MA278中文资料PDF规格书
MA278规格书详情
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 )
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
PANASONIC/松下 |
22+ |
SSSMini2-F4-B |
354000 |
询价 | |||
PANASONIC/松下 |
2022 |
SOD-723 |
80000 |
原装现货,OEM渠道,欢迎咨询 |
询价 | ||
ST |
DIP32 |
93480 |
集团化配单-有更多数量-免费送样-原包装正品现货-正规 |
询价 | |||
DENSO |
23+ |
dip |
4500 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
Panasonic |
2020+ |
SSSMini2-F4-B |
18800 |
绝对原装进口现货,假一赔十,价格优势! |
询价 | ||
DENSO |
23+ |
dip |
2870 |
绝对全新原装!现货!特价!请放心订购! |
询价 | ||
PAN |
1535+ |
1410 |
询价 | ||||
Panasonic |
20+ |
SSSMini2-F4-B |
36800 |
原装优势主营型号-可开原型号增税票 |
询价 | ||
DENSO |
00+ |
dip |
14 |
询价 | |||
MAT |
2020+ |
DO-35 |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 |