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| SH236 Complementary Output Elektronische Bauelemente RoHS Compliant Product Hall Effect Latch Sink Driver IC Description The SH236 is an integrated Hall effect latched sensor with output pull-high resistor driver designed for electronic commutation of brushless 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 complementary open-collector drivers for sinking large current loads. 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) and DOB is turned off (high). The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off and DOB turned on. SH236 is rated for operation over o o temperature range from -20 C to 85 C and voltage range from 3.5V to 20V. The devices are available in low cost die forms or rugged 4 pin SIP packages. Features * High Output Sinking Capability Up To 200mA For Driving Large Load REF. A A1 b b1 Millimeter Min. 1.295 0.610 0.330 0.406 0.432 0.508 Max. 1.803 REF. D E L e Millimeter Min. 5.105 3.531 14 1.27REF Max. 5.359 3.785 16 * On-Chip Hall Sensor IC With Two Different Sensitivity And Hysteresis Settings For SH236 * Lower Current Change Rate Reduces The Peak Output Voltage During Switching * Internal Bandgap Regulator Allows Temperature Compensated Operations And A Wide Operating Voltage Range * Package : SIP-4L * Build In Protection Diode For Chip Reverse Power Connecting Applications * Brushless DC Motor * Speed Measurement * Revolution Counting * Brushless DC Fan Pin Descriptions Name Vcc DO DOB Vss http://www.SeCoSGmbH.com/ P/I/O P O O P Pin# 1 2 3 4 Description Positive Power supply Output Pin Output Pin Ground Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 1 of 6 SH236 Elektronische Bauelemente Complementary Output Hall Effect Latch Sink Driver IC Function Block Diagrams Absolute Maximum Ratings at Ta= 25 C Parameter Supply Voltage Reverse VCC Polarity Voltage Magnetic Flux Density Output OFF Voltage Continuous Output ON Current Operating Temperature Range Storage Temperature Range Package Power Dissipation Max. Junction Temperature Hold Peak (Start UP) TA TS PD Tj IC o Symbol VCC VRCC B VCE Value 20 -35 Unlimited 35 200 400 700 -20~85 -65~150 550 Unit V V V mA o o C C C mW o 175 Electrical Characteristics (Ta=+25 , Vcc=4.0V to 20V) Parameter Low Supply Voltage Supply Voltage Symbol Test Conditions Vce Vcc=3.5V, IL=100mA Vcc ICex ICC Tr Tf t Vce=14V, Vcc=14V Vcc=20V, Output Open Vcc=14V, RL=820 , CL=20pf Vcc=14V, RL=820 , CL=20pf Vcc=14V, RL=820 , CL=20pf Min 3.5 - Typ 0.4 0.6 <0.1 13 3.0 0.3 3.0 Max 20 0.9 10 20 10 1.5 10 Unit V V V uA mA us us us Output Saturation Voltage Output Leakage Current Supply Current Output Rise Time Output Falling Time Switch Time Differential Vce(sat) Vcc=14V, IL=300mA http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 2 of 6 SH236 Elektronische Bauelemente Complementary Output Hall Effect Latch Sink Driver IC Power dissipation VS. Environment Temperature Ta( : ) 25 50 60 70 80 85 90 95 100 105 110 115 120 Pd(mW) 550 525 515 505 485 475 465 455 445 425 405 385 365 P d (m W ) 600 500 400 300 200 100 0 25 50 75 100 125 150 T a (C ) P o w e r D is s ip a tio n C u rv e Magnetic Characteristics Characteristic BIN A Operate Point BIN B BIN C BIN A Release Point BIN B BIN C BIN A Hysteresis BIN B BIN C Symbol Bop Bop Bop Brp Brp Brp Bhys Bhys Bhys Ta=+25 : Min Max 70 100 130 -70 0 -100 -130 40 110 50 150 60 160 Ta=0 : to 70 : Min Max 70 100 130 -70 0 -100 -130 20 140 30 200 40 220 Unit Gauss Gauss Gauss Gauss Gauss Gauss Gauss Gauss Gauss Test Circuit 14V Vout1(DO) RL1 Vout2(DOB) RL2 RL1=RL2=820 Ohm CL1=CL2=20 pF CL1 CL2 h tp://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 3 of 6 SH236 Elektronische Bauelemente Complementary Output Hall Effect Latch Sink Driver IC Hysteresis Characteristics Bin A DOB Output Voltage in Volts DO Output Voltage in Volts RP 12 10 8 6 4 OFF OFF 12 10 8 6 4 OP ON -200 -100 0 2 100 OP 200 RP -200 -100 0 2 100 ON 200 Magnetic Flux Density in Gauss Magnetic Flux Density in Gauss Bin B DOB Output Voltage in Volts RP 12 10 8 6 4 ON -200 -100 0 2 100 OP 200 DO Output Voltage in Volts OFF OFF 12 10 8 6 4 RP -200 -100 0 2 100 ON 200 OP Magnetic Flux Density in Gauss Bin C Magnetic Flux Density in Gauss DOB Output Voltage in Volts RP 12 10 8 6 4 ON -200 -100 0 2 100 OP 200 OFF DO Output Voltage in Volts OFF 12 10 8 6 4 RP -200 -100 0 2 100 ON 200 OP Magnetic Flux Density in Gauss Magnetic Flux Density in Gauss http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 4 of 6 SH236 Elektronische Bauelemente Complementary Output Hall Effect Latch Sink Driver IC Electrical Characteristics Curves Typical Supply Current VS. Supply Voltage Icc (mA) 0 1.5 3 4.5 6 7.5 9 10.5 Vcc (V) 12 13.5 15 16.5 18 19.5 Output Driving Capacity Vcc=12V Vce (V) IL (mA) http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 5 of 6 SH236 Elektronische Bauelemente Complementary Output Hall Effect Latch Sink Driver IC Application Circuit Double Coil 1) Output on current, Ic > 250mA 2) With FG output Remark: C1, C2: Capacitor 2.2 F~4.7 F (optional) Remark: C1: Capacitor 0.1 F~1 F R1: Resister 1K Package Information Active Area Depth Package Sensor Location 1.75mm Top View Marking Site 0.7mm 1.35mm Top View 1 2 3 4 Tolerance: +/- 0.05mm http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 6 of 6 |
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