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| Data Sheet 2-PHASE HALF-WAVE HIGH VOLTAGE MOTOR PRE-DRIVER General Description The AM4406 is a 2-phase, half-wave motor predriver fabricated for fan motors. This IC is equipped with lock shutdown, automatic restart and rotation detection (RD) function. The lock shutdown function turns off the output current when the motor is under lock condition. And when the motor is unlocked, the IC will automatically restart and allow DC fan to run. In addition, the RD function is to detect the motor status. The AM4406 is available in SOIC-8 package. * * * * High Voltage, High Current Brushless DC Fan Power Supply and Switchboards Communications Facilities Industrial Equipment AM4406 Features * * * * * * Hall Inputs with a Hysteresis Lock Shutdown and Automatic Restart Rotation Detection (RD) Output Supply Voltage: 4 to 28V Output Current: 70mA Max. Operating Temperature: -30 to 85oC Applications SOIC-8 Figure 1. Package Type of AM4406 Apr. 2007 Rev. 1. 2 1 BCD Semiconductor Manufacturing Limited Data Sheet 2-PHASE HALF-WAVE HIGH VOLTAGE MOTOR PRE-DRIVER Pin Configuration M Package (SOIC-8) AM4406 VCC HS (+) RD HS (-) 1 2 3 4 8 7 6 5 OUT1 OUT2 CT GND Figure 2. Pin Configuration of AM4406 (Top View) Pin Description Pin Number 1 2 3 4 5 6 7 8 Pin Name VCC HS (+) RD HS (-) GND CT OUT2 OUT1 Power supply Hall input (+) Rotation detection Hall input (-) Ground Timing capacitor Driver output 2 Driver output 1 Function Apr. 2007 Rev. 1. 2 2 BCD Semiconductor Manufacturing Limited Data Sheet 2-PHASE HALF-WAVE HIGH VOLTAGE MOTOR PRE-DRIVER Functional Block Diagram AM4406 VCC 1 Pre-driver 1 8 OUT1 OUT2 Reg Pre-driver 2 7 HS (+) 2 Hall Amp 3 6 Control Logic CT RD Lock Detector Automatic Restart Comparator 5 HS (-) 4 GND Comparator Figure 3. Functional Block Diagram of AM4406 Apr. 2007 Rev. 1. 2 3 BCD Semiconductor Manufacturing Limited Data Sheet 2-PHASE HALF-WAVE HIGH VOLTAGE MOTOR PRE-DRIVER Ordering Information AM4406 AM4406 Circuit Type E1: Lead Free TR: Tape and Reel Blank: Tube Package M: SOIC-8 Package SOIC-8 Temperature Range -30 to 85oC Part Number AM4406M-E1 AM4406MTR-E1 Marking ID AM4406M AM4406M Packing Type Tube Tape & Reel BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Apr. 2007 Rev. 1. 2 4 BCD Semiconductor Manufacturing Limited Data Sheet 2-PHASE HALF-WAVE HIGH VOLTAGE MOTOR PRE-DRIVER Absolute Maximum Ratings (Note 1) Parameter Supply Voltage Output Current Power Dissipation Storage Temperature Range ESD (Human Body Model) ESD (Machine Model) Symbol VCC IOUT PD TSTG ESD ESD Value 30 70 550 (Note 2) -55 to 125 3000 300 Unit V mA mW o AM4406 C V 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. Note 2: Reduced by 5.5mW/oC when TA is over 25oC. Recommended Operating Conditions Parameter Supply Voltage Hall Input Voltage (+) (Note 3) Hall Input Voltage (-) (Note 3) Operating Temperature Symbol VCC VHS (+) VHS (-) TA Min 4 1.0 1.0 -30 Max 28 VCC-0.5 VCC-0.5 85 Unit V V V o C Note 3: Hall input voltage range includes the amplitude of signal. Apr. 2007 Rev. 1. 2 5 BCD Semiconductor Manufacturing Limited Data Sheet 2-PHASE HALF-WAVE HIGH VOLTAGE MOTOR PRE-DRIVER Electrical Characteristics (VCC=12V, TA=25oC, unless otherwise specified.) Parameter Supply Current Hall Amplifier Input Hysteresis (+) Hall Amplifier Input Hysteresis (-) CT Charge Current CT Discharge Current CT Charge and Discharge Ratio CT Clamp Voltage CT Comparator Voltage OUT1 High Level Voltage OUT2 High Level Voltage RD Output Low Level Voltage RD Current Capacity Symbol ICC VHYS (+) VHYS (-) ICHG IDHG RCD VCL VCP VOH1 VOH2 VRDL IRD IOUT1=10mA IOUT2=10mA IRD=5mA VRD=2V 8 No load Zero to peak including offset and hysteresis Zero to peak including offset and hysteresis VCT=1.5V VCT=1.5V ICHG/ IDHG 3 -3 2 0.35 3 2.2 0.4 10 10 3.45 0.8 4.5 2.6 0.6 10.5 10.5 0.2 18 0.5 Conditions Min Typ 3.2 Max 5.0 15 -15 5.25 1.45 8 3 0.8 V V V V V mA Unit mA mV mV A A AM4406 Apr. 2007 Rev. 1. 