AH9481M8TR-G1

  Data Sheet Single Phase Low Noise Smart Motor Driver AH9479/80/81 General Description Features The AH9479/80/81 is a single chip solution for driving single coil brushless DC motors. It combines a motor driver with a high sensitivity Hall sensor, which simplifies the PCB design and makes the fabrication of small-size motors possible. • • • • • • • • • • The AH9480 has an open-drain tachometer output FG that follows the Hall sensor latching output. The AH9481 has an open-drain rotation detection output RD that is active low when the motor is spinning and goes high when blocked. Full Bridge Driver High Sensitivity Integrated Hall Sensor Soft-switching for Low Noise Low Supply Voltage: 2.5V Locked Rotor Protection and Auto-restart Thermal Protection Output Over-current Protection Short Circuit Protection Tachometer Output Signal (AH9480) Alarm Output Signal (AH9481) Applications When there is no motion about 0.4 second, the IC will automatically detect the locked rotor conditions, and enter protection mode, shutting off the motor driver for 4 seconds. Then, the IC will turn on the motor driver for 0.4 second to detect whether there is rotation condition, if fails, the IC will shut off motor driver for four seconds again. This sequence will be repeated until rotation condition is detected, and the IC enters normal operation. This feature can effectively prevent the IC from overheating and damage due to long-time locked rotor condition. “Soft-switch” is used to reduce the vibration and acoustic noise. Thermal-shutdown protection ensures that the motor driver operates under specified temperature ranges. • • • • • 5V/12V Low Noise BLDC Cooling Fans Low Voltage / Low Power BLDC Motors Notebook DC Fans / Blowers Automotive Low Noise Climate Control Fans Micro-motors The AH9479 is packaged in TO-94, and the AH9480/81 is packaged in TO-95 and MSOP-8. TO-94 TO-95 MSOP-8 Figure 1. Package Types of AH9479/80/81 Mar. 2012 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 1 Data Sheet Single Phase Low Noise Smart Motor Driver AH9479/80/81 Pin Configuration Z4 Package (TO-94) Z5 Package (TO-95) 4 GND 3 OUT2 2 OUT1 1 VCC 5 4 3 2 1 (For AH9479) GND OUT2 OUT1 VCC FG/RD (For AH9480/81) M8 Package (MSOP-8) NC 1 8 NC FG/RD 2 7 VCC GND 3 6 OUT2 OUT1 4 5 GND (For AH9480/81) Figure 2. Pin Configuration of AH9479/80/81 Pin Description Pin Number TO-95 MSOP-8 Pin Name 1 2 FG/RD 1 2 7 VCC Frequency generator (rotation detection) open drain output Power supply pin 2 3 4 OUT1 Output pin 1 3 4 6 OUT2 Output pin 2 4 5 3, 5 GND Ground pin 1, 8 NC TO-94 Mar. 2012 Function No connection Rev. 1. 1 BCD Semiconductor Manufacturing Limited 2 Data Sheet Single Phase Low Noise Smart Motor Driver AH9479/80/81 Functional Block Diagram A (B) {C} A for TO-94 B for TO-95 C for MSOP-8 Figure 3. Functional Block Diagram of AH9479/80/81 Mar. 2012 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 3 Data Sheet Single Phase Low Noise Smart Motor Driver AH9479/80/81 Ordering Information AH94 - Circuit Type G1: Green 79: AH9479 80: AH9480 81 :AH9481 TR: Tape & Reel Blank: Bulk Package Z4: TO-94 Z5: TO-95 M8 : MSOP-8 Package Temperature Range Output Signal TO-94 Part Number Marking ID Packing Type AH9479Z4-G1 9479Z4-G1 Bulk FG AH9480Z5-G1 9480Z5-G1 Bulk RD AH9481Z5-G1 9481Z5-G1 Bulk FG AH9480M8TR-G1 9480M8-G1 