AM4961 DIODES | Alldatasheet

Document overview

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Technical content

Features

  • Built-in Hall Bias Circuit
  • Built-in PWM Speed Control Circuit
  • Built-in Minimal Speed Setup Circuit
  • Rotation Speed Indication (FG)
  • Rotation or Lock State Indication (RD)
  • Built-in Thermal Shutdown Circuit
  • Lock Protection
  • Output Current Limit Application
  • CPU Cooler Fan in PC
  • Brushless DC Motor Driver

Figure 1. Package Types of AM4961

Figure 2. Pin Configuration of AM4961 (Top View)

May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited SINGLE PHASE FULL WA VE DIRECT PWM MOTOR DRIVER AM4961 Pin Number Pin Name Function HTSSOP-14 SSOP-16 1 1 OUT2 Driver output 2

2 NC No connection

3 4 VMIN Minimum duty setting 4 5 VPWM Adjustable Input 5 6 COSC Oscillator capacitor 6 7 FG Rotation speed indicator 7 8 RD Rotation/lock state indicator 8 9 HIN+ Hall sensor input + 9 10 HB Hall sensor bias regulator 10 11 HIN- Hall sensor input - 11 12 VREF Reference voltage regulator 12 13 CT Lock and rotation se tting capacitor terminal 13 14 GND Ground for control circuit 14 15 OUT1 Driver output 1

16 PGND Power ground

Figure 3. Functional Block Diagram of AM4961

May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited SINGLE PHASE FULL WA VE DIRECT PWM MOTOR DRIVER AM4961 HIN- HIN+ COSC (Note 1) CT OUT1 OUT2 FG RD Mode HL H L HLL L Rotation (Drive) LH LH O F F HL L OFF L L Rotation (Recirculate) LH L O F F O F F HL H H HO F FL OFF Lock Protection L H OFF H OFF HL L OFF OFF L L H OFF OFF OFF Truth Table Note 1: VOSC (H) >VPWM, VOSC (L) <VPWM. Package Temperature Range Part Number Marking ID Packing TypeLead Free Green Lead Free Green SSOP-16 -30 to 90oC AM4961GS-E1 AM4961GS-G1 AM4961GS AM4961GS-G1 Tube AM4961GSTR-E1 AM4961GSTR-G1 AM 4961GS AM4961GS-G1 Tape & Reel HTSSOP-14 AM4961GH-E1 AM4961GH-G1 AM4961GH AM4961GH-G1 Tube AM4961GHTR-E1 AM4961GHTR-G1 AM4961GH AM4961GH-G1 Tape & Reel Circuit Type Package GS: SSOP-16 E1: Lead Free AM4961 - TR: Tape and Reel Blank: Tube

Ordering Information

GH: HTSSOP-14 G1: Green BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with "G1" suffix are available in green packages.

SINGLE PHASE FULL WA VE DIRECT PWM MOTOR DRIVER AM4961 Data Sheet May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited Parameter Symbol Value Unit Supply V oltage V CC 18 V Output Current I OUT 1.0 A Output V oltage V OUT 18 V HB Output Current I HB 10 mA VPWM Input V oltage V PWM 6V RD Output V oltage V RD 18 V FG Output V oltage V FG 18 V RD Output Current I RD 10 mA FG Output Current I FG 10 mA Power Dissipation (Note 3) P D SSOP-16 0.8 W HTSSOP-14 1.1 W Storage Temperature Range T STG -55 to 150 oC ESD (Human Body Model) ESD 2000 V ESD (Machine Model) ESD 250 V Note 2: Stresses greater than those li sted under "Absolute Maximu m Ratings" may cause permanen t damage to the device. These are stress ratings only, and functiona l 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 3: TA=25oC, no external heatsink. Parameter Symbol Min Typ Max Unit Supply V oltage V CC 3.5 12 16 V Hall Input V oltage + (Note 4) V IN+ 0.2 3 V Hall Input V oltage - (Note 4) V IN- 0.2 3 V Ambient Temperature T A -30 90 oC Recommended Operating Conditions Absolute Maximum Ratings (Note 2) Note 4: Hall input voltage range includes the amplitude of signal.

