データシートサーチシステム |
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LM3310 データシート(PDF) 2 Page - Texas Instruments |
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LM3310 データシート(HTML) 2 Page - Texas Instruments |
2 / 33 page NC VGHM VFLK VDPM VDD AVIN SW VIN VC 13 14 18 17 16 15 1 2 3 4 5 6 NC SS FREQ LM3310 LM3310 SNVS341E – AUGUST 2005 – REVISED MAY 2013 www.ti.com Connection Diagram Top View Figure 1. WQFN-24 Package See Package Number RTW0024A θJA=37°C/W Pin Descriptions Pin Name Function 1 NC Not internally connected. Leave pin open. 2 VGHM Output of GPM circuit. This output directly drives the supply for the gate driver circuits. 3 VFLK Determines when the TFT LCD is on or off. This is controlled by the timing controller in the LCD module. 4 VDPM VDPM pin is the enable signal for the GPM block. Pulling this pin high enables the GPM while pulling this pin low disables it. VDPM is used for timing sequence control. 5 VDD Reference input for gate pulse modulation (GPM) circuit. The voltage at VDD is used to set the lower VGHM voltage. If the GPM function is not used connect VDD to VIN. 6 AVIN Op-Amp analog power input. 7 OUT Output of the Op-Amp. 8 NEG Negative input terminal of the Op-Amp. 9 POS Positive input terminal of the Op-Amp. 10 AGND Analog ground for the step-up regulator, LDO, and Op-Amp. Connect directly to DAP and PGND beneath the device. 11 NC Not internally connected. Leave pin open. 12 NC Not internally connected. Leave pin open. 13 NC Not internally connected. Leave pin open. 14 SS Boost converter soft start pin. 15 VC Boost compensation network connection. Connected to the output of the voltage error amplifier. 16 FREQ Switching frequency select input. Connect this pin to VIN for 1.28MHz operation and AGND for 660kHz operation. 17 VIN Boost converter and GPM power input. 18 SW Boost power switch input. Switch connected between SW pin and PGND pin. 19 SHDN Shutdown pin. Active low, pulling this pin low disable the LM3310. 20 FB Boost output voltage feedback input. 21 PGND Power Ground. Source connection of the step-up regulator NMOS switch and ground for the GPM circuit. Connect AGND and PGND directly to the DAP beneath the device. 2 Submit Documentation Feedback Copyright © 2005–2013, Texas Instruments Incorporated Product Folder Links: LM3310 |
同様の部品番号 - LM3310 |
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同様の説明 - LM3310 |
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