AM4967 single-coil, single-phase motor predriver designed bipolar proc
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ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER MOTOR AM4967
AM4967 single-coil, single-phase motor predriver designed bipolar process. rotation speed controlled through external PWM. This requires external components merit high efficiency which make suitable great volume, large current high voltage applications. AM4967 available SSOP-16 package.
Features
Single-phase Full-wave Pre-drive Rotation Speed Control External Maximum Operating Current Limit Linear Start Function Reducing Large Current Impulse Moment Turn-on Minimum Rotation Speed Setting Lock Protection Auto Start Function Rotation Speed Indication Over Temperature Protection
Application
(Office Automation) Cooler Brushless Motor
SSOP-16
Figure Package Type AM4967
Jun. 2008 Rev.
Semiconductor Manufacturing Limited
ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER MOTOR AM4967
Configuration
Package (SSOP-16)
OUT2 OUT2B VMIN VPWM COSC FG/RD
OUT1 OUT1B VREF HIN+ HIN-
Figure Configuration AM4967
Jun. 2008 Rev.
Semiconductor Manufacturing Limited
ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER MOTOR AM4967
Description
Number Name OUT2 OUT2B Function Second channel P-type driver output. Open-drain output, must connected with pull-up resistor drive external power devices operation Second channel N-type driver output. Push-pull output drive external power devices Power supply Current limiter indicator. Fixed 0.2V internally. Maximum allowable current decided external sample resistance. When voltage this exceeds 0.2V, output will shut down current limit. this function used, connect this ground directly Minimum speed setting terminal. Connect VREF when disused. case tied other power supply controlling, isolated resistor necessary Speed control terminal. full speed mode when connected ground. speed controlled mode, frequency control signal 20kHz 100kHz. Moreover, pass network necessary transfer level basic oscillation frequency generator when connected with capacitor 220pF. 30kHz frequency available. "FG" means output signal which used detecting rotation speed. "RD" means output signal, used detecting rotate-stop state. "FG" "RD" selected according requirement. This need connected with pull-up resistor when used. pulse will generated once input signal changed. Keep this open when used Hall sensor negative input. prevent noise, this recommended placed close possible Hall circuit. necessary, capacitor added between HIN+ HIN- reduce influence caused noise Hall sensor positive input. avoid noise, this recommended placed close possible Hall circuit Lock protection auto start frequency generator. connected with external 0.47µF capacitor which decides lock-rotate time start time. lock-rotate protection function disused, please connect this Linear start terminal. This connected VREF externally capacitor 0.47µF which enables start steadily. Start time dependent capacitance. linear start function used, connect this ground voltage reference Ground circuit control First channel N-type driver output. Push-pull output drive external power devices First channel P-type driver output. Open-drain output, must connected with pull-up resistor drive external power devices operation
VMIN
VPWM
COSC
FG/RD
HIN-
HIN+
VREF OUT1B OUT1
Jun. 2008 Rev.
Semiconductor Manufacturing Limited
ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER MOTOR AM4967
Functional Block Diagram
Lock Shutdown Auto Restart
FG/RD
Thermal Shutdown
VREF
Reference
OUT1B OUT1 OUT2B OUT2
Controller HIN+ HIN10
Predriver
Hysteresis
Hysteresis Oscillation
VMIN VPWM
COSC
Figure Functional Block Diagram AM4967
Jun. 2008 Rev.
Semiconductor Manufacturing Limited
ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER MOTOR AM4967
Truth Table Driver-lock. VOSC High, VPWM, VVMIN low.
HINH HIN+ Lock Protection OUT2 OUT1 (Driver) OUT1 OUT1B OUT2 OUT2B FG/RD OUT1 Mode OUT2 (Driver)
Speed control. VCT, low.
