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LB11824 Fiches technique(PDF) 7 Page - Sanyo Semicon Device |
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LB11824 Fiches technique(HTML) 7 Page - Sanyo Semicon Device |
7 / 17 page No. 7107-7/17 LB11824M Pin No. Symbol Pin Description Equivalent circuit VCC1 15 Regulated-voltage output pin (5V output) Connect a capacitor (about 0.1µF) between this pin and ground for stabilization. 15 VREG Power pin (PWM oscillation, PWM comparator, VCTL amp). Normally connect to VREG. 16 VCC2 VCC1 43k Ω 17 18k Ω Voltage detection pin for low-voltage protection. To detect the supply voltage of 5 V or more, connect the zenor diode in series to set the detection voltage. 17 LVS 19 18 Power pin (VCC3) for use during application with the supply voltage of 12 V or more. 12 V is generated at the 12 REG pin. To use the 12REG pin, connect this pin to VCC1. When not used, keep both VCC3 and 12 REG open or connect them to GND. 18 19 VCC3 12REG VCC2 20k Ω 20 PWM waveform comparator pin. Normally used in the open condition. By inputting the voltage directly into this pin, the output duty can be controlled without using the VCTL amp. 20 TOC Continued on next page. Continued from preceding page. |
Numéro de pièce similaire - LB11824 |
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Description similaire - LB11824 |
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