UH277 Unisonic Technologies, UH277 Datasheet

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UH277

Manufacturer Part Number
UH277
Description
Complementary Outputs Hall Effect Latch Ic
Manufacturer
Unisonic Technologies
Datasheet

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UH277G
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UH277
COMPLEMENTARY OUTPUTS
HALL EFFECT LATCH IC
complementary output drivers. It’s designed with internal temperature
compensation circuit and built-in protection diode prevent reverse
power fault. The application is aimed for brush-less DC Fan
The Outputs alternately ON and OFF when either the magnetic flux
density larger than threshold B
than B
* Widen Power Supply range from 3V ~ 20V.
* On-chip Hall sensor with excellent hysteresis.
* Open Collector outputs had the sinking capability up to 300mA.
* Output Clamping Diodes reduce the peak output voltages during
* Build-in reverse protection diode.
PIN NO. PIN NAME
www.unisonic.com.tw
Copyright © 2007 Unisonic Technologies Co., Ltd
switching.
1
2
3
4
The UTC UH277 is a Latch-Type Hall Effect sensor with built-in
ORDERING INFORMATION
DESCRIPTION
FEATURES
PIN DESCRIPTION
UH277L-G04-K
UH277-G04-K
RP
The UH277 Outputs operate as the Hysteresis Characteristics.
.
Normal
DOB
V
V
DO
CC
SS
Ordering Number
UNISONIC TECHNOLOGIES CO., LTD
P/I/O
O
O
P
P
(1)Packing Type
(2)Package Type
(3)Lead Plating
Lead Free Plating
OP
Positive Power Supply
Output Pin
Output Pin
Ground
UH277L-G04-K
or the magnetic flux density lower
DESCRIPTION
Package
SIP-4
(1) B: Bulk
(2) G04: SIP-4
(3) L: Lead Free Plating, Blank: Pb/Sn
LINEAR INTEGRATED CIRCUIT
Packing
Bulk
*Pb-free plating product number: UH277L
QW-R118-003,D
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UH277 Summary of contents

Page 1

... UH277 COMPLEMENTARY OUTPUTS HALL EFFECT LATCH IC DESCRIPTION The UTC UH277 is a Latch-Type Hall Effect sensor with built-in complementary output drivers. It’s designed with internal temperature compensation circuit and built-in protection diode prevent reverse power fault. The application is aimed for brush-less DC Fan The UH277 Outputs operate as the Hysteresis Characteristics ...

Page 2

... UH277 BLOCK DIAGRAM REG. Hall Sensor SENSOR LOCATIONS UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw LINEAR INTEGRATED CIRCUIT DO 2 DOB QW-R118-003 ...

Page 3

... UH277 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Reverse V Polarity Voltage CC Output OFF Voltage Magnetic flux density Output ON Current Power Dissipation Junction Temperature Operating Temperature Storage Temperature Note 1: Output Zener protection voltage ELECTRICAL CHARACTERISTICS PARAMETER Low Supply Voltage Supply Voltage Output Saturation Voltage ...

Page 4

... UH277 CHYSTERESIS CHARACTERISTICS UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw LINEAR INTEGRATED CIRCUIT QW-R118-003 ...

Page 5

... UH277 TYPICAL APPLICATION CIRCUIT TEST CIRCUIT 14V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw LINEAR INTEGRATED CIRCUIT UTC UH277 R L1 820Ω 820Ω 20pF 20pF DO DOB QW-R118-003 ...

Page 6

... UH277 PERFORMANCE CHARACTERISTICS Ta(℃ (mW) 550 525 515 - Ta=25℃ UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein ...

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