AH276Q：双相输出
| Part Number | Data Sheet | SPICE Model | Operating Voltage (V) | Average Supply Current (mA) | Output Current Capability (mA) | Grade | Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Min) | Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Typ) | Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Max) | Release Point Brp (Brps +ve/Brpn -ve) Gauss (Min) | Release Point Brp (Brps +ve/Brpn -ve) Gauss (Typ) | Release Point Brp (Brps +ve/Brpn -ve) Gauss (Max) | Operating Ambient Temperature (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AH276Q | AH276Q.pdf | - | 3.5 to 20 | 16 | 400mA 700m(Peak) | A B C | 10 5 | - | 100 50 70 | -100 -50 -70 | - | -10 -5 | -20 to +85 |
Description
AH276 are integrated Hall sensors with output drivers, mainly designed for electronic commutation of brush-less DC Fan. This IC internally includes the regulator, protecting diode, Hall plate, amplifier, comparator, and a pair of complementary open-collector 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.
Application
- Dual-coil Brush-less DC Motor
- Dual-coil Brush-less DC Fan
- Revolution Counting
- Speed Measurement
Features
- On-chip Hall sensor with two different sensitivity and hysteresis settings for AH276
- Built-in protecting diode only for chip reverse power connecting
- -20°C to +85°C operating temperature
- Lead Free Package: SIP-4L
- SIP-4L: Available in “Green” Molding Compound (No Br, Sb)
- Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
- Halogen and Antimony Free. “Green” Device
SIP-4
- AH276Q.pdf AH276Q
