HI-SINCERITY
MICROELECTRONICS GROUP.
Spec. No. : IC200914
Issued Date : 2009.08.12
Revised Date :2010,01,18
Page No. : 1/6
H177
Single Output Hall Effect Latch IC
General Description
H177 is an integrated Hall effect latched sensor with output pull-high resistor driver
designed for electronic commutation of brushless DC motor applications and contactless
switches.
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 output driver with pull-high resistor. 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).
H177 is rated for operation over temperature range from -20℃ to 85℃ and voltage range from 3.5V to 28V. The devices are
available in low cost die forms or rugged 3 pin SIP packages.
SIP-3L Package
Features
•
Wide range of supply voltage: 3.5V to 28V.
•
Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range.
•
High sensitivity with a small magnet.
•
TTL and MOS ICs directly drivable by output.
•
Build in protection diode for chip reverse power connecting.
•
Package: SIP-3L.
Applications
•
Brushless DC Motor
•
Brushless DC Fan
•
Position Sensors
•
Rotation Sensors
•
Revolution Counting
•
Speed Measurement
•
Keyboard Switches
•
Micro-switches
H177
HSMC Product Specification
HSMC [ HI-SINCERITY MOCROELECTRONICS ]
