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Frequent questions

  • [FAQ] Can the TPS2388 support "Perpetual POE" and "Fast POE?"

    Part Number: TPS2388 Dear Team, Can TPS2388 support below functions? Perpetual POE Fast POE Thanks. BR Kevin

  • [FAQ] UCC21220A: Isolated Gate Driver in narrow-body SOIC for basic and functional isolation applications enhances system efficiency, solution size, and reliability

    Part Number: UCC21220A Other Parts Discussed in Thread: UCC21220 , UCC21220EVM-009 Power supply designers are often challenged to make their systems solutions more efficient, more reliable, and smaller in size, while still maintaining competitive pricing…

  • [FAQ] TPS2373: Wiring of VC_IN and VC_OUT when no transfromer Aux Bias supply present

    Part Number: TPS2373 Other Parts Discussed in Thread: TPS23880 Hi, I'm designing a .bt PoE 5-port switch with an ideal rectifier bridge. I want to use the PG pin, with a 10k ohm pull-up to 3.3V (one of the power supply outputs). It will trigger…

  • [FAQ] LP2985: minimum slew rate for ON/OFF

    Part Number: LP2985 Other Parts Discussed in Thread: TLV757P , TPS764 , , TLV755P , TLV767 , TPS7A26 , LP5907 , TPS709 Hi, The datasheet states that the ON/OFF pin must be driven with a slew rate greater than 40mV/us. What is the potential concern…

  • [FAQ] TPS2373-4EVM-758: Active Bridge Rectifier Disconnect Circuit (Q18)

    Part Number: TPS23754 Other Parts Discussed in Thread: TPS2373-4EVM-758 Hi Sir, There is an Active bridge design on the TPS2373-4EVM-758 and we applied it with TPS23754 design. 1. May I know what's the purpose of the Q18 on the active bridge circuit…

  • [FAQ] LP8861-Q1: Different ISET current setting equation

    Part Number: LP8861-Q1 Other Parts Discussed in Thread: TPS61194-Q1 , TPS61193-Q1 For the devices LP8861-Q1, TPS61193-Q1, TPS61194-Q1, the maximum current for the LED current sinks is controlled with external Riset resistor at ISET pin. But there are…

  • [FAQ] BQ24040 and BQ2404X family Trouble Shooting Tips, No Output, Charge Current Low, Early Termination and Others.

    Other Parts Discussed in Thread: BQ24040 , BQ24090 , BQ21040 , BQ24050 What are some trouble shooting recommendation if we are seeing problems with the BQ24040 or similar devices.

  • [FAQ] UCC27211A: What's the difference of UCC27211A and UCC27211

    Part Number: UCC27211A Other Parts Discussed in Thread: UCC27211 , UCC27210 The UCC27211 and UCC27211A 4A, 120V half-bridge drivers are high performance drivers which have virtually the same specifications in the parameter table. There are some differences…

  • [FAQ] BQ24040 and BQ2404X family TS pin configuration of NTC and TTDM mode

    Other Parts Discussed in Thread: BQ24090 , BQ21040 , BQ24050 The TS pin has multiple ways that it can be configured. What is the best way to connect it and how?

  • [FAQ] UCC27511A: What is the difference between the Low Side Drivers UCC27511A and UCC27511? Improved Negative Input Voltage Handling capability

    Part Number: UCC27511A Other Parts Discussed in Thread: UCC27511 , Switch-Mode Power Supplies and Merchant DC-DC converter applications often require high current drive and hard switching to drive large loads. This hard switching of the power switches…

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