ATS278, ATS278-PL, ATS278-PL-A Selling Leads, Datasheet
MFG:ATC D/C:1000
ATS278, ATS278-PL, ATS278-PL-A Datasheet download
Part Number: ATS278
MFG: ATC
Package Cooled:
D/C: 1000
ATS278, ATS278-PL, ATS278-PL-A
- Table of contents:
Info of ATS278
Info of ATS278-PL
Info of ATS278-PL-A
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About ATS278
PDF/DataSheet Download
Datasheet: ATS278
File Size: 215475 KB
Manufacturer: ANACHIP [Anachip Corp]
Download : Click here to Download
About ATS278-PL-A
PDF/DataSheet Download
Datasheet: ATS278-PL-A
File Size: 215475 KB
Manufacturer: ANACHIP [Anachip Corp]
Download : Click here to Download
About ATS278-PL-A
PDF/DataSheet Download
Datasheet: ATS278-PL-A
File Size: 215475 KB
Manufacturer: ANACHIP [Anachip Corp]
Download : Click here to Download
ATS278 General Description
ATS278 is an integrated Hall sensor with two output drivers and rotor speed output, typically designed for electronic commutation of two-phase brush-less
DC fan applications.
On-chip Hall sensor will generate Hall voltage due to magnetics sensing. The amplifier will amplify the Hall voltage. The Schmitt trigger determines switching hysteresis and then control internal driver's on/off to sink load current. Meanwhile, An internal bandgap regulator is used to provide stable bais due to temperature-compensation. FG pin will provide switching frequency of driver. Major feature is to minimize the external components by building-in FG output transistor.
If a magnetic flux density larger than threshold Bop, DO is turned on (low) and DOB is turned off (high). The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off and DOB turned on.
ATS278 Maximum Ratings
|
Characteristics |
Symbol |
Values |
Unit | |
| Supply voltage |
VCC |
20 |
V | |
| Reverse VCC Polarity Voltage |
VRCC |
-20 |
V | |
| Magnetic flux density |
B |
Unlimited | ||
| Output "on" current | Continuous |
Ic |
0.4 |
A |
| Hold |
0.5 | |||
| Peak (Start Up) |
0.7 | |||
| Sink current of FG |
IFG |
40 |
mA | |
| Storage temperature range |
Ta |
-20~+85 |
°C | |
| Storage temperature range |
Ts |
-65~+150 |
°C | |
| Package Power Dissipation |
PD |
550 |
mW | |
ATS278 Features
- On-chip Hall plate
- Operating voltage: 3.5V~20V
- Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range
- High output sinking capability up to 400mA for driving large load
- Built-in protection diode only for chip reverse power connecting
- Frequency Generation (FG) output
- Package: SIP-5L
- Operating voltage: 3.5V~20V
- Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range
- High output sinking capability up to 400mA for driving large load
- Built-in protection diode only for chip reverse power connecting
- Frequency Generation (FG) output
- Package: SIP-5L
ATS278 Typical Application
- Dual-coil Brush-less DC Motor
- Dual-coil Brush-less DC Fan
- Revolution Counting
- Speed Measurement
- Dual-coil Brush-less DC Fan
- Revolution Counting
- Speed Measurement
ATS278 Connection Diagram
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