VPWM, VMIN COSC HINH HIN+ OUT1 OUT1B OUT2 OUT2B Regenerative OUT1 OUT2 Mode OUT2 (Driver) OUT1 (Driver)
Ordering Information
AM4967 Circuit Type Blank: Package SSOP-16
Temperature Range Part Number Lead Free AM4967GS-E1 AM4967GSTR-E1 SSOP-16 105oC AM4967RGS-E1 AM4967RGS-G1 AM4967RGS AM4967RGS-G1 Tube Tape Reel AM4967RGSTR-E1 AM4967RGSTR-G1 AM4967RGS AM4967RGS-G1 Green AM4967GS-G1 AM4967GSTR-G1 Marking Lead Free AM4967GS AM4967GS Green AM4967GS-G1 AM4967GS-G1 Packing Type Tube Tape Reel
Lead Free Green Tape Reel Blank: Tube
Package
Semiconductor's Pb-free products, designated with "E1" suffix part number, RoHS compliant. Products with "G1" suffix available green package.
Jun. 2008 Rev.
Semiconductor Manufacturing Limited
ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER MOTOR AM4967
Absolute Maximum Ratings (Note
Parameter Supply Voltage OUT1B/OUT2B Output Current OUT1/OUT2 Sink Current OUT1B/OUT2B/OUT1/OUT2 Withstand Voltage VPWM/VMIN Withstand Voltage Withstand Voltage FG/RD Withstand Voltage FG/RD Output Current VREF Output Current Power Dissipation (Note Storage Temperature Range (Human Body Model) Symbol IOUTB IOUT VOUT VPWM/VVMIN VFG/VRD IFG/IRD IREF TSTG Value 2000 Unit
Note Stresses greater than those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated under "Recommended Operating Conditions" implied. Exposure "Absolute Maximum Ratings" extended periods affect device reliability. Note When mounted specified printed circuit board glass epoxy).
Recommended Operating Conditions
Parameter Supply Voltage VPWM/VMIN Input Voltage Hall Input Voltage Ambient Temperature Symbol Unit
Jun. 2008 Rev.
Semiconductor Manufacturing Limited
ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER MOTOR AM4967
Electrical Characteristics
(VCC=12V, TA=25oC, unless otherwise specified.)
Parameter Quiescent Current VREF Reference Voltage Current Limit Voltage COSC High Level Voltage COSC Level Voltage COSC Frequency High Level Voltage Level Voltage Charge Current Discharge Current Charge Discharge Ratio Linear Start Charge Current OUT1B/OUT2B High Level Voltage OUT1B/OUT2B Level Voltage OUT1/OUT2 Level Voltage Signal Hall Input Sensitivity Saturation Voltage Leakage Current VPWM/VMIN Bias Current VREF VLIM VOSCH VOSCL fOSC VCTH VCTL ICHG IDHG VOBH VOBL VSAT ILFG IPWMB/IVMINB VCT=0.5V VCT=3.5V ICHG/IDHG VLS=1V IOUT=10mA IOUT=10mA IOUT=10mA IHIN+, IHIN- difference voltage (include offset hysteresis) ISINK=5mA VFG=VCC VOSC=VPWM/VVMIN=2V VCC1.8 CL=220pF Lock IOUT=5mA 25.4 0.13 VCC0.9 0.45 35.5 0.25 14.5 Symbol Lock Conditions Unit
Jun. 2008 Rev.
Semiconductor Manufacturing Limited
ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER MOTOR AM4967
Typical Performance Characteristics
Supply Current (mA)
Supply Current (mA)
TA=25°C
VCC=12V
Supply Voltage
Ambient Temperature
Figure Supply Current Supply Voltage
Figure Supply Current Ambient Temperature
Reference Voltage
Reference Voltage
VCC=12V IOUT=5mA
VCC=12V TA=25
Ambient Temperature
Output Current (mA)
Figure Reference Voltage Ambient Temperature
Figure Reference Voltage Output Current
Jun. 2008 Rev.
Semiconductor Manufacturing Limited
ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER MOTOR AM4967
Typical Performance Characteristics (Continued)
1000
Power Dissipation (mW)
Ambient Temperature (°C)
Figure Power Dissipation Ambient Temperature
Jun. 2008 Rev.
