lb11693h Sanyo Semiconductor Corporation, lb11693h Datasheet
lb11693h
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lb11693h Summary of contents
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... Ordering number : ENA0287 LB11693H Overview The LB11693H 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 24V fan motors. Functions • Soft phase switching + direct PWM drive • ...
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... I B (CTL) Common-mode input voltage VICM range High-level output voltage V OH (CTL) Low-level output voltage V OL (CTL) Open-loop gain G(CTL) LB11693H Conditions When STOP 0.7A (SINK (SOURCE 1.5A (SINK (SOURCE 0. 1. -5mA 9.5 to 28V -20mA ...
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... Low-level input voltage V IL (FR) Input open voltage V IO (FR) Hysteresis V IS (FR) High-level input current I IH (FR) Low-level input current I IL (FR) LB11693H Conditions VPWM = 2. 2200pF Output duty: 100% Output duty: 0% Design target value. 100% when VREG = 4.7V Design target value. 0% when VREG = 4.7V Design target value. ...
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... Source → Sink IN1 OUT2 → OUT1 1 H OUT3 → OUT1 2 H OUT3 → OUT2 3 H OUT1 → OUT2 4 L OUT1 → OUT3 5 L OUT2 → OUT3 6 L LB11693H 0.25 F/R = ’L’ F/R = ’H’ IN2 IN3 IN1 IN2 ...
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... If the V CC level detected, insert a zener diode in series to set the detection level. 12 FGFIL FG filter. Normally, this IC will be used with this pin open. Connect a capacitor between this pin and ground if noise on the FG signal becomes a problem. LB11693H Equivalent circuit Continued on next page. No.A0287-5/24 ...
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... When the motor is constrained: high, when the motor is turning: low. 18 PWMIN PWM pulse input. When low the output will be on and when high the outputs will be off. If this pin is used to control this IC, connect ground and connect TOC. LB11693H Equivalent circuit Continued on next page. No.A0287-6/24 ...
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... CTL amplifier noninverting input CTL amplifier inverting input 23 TOC PWM waveform comparator (CTL amplifier output) 25 PWM PWM oscillator frequency setting. Connect a capacitor between this pin and ground. A frequency of about 20kHz can be set by using a 2200pF capacitor. LB11693H Equivalent circuit Continued on next page. No.A0287-7/24 ...
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... IN + and IN - inputs. 31 Forward/reverse control 33 F/R Low: forward, high or open: reverse. 1 connection. 5,6 The NC pins may be used for wiring connections. 13,1 9 24,3 5 FRAME Frame connection The FRAME pin is connected internally to the IC surface metal parts. Both must be used in the electrically open state. LB11693H Equivalent circuit No.A0287-8/24 ...
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... Block Diagram LB11693H No.A0287-9/24 ...
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... Power Supply Stabilization Since the LB11693H uses a control method based on PWM switching, the power supply lines are susceptible to disruption. Electrolytic capacitors with an adequate capacitance for stabilization must be connected between V CC and ground. If diodes are inserted in the power supply lines to prevent destruction of the equipment if the power supply is connected in reverse, the power supply lines will be particularly susceptible to disruption ...
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... Forward/Reverse Switching The LB11693H was designed assuming that forward/reverse switching would not be performed while the motor is operating. We recommend that the F/R pin be held fixed at either the low (forward) or high (reverse) level when the motor is turning. Although it will be pulled up to the high level by an internal pull-up resistor (about 40kΩ) when left open, this must be strengthened by an external resistor if fluctuations are large ...
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... Hall input IN1 frequency falls below about 10Hz, caution is required when using the motor constraint protection circuit with motors that will operate at low speeds. Connect the CSD pin to ground if the motor constraint protection circuit is not used. LB11693H No.A0287-12/24 ...
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... Test Circuits sat1 , V O sat2 LB11693H Set the switch SW on when measuring Set the switch SW off when measuring Input the logic states shown in the table so that the output transistor for the corresponding phase is on. After setting the switch SW to position 1 for source transistor measurement or to position 2 for sink transistor measurement, proceed to the measurement itself ...
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... I O leak VD1, VD2(EX, OUT1) LB11693H After setting the logic state so that the high and low side output transistors for the corresponding phase are in the off state, proceed to the measurement itself. Set the switch SW to position 1 for source transistor leakage measurement, and to position for sink transistor leakage measurement ...
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... VREG, ∆VREG1, ∆VREG2 I B (HA) LB11693H The figure shows the circuit used for measuring IN3. Use similar circuits for measurement of the input pins for the other phases. No.A0287-15/24 ...
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... V OH (CSD (CSD) I CSD 1, I CSD 2 LB11693H Change V IN from 0.8V to 2.0V when measuring I CSD 1. Change V IN from 3.3V to 2.0V when measuring I CSD 2. No.A0287-16/24 ...
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... ∆ After manipulating the logic and setting values such that less than 2V when VM, proceed to the measurement itself. LB11693H No.A0287-17/24 ...
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... V OH (PWM (PWM), V(PWM), I CHG (PWM) Record the IPWM current when VPWM is changed from 1.0 to 2.1V as ICHG. LB11693H Set the switch SW to the 2 position when measuring V OH (CTL). Set the switch SW to the 1 position when measuring V OL (CTL). Refer to the figure below. ...
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... V OL (RD (RD) After power is first applied, set the ground level. Set the switch SW to position 1 and measure V OL (RD). Then set 3.3V. Set the switch SW to position 2 and measure I L (RD). LB11693H No.A0287-19/24 ...
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... Then set and 3V. Set the switch SW to position 2 and measure I L (FG). I FGFIL 1, I FGFIL 2 When measuring IFGFIL1, set 3V 2V, and VFGIL from 0.5 to 2.0V. When measuring IFGFIL2, set 2V 3V, and VFGIL from 3.5 to 2.0V. LB11693H No.A0287-20/24 ...
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... V IH (S/S (S/S (S/S (S/S (S/S (S/S) LB11693H After manipulating the logic and setting values such that less than 2V when V S/S = 0V, proceed to the measurement itself. IC operation long as the output voltage V IH (S/ (S/S) changes when V S/S is between 1.0 and 2.0V. No.A0287-21/24 ...
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... V IH (PI (PI (PI (PI (PI (PI) LB11693H After manipulating the logic and setting values such that less than 2V when 0V, proceed to the measurement itself (PI) IC operation long as the output voltage V IL (PI) changes when between 1.0 and 2.0V. ...
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... V IH (FR (FR (FR (FR (FR (FR) LB11693H After manipulating the logic and setting values such that less than 2V when 0V, proceed to the measurement itself (FR) IC operation long as the output voltage V IL (FR) changes when between 1.0 and 2.0V. ...
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... SANYO Semiconductor 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 February, 2006. Specifications and information herein are subject to change without notice. LB11693H PS No.A0287-24/24 ...