FS213 P1/FS212 P2/FS212 P3/FS212 0V20V P4/FS212 FS213-A FS213-B P5/FS212 - Datasheet Archive

 

Technology 2 PHASE DC MOTOR DRIVE IC GENERAL DESCRIPTION The FS213, a 1-chip composed of hall sensor and output coil drivers,

 

FS213 FS213 Technology 2 PHASE DC MOTOR DRIVE IC GENERAL DESCRIPTION The FS213 FS213, a 1-chip composed of hall sensor and output coil drivers, applied to 2-phase DC motor. The high sensitivity of Hall effect sensor is suitable for motors from mini-type CPU coolers to blowers and DC fans. Typical operation current is 0.4A and operating voltage range is wide. FG signal, an open collector, provides a square waveform output for the detection of the motor speed. Lock shutdown, to connect with a capacitor, provides a programmable time of lock shutdown and re-start during the motor is locked. Using few external components, FS213 FS213, a high performance integrated IC, is designed for a 2-phase DC motor circuit. The circuit diagram of the typical application example is as below. FEATURES 1 chip hall sensor/drivers Wide operating voltage range: 4.0V~20V Output sink current up to 0.55A Low quiescent supply current under 5mA Built-in FG output, Lock Shutdown and Re-start function Package : TO-92SP-5 TO-92SP-5 TYPICAL APPLICATION CIRCUIT FTC S213 Shutdown Capacitor Rev0.1 Feb.18, 2002 P1/FS212 P1/FS212 FS213 FS213 Technology FUNCTIONAL BLOCK DIAGRAM 3 Regulator Hall Sensor Pre-driver AMP 4 Lock Shutdown & Re-start Circuits 5 1 2 MARK VIEW PIN DESCRIPTION NAME STATUS FG FTC S213 NO. DESCRIPTION 1 O Rotation speed output (O.C.) SC 2 3 4 5 I NO 1 2 Shutdown Control input A capacitor is connected to this pin to decide the lock shutdown and re-start timing. 3 O/P Coil driver output It is low state during the N magnetic field. /Power input SO 4 O/P Coil driver output It is low state during the S magnetic field. /Power input GND 5 P IC Ground Rev0.1 Feb.18, 2002 P2/FS212 P2/FS212 Technology FS213 FS213 ABSOLUTE MAXIMUM RATINGS Zener Breakdown Voltage (Vz) - 35V NO/SO Pin Voltage (VCP (Note 1) - 30V Peak Sink Current (Io) Hold Current- 550mA Continuous Current - 400mA Peak Reverse Current (IR) - 100mA FG Pin OFF voltage (VFG)- 30V FG Sink current (IFG)- 5mA SC Pin OFF voltage (VSC) - Vcc-0.7V Power Dissipation Ta=25 - 600mW Ta=70 - 450mW Operating Temperature Range - -20oC85 oC Storage Temperature Range - -65 oC150 oC Junction Temperature - Lead Temperature (Soldering, 10 sec) - +150 oC +230 oC Note1: VCP mean Coil Power Rev0.1 Feb.18, 2002 P3/FS212 P3/FS212 FS213 FS213 Technology DC ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL TEST CONDITIONS Minimum Operating Voltage VCP No use pin is open (Fig1) Maximum Operating Voltage VCP Quiescent Supply current ICP NO/SO Saturation Voltage VSAT FG OFF Leakage Current FG ON Saturation Voltage ICP10mA No use pin is open (Fig1) No use pin is open VCP : 4.0V20V 0V20V (Fig1) MIN TYP MAX UNIT 4.0 V 20.0 V 2.0 6.0 mA Io = 300mA (Fig1) 1.5 V IOFF (Fig2) 1 A VON IC=5mA(Fig2) 0.2 0.5 V Output Reset Voltage VSCRST 0.3 V Output Off Voltage VSCOFF SC capacitor is 1F (Fig2) 0.7 V Output Re-start Voltage VSCRS 1.9 V 1 A SC Charged Current Note: ICHG (Fig3) Fig1 The IC output state is under N magnetic field. AC ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Rise time (tr) RL=1K CL=10pF (Fig3) 500 nS Fall time (t) RL=1K CL=10pF (Fig3) 500 nS (tPHL / tPLH ) RL=1K CL=10pF (Fig3) Propagation delay time Response frequency S kHz Rev0.1 Feb.18, 2002 P4/FS212 P4/FS212 FS213 FS213 Technology MAGNETIC CHARACTERISTICS FS213-A FS213-A Ta=2085 PARAMETER MIN TYP MAX UNIT Bop +60 G Brp -60 G Bhys 120 FS213-B FS213-B Ta=2085 PARAMETER MIN TYP MAX UNIT Bop +90 G Brp -90 G Bhys 180 VNO VSO V -60 ( -90 NO V +60 , +90) PIN B -60 ( -90 SO +60 , B +90) PIN Rev0.1 Feb.18, 2002 P5/FS212 P5/FS212 FS213 FS213 Technology TEST CIRCUITS: R1 R2 V2 V1 FS213 FS213 A V V VSAT NC ICP VCP 0.3V Fig 1 Test Circuit FS213 FS213 R2 V1 R1 A V V 1uF Fig 2 Test Circuit RL RL FS213 FS213 V1 1uF 10PF 10PF NC Fig 3 Test Circuit Rev0.1 Feb.18, 2002 P6/FS212 P6/FS212 FS213 FS213 Technology FUNCTION DESCRIPTIONS Hall Sensor Location The figure 4 is the hall sensor location, where marks the IC number. The best sensitivity, which can be intensified as much as possible, depends on the vertical distance and position between magnetic pole and the hall sensor (figure 5). For the 2-phase motor, this design is very important. X Y UNIT X 1.90 mm Y 1.35 mm Fig 4 FS213 FS213 Hall Sensor Location N S d Fig 5 Magnetic Distribution Rev0.1 Feb.18, 2002 P7/FS212 P7/FS212 FS213 FS213 Technology Darlington-pair Transistor Output The figure 6 is the circuit diagram of Darlington-pair transistor. Under the heavy current loading, the power loss of the high saturation voltage can be calculated into the following formula: Pc= (VBEQ1+VCE(SAT)Q2) * IO According to the IC package and the curve of the power loss, the Pc should be applied to and within the safety value. 