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SP6682 Scheda tecnica(PDF) 2 Page - Sipex Corporation

Il numero della parte SP6682
Spiegazioni elettronici  High Efficiency Charge Pump Regulator for White LEDs
PDF  12 Pages
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Produttore elettronici  SIPEX [Sipex Corporation]
Homepage  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SP6682 Scheda tecnica(HTML) 2 Page - Sipex Corporation

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Date: 7/1
9/06 Rev D
SP6682 High Efficiency Charge Pump Regulator for White LEDs
© 2006 Sipex Corporation
PARAMETER
MIN
TYP
MAX UNITS
CONDITIONS
Input Voltage
2.7
5.5
V
Quiescent Current
1.2
3
mA
VIN = 4.2V, VOUT = 3.6V, IOUT = 100µA
Shutdown Current
1.5
µ
A
EN/PWM = 0.0V, VIN = 5.5V
Oscillator Frequency
0.42
0.60
0.78
MHz
VIN = 3.6V
VFB Reference Voltage
0.275
0.306
0.337
V
Charge Pump Output
11
18
��
FB = 0.0V, VIN = 3.6V,
Resistance
IOUT = 20mA, VMODE = High
VMODE Threshold Voltage
1.15
1.25
1.35
V
VIN Falling @ 25°C
Hysteresis for Mode Transition
30
mVPP VIN = 3.6V @ 25°C
Voltage
VMODE Pin Current
0.01
0.5
µ
A
VMODE = 1.25
EN/PWM Logic Low
0.4
V
EN/PWM Logic High
1.6
V
EN/PWM Pin Current
0.01
0.5
µ
A
VEN/PWM = 4.2V
FB Pin Current
0.5
µ
A
VFB = 1V
VOUT Turn-On Time
175
500
µ
s
VIN = 3.6V, FB within 90% regulation
ELECTRICAL CHARACTERISTICS
Unless otherwise specified: VIN =+2.7V to +5.0V, C1=C2=C4=C5=2.2µF (ceramic, ESR=0.03�), C3=0.1µF
(ceramic) and TAMB =-40°C to +85°C unless otherwise noted.
VIN, VMODE, VOUT and EN/PWM.................-0.3V to 6V
VIN - VOUT ........................................................... 0.7V
Output Current (IOUT) ...................................... 300mA
Power Dissipation per Package - 10-pin MSOP
(derate 8.84mW/°C above +70°C) ................. 720mW
Junction Temperature .................................... +125°C
Storage Temperature ...................... -65°C to +150°C
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
TYPICAL APPLICATION SCHEMATIC
CAMERA FLASH
APPLICATION
Rfb
1.5 Ohm
Iout=200mA for 1W LED
ENABLE/PWM
LEDA
C4
2.2uF
1W LED
C5
2.2uF
SP6682
Vout
1
C1P
2
C2N
7
EN/PWM
6
FB
5
Vmode
4
Vin
3
GND
8
C1N
9
C2P
10
Vin: 3.0-4.2V
C1
2.2uF
R3
1.0M
LEDK
VFB=300mV



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