Tape & Reel RD AH9481M8TR-G1 9481M8-G1 Tape & Reel TO-95 -40 to 85qC MSOP-8 BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant and green. Mar. 2012 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 4 Data Sheet Single Phase Low Noise Smart Motor Driver AH9479/80/81 Absolute Maximum Ratings (Note 1) Parameter Symbol Value Unit VCC 18 V Peak Output Current IOUT_P 500 mA Continuous Output Current IOUT_C 300 mA FG/RD Pull-up Voltage VFG/VRD 18 V FG/RD Output Current IFG/IRD 10 mA Supply Voltage Power Dissipation Operating Ambient Temperature Storage Temperature Thermal Resistance (Junction to Ambient) TO-94 550 TO-95 600 MSOP-8 585 PD mW TA -40 to 85 ºC TSTG -55 to 150 ºC șJA TO-94 227 TO-95 208 MSOP-8 214 ºC/W ESD (Human Body Model) ESD 6000 V ESD (Machine Model) ESD 200 V Note 1: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability. Recommended Operating Conditions Parameter Symbol Min Max Unit Supply Voltage VCC 2.5 16 V Operating Ambient Temperature TA -40 85 ºC Mar. 2012 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 5 Data Sheet Single Phase Low Noise Smart Motor Driver AH9479/80/81 Electrical Characteristics VCC=12V, TA=25oC, unless otherwise specified. Parameter Supply Voltage Supply Current ON Resistance (RPMOS+RNMOS=RS) FG/RD Output Low Voltage FG/RD Output Leakage Current Locked Rotor Period (ON) Locked Rotor Period (OFF) Protection Temperature Symbol Conditions Min Typ Max Unit Operating, RCOIL=100ҏ:ǂ VCC ICC 2.5 16 12 V mA VCC=12V,TA=25ºC, IOUT=300mA VCC=12V,TJ=125ć,IOUT=300mA 4.3 3.3 3.3 IOL=5mA 0.18 0.5 V VFG (VRD)=5V 0.15 10 PA tON VCC>7V 0.4 s tOFF VCC>7V 4 s 175 ºC RDSON1_2 VOL ILEAKAGE TOTP : : Magnetic Characteristics VCC=12V, TA=25ºC, unless otherwise specified. Parameter Symbol Min Typ Max Unit Operating Point BOP 0 20 50 Gauss Releasing Point BRP -50 -20 0 Gauss Hysteresis BHYS Mar. 2012 40 Rev. 1. 1 Gauss BCD Semiconductor Manufacturing Limited 6 Data Sheet Single Phase Low Noise Smart Motor Driver AH9479/80/81 Test Circuit S Marking Side N AH9480/81 FG/RD VCC OUT1 OUT2 GND 1 5V 2 3 5 4 FG/RD VCC OUT1 (DO) OUT2 (DOB) C1 20pF C2 20pF Figure 4. Basic Test Circuit of AH9479/80/81 Mar. 2012 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 7 Data Sheet Single Phase Low Noise Smart Motor Driver AH9479/80/81 Hysteresis Characteristics VDO (OUT1 ) (V) VDOB (OUT2) (V) 16 16 14 14 12 12 10 10 8 8 6 6 4 4 VCC VCC 2 VSAT 0 -30 -20 -10 0 10 20 2 VSAT -30 30 -20 -10 0 0 10 20 30 Magnetic Flux Density B (Gauss) Magnetic Flux Density B (Gauss) Figure 5. VDO vs. Magnetic Flux Density Figure 6. VDOB vs. Magnetic Flux Density Typical Performance Characteristics 6.5 10 6.0 5.5 8 5.0 4.5 4.0 ICC (mA) ICC (mA) 6 4 2 With Magnet Without Magnet 3.5 3.0 2.5 2.0 VCC=3V 1.5 VCC=5V 1.0 VCC=12V 0.5 0.0 0 0 5 10 15 VCC=18V -25 20 0 25 50 75 100 O VCC (V) TA ( C) Figure 7. ICC vs. VCC Mar. 2012 VCC=14V Figure 8. ICC vs. TA Rev. 1. 1 BCD Semiconductor Manufacturing Limited 8 Data Sheet Single Phase Low Noise Smart Motor Driver AH9479/80/81 50 50 40 40 30 30 20 20 10 B (Gauss) B (Gauss) Typical Performance Characteristics (Continued) BOP BRP 0 VCC=5V 10 BOP BRP 0 BHYS BHYS -10 -10 -20 -20 4 6 8 10 12 14 16 18 20 -25 0 25 VCC (V) 50 75 100 125 O TA ( C) Figure 9. BOP/BRP/BHYS vs. VCC Figure 10. BOP/BRP/BHYS vs. TA (VCC=5V) 50 40 40 30 30 20 B (Gauss) B (Gauss) 20 10 VCC=12V BOP 0 BOP BRP 0 BHYS BRP -10 VCC=18V 10 -10 BHYS -20 -20 -25 0 25 50 75 100 125 -25 O 25 50 75 100 125 TA ( C) Figure 11. BOP/BRP/BHYS vs. TA (VCC=12V) Mar. 2012 0 O TA ( C) Figure 12. BOP/BRP/BHYS vs. TA (VCC=18V) Rev. 1. 