LV8121V SANYO [Sanyo Semicon Device], LV8121V Datasheet
LV8121V
Related parts for LV8121V
LV8121V Summary of contents
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... LV8121V Overview The LV8121V is a three-phase brushless motor driver that uses a PWM drive technique. The motor speed is controlled by changing the PWM duty that based on an analog voltage input. This motor driver includes an automatic return constraint protection circuit and is optimal for driving fan motors. ...
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... Low level output voltage V OL (RT) Charge Pump Output (VG pin) Output voltage VG OUT CP1 pin High level output voltage V OH (CP1) Low level output voltage V OL (CP1) Charge pump frequency f(CP1) LV8121V Conditions Conditions min At stop 1. 2. -1. -2. 12V -1. -2. ...
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... Input open voltage V IO (SS) Hysteresis width V IS (SS) High level input current I IH (SS) Low level input current I IL (SS These items are design target value and are not tested. LV8121V Conditions min V PWM = 2. 1800pF Output duty: 100% Output duty 0.047μ F Design target value * ...
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... LV8121V SIDE VIEW BOTTOM VIEW 23 (4.7) 22 0.2 SANYO : SSOP44K(275mil) Pd max -- Ta 2.0 Mounted on the specified board: 114.3×76.1×1.6mm 1.7 1.5 1.0 0 Ambient temperature ° LV8121V glass epoxy 0.68 90 120 Top view No ...
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... Block Diagram LV8121V No.A2135-5/14 ...
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... IN2 - 7 as the low level input for the opposite state. IN2 + 8 If noise on the Hall signals is a problem, connect a capacitor IN1 - between the corresponding IN + and IN - inputs. 9 IN1 + 10 LV8121V Function VREG VREG Equivalent circuit 200Ω 950Ω VREG 500Ω ...
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... Connect the RFS pin to the RF pin Charge pump output pin. Connect a capacitor between this pin and CP2 Pin to connect the capacitor for charge pump. Connect a capacitor between this pin and CP1. LV8121V Function VREG Equivalent circuit VREG 100kΩ 14 10kΩ ...
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... Connect a capacitor between this pin and GND1 Hall bias switch pin. Goes off when the S/S input is the stop mode One hall-effect sensor FG output pin. (This is an open-drain output.) LV8121V Function VREG 40 Equivalent circuit 300Ω 50Ω ...
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... Three-phase logic truth table (A high level input is the state where IN + > IN − IN1 IN2 IN3 LV8121V Function VREG F IN1 IN2 IN3 Equivalent circuit 500Ω Output OUT1 ...
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... Description of LV8121V 1. Motor Drive Output Circuit The LV8121V provides a charge pump circuit and implements both upper side and lower side N-channel power FET drive circuit. This IC employs the direct PWM drive technique. The motor speed is controlled by changing the output duty according to an analog voltage input (CTL). The upper side N-channel power FET is switched so that the output duty tracks the CTL voltage ...
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... IC cannot limit this current, applications must be designed so that this current does not exceed the maximum rating (3.5A). When the motor speed is higher, the direction switching is dangerous minus voltage is applied to the F/R pin, this pin current must be limited within 2mA by inserting the resistor of about 200Ω. LV8121V To VG 160kΩ 5.1kΩ ...
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... FET may be switched by the current limiter. But, the synchronous rectification does not operate when the oscillation of the CSD pin is stopped. Continued on next page. • In case the LIM pin is not used (LIM = GND), even if the CTL voltage falls below 0.7V, the HB output is not turned off when the oscillation of the CSD pin is stopped. LV8121V No.A2135-12/14 ...
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... Exposed Die-pad to GND1 externally. The IC’s generation of heat can be efficiently diffused to a printed circuit board by soldering the Exposed Die-pad to the copper of the printed circuit board. 19. NC Pins The NC pins are electrically open. These pins may be used for wiring routes. LV8121V No.A2135-13/14 ...
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... SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellectual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of October, 2012. Specifications and information herein are subject to change without notice. LV8121V 5.1kΩ 160kΩ 2SC 5964 5 ...