30V is the voltage of Zener breakdown diode. However, if the voltage, excluding that of the power supply, is more than 30V under the long-time operation, the diode will be destroyed. 3,4 + Q2 _ VCE(SAT) Q1 + VBE _ Fig 6 Darlington-pair Transistor Output Rev0.1 Feb.18, 2002 P8/FS212 P8/FS212 FS213 FS213 Technology FG Output: The Circuit Diagram of Open Collector Transistor Figure 7 the small signal transistor output connected with the pull-up resistance is to limit the current and confirm the voltage level of rotation speed. The situation of the long-time operation with the high voltage or with the high current will do damage to the transistor and cause FG malfunction. Figure 8 illustrates the relation between dynamic magnetic field and FG. VC R Pull-up resistance 1 FG output Fig 7 FG Circuit Diagram N pole 0 S pole VFG (Depend on supply voltage) 0V Fig 8 FG Waveform Rev0.1 Feb.18, 2002 P9/FS212 P9/FS212 FS213 FS213 Technology Lock Shutdown and Re-start Circuits and Timing Diagram Figure 9 the shutdown control (SC) pin input connected with the capacitor to decide the shutdown to re-start time with internal charge current and reset circuit. The capacitor is charged to "A" point and shutdown (Figure 10, typical value is 0.7V) by an internal constant current source as a situation of the motor is locked for a long-time condition cause DC motor malfunction. And the capacitor is discharged to "C" point (Figure 10,typical value is 0.3V) until internal circuits detect a re-start threshold voltage ("B" point, typical value is 1.9V), and then FS213 FS213 would let the motor have a torque for rotation. The calculated formula of shutdown timing is : t =C v i i = 1uA , v = (1.9-0.7) Figure 10 illustrates the relation of FS213 FS213 output stages and SC pin timing waveform. Internal Constant Current Source O/P Off O/P On 0.7V SC pin 1.9V 2 C1 0.47uF Discharge Circuit Fig 9 SC Block Diagram Shutdown Re-start Shutdown NO pin SO pin B A SC pin C Fig 10 Timing Diagram Rev0.1 Feb.18, 2002 P10/FS212 P10/FS212 FS213 FS213 Technology APPLICATION NOTE The Example of Typical Application Circuit Figure 11 is the example of typical application circuit. The red, yellow, and black wires are the input points of the motor system: red, the input of power supply; yellow, the output of FG; black, the ground signal. RC is an external pull-up resistance for the use of measuring FG signal. In view of the design, the value of RC could be decided by the transistor saturation voltage (VON), sink current (IC), and off-level voltage (VC). The formula is: R C= VC - VON IC For example: VC = +5V for TTL level. IC = 5mA at 0.2V saturation voltage The safety value of RC= 1k D1 is the reverse protection diode. As if the red and black wires connect with the power source reversely, the current will flow through the ground via IC and coils L1 and L2 to power supply. Under such kind of circumstances, the IC and coils are easy to be burned out. Therefore, D1, the reverse protection diode is necessary for the design. However, D1 will also cause an extra voltage drop on the supply voltage. C1 is a capacitor to reduce the ripple noise caused during the transient of the output stages. The volume of the ripple noise depends on the coil impedance and characteristics. VCC D1 R wire B wire C1 SC TIMING CAP. Vc Rc NO FS213 FS213 GND FG L1 L2 SO 2.2uF FG Output Y wire Internal circuit of 2-phase DC motor Fig 11 Application Circuit Rev0.1 Feb.18, 2002 P11/FS212 P11/FS212 FS213 FS213 Technology PACKAGE OUTLINE 5.22 ± 0.05 (0.206 ± 0.002) 3- 5d 4- 7d eg . eg . 4.2 ± 0.1 0.165 ± 0.004 1.55 ± 0.1 (0.061± 0.002) 3.65 ± 0.1 (0.144 ± 0.002) 0.73 ± 0.1 (0.029 ± 0.0012) 14.3 ± 0.3 0.457 ± 0.025 (0.018 ± 0.001) mm (inch) 0.95 ± 0.03 0.037 ± 0.001 0.38 ± 0.013 0.38 ± 0.025 (0.015 ± 0.001) (0.015 ± 0.001) Rev0.1 Feb.18, 2002 P12/FS212 P12/FS212