1 BCD Semiconductor Manufacturing Limited 9 Data Sheet Single Phase Low Noise Smart Motor Driver AH9479/80/81 Typical Performance Characteristics (Continued) 8 10 VCC=3V, IOUT=100mA VCC=5V, IOUT=200mA 8 VCC=12V, IOUT=300mA 6 VCC=14V, IOUT=300mA VCC=18V, IOUT=300mA RS (:) RS (:) VCC=12V VCC=16V, IOUT=300mA 6 4 4 2 2 0 -25 0 25 50 75 100 125 150 200 250 O 300 350 400 450 IOUT (mA) TA ( C) Figure 13. RS vs. TA Figure 14. RS vs. IOUT 1100 300 1000 900 800 250 VCC=12V, IOUT=5mA 700 VCC=12V, TA=25 C 600 VSAT_FG (mV) VFG (mV) O 500 400 200 300 150 200 100 0 0 5 10 15 20 100 25 -25 IOUT (mA) 25 50 75 100 125 O TA ( C) Figure 15. VFG vs. IOUT Mar. 2012 0 Figure 16. VSAT_FG vs. TA Rev. 1. 1 BCD Semiconductor Manufacturing Limited 10 Data Sheet Single Phase Low Noise Smart Motor Driver AH9479/80/81 Typical Performance Characteristics (Continued) 600 600 Packages: TO-94 TO-95 400 300 200 100 0 -50 400 300 200 100 -25 0 25 50 75 100 125 150 0 -50 175 O Ambient Temperature ( C) -25 0 25 50 75 100 125 150 175 o Ambient Temperature ( C) Figure 17. Power Dissipation vs. TA Mar. 2012 Package: MSOP-8 500 Power Dissipation (mW) Power Dissipation (mW) 500 Figure 18. Power Dissipation vs. TA Rev. 1. 1 BCD Semiconductor Manufacturing Limited 11 Data Sheet Single Phase Low Noise Smart Motor Driver AH9479/80/81 Typical Application AH9479 VCC 1 OUT1 OUT2 2 3 GND 4 D1 R1 C1 D2 COIL Note 2:C1 should be at least larger than 2.2PF, R1=0 to 10: Figure 19. Typical Application of AH9479/80/81 Mar. 2012 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 12 Data Sheet Single Phase Low Noise Smart Motor Driver AH9479/80/81 Mechanical Dimensions TO-94 Mar. 2012 Rev. 1. 1 Unit: mm(inch) BCD Semiconductor Manufacturing Limited 13 Data Sheet Single Phase Low Noise Smart Motor Driver AH9479/80/81 Mechanical Dimensions (Continued) TO-95 Unit: mm(inch) 1.295(0.051) 1.803(0.071) 0.610(0.024) MIN 2.200(0.087) 2.400(0.094) 1.000(0.039) 1.200(0.047) 3.531(0.139) 3.785(0.149) Package Sensor Location (For Hall IC) 1.220(0.048) 1.620(0.064) 0.381(0.015) 0.581(0.023) 14.000(0.551) 16.000(0.630) 0.360(0.014) 0.510(0.020) 0.950(0.037) REF 0.330(0.013) 0.432(0.017) 5.105(0.201) 5.359(0.211) Mar. 2012 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 14 Data Sheet Single Phase Low Noise Smart Motor Driver AH9479/80/81 Mechanical Dimensions (Continued) MSOP-8 Unit: mm(inch) 0.300(0. 012) TYP P 0.150(0.006)TY 4.700(0.185) 5.100(0.201) 0.870(0.034) 1.070(0.042) Hall Sensor Location 2.900(0.114) 3.100(0.122) 1.350(0.053) 1.550(0.061) 0.410(0.016) 0.650(0.026) 0.650(0. 026) TYP 0.760(0.030) 0.970(0.038) 0.800(0.031) 1.200(0.047) 0.200(0.008) 2.900(0. 114) 3.100(0. 122) 0.000(0.000) 0e 6e ` Note: Eject hole , oriented hole and mold mark is optional . Mar. 2012 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 15 BCD Semiconductor Manufacturing Limited http://www.bcdsemi.com IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifications herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or other rights nor the rights of others. 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