lb11867rv Sanyo Semiconductor Corporation, lb11867rv Datasheet
lb11867rv
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lb11867rv Summary of contents
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... LB11867RV Overview LB11867RV is a single-phase bipolar driving motor pre-driver with the variable speed function compatible with external PWM signal. With a few external parts, a highly-efficient and highly-silent variable drive fan motor with low power consumption can be achieved. This product is best suited for driving of the server requiring large air flow and large current and the fan motor of consumer appliances ...
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... OUTP output L-level voltage Hall input sensitivity VHN RD output L-level voltage pin leakage current VTH/RMI pin bias current IVTH/IRMI LB11867RV Conditions with specified substrate *1 *2 Conditions Conditions During drive During lock protection I5VREG = 5mA V CPWM = 0.5V V CPWM = 3. 220PF ...
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... Package Dimensions unit : mm (typ) 3178B 5 0.65 0.15 (0.33) 0.22 SANYO : SSOP16(225mil) Pin Assignment LB11867RV 1000 800 600 400 200 0 -30 OUT2P 1 16 OUT1P OUT2N 2 15 OUT1N SGND SENSE 4 13 5VREG RMI 5 12 S-S VTH CPWM Top View ...
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... (2) Speed control CT, S-S VTH, RMI CPWM For VTH, RMI, and S-S pins, refer to the timing chart. LB11867RV Discharge circuit Controller Osillaton S-S RMI VTH CPWM SENSE OUT1P OUT1N OUT2P OUT2N L L OFF OFF H L OFF L OFF ...
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... Pin to connect the capacitor for generation of the PWM basic frequency The use 220pF causes oscillation 30kHz, which is the basic frequency of PWM. As this is used also for the current limiting canceling signal, be sure to connect the capacitor even when the speed control is not made. LB11867RV * ...
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... Pin to connect the soft-start setting capacitor. Connect the capacitor between 5VREG and S-S pin. This pin enables setting of the soft start time according to the capacity of the capacitor. See the timing char. Connect the pin to GND when it is not to be used. LB11867RV No.A1534-6/9 ...
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... ON-DUTY increases, causing increase in the coil current, raising the motor rotation speed. (3) Full speed mode The full speed mode becomes effective when the VTH voltage is 1.1V or less. (Set VTH = GND when the speed control is not to be made.) LB11867RV f=30kHz (CP=220pF) Low speed High speed PWM control speed variable 3 ...
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... VTH voltage RMI voltage 0V Lock protection 100% ONDUTY 0% Adjust the S-S pin voltage gradient by means of the capacitance of the capacitor between the S-S pin and 5VREG.. Recommended capacitor: 0.1μ to 1μF LB11867RV S-S voltage Soft start section S-S voltage RMI set speed Soft start section 3.0V CPWM 1 ...
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... SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of July, 2009 Specifications and information herein are subject to change without notice. LB11867RV PS No.A1534-9/9 ...