Semiconductor Manufacturing Limited
ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER MOTOR AM4967
Operating Diagram
VPWM Voltage
fOSC=30kHz (COSC=220pF) VMIN Voltage
ON-Duty-Large
3.0V
COSC Voltage ON-Duty-Small
1.0V
Minimum Speed Setup Rotation (Stop Mode)
Speed
Adjustable Speed
High Speed
Full Speed
Figure Operating Diagram AM4967 (Speed Control, Note
Note Minimum Speed Setting Mode (Stop Mode) When rotate speed, lowest speed settable VMIN voltage. not, motor stops. Speed High Speed Setting Mode control system works comparing voltage VPWM COSC (1.0V 3.0V). When VPWM voltage low, transistors upper lower side outputs contrary, when VPWM voltage high, upper side transistors OFF. coil current re-circulates lower side transistor. Therefore, VPWM
voltage becomes lower, output duty becomes large. Sequentially, coil current increases motor runs high speed which monitored output while rotation-stop state monitored output. Full Speed Rotation Mode When VPWM voltage drops 1.0V lower, motor will full speed. speed controlled, VPWM=GND)
Jun. 2008 Rev.
Semiconductor Manufacturing Limited
ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER MOTOR AM4967
Operating Diagram (Continued)
Voltage 3.0V VMIN Voltage
COSC
VPWM Voltage 1.0V
Lock Protection
Linear Start
VPWM Setting Speed
100%
ON-Duty
Figure Operating Diagram AM4967 (Linear Start, VPWM Voltage<VMIN Voltage, Note
Voltage VPWM Voltage 3.0V VMIN Voltage
COSC
1.0V
Lock Protection
Linear Start
VMIN Setting Speed
100%
ON-Duty
Figure Operating Diagram AM4967 (Linear Start, VPWM Voltage>VMIN Voltage, Note
Jun. 2008 Rev.
Semiconductor Manufacturing Limited
ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER MOTOR AM4967
Operating Diagram (Continued)
Voltage VPWM Voltage 3.0V VMIN Voltage
COSC
1.0V
Lock Protection
Linear Start
VMIN Setting Speed
High Level Level
100%
ON-Duty
Figure Operating Diagram AM4967 (Note
Note inclination voltage adjusted between VREF according capacitance which recommended 0.1µF 1.0µF.
Jun. 2008 Rev.
Semiconductor Manufacturing Limited
ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER MOTOR AM4967
Typical Application
Power
More than 1µF/25V
OUT1
OUT2
More than 1µF/25V
VREF
10k~ 100k
FG/RD
Hall
AM4967
HINCS HIN+ OUT1 OUT1B VMIN OUT2 OUT2B
VPWM COSC
220pF =30kHz)
0.47µF
Figure Typical Application AM4967 (VCC=12V)
Jun. 2008 Rev.
Semiconductor Manufacturing Limited
ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER MOTOR AM4967
Mechanical Dimensions SSOP-16 Unit: mm(inch)
3.800(0.150) 4.000(0.157) 0.200(0.008) 0.300(0.012) 0.635(0.025) 4.700(0.185)
0.800(0.031)
5.100(0.201)
0.100(0.004) 1.000(0.039) 0.900(0.035) 0.250(0.010) 1.350(0.053) 1.750(0.069)
0.400(0.016) 5.800(0.228) 6.200(0.244) DETAIL 0.150(0.006) 0.250(0.010) 1.350(0.053) 1.550(0.061) R0.150(0.006) 1.270(0.050) 0.250(0.010)
R0.150(0.006)
0.200(0.008) 0.250(0.010)
0.650(0.026) 0.750(0.030)
0.020(0.001) 0.050(0.002) DETAIL
Jun. 2008 Rev.
Semiconductor Manufacturing Limited
Semiconductor Manufacturing Limited
http://www.bcdsemi.com
IMPORTANT NOTICE Semiconductor Manufacturing Limited reserves right make changes without further notice products specifications herein. Semiconductor Manufacturing Limited does assume responsibility products particular purpose, does Semiconductor Manufacturing Limited assume liability arising application products circuits. Semiconductor Manufacturing Limited does convey license under patent rights other rights rights others.
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