Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

SIP-3-3D-image.png

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

SOT23.png

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AH3717

27V Open-Drain 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	Open Drain
Active Output State (B > Bop)	Low
Inactive Output State (B < Brp)	High-Z
Operating Voltage (V)	3 to 27
Average Supply Current (mA)	2.8
Min Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss)	110
Typ Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss)	140
Max Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss)	170
Min Release Point Brp (Brps +ve/ Brpn -ve) (Gauss)	-170
Typ Release Point Brp (Brps +ve/ Brpn -ve) (Gauss)	-140
Max Release Point Brp (Brps +ve/ Brpn -ve) (Gauss)	-110
Output Current Capability (mA)	280
Operating Ambient Temperature (°C)	-40 to 125

Technical Documents

Recommended Soldering Techniques

TN1.pdf