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| UNISONIC TECHNOLOGIES CO., LTD H654 COMPLEMENTARY OUTPUT HALL EFFECT LATCH DESCRIPTION The UTC H654 is integrated Hall sensors with complementary output drivers designed for electronic commutation of brushless DC Fan. It composed of an on-chip Hall voltage generator, a differential amplifier, Schmitt trigger, an open-collector output on a single chip. Furthermore, an internal bandgap regulator allows temperature compensated operations and a wide operating supply range. An on-chip protection diode is implemented to prevent reverse power fault. When the magnetic flux density larger than threshold BOP, DO will be turned on(low) and DOB be turned off(high). The output state is held until the magnetic flux density is lower than BRP, and then DO is reversal to turned off and DOB turned on. LINEAR INTEGRATED CIRCUIT 1 SIP-4 *Pb-free plating product number: H654L FEATURES * Operate from 3.5V ~ 20V supply voltage. * On-chip Hall sensor with two different sensitivity and hysteresis settings. * High output sinking capability up to 300mA for driving large load. * Lower current change rate reduces the peak output voltages during switching. * Build-in protecting diode for chip reversal power connecting.(Note1) ORDERING INFORMATION Order Number Normal Lead Free Plating H654-G04-K H654L-G04-K Package SIP-4 Packing Bulk H654L-G04-K (1)Packing Type (2)Package Type (3)Lead Plating (1) B: Bulk (2) G04: SIP-4 (3) L: Lead Free Plating, Blank: Pb/Sn PIN DESCRIPTION PIN NO. PIN NAME 1 VCC 2 DO 3 DOB 4 VSS P/I/O P O O P DESCRIPTION Positive Power Supply Output Pin Output Pin Ground www.unisonic.com.tw Copyright (c) 2005 Unisonic Technologies Co., Ltd 1 of 5 QW-R118-003,B H654 BLOCK DIAGRAM LINEAR INTEGRATED CIRCUIT 1 VCC DO 2 REG. Hall Sensor DOB 3 VSS 4 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R118-003,B H654 ABSOLUTE MAXIMUM RATINGS (Ta=25 ) PARAMETER Supply Voltage Reverse VCC Polarity Voltage Output OFF Voltage Magnetic flux density Output ON Current Power Dissipation Junction Temperature Operating Temperature Storage Temperature Note 1: Output Zener protection voltage Continuous Hold Peak (Start Up) LINEAR INTEGRATED CIRCUIT SYMBOL VCC VRCC VCE B IC PD TJ TOPR TSTG RATINGS 20 -35 50 Unlimited 0.3 0.4 0.7 500 +150 -20 ~ +85 -65 ~ +150 UNIT V V V A mW ELECTRICAL CHARACTERISTICS (Ta =25 , unless otherwise specified.) PARAMETER Low Supply Voltage Supply Voltage Output Saturation Voltage Output Leakage Current Supply Current Output Rise Time Output Falling Time Switch Time Differential SYMBOL VCE VCC VCE(SAT) ICEX ICC tR tF t TEST CONDITIONS VCC=3.5V, IL=100mA VCC=14V, IL=300mA 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 0.3 <0.1 16 3.0 0.3 3.0 TYP 0.4 MAX 20 0.6 10 25 10 1.5 10 UNIT V V V A mA S S S MAGNETIC CHARACTERISTICS PARAMETR Operate Point Release Point Hysteresis SYMBOL BOP BRP BHYS Ta= 25 MIN MAX 100 -100 50 200 Ta= 0 ~ +70 MIN MAX 100 -100 30 200 UNIT G G G HYSTERESIS CHARACTERISTICS RP OFF Output Voltage in Volts Output Voltage i n Volts OFF OP ON OP RP ON -200 -100 0 100 200 -200 -100 0 100 200 Magnetic Flux Density in Gauss Magnetic Flux Density in Gauss UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 5 QW-R118-003,B H654 TYPICAL APPLICATION CIRCUIT LINEAR INTEGRATED CIRCUIT UTC H654 coil1 coil2 1 + - Vcc 23 4 Brushless DC Fan TEST CIRCUIT 14V UTC H654 DO RL1 820 RL2 820 CL2 20pF DOB CL1 20pF UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 5 QW-R118-003,B H654 PERFORMANCE CHARACTERISTICS Ta( ) PD (mW) 25 550 50 525 60 515 70 505 80 485 85 475 90 465 LINEAR INTEGRATED CIRCUIT 95 455 100 445 105 425 110 405 115 385 120 365 Power Dissipation Curve 600 500 PD (mW) 400 300 200 100 0 25 50 75 Ta ( ) Typical Magnetic Switch Point VS.Supply Voltage 120 BHYS 100 125 150 Flux Density (G) 80 BOP 40 0 BRP -40 5 12 Supply Voltage (V) Typical Supply Current versus Supply Voltage 20 24 Supply Current (mA) 16 14 12 10 8 6 4 2 0 0 Ta=25 Ta=80 Ta=-20 5 10 Supply Voltage (V) 15 20 25 UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 5 QW-R118-003,B |
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