MA278中文資料久昌科技數(shù)據(jù)手冊PDF規(guī)格書
MA278規(guī)格書詳情
GENERAL DESCRIPTION
MA278 are integrated Hall sensors with output drivers, mainly designed for electronic
commutation of brush-less DC Fan. This IC is using HV BCD process internally includes the
regulator, protecting diode, Hall plate, amplifier, comparator, and a pair of complementary
open-Drain outputs (DO, DOB).
While the magnetic flux density (B) is larger than operate point (Bop), DO will turn on
(low), and meanwhile DOB will turn off (high). Each output is latched until B is lower than
release point (Brp), and then DO, DOB transfer each state. For DC fan application,
sometimes need to test power reverse connection condition. Internal diode only protects
chip-side but not for coil-side. If necessary, add one external diode to block the reverse
current from coil-side.
? FEATURES
- On-chip Hall effect sensor with two different sensitivity and hysteresis settings
- Wide operating voltage range: 4.0V~20V
- Output sink current up to 0.4A
- -40°C to 85°C operating temperature
- Low Profile SIP-4L Packages( Green and Lead Free )
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
PANASONIC |
2019+PBHF |
SOD723 |
7318 |
向鴻代理渠道,有現(xiàn)貨常備料,優(yōu)勢料 |
詢價(jià) | ||
PANASON/松下 |
23+ |
NA/ |
16750 |
原裝現(xiàn)貨,當(dāng)天可交貨,原型號(hào)開票 |
詢價(jià) | ||
MAT |
23+ |
DO-35 |
8560 |
受權(quán)代理!全新原裝現(xiàn)貨特價(jià)熱賣! |
詢價(jià) | ||
PANASONIC |
2016+ |
SOT723 |
5562 |
只做進(jìn)口原裝現(xiàn)貨!或訂貨!假一賠十! |
詢價(jià) | ||
PANASON |
21+ |
42664 |
12588 |
全新原裝深圳現(xiàn)貨 |
詢價(jià) | ||
MAT |
2020+ |
DO-35 |
80000 |
只做自己庫存,全新原裝進(jìn)口正品假一賠百,可開13%增 |
詢價(jià) | ||
Panasonic |
20+ |
SSSMini2-F4-B |
36800 |
原裝優(yōu)勢主營型號(hào)-可開原型號(hào)增稅票 |
詢價(jià) | ||
MA |
23+ |
ZIP9 |
13000 |
原廠授權(quán)一級(jí)代理,專業(yè)海外優(yōu)勢訂貨,價(jià)格優(yōu)勢、品種 |
詢價(jià) | ||
ST |
DIP32 |
93480 |
集團(tuán)化配單-有更多數(shù)量-免費(fèi)送樣-原包裝正品現(xiàn)貨-正規(guī) |
詢價(jià) | |||
PANASONIC/松下 |
23+ |
SOD-723 |
50000 |
全新原裝正品現(xiàn)貨,支持訂貨 |
詢價(jià) |
