FD1157H-G1

FEELING TECHNOLOGY FD1157H Smart motor driver with embedded Hall sensor Features






Motor driver with integrated Hall sensor Lock-shutdown protection & auto-restart function Precise magnetic switching thresholds “Soft-switch” phase-switching technique to reduce vibration and acoustic noise Thermal shutdown protection Available in SIP-4L packages For 12V systems Halogen Free General Description FD1157H is a two coil motor driver with embedded Hall sensor. It integrates the motor driver with the Hall sensor, which simplifies the PCB(printed circuit board) design and make the fabrication of small-size motors possible. Lock-shutdown and auto-restart function keeps the motor from being over-heated and restarts the motor after being locked. “Soft-switch” phase-switching technique is used to reduce the vibration and acoustic noise. Thermal-shutdown protection ensures the motor driver to operate under specified temperature ranges. All the protection mechanisms mentioned above combine to provide a complete protecting scenario for the motor system, keep the motor system from possible damages and guarantee correct operations. Block Diagram Bias Generator Hall Plate Chopper amplifier Coil Driver Oscillator Digital control logics Power On Reset Figure.1 This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Rev1.3 Nov. 21, 2008 P.1 FEELING TECHNOLOGY Pin Connection 1 FD1157H Marking Distinguish 1157H 1157H YMV-XX YMV-XX 2 3 4 Lot Number Mass Production Version Half month (ex:A,B ~ X) 8) VSS SO NO VDD Year (ex:2008 Figure.2 Figure.3 Pin Descriptions Name I/O FD1157H Description VSS G 4 Ground SO O 3 Driver output NO O 2 Driver output VDD P 1 Positive power supply Legend: I=input, O=output, I/O=input/output, P=power supply, G=ground Functional Descriptions Refer to the block diagram (Figure.1), FD1157H is composed of the following building blocks:
Bias generator The bias generator provides precise, temperature- and process-insensitive bias references for the analog circuit blocks. These references guarantee proper operation of the IC under all conditions specified in this specification.
Oscillator The built-in oscillator provides the clock signal for the digital control logics
Power-on Reset Used to detect the power-up ramp and reset the digital circuits to achieve correct operation as soon as the power is ready.
Chopper Amplifier To achieve a higher magnetic sensitivity the chopper amplifier structure is adopted in this design. Use of this structure dynamically removes both the offset and flicker noise at the same time.
Digital control logics  Hall sensor part – generates controlling signals for the Hall sensor.  Coil driver part – generates controlling signals for the Coil driver. Rev1.3 Nov. 21, 2008 P.2 FEELING TECHNOLOGY FD1157H Absolute Maximum Ratings Parameter Values Typ. Symbol Conditions Operating Temperature TOP - -20 105 Storage Temperature TST - -40 150 min. Unit max. 25 ℃ ℃ Output clamp Voltage VC DC Supply Voltage VDD - 18 27 V Supply Current IDD - 6 mA (1) V Continuous Current IO(CONT) 600 mA Hold Current IO(HOLD) 900 mA Peak Current IO(PEAK) Bop Low High Note: The magnetic pole is applied facing the branded side of the package Hysteresis Characteristics V V B Brp Bop NO B Brp Bop SO Rev1.3 Nov. 21, 2008 P.4 FEELING TECHNOLOGY FD1157H Performance Graphs Figure.4 Figure.5 Figure.6 Figure.7 Figure.8 Figure.9 Rev1.3 Nov. 21, 2008 P.5 FEELING TECHNOLOGY FD1157H Lock shutdown – Restart Timing Description: (TON) (TOFF) Channel2: VDD pin current waveform Channel3: Output (SO pin) voltage waveform Channel1: Output (NO pin) voltage waveform Note: The North pole (B > Bop) is applied facing the branded side of the package. Rev1.3 Nov. 21, 2008 P.6 FEELING TECHNOLOGY FD1157H Application Circuit Reference Vcc D1 1157H Gnd SO NO Vcc YMV-XX R1 C1 D2 Figure.10 Note: C1=1uF, R1=2~5 ohm(option),D2(option) breakdown voltage 16V Rev1.3 Nov. 21, 2008 P.7 FEELING TECHNOLOGY FD1157H Package Dimension (Unit: mm) SIP-4L(Halogen Free) 5.23±0.12 2- 3 25 de g. de g. 1.55±0.25 0.73±0.03 3.66±0.12 4.2±0.1 1.1±0.1mm 1.95±0.1mm Sensor location 15.0±1.0 0.457±0.025 1.27±0.025 0.39±0.05 0.38±0.05 Rev1.3 Nov. 21, 2008 P.8 FEELING TECHNOLOGY FD1157H Packing Specification BAG & BOX DIMANSION 160 mm 100 mm 200 mm FTC Logo BAG LABEL 630 mm BOX LABEL BAG 190 mm INSIDE BOX 400mm 240mm 650mm CARTON LABEL FTC Logo CARTON Packing Quantity Specifications 1000 EA / 1 BAG 25 BAGS / 1 INSIDE BOX 4 INSIDE BOXES / 1 CARTON Rev1.3 Nov. 21, 2008 P.9 FEELING TECHNOLOGY FD1157H Order Information Part Number Operating Temperature Package Description Marking FD1157H-G1 -20 OC to +85 OC SIP-4L ±20G (B) - Rev1.3 Nov. 21, 2008 P.10