SK6406 UTC | Alldatasheet
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UNISONIC TECHNOLOGIES CO., LTD SK6406/G LINEAR INTEGRATED CIRCUIT www.unisonic.com.tw 1 of 6 Copyright © 2005 Unisonic Technologies Co., Ltd QW-R109-026,A 2-PHASE DC-FAN MOTOR PRE-DRIVER IC DESCRIPTION SK6406 is a 2-phase pre-driver IC for dc-fan motors, providing the functions of motor lock protection, auto-restart, and rotation detection signal output. SK6406 is with RD option and SK6406G with FG. FEATURES * Wide supply voltage range of 2.5V to 30V * Lock protection * Auto-restart when the motor lock is undone * RD(latch-type lockup detection) output (SK6406) * FG(frequency generator) output (SK6406G) APPLICATION * Dual Coil DC FAN Motor SOP-8 *Pb-free plating product number: SK6406L/SK6406GL ORDERING INFORMATION Order Number Normal Lead Free Plating Package Packing SK6406-S08-R SK6406L-S08-R SOP-8 Tape Reel SK6406-S08-T SK6406L-S08-T SOP-8 Tube SK6406G-S08-R SK6406GL-S0 8-R SOP-8 Tape Reel SK6406G-S08-T SK6406GL-S08-T SOP-8 Tube
SK6406/G LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 2 of 6 www.unisonic.com.tw QW-R109-026,A PIN CONFIGURATION
SK6406/G LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 3 of 6 www.unisonic.com.tw QW-R109-026,A BLOCK DIAGRAM REGULATOR CONTROL BLOCK LOCK PROTECTION AUTORESTART BLOCKGND OUT2 OUT1 RD (SK6406) Vcc CT Hysteresis amplifier LOCK DET FG (SK6406G)
SK6406/G LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 4 of 6 www.unisonic.com.tw QW-R109-026,A ABSOLUTE MAXIMUM RATINGS (Ta = 25℃) PARAMETER SYMBOL RATINGS UNIT Supply Voltage V CC 2.5V ~ 30V V Hall Input Common Mode Voltage Range V HIC 1.0 ~ Vcc-0.5 V Circuit Current I OUT 80 mA Power Dissipation P D 700 mW Operating Ambient Temperature T OPR -20 ~ +85 ℃ Storage Temperature T STG -55 ~ +150 ℃ Note Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ELECTRICAL CHARACTERISTICS (Ta=25℃, VCC=12V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT CT=L 3.2 8.7 mACurrent Drain I CC In drive mode CT=H 3.2 5 mA Lockup Detection Capacitor Charge Current I CT1 V CT= 1.1V 2 3.45 5.25 uA Capacitor Discharge Current I CT2 V CT= 1.1V 0.35 0.8 1.45 uA Charge/Discharge Ratio R CT R CD=ICT1/ICT2 3 4.5 8 CT Charge Voltage V CT1 2.2 2.6 3 V CT Discharge Voltage V CT2 0.4 0.6 0.8 V Output High Level Voltage V OL I OUT= 10 mA 10 10.5 V Hall Input Sensitivity VHin Zero peak value (including offset and hysteresis) 3 15 mV RD Output Pin Low Voltage (SK6406) VRDL I RD=5mA 0.1 0.3 V RD Current Capacity (SK6406) IRD V RDL=2V 20 mA FG Low Voltage (SK6406G) VFGL I FG=5mA 0.1 0.3 V FG Driver Capacity (SK6406G) I FG V FGL=2V 20 mA FG Leakage Current (SK6406G) I FGL V FGL=15V 50 uA
SK6406/G LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 5 of 6 www.unisonic.com.tw QW-R109-026,A TYPICAL APPLICATION CIRCUIT(SK6406) *Same value of hall bias resistors is selected for R1 and R2 LOCKUP PROTECTION / AUTOMATIC RECOVERY
SK6406/G LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 6 of 6 www.unisonic.com.tw QW-R109-026,A 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.