AH3761-WG-7

AH3761-WG-7 is an integrated hall effect latched sensor designed for electronic commutation of brush-less DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and open drain output. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. If a magnetic flux density larger than threshold Bop, DO is turned on (low). The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off (high). Typical applications include RPM detection, consumer and industrial position sensor, flow meters.

• 3V to 28V DC operation voltage
• Chopper stabilized, output short circuit protection, open drain pre-driver
• Built-in power reverse protection, built-in voltage overshoot protection
• Output saturation voltage is 300mV typ at Iout =20mA, B>Bop, TA = +25°C, VDD =24V
• Output leakage current is < 0.1µA typ at VO =24V, B<Bop, TA = +25°C, VDD =24V
• Output rising time is 340ns typ at RL =10kohm, CL =16pF, TA = 25°C, VDD =24V
• Output falling time is 20ns typ at RL =10kohm, CL =16pF, TA = 25°C, VDD =24V
• Chopping frequency is 300kHz typ at TA = +25°C, VDD =24V
• SC59 package
• Operating ambient temperature range from -40 to 125°C

Applikasjoner

Motor Drive & Control, Sensing & Instrumentation, Industrial, Consumer Electronics, Metering