参数资料
型号: SC668ULTRT
厂商: Semtech
文件页数: 11/46页
文件大小: 0K
描述: IC LED DRVR LMU 8CH MLPQUT20
特色产品: Semtech sc667 and sc668
标准包装: 1
拓扑: 线性(LDO),PWM
输出数: 12
内部驱动器:
类型 - 主要: 背光,LED 闪烁器,照明管理装置(LMU)
频率: 400kHz
电源电压: 2.9 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 20-UFQFN 裸露焊盘
供应商设备封装: 20-MLPQ(3x3)
包装: 标准包装
工作温度: -40°C ~ 85°C
其它名称: SC668ULDKR
SC668
Pin Descriptions
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
T
Pin Name
LDO1
VIN
GND
BL8
BL7
BL6
BL5
BL4
BL3
BL2
BL1
ADI
SCL
SDA
PWM
EN
BYP
LDO4
LDO3
LDO2
THERMAL PAD
Pin Function
LDO1 output
Battery voltage input
Ground pin
Current sink output for backlight LED 8 — leave this pin open or grounded if unused
Current sink output for backlight LED 7 — leave this pin open or grounded if unused
Current sink output for backlight LED 6 — leave this pin open or grounded if unused
Current sink output for backlight LED 5 — leave this pin open or grounded if unused
Current sink output for backlight LED 4 — leave this pin open or grounded if unused
Current sink output for backlight LED 3 — leave this pin open or grounded if unused
Current sink output for backlight LED 2 — leave this pin open or grounded if unused
Current sink output for backlight LED 1 — leave this pin open or grounded if unused
ADC input — connect this pin to ground if unused
I 2 C clock input — I 2 C buss pull-up resistor is required.
I 2 C data — bi-directional line used for read and write operations for all internal registers (refer to
Register Map and I 2 C Interface sections) — I 2 C buss pull-up resistor is required.
Backlight PWM control signal input
Chip enable — active high
Bypass pin for LDO reference — connect a 22nF ceramic capacitor to GND
LDO4 output
LDO3 output
LDO2 output
Thermal pad for heatsinking purposes — connect to ground plane using multiple vias — not con-
nected internally
11
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