AH175

Features:

- Bipolar Hall effect latch sensor
- 3.5V to 20V DC operation voltage
- Open collector pre-driver
- 25mA output sink current
- Chip power reverse-connection protection
- Operating temperature: −40°C ~ +125°C
- Package: SIP3, SOT23




Application

- Rotor position sensing
- Current switch
- Encoder
- RPM detection




Specifications

Parameter		Symbol	Rating	Unit
Supply voltage		VCC	20	V
Output "OFF " voltage		Vout (off)	20	V
Output "ON" current		Io (sink)	25	mA
Operating temperature range		Top	-40~+125	°C
Storage temperature range		Tstg	-65~+150	°C
Power dissipation	SIP	PD	550	mW
	SOT23		230	mW

Part Number	AH175
Description	High Temp Single Hall Effect Latch
process	Bipolar
Operating Voltage (V)	3.5 ~ 20
Output Current (Ave)	25mA
Operating Point Bop (Gauss)	15/60 5/80
Release Point Brp (Gauss)	-60/-15 -80/-5
Operating Ambient Temp Range (°C)	-40 to +150

Description

AH175 is a single-digital-output Hall-effect sensor for high temperature operation. The AH175 includes an on-chip Hall voltage generator for magnetic sensing, an amplifier to amplify Hall voltage, and a comparator to provide switching hysteresis for noise rejection, and an open-collector output pre-driver. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range.

While the magnetic flux density (B) is larger than threshold Bop, the OUT pin turns on (low). If B removed toward Brp, the OUT pin of AH175 is latched "on" state prior to B < Brp. When B < Brp, the OUT pin go into " off " state.