FS177LF-B

FS177 Low Voltage Hall Effect Latch Technology General Description The FS177 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 amplifies the Hall voltage, and a Schmitt trigger 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 to 20V  Maximum output sink current 25mA  Open-Collector pre-driver  Reverse polarity protection  Package : TO-92SP-3 TO-92SP-3 Typical Application Circuit +12V R1 L1 L2 FS177 1 R2 Output 3 Vcc Gnd 2 C1 C2 Brushless DC Fan Rev0.7 Apr. 25, 2012(LF) FS177 Data Sheet Page 1 / 10 FS177 Low Voltage Hall Effect Latch Technology Functional Block Diagram VCC 1 Regulator Hall Sensor 3 Output 2 Gnd Mark View NAME NO. STATUS 177 . 1 2 Pin Descriptions DESCRIPTION VCC 1 P IC Power Supply GND 2 P IC Ground Output 3 O It is low state during the N magnetic field. 3 Year Ex: 1 (2001) 2 (2002) Week of Year Product Ver. Rev0.7 Apr. 25, 2012(LF) FS177 Data Sheet Page 2 / 10 FS177 Low Voltage Hall Effect Latch Technology Absolute Maximum Ratings ( at Ta = 25 oC ) VCC Pin Voltage ------------------------------------------------------------------------------ 20V Output OFF Voltage, Vce ------------------------------------------------------------------- 20V Output ON Current (Io) Continuous Current ---------------------------------------------------------------- 25mA Power Dissipation Ta=25 oC -----------------------------------------------------------------------------o Ta=100 C ---------------------------------------------------------------------------- 400mW 178mW Thermal Resistance Θja= ----------------------------------------------------------------------------------- 0.34 oC/mW Θjc= ----------------------------------------------------------------------------------- 0.42 oC/mW Operating Temperature Range ---------------------------------------------------- -20 oC to 100 oC Storage Temperature Range ------------------------------------------------------- -65 oC to 150 oC Junction Temperature ----------------------------------------------------------------------- +160 oC Lead Temperature (Soldering, 10 sec) -------------------------------------------------- +260 oC ROOM TEMP 255 ± 5oC 10 ± 1 sec 150 ± 10 oC 90 ± 30 sec 2 ~ 5 oC / sec 2 ~ 5 o C / sec SECOND Soldering Condition Rev0.7 Apr. 25, 2012(LF) FS177 Data Sheet Page 3 / 10 FS177 Low Voltage Hall Effect Latch Technology DC Electrical Characteristics (at Ta = 25 oC) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Operating Voltage VCC No use pin is open (Fig1) 3.0 - 20.0 V Supply current ICC No use pin is open Vcc : 3.0V to 20V (Fig1) - 4.2 10 mA Vcc=12V, Io = 20mA - 165 200 mV 0.2 - 0.75 uS 20 - 150 nS Output Saturation Voltage VSAT RL=500ohm, CL=20pF (Fig1) RL=500ohm, CL=20pF Output Fall time (tƒ ) (Fig1) Note: Fig1 The IC output state is under N magnetic field. Output Rise time (tr) Power Dissipation Curve Pd (mW) 400 326 252 178 104 160 30 0 0 25 50 75 100 125 150 o C 175 Temp. ( C ) o Rev0.7 Apr. 25, 2012(LF) FS177 Data Sheet Page 4 / 10 FS177 Low Voltage Hall Effect Latch Technology Magnetic Characteristics (1mT=10Gauss) Ta = -20 oC to 100 oC FS177LF- A Parameter Symbol Min. Typ Max. Unit Operate Point Bop +5 +35 +60 Gauss Release Point Brp -60 -30 -5 Gauss Bhys 30 120 Gauss Hysteresis o FS177LF- B o Ta = -20 C to 100 C Parameter Symbol Min. Typ Max. Unit Operate Point Bop +5 - +80 Gauss Release Point Brp -80 - -5 Gauss Bhys 30 120 Gauss Hysteresis o FS177LF- C o Ta = -20 C to 100 C Parameter Symbol Min. Typ Max. Unit Operate Point Bop - - +100 Gauss Release Point Brp -100 - - Gauss Bhys 30 120 Gauss Hysteresis FS177 Magnetic Hysteresis Characteristics Diagram： Output Voltage in Voltage Vout Vsat B (Magnetic) -S -S 0 +N +N Magnetic Flux Density in Gauss Rev0.7 Apr. 25, 2012(LF) FS177 Data Sheet Page 5 / 10 FS177 Low Voltage Hall Effect Latch Technology Test Circuits +12V RL FS177 1 Vout Output 3 Vcc Gnd 2 CL Fig 1 Rev0.7 Apr. 25, 2012(LF) FS177 Data Sheet Page 6 / 10 FS177 Low Voltage Hall Effect Latch Technology 7 400 6 350 5 300 Vsat - mV ICC - mA Typical Characteristics 4 3 250 200 2 150 1 100 0 0 0 3 6 9 12 15 20 0 10 20 30 VCC - V Iout - mA Figure 1 Figure 2 40 50 60 75 100 125 100 125 70 74 65 72 60 55 BOP - GAUSS BHYS - GAUSS 70 68 66 50 45 40 35 64 30 62 25 60 3 6 9 12 15 20 -25 20 Figure 4 -40 100 -35 90 -30 -25 80 70 -20 60 -15 50 -10 25 50 Figure 3 110 0 25 TEMPERATURE - oC -45 -25 0 VCC - V BHYS - GAUSS BRP - GAUSS 0 50 75 100 125 40 -25 o 0 25 50 75 TEMPERATURE - C TEMPERATURE - oC Figure 5 Figure 6 Rev0.7 Apr. 25, 2012(LF) FS177 Data Sheet Page 7 / 10 FS177 Low Voltage Hall Effect Latch Technology HALL SENSOR LOCATION The Fig 2 is the hall sensor location, where marks the IC number. X UNIT Y X 2.1 mm Y 1.55 mm Fig 2 FS177 Hall Sensor Location Package Outline (LEAD FREE) Rev0.7 Apr. 25, 2012(LF) FS177 Data Sheet Page 8 / 10 FS177 Low Voltage Hall Effect Latch Technology LABEL SPECIFICATIONS Rev0.7 Apr. 25, 2012(LF) FS177 Data Sheet Page 9 / 10 FS177 Low Voltage Hall Effect Latch Technology 7.5 cm Feeling Technology Corp. Product Type: FS177LF- X 5.5 cm Lot No: XXXXXXXXX Date Code: XXX Package Type: SIP- 3L Marking Type: XXXXX Tatal Q'ty: XXXXX 無鉛 Lead Free BAG LABEL, INSIDE BOX & CARTON LABEL ORDER INFORMATION Part Number FS177LF- A Operating Temperature -20 oC to +100 oC Package TO-92SP-3 Description ± 60G (B) FS177LF- B -20 oC to +100 oC TO-92SP-3 ± 80G (B) TO-92SP-3 ±100G (B) FS177LF- C o o -20 C to +100 C Rev0.7 Apr. 25, 2012(LF) FS177 Data Sheet Page 10 / 10