ZHCSNE5D October 2020 – February 2024 LMG3522R030-Q1
PRODUCTION DATA
請參考 PDF 數(shù)據(jù)表獲取器件具體的封裝圖。
The integrated driver senses the GaN die temperature and outputs the information through a modulated PWM signal on the TEMP pin. The typical PWM frequency is 9 kHz with the same refresh rate. The minimum PWM pulse width is around 30 ns, which can be observed at temperature below 25°C. The target temperature range is from 25°C to 150°C, and the corresponding PWM duty cycle is typically from 3% to 82%. Equation 2 can be used to calculate the typical junction temperature TJ,typ in °C from the duty cycle DTEMP:
The tolerances of typical measurement are listed in Table 7-2.
| Typical TJ Measurement Based on TEMP Signal (°C) | 25 | 85 | 125 |
|---|---|---|---|
| Tolerance (°C) | ±5 | ±6 | ±10 |
At temperatures above 150°C, the duty cycle continues to increase linearly until overtemperature fault happens. When overtemperature happens, the TEMP pin is pulled high to indicate this fault until the temperature is reduced to the normal range. There is a hysteresis to clear overtemperature fault.