AH175-PG-A-B Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN AH175 USE AH3774 HALL EFFECT LATCH FOR HIGH TEMPERATURE Description Pin Assignments AH175 is a single-digital-output Hall-Effect latch sensor for high temperature operation. The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier to amplify Hall voltage, (Front View) and a comparator to provide switching hysteresis for noise rejection, an open-collector output pre-driver. An internal band-gap regulator 3. OUT provides a temperature compensated supply voltage for internal 2. GND circuits and allows a wide operating supply range. 1. Vcc SIP-3 (Bulk Pack) When the magnetic flux density (B) is larger than operate point (Bop), output is switched on (OUT pin is pulled low). The output state is held on until a magnetic flux density reversal falls below Brp. When B is less than Brp, the output is switched off. (Top View) The AH175 is available in SIP-3 (Ammo Pack), SIP-3 (Bulk Pack) and 3. OUT SC59 packages. GND 2. 1. Vcc SC59 Features Bipolar Hall-Effect Latch Sensor 3.5V to 20V DC Operating Voltage Applications Open Collector Pre-Driver 25mA Output Sink Current Rotor Position Sensing Built-in Power Reverse Protection Current Switch Operating Temperature: -40C to +150C Encoder SIP-3 (Ammo Pack), SIP-3 (Bulk Pack) and SC59 Packages RPM Detection (SC59 is Commonly Known as SOT23 in Asia) Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. Green Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See NOT RECOMMENDED FOR NEW DESIGN AH175 USE AH3774 Pin Descriptions Pin Name Pin # Description Vcc 1 Positive Power Supply GND 2 Ground OUT 3 Output Stage Functional Block Diagram V CC 1 REG. 3 OUT AMP 2 GND Absolute Maximum Ratings (T = +25C) A Symbol Characteristics Values Unit V Supply Voltage 20 V CC V (off) Output Off Voltage 20 V OUT I (sink) Output On Current 25 mA O T Storage Temperature Range -65 to +150 C S T Maximum Junction Temperature +150 C J SIP-3 (Ammo Pack) 550 mW P Power Dissipation SIP-3 (Bulk Pack) 550 mW D SC59 230 mW Recommended Operating Conditions Symbol Characteristic Conditions Min Max Unit V Supply Voltage Operating 3.5 20 V CC T Operating Ambient Temperature (Note 4) Operating -40 +150 C A Notes: 4. The device P and Safety Operation Area should not be exceeded. D 2 of 9 AH175 August 2017 Diodes Incorporated www.diodes.com Document number: DS31043 Rev. 11 - 3