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H654

Unisonic Technologies
Part Number H654
Manufacturer Unisonic Technologies
Description COMPLEMENTARY OUTPUT HALL EFFECT LATCH
Published Feb 24, 2016
Detailed Description UNISONIC TECHNOLOGIES CO., LTD H654 LINEAR INTEGRATED CIRCUIT COMPLEMENTARY OUTPUT HALL EFFECT LATCH DESCRIPTION The...
Datasheet PDF File H654 PDF File

H654
H654


Overview
UNISONIC TECHNOLOGIES CO.
, LTD H654 LINEAR INTEGRATED CIRCUIT COMPLEMENTARY OUTPUT HALL EFFECT LATCH DESCRIPTION The UTC H654 is integrated Hall sensors with complementary output drivers designed for electronic commutation of brushless DC Fan.
It composed of an on-chip Hall voltage generator, a differential amplifier, Schmitt trigger, an open-collector output on a single chip.
Furthermore, an internal bandgap regulator allows temperature compensated operations and a wide operating supply range.
An on-chip protection diode is implemented to prevent reverse power fault.
When the magnetic flux density larger than threshold BOP, DO will be turned on(low) and DOB be turned off(high).
The output state is held until the magnetic flux density is lower than BRP, and then DO is reversal to turned off and DOB turned on.
FEATURES * Operate from 3.
5V ~ 20V supply voltage.
* On-chip Hall sensor with two different sensitivity and hysteresis settings.
* High output sinking capability up to 300mA for driving large load.
* Lower current change rate reduces the peak output voltages during switching.
* Build-in protecting diode for chip reversal power connecting.
(Note1) 1 SIP-4 *Pb-free plating product number: H654L ORDERING INFORMATION Order Number Normal Lead Free Plating H654-G04-K H654L-G04-K Package SIP-4 Packing Bulk H654L-G04-K (1)Packing Type (2)Package Type (3)Lead Plating (1) B: Bulk (2) G04: SIP-4 (3) L: Lead Free Plating, Blank: Pb/Sn PIN DESCRIPTION PIN NO.
PIN NAME 1 VCC 2 DO 3 DOB 4 VSS P/I/O P O O P DESCRIPTION Positive Power Supply Output Pin Output Pin Ground www.
unisonic.
com.
tw Copyright © 2005 Unisonic Technologies Co.
, Ltd 1 of 5 QW-R118-003,B H654 BLOCK DIAGRAM 1 VCC REG.
Hall Sensor LINEAR INTEGRATED CIRCUIT DO 2 DOB 3 VSS 4 UNISONIC TECHNOLOGIES CO.
, LTD www.
unisonic.
com.
tw 2 of 5 QW-R118-003,B H654 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Ta=25 ) PARAMETER Supply Voltage Reverse VCC Polarity Voltage Output OFF Voltage ...


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