SH236

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 Gr o u n d 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 I CC 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 Mi n 3.5 - Typ 0.4 0.6 250mA 2) With FG output Remark: C 1, C2: Capacitor 2.2 F~4.7 F ( opt ional) 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