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AH3713A

27V Resistive Pull-Up Hall Effect Latch

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Description

The AH3713/AH3713A/AH3714/AH3714A/AH3715/AH3716/AH3717 is a high-voltage Hall-effect latch IC designed for commutation of brushless DC motors, flow meters, linear encoders, and position sensors in industrial and consumer home appliances and personal care applications. To support a wide range of demanding applications, the design is optimized to operate over the supply range of 3.0V to 27V. With chopper-stabilized architecture and an internal bandgap regulator to provide temperature compensated supply for internal circuits, the device provides a reliable solution over the whole operating range. The output has an overcurrent limit.

The single open-drain output can be switched on with South pole of sufficient strength and switched off with North pole of sufficient strength. When the magnetic-flux density (B) perpendicular to the package is larger than the operate point (B_OP), the output is switched on (pulled low). The output is held latched until magnetic-flux density reverses and becomes lower than the release point (B_RP).

Feature(s)

Bipolar Latch (South Pole: On, North Pole: Off)
0V to 27V Operating Voltage Range
40V Load Dump Protection
Sensitivity Options: B_OP and B_RP of ±30G to ±140G Typical
Resistant to Physical Stress
Single, Open-Drain or Internal Pullup Output with Overcurrent Limit
Chopper-Stabilized Design Provides
- Superior Temperature Stability
- Minimal Switch-Point Drift
- Enhanced Immunity to Stress
Good RF Noise Immunity
-40°C to +125°C Operating Temperature
ESD HBM: 8kV, CDM: 1kV
Industry Standard SC59, SOT23 (Type S) and SIP-3 (Bulk Pack) Packages
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

Application(s)

Brushless DC motor commutation
Revolution per minute (RPM) measurement
Flow meters
Angular and linear encoders and position sensors
Contactless commutation, speed measurement, and angular position sensing/indexing in consumer home appliances, office equipment, and industrial applications

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP)	Standard
AEC Qualified	No
Type	Latch
Outputs	Single
Output Type	Pull-Up Resistor
Active Output State (B > Bop)	Low
Inactive Output State (B < Brp)	High
Operating Voltage (V)	3 to 27
Average Supply Current (mA)	2.8
Min Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss)	15
Typ Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss)	30
Max Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss)	45
Min Release Point Brp (Brps +ve/ Brpn -ve) (Gauss)	-45
Typ Release Point Brp (Brps +ve/ Brpn -ve) (Gauss)	-30
Max Release Point Brp (Brps +ve/ Brpn -ve) (Gauss)	-15
Output Current Capability (mA)	60
Operating Ambient Temperature (°C)	-40 to 125

Technical Documents

Recommended Soldering Techniques

TN1.pdf