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參數(shù)資料
| 型號： | SC614MLTRT |
| 廠商： | Semtech Corporation |
| 英文描述： | Low Noise Backlight and Flash Driver With Serial Interface |
| 中文描述： | 低噪聲背光和閃光串行接口驅(qū)動程序 |
| 文件頁數(shù)： | 19/25頁 |
| 文件大?。?/td> | 395K |
| 代理商： | SC614MLTRT |
2006 Semtech Corp.
POWER MANAGEMENT
Application Examples (Cont.)
SC614
United States Patent No. 6,504,422
www.semtech.com
19
Main Backlight Plus RGB Indicator
D1
LED
C2
1u
D2
LED
D3
LED
D4
LED
D5
RGB_LED
C1
2u2
C3 1u
C4 1u
VIN
11
VIN
17
EN
2
SDA
7
SCL
8
ASEL
5
SDIM
3
MDIM
4
FL
6
VOUT
9
VOUT
16
M1
1
M2
24
M3
23
M4
22
S1/FL3
20
S2/FL2
19
S3/FL1
18
GND
12
GND
21
T
C
1
C
1
C
1
C
1
U1
SC614
SDA
EN
SDIM
SCL
FL
MDIM
VBAT
R1
Pull-up
VLOGIC
R2
Pull-up
Note: R1 and R2
pull-up resistors are a
requirement of the I2C
specification
MAIN BACKLIGHT
RGB INDICATOR
102mA Max
102mA Max
102mA Max
102mA Max
328mA Max Continuous
434mA Max (500ms)
102mA Max
102mA Max
102mA Max
Features:
Up to 4 LED main backlight with up to 32mA per LED
PWM dimming of backlight using MDIM pin
3 current sinks for RGB with up to 32mA per LED
Dimming and color rotation of RGB over I
2
C interface
Register Settings (20mA backlight currents and as required on the fly RGB current used as an example):
0x00: set to 0x7F to enable all 7 current sinks for use
0x01 through 0x04: set to 0x32 for 20mA per current sink
0x05 through 0x07: set to as required on the fly for each color
0x08: set to 0x00 for Flash Mode disabled (FL pin inactive) and 250kHz charge pump frequency
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