SP6687 Datasheet, PDF (6/12 Pages) Sipex Corporation – 4 Channel Charge Pump White LED Driver

Li-ion
Battery
C_IN
1µF
R_SET
APPLICATION INFORMATION
C1 1µF
C2 1µF
8
7 _VIN ^C1P
1 _EN
2 _CTRL0
3 _CTRL1
4 _CTRL2
5 _ISET
9
C1N
11
C2P
®
SP6687
GND
12
10
C2N
6
V_OUT
LED1 ¹⁶
LED2 ¹⁵
LED3 ¹⁴
LED4 ¹³
C_OUT
1µF
Typical Application Circuit for 2-White LEDs
Control Inputs
CTRL2
CTRL1
CTRL0
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
LED4
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
Table 1. Typical application circuit for PWM dimming
using a DC voltage into I_SET.
Output Status
LED3
LED2
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
OFF
OFF
LED1
ON
OFF
OFF
OFF
ON
ON
ON
OFF
Date: 11/15/05
SP6687 4Channel Charge Pump White LED Driver
6
© Copyright 2005 Sipex Corporation