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SM8131B00B規(guī)格書詳情
The SM8131B is a charge pump DC/DC converter that switches between ×1and ×1.5 automatically. The SM8131B switches between ×1 and ×1.5 according to detected LED drive current, so that the battery life can be prolonged to the fullest extent. Since the connected LED are all detected for the switching, the SM8131B can respond to the variation of LED forward voltage. 6-channel of LED drive current control circuit is built-in, the SM8131B can control 1 to 6 lights of white LED, which are connected in parallel. The LED drive current per channel is set up by external resistor. Besides, by setting up SEL1/SEL2 pins, 6-channel of LED drive current control circuit can be divided to 2-groups, and input signal controlling of EN1/EN2 pins allow ON/OFF
and dimming per group.
FEATURES
■ Battery life extension by automatic charge pump switch between ×1 and ×1.5 according to the
detection of the LED drive current
■ Controlling 1 to 6 lights of white LED connected in parallel
■ Set up LED drive current value by external resistor (5k?:5mA/ch, 15k?:15mA/ch, 20k?:20mA/ch)
■ Dividing 6-channel to 2-groups by setting up
SEL1/SEL2 pins (L/L = 6:0ch, L/H = 5:1ch,
H/L = 4:2ch, H/H = 3:3ch)
■ 2-wire input controlling (1-wire input controlling when SEL1/SEL2 pins are set to “LOW”)
■ ON/OFF and brightness control by input signal controlling of EN1/EN2 pins
■ Supply voltage range
? No-load current (IOUT= 0mA): 2.7 to 4.6V
? Load current (IOUT= 120mA): 3.3 to 4.6V
■ Maximum output voltage: 4.2V (typ)
■ Maximum output current: 120mA (typ)
■ Quiescent current
? Not-switching (×1 mode): 0.7mA (typ)
? Switching (×1.5 mode): 2.0mA (typ)
■ Standby current (Power save mode): 0.01μA (typ)
■ Operating frequency (×1.5 mode): 750kHz (typ)
■ LED drive current accuracy (RSET = 20k?) :20mA ± 3
■ Input signal frequency for dimming (Duty = 50) :150kHz (max)
■ Package:20-pin QFN
產(chǎn)品屬性
- 型號:
SM8131B00B
- 制造商:
NPC
- 制造商全稱:
Nippon Precision Circuits Inc
- 功能描述:
The SM8131B is a charge pump DC/DC converter that switches between 1 and 1.5 automatically.
供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
---|---|---|---|---|---|---|---|
NPC |
23+ |
QFN |
12800 |
公司只有原裝 歡迎來電咨詢。 |
詢價 | ||
NPC |
2023+ |
QFN |
5800 |
進口原裝,現(xiàn)貨熱賣 |
詢價 | ||
NPC |
23+ |
QFN |
3000 |
全新原裝正品現(xiàn)貨,支持訂貨 |
詢價 | ||
NPC |
22+ |
QFN |
10500 |
只有原裝 低價 實單必成 |
詢價 | ||
NPC |
24+ |
QFN |
6868 |
原裝現(xiàn)貨,可開13%稅票 |
詢價 | ||
NPC |
2315+ |
QFN |
3886 |
優(yōu)勢代理渠道,原裝現(xiàn)貨,可全系列訂貨 |
詢價 | ||
NCP |
06+PB |
QFN |
1034 |
剛到現(xiàn)貨加微13425146986 |
詢價 | ||
NPC |
2016+ |
QFN-20 |
3000 |
只做原裝,假一罰十,公司可開17%增值稅發(fā)票! |
詢價 | ||
只做原裝 |
21+ |
QFN |
36520 |
一級代理/放心采購 |
詢價 | ||
NCP |
2020+ |
QFN |
1034 |
百分百原裝正品 真實公司現(xiàn)貨庫存 本公司只做原裝 可 |
詢價 |