SP6682 Просмотр технического описания (PDF) - Signal Processing Technologies
Номер в каталоге
Компоненты Описание
производитель
SP6682 Datasheet PDF : 12 Pages
| |||
CAMERA FLASH
APPLICATION
Vin: 3.0-4.2V
C1
2.2uF
R3
1.0M
TYPICAL APPLICATION SCHEMATIC
Iout=200mA for 1W LED
SP6682
1
Vout
10
C2P
2
C1P
9
C1N
3
Vin
8
GND
4
Vmode
7
C2N
5
FB
6
EN/PWM
C4
2.2uF
C5
2.2uF
LEDA
1W LED
LEDK
VFB=300mV
Rfb
1.5 Ohm
ENABLE/PWM
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
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
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.
PARAMETER
MIN TYP MAX UNITS
CONDITIONS
Input Voltage
Quiescent Current
Shutdown Current
Oscillator Frequency
VFB Reference Voltage
Charge Pump Output
Resistance
VMODE Threshold Voltage
Hysteresis for Mode Transition
Voltage
VMODE Pin Current
EN/PWM Logic Low
2.7
0.42
0.275
1.15
1.2
0.60
0.306
11
1.25
30
0.01
5.5
3
1.5
0.78
0.337
18
1.35
0.5
0.4
V
mA
µA
MHz
V
��
V
mVPP
µA
V
VIN = 4.2V, VOUT = 3.6V, IOUT = 100µA
EN/PWM = 0.0V, VIN = 5.5V
VIN = 3.6V
FB = 0.0V, VIN = 3.6V,
IOUT = 20mA, VMODE = High
VIN Falling @ 25°C
VIN = 3.6V @ 25°C
VMODE = 1.25
EN/PWM Logic High
EN/PWM Pin Current
FB Pin Current
VOUT Turn-On Time
1.6
0.01 0.5
0.5
175 500
V
µA VEN/PWM = 4.2V
µA VFB = 1V
µs VIN = 3.6V, FB within 90% regulation
Date: 7/19/06 Rev D
SP6682 High Efficiency Charge Pump Regulator for White LEDs
2
© 2006 Sipex Corporation
Share Link: 