May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited SINGLE PHASE FULL WA VE DIRECT PWM MOTOR DRIVER AM4961 Parameter Symbol Conditions Min Typ Max Unit Quiescent Current IQ1 Lock Off 10.2 15 18.76 mA IQ2 Lock On 5.38 8 10.55 VREF V oltage VREF IREF=5mA 5.8 6 6.2 V Output Saturation V oltage at High Side VSATH ISOURCE=200mA 1.0 1.17 V Output Saturation V oltage at Low Side V SATL ISINK=200mA 0.2 0.3 V COSC Frequency fOSC COSC=100pF 18 25 32 kHz COSC High Level V oltage VOSCH 3.45 3.6 3.75 V COSC Low Level V oltage VOSCL 1.83 1.95 2.07 V Hall Input Hysteresis VHYS ±10 ±20 mV Hall Bias V oltage VHB IHB=5mA 1.1 1.25 1.4 V CT High Level V oltage VCTH 3.55 3.7 3.88 V CT Low Level V oltage VCTL 1.55 1.7 1.85 V CT Charge Current ICHG 1.5 2 2.85 μA CT Discharge Current IDHG 0.14 0.2 0.285 μA CT Charge and Discharge Ratio RCD ICHG/IDHG 8.5 10 14.5 FG Output Low Level V oltage VFGL IFG=5mA 0.2 0.3 V FG Leakage Current ILFG VFG=12V 30 μA RD Output Low Level V oltage VRDL IRD=5mA 0.2 0.3 V RD Leakage Current ILRD VRD=12V 30 μA (VCC=12V , TA=25oC, unless otherwise specified.)

Electrical Characteristics

Figure 8. Power Dissipation vs. Ambient Temperature Figure 9. Power Dissipation vs. Ambient Temperature

oscillating voltage and VMIN pin voltage. VPWM voltage is decided by variation of PWM duty.

  1. Variable Speed Setting Mode

and motor speed becomes lower. Vice versa. Figure 10. Operating Diagram of AM4961 (Note 5)

Figure 11. Typical Application of AM4961 (Note 6) nect with Hall stage whic h has about 20mV hysteresis. Thus, the ideal Hall input is 50mV or over. CP is 100pF, the COSC frequency will be 25kHz. rotation mode and high when stopped. This pin is available to output a 1.25V Hall bias voltage. minimum duty cycle will be 10%.

SINGLE PHASE FULL WA VE DIRECT PWM MOTOR DRIVER AM4961 Data Sheet May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited Mechanical Dimensions SSOP-16 Unit: mm(inch) 3.800(0.150) 4.000(0.157) 0.200(0.008) 0.300(0.012) 0.800(0.031) 0.635(0.025) BSC 0.100(0.004) 0.250(0.010) 1.350(0.053) 1.750(0.069) 0.400(0.016) 1.270(0.050) 4.700(0.185) 5.100(0.201) 5.800(0.228) 6.200(0.244) 0.650(0.026) 0.750(0.030) 0.200(0.008) 0.250(0.010) 1.350(0.053) 1.550(0.061) 0.020(0.001) 0.050(0.002) R0.150(0.006) R0.150(0.006) 0.250(0.010)SEE DETAIL A 0.150(0.006) 0.250(0.010) Φ DETAIL A Note: Eject hole, oriented hole and mold mark is optional.

May. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited SINGLE PHASE FULL WA VE DIRECT PWM MOTOR DRIVER AM4961 6.350(0.250) 6.550(0.258) 1.470(0.058) 1.570(0.062) 1.450(0.057) 1.550(0.061) 0.750(0.030) 0.850(0.033) 0.650(0.026) BSC 1.300(0.051) BSC 6.200(0.244) 6.600(0.260) 0.340(0.013) 0.540(0.021) 1.200(0.047) MAX 0.050(0.002) 0.200(0.008) 0.900(0.035) 1.050(0.041) 4.300(0.169) 4.500(0.177) SEE DETAIL A 0.250(0.010) BSC R0.090(0.004) MIN R0.090(0.004) MIN 0.200(0.008) MIN 0.450(0.018) 0.750(0.030) 1.000(0.039) REF DETAIL A Note: Eject hole , oriented hole and mold mark is optional. 0.100(0.004) 0.150(0.006) 0.100(0.004) 0.190(0.007) BASE METAL Mechanical Dimensions (Continued) HTSSOP-14 Unit: mm(inch) Φ Φ

BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi- cations 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. - 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 MAIN SITE 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 - 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 BCD Semiconductor Manufacturing Limited http://www.bcdsemi.com BCD Semiconductor Manufacturing Limited IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi- cations 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. - Wafer Fab Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd.

800 Yi Shan Road, Shanghai 200233, China

Tel: +86-21-6485 1491, Fax: +86-21-5450 0008 MAIN SITE REGIONAL SALES OFFICE Shenzhen Office Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd., Shenzhen Office Unit A Room 1203, Skyworth Bldg., Gaoxin Ave.1.S., Nanshan District, Shenzhen, 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 Corp. 30920 Huntwood Ave. Hayward, CA 94544, USA Tel : +1-510-324-2988 Fax: +1-510-324-2788 - Headquarters BCD Semiconductor Manufacturing Limited No. 1600, Zi Xing Road, Shanghai ZiZhu Science-based Industrial Park, 200241, China Tel: +86-21-24162266, Fax: +86-21-24162277