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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LM3430 датащи(PDF) 2 Page - Texas Instruments |
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LM3430 датащи(HTML) 2 Page - Texas Instruments |
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2 / 35 page  1 2 3 4 8 7 5 9 10 VIN FB COMP VCC OUT GND UVLO CS RT SS 6 VDHC 11 12 NC DAP LM3430 SNVS472B – JANUARY 2007 – REVISED MAY 2013 www.ti.com Connection Diagram Figure 1. 12-Lead WSON Package PIN DESCRIPTIONS Pin(s) Name Description Application Information This pin accepts a control signal from LM3432 to adjust the output voltage 1 VDHC Proprietary control input from LM3432 in real time. 2 VIN Source input voltage Input to the start-up regulator. Operates from 6V to 40V. Inverting input to the internal voltage error amplifier. The non-inverting input 3 FB Feedback pin of the error amplifier connects to a 1.25V reference. Error amplifier output and PWM The control loop compensation components connect between this pin and 4 COMP comparator input the FB pin. Output of the internal, high voltage This pin should be bypassed to the GND pin with a ceramic capacitor. 5 VCC linear regulator. 6 OUT Output of gate driver Connect this pin to the gate of the external MOSFET. The gate driver has a 1A peak current capability. 7 GND System ground Set the start-up and shutdown levels by connecting this pin to the input 8 UVLO Input Under-Voltage Lock-out voltage through a resistor divider. A 20 µA current source provides hysteresis. Current Sense input Input for the switch current sensing used for current mode control and for 9 CS current limiting. An external resistor connected from this pin to GND sets the oscillator Oscillator frequency adjust pin and 10 RT/SYNC frequency. This pin can also accept an ac-coupled input for synchronization synchronization input from an external clock. An external capacitor placed from this pin to ground will be charged by a 11 SS Soft-start pin 10 µA current source, creating a ramp voltage to control the regulator start- up. 12 NC No-connect Leave this pin open-circuit. DAP EP Exposed Pad Thermal connection pad, connect to GND. 2 Submit Documentation Feedback Copyright © 2007–2013, Texas Instruments Incorporated Product Folder Links: LM3430 |
Аналогичный номер детали - LM3430 |
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Аналогичное описание - LM3430 |
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