charge Pump LED Driver For Camera Flash

V_IN - V_OUT ....................................................................... -0.3V to 6V
Output Current Pulse (Flash) ................................. 1A
Output Current Continuous (Torch) ..................... 0.4A
Storage Temperature ...................... -65°C to +150°C
Operating Temperature ..................... -40°C to +85°C
EN ................................................................ 0V to 7V
ESD. ........................................................... 2kV HBM
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 periods of time may affect
reliability.
ELECTRICAL CHARACTERISTICS
T_A = -40°C to +85°C, V_IN =3.6, C_IN = 4.7µF, C_FC = C_OUT = 1.0µF. V_SHDN = V_IN, typical values at 25°C. The ♦ denotes the
specifications which apply over the full operating range unless otherwise noted.
PARAMETER
Operating Input Voltage
Quiescent Current
Shutdown Current
Oscillator Frequency
Charge Pump Equivalent
Resistance (x2 mode)
Charge Pump Equivalent
Resistance (x1 mode)
FB Reference Voltage
FB Reference Voltage
MIN. TYP.
2.7
0.5
2
2.4
5
MAX.
4.3
2
1
UNITS
CONDITIONS
V
♦
mA ♦ V_IN = 2.7 - 4.3V FLASH = 0V,
Iload = 100µA
µA
MHz
FLASH = V_IN, 2x mode
♦ V_IN = 4.3V, V_EN = 0V
♦
Ω
V_FB = 0V, V_IN= 3.6V
0.6
0.8
Ω
V_IN= 3.6V
142 150 158
45 50
55
mV
♦ FLASH = V_IN R_SET = 100K
mV ♦ FLASH = GND
FB Pin Current
EN, FLASH Logic Low
EN, FLASH Logic High
EN, FLASH Pin Current
V_OUT Turn-on Time
Thermal Shutdown
Temperature
Thermal Hysteresis
0.5
0.4
1.3
0.5
250 500
145
10
µA
♦ V_FB = 1V
V
♦
V
♦
µA ♦
µs
♦ V_IN = 3.6V, FB within 90% of
regulation
ºC
ºC
Date: 12/15/04
SP6685 Charge Pump LED Driver for Camera Flash
2
© Copyright 2004 Sipex Corporation