SM8135A中文資料NPC數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)
| 廠(chǎng)商型號(hào) |
SM8135A |
| 功能描述 | White LED Driver IC |
| 文件大小 |
157.25 Kbytes |
| 頁(yè)面數(shù)量 |
20 頁(yè) |
| 生產(chǎn)廠(chǎng)商 | Nippon Precision Circuits Inc |
| 企業(yè)簡(jiǎn)稱(chēng) |
NPC |
| 中文名稱(chēng) | Nippon Precision Circuits Inc官網(wǎng) |
| 原廠(chǎng)標(biāo)識(shí) |  |
| 數(shù)據(jù)手冊(cè) | |
| 更新時(shí)間 | 2025-3-9 20:00:00 |
| 人工找貨 | SM8135A價(jià)格和庫(kù)存，歡迎聯(lián)系客服免費(fèi)人工找貨 |
SM8135A規(guī)格書(shū)詳情
OVERVIEW
The SM8135A is a charge pump type white LED driver. It can drive 1 to 4 backlight white LED connected in parallel, making it ideal for portable devices with small LCD. The charge pump switches between ×1 bypass mode, ×1.5 and ×2 boost mode in response to LED drive current requirements. The boost switching occurs in response to the drive current of all the connected LED and thus supports variations in LED forward-bias volt age drop (VF). Besides, the detection of switching is repeated in approx. 1sec-cycle by mode reset action, the SM8135A can respond to temporary variation of supply voltage. These ingenuities on switching detection can prolong the battery life to the fullest extent. Each LED drive current is controlled by a 4-channel LED drive
current control circuit. The LED drive current per channel is setup by external resistor. Moreover, the PWM signal control of EN pin can realize nonstep brightness control (10 to 100). The IC ON/OFF is controlled by EN pin.
FEATURES
■ Battery life extension by automatic charge pump switch between ×1, ×1.5 and ×2 according to the detection of the LED drive current
■ Controlling 1 to 4 lights of white LED connected in parallel
■ Set up LED drive current value by external resistor (120k?: 20mA/ch)
■ 1-wire input controlling
■ ON/OFF and brightness control by PWM signal controlling of EN pin (10 to 100)
■ Soft start circuit built-in
■ Thermal shut down circuit built-in
■ Input voltage range
No-load current (IOUT= 0mA): 2.7 to 4.6V
Load current (IOUT= 80mA): 3.0 to 4.6V
■ Maximum output voltage: 4.9V (typ)
■ Maximum output current: 80mA (typ)
■ Quiescent current
Not-switching (×1 mode): 0.3mA (typ)
Switching (×1.5 mode): 1.5mA (typ)
Switching (×2 mode): 1.5mA (typ)
■ Standby current: 0.01μA (typ)
■ Operating frequency: 1MHz (typ)
■ LED drive current accuracy between channel
(REST = 120k?): ± 5 (max)
■ Package: 16-pin QFN
APPLICATIONS
■ Cellular phone
■ PDA
■ Portable games
■ Handy terminal
■ Digital still camera
■ Digital video camera
■ LCD panel back light
■ White LED driving
產(chǎn)品屬性
- 型號(hào)：
SM8135A
- 制造商：
NPC
- 制造商全稱(chēng)：
Nippon Precision Circuits Inc
- 功能描述：
White LED Driver IC
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
NPC |
23+ |
NA/ |
9250 |
原廠(chǎng)直銷(xiāo),現(xiàn)貨供應(yīng),賬期支持! |
詢(xún)價(jià) | ||
只做原裝 |
24+ |
QFN |
36520 |
一級(jí)代理/放心采購(gòu) |
詢(xún)價(jià) | ||
SEIKO |
23+ |
QFN |
12000 |
原裝正品現(xiàn)貨 |
詢(xún)價(jià) | ||
NPC |
23+ |
SOP14 |
4500 |
全新原裝、誠(chéng)信經(jīng)營(yíng)、公司現(xiàn)貨銷(xiāo)售! |
詢(xún)價(jià) | ||
NPC |
24+ |
QFN |
56000 |
公司進(jìn)口原裝現(xiàn)貨 批量特價(jià)支持 |
詢(xún)價(jià) | ||
NPC |
24+ |
SOP14 |
663 |
詢(xún)價(jià) | |||
SEIKO/精工 |
23+ |
QFN |
7000 |
詢(xún)價(jià) | |||
NPC |
2447 |
QFN |
100500 |
一級(jí)代理專(zhuān)營(yíng)品牌!原裝正品,優(yōu)勢(shì)現(xiàn)貨,長(zhǎng)期排單到貨 |
詢(xún)價(jià) | ||
NPC |
09+ |
QFN |
23400 |
一級(jí)代理,專(zhuān)注軍工、汽車(chē)、醫(yī)療、工業(yè)、新能源、電力 |
詢(xún)價(jià) | ||
NPC |
24+ |
SOP14 |
6232 |
公司原廠(chǎng)原裝現(xiàn)貨假一罰十!特價(jià)出售!強(qiáng)勢(shì)庫(kù)存! |
詢(xún)價(jià) |