2 6 BCD Semiconductor Manufacturing Limited Data Sheet 2-PHASE HALF-WAVE HIGH VOLTAGE MOTOR PRE-DRIVER Typical Performance Characteristics AM4406 6.0 12.0 5.5 No Load 11.6 VCC=12V Supply Current (mA) Output Voltage (V) 5.0 11.2 4.5 4.0 10.8 3.5 10.4 3.0 2.5 0 10.0 5 10 15 20 25 30 0 20 40 60 80 100 Supply Voltage (V) Output Current (mA) Figure 4. Supply Current vs. Supply Voltage Figure 5. Output Voltage vs. Output Current 50 2.5 VCC=12V 40 2.0 VCC=12V RD Low Voltage (V) RD Current (mA) 30 1.5 20 1.0 0.5 10 0.0 0 0 4 8 12 0 4 8 12 16 20 RD Supply Voltage (V) RD Current (mA) Figure 6. RD Current vs. RD Supply Voltage Figure 7. RD Low Voltage vs. RD Current Apr. 2007 Rev. 1. 2 7 BCD Semiconductor Manufacturing Limited Data Sheet 2-PHASE HALF-WAVE HIGH VOLTAGE MOTOR PRE-DRIVER Typical Performance Characteristics (Continued) AM4406 800 700 600 500 400 300 200 100 0 0 20 40 60 80 85 O Package: SOIC-8 Power Dissipation (W) 100 120 Ambient Temperature ( C) Figure 8. Power Dissipation vs. Ambient Temperature Apr. 2007 Rev. 1. 2 8 BCD Semiconductor Manufacturing Limited Data Sheet 2-PHASE HALF-WAVE HIGH VOLTAGE MOTOR PRE-DRIVER Operating Diagram AM4406 Hall Input ON Motor Output OFF CT Motor Lock Cleared Motor Locked Motor Lock Detected TON High TOFF Reverts to normal operation RD Note 4: Automatic restart is performed in the following manner. A motor lock condition is detected when the hall signal stops switching. The output is ON when CT pin is being charged. C2 is the external capacitor of the CT pin. Output ON time and OFF time are determined by the capacitance of C2. Note 5: RD pin is ON during normal operation, and OFF when the motor is locked. It is an open collector output pin. TON = C2 * ( VCL - VCP ) (Sec.) ICHG TOFF = C2 * ( VCL - VCP ) (Sec.) IDHG Note 6: The RD pin may maintain HIGH level for a few hundred milliseconds when the power is turn on. Power RD A few hundred milliseconds Figure 9. Control Timing Diagram of AM4406 Apr. 2007 Rev. 1. 2 9 BCD Semiconductor Manufacturing Limited Data Sheet 2-PHASE HALF-WAVE HIGH VOLTAGE MOTOR PRE-DRIVER Typical Application AM4406 D2 D1 + VCC C1 L1 L2 R1 Hall Element R2 VCC OUT1 HS (+) OUT2 R4 Q1 Z11 Z1N Z21 Q2 R5 Z2N AM4406 HS (-) CT C2 VRD (Note 7) R6 RD GND RD Output Note 7: VRD should be equal or smaller than VCC. Figure 10. Typical Application of AM4406 Apr. 2007 Rev. 1. 2 10 BCD Semiconductor Manufacturing Limited Data Sheet 2-PHASE HALF-WAVE HIGH VOLTAGE MOTOR PRE-DRIVER Mechanical Dimensions SOIC-8 Unit: mm(inch) AM4406 7 4.700(0.185) 5.100(0.201) 1.350(0.053) 1.750(0.069) 0.320(0.013) 8 7 8 0.675(0.027) 0.725(0.029) D 5.800(0.228) 6.200(0.244) D 20:1 1.270(0.050) TYP 0.100(0.004) 0.300(0.012) R0.150(0.006) 0.800(0.031) 0.200(0.008) 1.000(0.039) 3.800(0.150) 4.000(0.157) 0 8 0.330(0.013) 0.510(0.020) 0.190(0.007) 0.250(0.010) 0.900(0.035) 1 5 R0.150(0.006) 0.450(0.017) 0.800(0.031) Apr. 2007 Rev. 1. 2 11 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. MAIN SITE BCD Semiconductor Manufacturing Limited - Wafer Fab Shanghai SIM-BCD Semiconductor Manufacturing Limited 800, Yi Shan Road, Shanghai 200233, China Tel: +86-21-6485 1491, Fax: +86-21-5450 0008 BCD Semiconductor Manufacturing Limited - IC Design Group Advanced Analog Circuits (Shanghai) Corporation 8F, Zone B, 900, Yi Shan Road, Shanghai 200233, China Tel: +86-21-6495 9539, Fax: +86-21-6485 9673 REGIONAL SALES OFFICE Shenzhen Office Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office Advanced Analog Circuits (Shanghai) Corporation Shenzhen Office Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen 518026, China Tel: +86-755-8826 7951 Fax: +86-755-8826 7865 Taiwan Office BCD Semiconductor (Taiwan) Company Limited 4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei, Taiwan Tel: +886-2-2656 2808 Fax: +886-2-2656 2806 USA Office BCD Semiconductor Corporation 30920 Huntwood Ave. Hayward, CA 94544, U.S.A Tel : +1-510-324-2988 Fax: +1-510-324-2788 |
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