UNISONIC TECHNOLOGIES CO., LTD
UHC577
Advance LINEAR INTEGRATED CIRCUIT
1 of 5
Copyright © 2020 Unisonic Technologies Co., Ltd QW-R118-033.a
HALL-EFFECT DC FAN
DRIVER
DESCRIPTION
The UTC UHC577 is an integrated Hall sensor with H-
output driver designed for brushless
DC motor applications. The
device is using HV process includes an on-chip Hall sensor
magnetic sensing, an amplifier that amplifies the Hal
comparator to provide switching hysteresis for noise rejection,
bi-directional drivers for sinking and driving large current load.
Placing the dev
ice in a variable magnetic field, if the magneti
flux density is larger than
threshold BOP, the DO is turned to sink
and DOB is turned to drive. This output state is held until
magnetic flux density reverses and falls below BRP, then caus
DO to be turned to drive and DOB turned to sink.
FEATURES
* One-chip Solution (Hall Element + Driver)
* Input Voltage Range : 3V~24V
* Low Output Switching Current Noise
* Built-in VDD To GND reverse voltage protection
* High Sensitivity Hall Sensor
BOP(25GS), BRP(-25GS)
* Thermal Shutdown Protection
* Temperature Range: -40°C~ +125 °C
ORDERING INFORMATION
Package Packing
(1) K: Bulk
(2) G04: SIP-4
(3
) G: Halogen Free and Lead Free, L: Lead Free
UH577G-G04-K
(1)Packing Type
(2)Package Type
(3)Green Package
MARKING
Date Code
UTC
UH577
1
L: Lead Free
G: Halogen Free