SH177 Single Output Elektronische Bauelemente Hall Effect Latch IC RoHS Compliant Product Description The SH177 is an integrated Hall effect latched sensor with output pull-high resistor driver designed for electronic commutation of brushless DC motor applications and contactless switches. 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 output driver with pull-high resistor. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. If a magnetic flux density larger than threshold Bop, DO is turned on (low). The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off (high). o SH177 is rated for operation over temperature range from -20 C o to 100 C and voltage range from 3.5V to 28V. The devices are available in low cost die forms or rugged 3 pin SIP packages. Features REF. * Internal Bandgap Regulator Allows Temperature Compensated A A1 Operations And A Wide Operating Voltage Range Millimeter Min. Max. 1.245 1.753 0.750REF. REF. Millimeter Min. Max. D 3.962 4.216 E 2.870 3.124 13.60 15.60 * Build In Protection Diode For Chip Reverse Power Connecting b 0.330 0.432 L * TTL and MOS ICs Directly Drivable By Output b1 0.406 0.508 e 1.27 REF. * Wide Range Of Supply Voltage: 3.5V to 28V * High Sensitivity With A Small Magnet Applications * Rotation Sensors * Position Sensors * Speed Measurement * Microswitches * Keyboard Switches * Brushless DC Motor * Brushless DC Fan * Revolution Counting Pin Descriptions Name Vcc Vss DO http://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A P/I/O P P O Pin# 1 2 3 Description Positive power supply Ground Digital output Any changing of specification will not be informed individual Page 1 of 5 SH177 Single Output Elektronische Bauelemente Hall Effect Latch IC Function Block Diagrams VCC VCC 1 1 27K REG. HALL SENSOR 3 OUTPUT(DO) 2 Vss o Absolute Maximum Ratings at Ta= 25 C Parameter Value Symbol Unit Supply Voltage VCC 28 V Reverse VCC Polarity Voltage VRCC -28 V Magnetic Flux Density B Unlimited Output OFF Voltage VCE 35 Output ON Current IC Continuous V mA TA 25 -20~100 Storage Temperature Range TS -65~150 Package Power Dissipation PD 250 mW Max. Junction Temperature Tj 175 C Operating Temperature Range o C o C o o Electrical Characteristics Ta=25 C Parameter Supply Voltage VCC Low output voltage VOL High output voltage VOH Output Leakage Current Output Short-circuit Current Supply Current ICEX -IOS ICC Output Rise Time Output Falling Time http://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A Test Conditions Min Typ. Max. Unit 3.5 - 28 V VCC=16V,Io=12mA,B=130 Gauss - - 0.4 V VCC=3.6V,Io=12mA,B=130 Gauss - - 0.4 V VCC=16V, Io=-30 A,B=-130 Gauss 14.6 - - V VCC=3.6V,Io=-30 A,B=-130 Gauss VCC=16V,Vcc=16V VCC=16V,Vo=0V,B=-130 Gauss VCC=24V,Output Open VCC=16V,RL=820 CL=20pf 2.2 - - V 0.4 - <0.1 5 0.3 10 0.9 10 1.5 uA mA mA us - 0.3 1.5 us Symbol tr tf - VCC=16V,RL=820 CL=20pf Any changing of specification will not be informed individual Page 2 of 5 SH177 Single Output Elektronische Bauelemente Hall Effect Latch IC Test Circuit 16V Vout(DO) RL RL=820 Ohm CL=20 pF CL Power dissipation VS. Environment Temperature Ta( ) 25 50 60 70 80 85 90 95 100 105 110 115 Pd(mW) 275 262 257 252 242 237 232 227 222 212 202 192 125 182 P o w e r D is s ip a t io n C u r v e P d (m W ) 300 250 200 150 100 0 25 50 75 100 125 150 T a ( °C ) Electrical Characteristics Curves Current capacity vs. supply voltage for DO pin h tp://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A Icc v.s Vcc at Different Temp Any changing of specification will not be informed individual Page 3 of 5 SH177 Single Output Elektronische Bauelemente Hall Effect Latch IC Magnetic Characteristics Characteristic Operate Point Release Point Hysteresis Symbol Ta=-0 Ta=+25 Max Min Min to +70 Unit Max BIN A Bop 0 70 0 70 Gauss BIN B Bop Bop - 100 - 100 Gauss BIN C - 130 - 130 Gauss BIN A Brp -70 0 -70 0 Gauss BIN B Brp -100 - -100 - Gauss BIN C Brp -130 - -130 - Gauss BIN A Bhys 40 110 20 140 Gauss BIN B Bhys 50 150 30 200 Gauss BIN C Bhys 60 160 40 220 Gauss Hysteresis Characteristics Output Voltage in Volts Bin A DO 12 OFF OP 10 8 6 4 2 RP -200 -100 0 ON 100 200 Magnetic Flux Density in Gauss Output Voltage in Volts Bin B DO 01-Jun-2002 Rev. A OP 10 8 6 4 2 RP -200 http://www.SeCoSGmbH.com/ 12 OFF -100 0 ON 100 200 Magnetic Flux Density in Gauss Any changing of specification will not be informed individual Page 4 of 5 SH177 Single Output Elektronische Bauelemente Hall Effect Latch IC Output Voltage in Volts Bin C DO 12 OFF OP 10 8 6 4 2 RP -200 -100 0 ON 100 200 Magnetic Flux Density in Gauss Package Information Active Area Depth Package Sensor Location Max:2.13mm Min:1.87mm 0.51mm NOM Max:1.53mm Min:1.27mm BRANDED SURFACE http://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A 1 2 3 Any changing of specification will not be informed individual Page 5 of 5