SP6685(2004) Просмотр технического описания (PDF) - Signal Processing Technologies

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SP6685
(Rev.:2004)

Charge Pump LED Driver For Camera Flash

Signal Processing Technologies 

VIN - VOUT ....................................................................... -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

TA = -40°C to +85°C, VIN =3.6, CIN = 4.7µF, CFC = COUT = 1.0µF. VSHDN = VIN, 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 ♦ VIN = 2.7 - 4.3V FLASH = 0V,

Iload = 100µA

µA

MHz

FLASH = VIN, 2x mode

♦ VIN = 4.3V, VEN = 0V

♦

Ω

VFB = 0V, VIN= 3.6V

0.6

0.8

Ω

VIN= 3.6V

142 150 158

45 50

55

mV

♦ FLASH = VIN RSET = 100K

mV ♦ FLASH = GND

FB Pin Current

EN, FLASH Logic Low

EN, FLASH Logic High

EN, FLASH Pin Current

VOUT Turn-on Time

Thermal Shutdown

Temperature

Thermal Hysteresis

0.5

0.4

1.3

0.5

250 500

145

10

µA

♦ VFB = 1V

V

♦

V

♦

µA ♦

µs

♦ VIN = 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

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