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ALD4301ADB Datasheet(PDF) 6 Page - Advanced Linear Devices |
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ALD4301ADB Datasheet(HTML) 6 Page - Advanced Linear Devices |
6 / 9 page ALD4301A/ALD4301 Advanced Linear Devices 6 of 9 PUSH-PULL COMPLEMENTARY POWER MOSFET DRIVER + + +12V +12V +12V P- Channel VP 02 Power MOSFET 2A Source 2A Sink N - Channel VN 01 Power MOSFET +12V 10K 40K 10K V1 V2 VIN 1/2 ALD4301 R R This circuit eliminates crossover current in the complementary power transistors. The outputs can be used to source and sink different loads or tied together to provide push-pull drive of the same load. R ≥ 50 KΩ TIME DELAY GENERATOR + RF4 1/4 ALD4301 1/4 ALD4301 RF3 RF2 V+ RF1 + 1/4 ALD4301 + 1/4 ALD4301 RT CT + VIN V+ VREF RELAY 1 RELAY 3 RELAY 2 RELAY 1 turns off followed by RELAY 2 and then RELAY 3 with fixed sequence and time delays selectrd by ratios RF1, RF2 , RF3 and RF4. Design & Operating Notes: 1. In order to minimize stray oscillation, all unused inputs must be tied to ground. 2. The input bias and offset currents are essentially input protection diode reverse bias leakage currents, and are typically less than 1pA at room temperature. These currents are a function of ambient temperature, and would have to be considered in applications where very high source impedance or high accuracy are involved. 3. The high output sinking current of 60mA for each output offers flexibility in many applications, as a separate buffer or driver would not be necessary to drive the intended load. However, as the circuit normally operates close to ambient temperature due to its very low power consumption, thermal effects caused by large output current transients must be considered in certain applications. TYPICAL APPLICATIONS (cont'd) |
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