FSH41

BIPOLAR HALL EFFECT POSITION SENSOR FSH41 GENERAL DESCRIPTION The FSH41 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 amplifiers the Hall voltage, and a Schmitt to provide switching hysteresis for noise rejection, and open-collector output. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. A north pole of sufficient strength will turn the output ON. In the absence of a magnetic field, the output is OFF. FEATURES Wide operating voltage range: 3.0V~20V Maximum output sink current 50mA Package: SIP3 PIN CONFIGURATION (Top View) 3 2 1 Output Gnd Vcc Name Vcc Gnd Output No. 1 2 3 Status P P O Description IC Power Supply IC Ground It is low state during the N magnetic field FUNCTIONAL BLOCK DIAGRAM Vcc 1 Regulator Hall Sensor 3 Output 2 Gnd ABSOLUTE MAXIMUM RATINGS Vcc Pin Voltage Output OFF Voltage,Vce Output ON Current(Io) (Continuous Current) Power Dissipation (Ta=25℃) Operating Temperature Range Storage Temperature Range Junction Temperature Lead Temperature(Soldering,10 sec) 20V 30V 50mA 400mW -40℃~+150℃ -65℃~+150℃ +150℃ +230℃ 1/5 2007-1-24 BIPOLAR HALL EFFECT POSITION SENSOR FSH41 DC ELECTRICAL CHARACTERISTICS Test Conditions No use pin is open(Fig1) No use pin is open(fig1) No use pin is open Quiescent Supply current Icc Vcc:3.0V~20V(Fig1) Output Saturation Voltage VSAT Vcc=12V,Io=50mA(Fig1) Note: Fig1 The IC output state is under N magnetic field. Parameter Minimum Operating Voltage Maximum Operating Voltage Symbol Vcc Vcc Min. Typ. 3.0 20.0 3.7 400 Max. Unit V V mA mV 10 500 OUTPUT SATURATION VOLTAGE VS. OUTPUT CURRENT (IO) VCC=12V, TEMP. =25℃ Output Current (Io) Unit: mA 5 15 25 35 45 50 Saturation Voltage Unit: V 0.05 0.13 0.19 0.27 0.35 0.40 Note AC ELECTRICAL CHARACTERISTICS Parameter Rise time Fall time Symbol (tr) (tf) Test Conditions RL=820Ω CL=20pF(Fig1) RL=820Ω CL=20pF(Fig1) Min. Typ. 0.2 0.5 Max. Unit µS µS MAGNETIC CHARACTERISTICS FSH41 Parameter Bop Brp Bhys Min. -70 140 Ta=-40℃~+150℃ Max. +70 Unit G G G Vout S Mark H Vcc Vd Bh L Vsat N Brp 0 Bop S N Magnetic flux density 2/5 2007-1-24 BIPOLAR HALL EFFECT POSITION SENSOR FSH41 Test Circuits FSH41 Vcc RL=820Ω CL=20pF Vout Fig1 TYPICAL APPLICATION CIRCUIT V+=40V 100µF 0.1µF 500Ω 0.1µF 20µF 1 2 3 4 5 Speed Adjust 6 7 Supply Voltage VrefOut Hall"A"Input Hall"B"Input Hall"C"Input FWD/RE Input Speed Adjust Input Cap Boost"A" 24 Gate Top"A" 23 Feedback"A" 22 Cap Boost"B" 21 Gate Top"B" 20 Feedback"B" 19 22Ω 10µF H1 Vref H2 H3 100µF 15V BLDC Motor 0.1µF Vref 22Ω 10µF Vref 22Ω 22Ω 22Ω 22Ω 10µF UF4002 (3 Places) Foward/Reverse Thermal Switch 0.1µF Rosc 1KΩ 10KΩ Cap Boost"C" 18 8 Oscillator Control Gate Top"C" 17 9 (+)CurrentLimit(Brake) Feedback"C" 16 10 Analog Ground Gate Bottom"A" 15 11 (-)CurrentLimit(Reset)Gate Bottom"B" 14 12 Power Ground Gate Bottom"C" 13 Cosc 0.005µF Counter Reset 1K Filter 1K Brake Isense Resistor 3/5 2007-1-24 BIPOLAR HALL EFFECT POSITION SENSOR FSH41 HALL SENSOR LOCATION The Fig2 is hall sensor location, where marks the IC number. X Unit Y X Y 2.1 1.55 mm mm Fig2 FSH41 Hall Sensor Location ORDERING INFORMATION FSH41XXX Package: M: SIP3 Packing: Blank: Tube or Bulk Temperature Grade: F: -40~150℃ MARKING INFORMATION 4/5 2007-1-24 BIPOLAR HALL EFFECT POSITION SENSOR FSH41 PACKAGE INFORMATION A A1 E C D B c b e d L θ Symbol A A1 B b C c D d E e L L1 θ Dimensions In Millimeters Nom. Max. 1.50 1.60 0.74 0.79 2.62 2.72 1.27 1.32 0.58 0.331 0.381 0.431 3.9 4.0 4.1 0.1 3.0 3.1 3.2 2.44 2.54 2.64 13.0 14.0 15.0 0.35 0.38 0.41 45ο Min. 1.40 0.69 2.52 1.22 Min. 0.055 0.027 0.099 0.048 0.013 0.154 0.120 0.096 0.51 0.014 Dimensions In Inches Nom. 0.059 0.029 0.103 0.05 0.015 0.157 0.124 0.100 0.55 0.015 Max. 0.063 0.031 0.107 0.052 0.023 0.017 0.160 0.004 0.128 0.104 0.59 0.016 45ο 5/5 2007-1-24 L1