ATS471, ATS-471, ATS477 Selling Leads, Datasheet
MFG:ATECH Package Cooled:08+ D/C:SOP
ATS471, ATS-471, ATS477 Datasheet download
Part Number: ATS471
MFG: ATECH
Package Cooled: 08+
D/C: SOP
ATS471, ATS-471, ATS477
- Table of contents:
Info of ATS471
Info of ATS-471
Info of ATS477
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About ATS137
PDF/DataSheet Download
Datasheet: ATS137
File Size: 207456 KB
Manufacturer: ANACHIP [Anachip Corp]
Download : Click here to Download
About ATS137
PDF/DataSheet Download
Datasheet: ATS137
File Size: 207456 KB
Manufacturer: ANACHIP [Anachip Corp]
Download : Click here to Download
About ATS477
PDF/DataSheet Download
Datasheet: ATS477
File Size: 201222 KB
Manufacturer: ANACHIP [Anachip Corp]
Download : Click here to Download
ATS477 General Description
ATS477 that integrates Hall sensor with output drivers is designed for electrical commutation of brush-less DC motor application. The device includes on-chip Hall voltage generator for magnetic sensing, the error amplifier that amplifies the Hall voltage, a comparator that is to provide switching hysteresis for noise rejection, the bi-direction drivers for sinking and driving large current load, and the frequency generator (FG) that provides a signal proportional to rotation speed. Internal bandgap regulator is used to provide temperature compensated bias for internal circuits and allows a wide operating supply voltage range. Built-in protection circuit and output shunt Zener diodes were applied for protecting output drivers during operating.
If a magnetic flux density is larger than threshold Bop, DO is turned to sink and DOB is turned to drive. The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned to drive and DOB turned to sink.
ATS477 is rated for operation over-temperature range from -20 to 85 and voltage range from 3.5V to 20V. The devices are available in low cost die forms or rugged SIP-4L and power SOP-7L packages.
ATS477 Maximum Ratings
|
Characteristics |
Symbol |
Values |
Unit | |
| Supply voltage |
VCC |
20 |
V | |
| Magnetic flux density |
B |
Unlimited | ||
| Output "on" current | Continuous |
Ic |
250 |
mA |
| Hold |
300 | |||
| Peak (Start Up) |
600 | |||
| Operating temperature range |
Ta |
-20~+85 |
°C | |
| Storage temperature range |
Ts |
-65~+150 |
°C | |
| Package Power | SIP-4L |
PD |
550 |
mW |
| Dissipation | SOP-7L |
800 |
mW (Note 1) | |
ATS477 Features
- On-chip Hall sensor
- Bi-direction H type output drivers for single coil
- Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range
- High output sinking capability up to 250mA
- Operating voltage: 3.5V~20V
- Low output switching current noise
- Build-in shunt Zener protection for output driver
- SOP-7L provide FG output pin
- Package: SIP-4L and SOP-7L
- Bi-direction H type output drivers for single coil
- Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range
- High output sinking capability up to 250mA
- Operating voltage: 3.5V~20V
- Low output switching current noise
- Build-in shunt Zener protection for output driver
- SOP-7L provide FG output pin
- Package: SIP-4L and SOP-7L
ATS477 Typical Application
- Single-coil Brush-less DC Fan
- Single-coil Brush-less DC Motor
- Single-coil Brush-less DC Motor
ATS477 Connection Diagram
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