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参数资料
型号： SC667ULTRT
厂商： Semtech
文件页数： 39/47页
文件大小： 0K
描述： IC LED DRVR LMU 7CH MLPQUT20
特色产品： Semtech sc667 and sc668
标准包装： 1
拓扑： 线性（LDO），PWM
输出数： 11
内部驱动器： 是
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： SC667ULDKR
SC667
Register Map (continued)
Lighting Effects Assignment Register (0Eh)
This register is used to assign the backlight LEDs to four
banks, bank #1, bank #2, bank #3, and bank #4. This regis-
ter is also used to assign the banks to two groups, group
#1 and group #2. Group #1 and group #2 are assigned
independently to a lighting effect and an effect rate, as
described in the next section, Effect Rate Options.
GRP1 and GRP0 [D4:D3]
These bits are used to assign banks into two groups of
Effect Rate Options (0Fh)
This register is used to set the effects rate for the fade and
breathe effects. Different effect rates may be applied to
group #1 and group #2.
ER2_2, ER2_1, and ER2_0 [D5:D3]
Banks assigned to group #2 will step through settings at
the rate shown in Table 16.
Table 16 — Effect Rates for Group #2
independent lighting effects and effect rates. The group
assignments are shown in Table 14.
ER2_2
ER2_1
ER2_0
Breathe Rate
(ms?step)
Fade Rate
(ms?step)
GRP0
GRP1
0
0
1
1
Table 14 — Lighting Effect Assignments
Bank(s) Assigned Bank(s) Assigned
Group #1 to Group #2
0 #1 #2, #3, and #4
1 #1 and #2 #3 and #4
0 #1, #2, and #3 #4
1 #1,# 2, #3, and #4 no banks assigned
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
snap to target
4
8
16
24
32
48
64
snap to target
1
2
4
6
8
12
16
BANK2, BANK1, and BANK0 [D2:D0]
These bits provide bank assignments for all backlight
LEDs. Backlight bank assignments are shown in Table 15.
The table shows the backlight pins assigned to each of the
ER1_2, ER1_1, and ER1_0 [D2:D0]
Banks assigned to group #1 will step through settings at
the rate shown in table 17.
ER1_1
ER1_0
four banks, as assigned by the data bits BANK2, BANK1,
and BANK0.
Table 15 — Backlight Bank Assignments
ER1_2
Table 17 — Effect Rates for Group #1
Breathe Rate Fade Rate
(ms?step) (ms?step)
Bank
#4
Bank
#3
Bank
#2
Bank
#1
0
0
0
0
0
1
0
1
0
snap to target
4
8
snap to target
1
2
0
0
0
0
1
0
0
1
1
0
0
1
0
1
0
-
-
-
-
-
-
-
-
BL1
-
-
BL1
BL1 - BL2
BL2
BL1 - BL3
BL1 - BL7
BL2 - BL7
BL3 - BL7
BL3 - BL7
BL4 - BL7
0
1
1
1
1
1
0
0
1
1
1
0
1
0
1
16
24
32
48
64
4
6
8
12
16
1
1
1
0
1
1
1
0
1
BL1
BL1
BL1
BL2
BL2
BL2
BL3
BL3 - BL4
BL3 - BL5
BL4 - BL7
BL5 - BL7
BL6 - BL7
39
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相关代理商/技术参数
参数描述
SC668 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:8 LED Light Management Unit Automatic Dropout Prevention , Ambient Light Sense Input, PWM Dimming, and 4 LDOs
SC668EVB 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:8 LED Light Management Unit Automatic Dropout Prevention , Ambient Light Sense Input, PWM Dimming, and 4 LDOs
SC668ULTRT 功能描述:IC LED DRVR LMU 8CH MLPQUT20 RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 特色产品:LM3445 TRIAC Dimmable LED Driver 标准包装:55 系列:PowerWise® 恒定电流:是 恒定电压:- 拓扑:PWM，降压（降压） 输出数:1 内部驱动器:无 类型 - 主要:- 类型 - 次要:高亮度 LED（HBLED） 频率:30kHz ~ 1MHz 电源电压:8 V ~ 12 V 输出电压:- 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOICN 包装:管件 工作温度:-40°C ~ 125°C 产品目录页面:1285 (CN2011-ZH PDF) 其它名称:LM3445M
SC-67 制造商:JIFFY 功能描述:CORRUGATED BOX DW 24X18X18 PK15 制造商:JIFFY 功能描述:CORRUGATED BOX, DW, 24X18X18, PK15
SC6750 制造商:Alltrade Tools LLC 功能描述:COMB. SET
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