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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TS4999 датащи(PDF) 30 Page - STMicroelectronics |
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TS4999 датащи(HTML) 30 Page - STMicroelectronics |
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30 / 36 page  Application information TS4999 30/36 Figure 61. LC output filter with RC network 4.10 Short-circuit protection The TS4999 includes an output short-circuit protection. This protection prevents the device from being damaged when faults occur on the amplifier outputs. When a channel is in operating mode and a short-circuit occurs between two outputs of the channel or between an output and ground, the short-circuit protection detects this situation and puts the appropriate channel into standby mode. To put the channel back into operating mode, it is necessary to put the channel’s standby pin to logical LO and then back to logical HI and wake-up the channel. 4.11 Thermal shutdown The TS4999 device has an internal thermal shutdown protection mechanism to protect the device from overheating in the event of extreme temperatures. The thermal shutdown mechanism is activated when the device reaches 150° C. When the temperature decreases to safe levels (around 135° C), the circuit switches back to normal operation. Table 12. Example of component selection Component RL = 4 Ω RL = 8 Ω L1 15 μH / 1.4A 30 μH / 0.7A L2 15 μH / 1.4A 30 μH / 0.7A C1 2 μF / 10V 1 μF / 10V C2 2 μF / 10V 1 μF / 10V C3 1 μF / 10V 1 μF / 10V R22 Ω / 0.25W 47 Ω / 0.25W from TS2007 L LC Output Filter L1 C1 L2 C3 R C2 R OUT+ OUT- RC network |
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