參數(shù)資料
型號(hào): SP6682UEB
英文描述: Evaluation Board Manual
中文描述: 評(píng)估板手冊(cè)
文件頁(yè)數(shù): 3/12頁(yè)
文件大小: 190K
代理商: SP6682UEB
3
Date: 5/5/04
SP6682 High Efficiency Charge Pump Regulator for White LEDs Copyright 2004 Sipex Corporation
V
OUT
306m
EN/PW
1.25V
C2N
Start-up
and
Charge
Pump
Switches
V
MODE
C2P
C1P
FB
Mode Control
GND
V
IN
C1N
600 kHz
Clock
Manager
Voltage
Referenc
MODE
COMP
V
COMP
FUNCTIONAL DIAGRAM
PIN DESCRIPTION
PIN NUMBER
PIN NAME
DESCRIPTION
1
V
OUT
Regulated charge pump output.
2
C1P
Positive terminal to the charge pump flying capacitor C2.
3
V
IN
Input pin for the 2.7V to 5.5V supply voltage.
4
V
MODE
Charge pump mode program pin. When V
MODE
is greater than 1.25V,
X1.5 charge pump is used. Otherwise, charge pump switches to X2
mode. A voltage divider shown in typical application circuit programs
the V
IN
threshold for charge pump mode switching.
5
FB
This is the feedback pin for output current or voltage regulation. The
voltage of this pin is compared with an internal 306mV reference.
6
EN/PWM
Enable and PWM dimming control input. Pull this pin low to discon-
nect V
OUT
from V
IN
and shutdown the SP6682.
7
C2N
Negative terminal to the charge pump flying capacitor, C4.
8
GND
Ground reference.
9
C1N
Negative terminal to the charge pump flying capacitor, C2.
10
C2P
Positive terminal to the charge pump flying capacitor C4.
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