LMC555
- Fast astable frequency of 3MHz
- Available in industry’s smallest 8-bump DSBGA package (1.43mm × 1.41mm)
- Less than 1mW typical power dissipation at 5V supply
- 1.5V specified supply operating voltage
- output fully compatible with TTL and CMOS logic at 5V supply
- Tested to −10mA, 50mA output current levels
- Reduced supply current spikes during output transitions
- Extremely low reset, trigger, and threshold currents
- Excellent temperature stability
- Pin-for-pin compatible with 555 series of timers
The LMC555 device is a CMOS version of the industry standard 555 series general-purpose timers. In addition to the standard SOIC, VSSSOP, and PDIP packages, the LMC555 is also available in a chip-sized, 8-bump DSBGA package using TI’s DSBGA package technology. The LMC555 offers the same capability of generating accurate time delays and frequencies as the LM555, but with much lower power dissipation and supply current spikes. When operated as a one-shot, the time delay is precisely controlled by a single external resistor and capacitor. In astable mode, the oscillation frequency and duty cycle are accurately set by two external resistors and one capacitor. TI’s LMCMOS process extends both the frequency range and the low supply capability.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LMC555 CMOS Timer datasheet (Rev. N) | PDF | HTML | 2024年 3月 5日 |
| Application note | Considering TI Smart DACs As an Alternative to 555 Timers | PDF | HTML | 2021年 9月 2日 |
設計與開發
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LMG5200POLEVM-10 — LMG5200 GaN 48V 至 1V 負載點評估模組
LMG5200POLEVM-10 EVM 專為評估 48V 至 1V 應用中的 LMG5200 GaN 功率級和 TPS53632G 半橋負載點控制器而設計。 此 EVM 將 48V-1V 轉換器實作為單級硬開關半橋，並搭配倍流整流器。 EVM 可支援 36 至 75 伏特的輸入電壓和高達 50A的輸出電流。此拓樸結構可有效支援高降壓比，同時提供顯著的輸出電流和可控性。
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YPB) | 8 | Ultra Librarian |
| PDIP (P) | 8 | Ultra Librarian |
| SOIC (D) | 8 | Ultra Librarian |
| VSSOP (DGK) | 8 | Ultra Librarian |
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