AH175-WL-7-B Diodes Incorporated

AH175 HALL EFFECT LATCH FOR HIGH TEMPERATURE Description Pin Assignments AH175 is a single-digital-output Hall-Effect latch sensor for (Top View) high temperature operation. The device includes an on-chip 3. OUT Hall voltage generator for magnetic sensing, an amplifier to amplify Hall voltage, and a comparator to provide switching GND 2. hysteresis for noise rejection, an open-collector output pre- 1. Vcc driver. An internal band-gap regulator provides a temperature compensated supply voltage for internal circuits and allows a SIP-3L wide operating supply range. When the magnetic flux density (B) is larger than operate (Top View) point (Bop), output is switched on (OUT pin is pulled low). The output state is held on until a magnetic flux density 3. OUT reversal falls below Brp. When B is less than Brp, the output GND 2. is switched off. 1. Vcc The AH175 is available in SIP-3L and SC59 packages. SC59 Features Applications Bipolar Hall-Effect latch sensor Rotor Position Sensing 3.5V to 20V DC operating voltage Current Switch Open collector pre-driver Encoder 25mA output sink current RPM Detection Built-in power reverse protection Operating Temperature: -40C~+150C SIP-3L and SC59 packages (SC59 is commonly known as SOT23 in Asia) Green Molding Compound (No Br, Sb) (Note 1) Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at AH175 HALL EFFECT LATCH FOR HIGH TEMPERATURE 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 = 25 C) 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 Ts Storage Temperature Range -65~+150 C T Maximum Junction Temperature +150 C J SIP-3L 550 mW P Power Dissipation D SC59 230 mW Recommended Operating Conditions Symbol Characteristic Conditions Min Max Unit V Supply Voltage Operating 3.5 20 V CC Operating Ambient Temperature T Operating -40 150 C A (Note 2) Notes: 2. The device P and Safety Operation Area should not be exceeded. D 2 of 9 July 2010 AH175 Diodes Incorporated www.diodes.com Document number: DS31043 Rev. 10 - 2