lb11867fv Sanyo Semiconductor Corporation, lb11867fv Datasheet
lb11867fv
Available stocks
Related parts for lb11867fv
lb11867fv Summary of contents
Page 1
... LB11867FV Overview LB11867FV 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 ...
Page 2
... OUTP output L-level voltage Hall input sensitivity VHN FG output L-level voltage pin leakage current VTH/RMI pin bias current IVTH/IRMI LB11867FV Conditions with specified substrate *1 *2 Conditions Conditions During drive During lock protection I5VREG = 5mA V CPWM = 0.5V V CPWM = 3. 220PF ...
Page 3
... Package Dimensions unit : mm (typ) 3178B 5 0.65 0.15 (0.33) 0.22 SANYO : SSOP16(225mil) Pin Assignment LB11867FV 1000 800 600 400 200 0 -30 OUT2P 1 16 OUT1P OUT2N 2 15 OUT1N SGND SENSE 4 13 5VREG S-S VTH CPWM Top View Pd max -- Ta ...
Page 4
... (2) Speed control CT, S-S VTH, RMI CPWM For VTH, RMI, and S-S pins, refer to the timing chart. LB11867FV Discharge circuit Controller Osillaton S-S RMI VTH CPWM SENSE OUT1P OUT1N OUT2P OUT2N L L OFF OFF H L OFF L OFF ...
Page 5
... 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. LB11867FV *3 1µF to /25V 1 ...
Page 6
... 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. LB11867FV No.A0195-6/9 ...
Page 7
... The rotation speed can be monitored with the FG output. (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.) LB11867FV f=30kHz (CP=220pF) Low speed High speed PWM control speed variable 3 ...
Page 8
... 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 LB11867FV S-S voltage Soft start section S-S voltage Soft RMI set speed start section 3.0V CPWM 1 ...
Page 9
... 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 October, 2007. Specifications and information herein are subject to change without notice. LB11867FV PS No.A0730-9/9 ...