lb11693 Sanyo Semiconductor Corporation, lb11693 Datasheet
lb11693
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lb11693 Summary of contents
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... Ordering number : ENN8095 LB11693 Overview The LB11693 reduces motor noise by imparting a slope to the output current when switching the phase to which power is applied. This motor driver includes an automatic recovery constraint protection circuit and is optimal for driving 24 V fan motors. Functions and Features • ...
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... PWM Oscillator Circuit High-level output voltage Low-level output voltage Amplitude External capacitor charge current Oscillator frequency TOC Pin Input voltage 1 Input voltage 2 Input voltage 1L Input voltage 2L Input voltage 1H Input voltage 2H LB11693 Symbol Conditions V CC IREG IRD IFG = Symbol Conditions I ...
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... High-level input current Low-level input current Package Dimensions unit : mm 3147C 20.0 26.75 (1.81) 1.78 0.6 1.0 SANYO : DIP28H (500mil) LB11693 Symbol Conditions VOL (RD) IRD = (RD) VRD = 28 V VOL (FG) IFG = (FG) VFG = 28 V IFGFIL1 IFGFIL2 G (FG) Design target value VIS (FG) Design target value, input equivalent ...
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... IN2+ IN2– IN1+ IN1– GND1 LB11693 VCC VM VREG LVS FGFIL PWM TOC EI– EI+ S CSD FG RD PWMIN No.8095-4/12 ...
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... To detect VREG, connect this pin to VREG. 8 LVS To detect V , set the detection voltage by inserting a CC zener diode in series. FG filter connection 9 FGFIL This pin is normally left open. If noise on the FG signal is a problem, insert a capacitor between this pin and ground. LB11693 Function VCC CC. VREG VREG Equivalent circuit VD 4 300 VM 6 ...
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... When low, the outputs are turned on, and when high or 14 PWM IN open, the outputs are turned off. When these pins are used for control, connect the EI– pin to ground and the EI+ pin to the TOC pin. LB11693 Equivalent circuit VREG VREG VREG VREG ...
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... Control amplifier inverting input 18 TOC PWM waveform comparison (Control amplifier output) Sets the PWM oscillator frequency. Insert a capacitor between this pin and ground. 19 PWM A value 2200 pF sets the frequency to be about 20 kHz. LB11693 Equivalent circuit VREG VREG 300 16 VREG PWM comparator VREG 30 k ...
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... IN3+ as the Hall input signal. If noise on the Hall signals IN3– problem, insert capacitors between the IN+ and IN- inputs. Forward/reverse control 27 F/R A low level specifies forward and a high level or open specifies reverse. LB11693 Equivalent circuit VREG 300 VREG 300 22 24 ...
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... Equivalent Circuit Block Diagram LB11693 No.8095-9/12 ...
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... Hall sensor input waveform. Motor speed control is implemented by PWM switching of the low side output transistor. The drive output is adjusted by changing the duty. The LB11693 includes the diode between OUT and VM used for the regenerative current when the PWM signal is off. ...
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... When the motor is physically constrained (held stopped), the CSD pin external capacitor is charged (to about 3 constant current of about 2.4 µA and is then discharged (to about 1 constant current of about 0.17 µA. This process is repeated, generating a sawtooth waveform. The constraint protection circuit turns motor drive (the low side LB11693 To the power supply level to be detected To the LVS pin No ...
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... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of November, 2004. Specifications and information herein are subject to change without notice. LB11693 PS No.8095-12/12 ...