LTC2928IUHF#TRPBF

LTC2928IUHF#TRPBF is a specific packaging/variant of Analog Devices’ LTC2928 dual hot-swap controller with PMBus interface. It’s used to protect and monitor two power rails during hot-swapping in systems such as servers, telecom, and industrial equipment. Key functions typically include dual high-side switches with programmable current limit, inrush/ramp control, and fault protection (overcurrent/short-circuit, undervoltage, overvoltage, thermal). The PMBus/I2C interface allows configuration and status reporting, enabling remote control of limits and monitoring of rail health.
Suffix notes:
- IUHF: package/temperature code (industrial range, and related package variant).
- #TRPBF: Tape-and-Reel Pb-free packaging (lead-free, for automated assembly).

Here are the key features of LTC2928IUHF#TRPBF (as per the datasheet):
- Hot-swap/current-protection controller for backplane/rail insertion
- Programmable current-limit with auto-retry
- Programmable turn-on ramp/soft-start
- Protection: overcurrent, overvoltage, undervoltage
- Thermal protection with safe-operate behavior
- Fault reporting and status outputs (fault flag, Power-Good/Status)
- Enable input to gates rail enable/disable
- Small 8-pin package suitable for surface-mount (IUHF variant)
- Tape-and-reel packaging variant available (TRPBF)
Note: For exact electrical specs (voltage/current ranges, delays, thresholds), please consult the official LTC2928 datasheet.

- Pin count: 16 pins
- Function: I2C-controlled high-side hot-swap controller with programmable current limit and fault protection for power rails (protects against overcurrent/shorts, provides fault reporting).

- Manufacturer: Analog Devices, Inc. (ADI) (the LTC parts are now under ADI after acquiring Linear Technology).
- What kind of company: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing integrated circuits.

Application areas: hot‑swap protection and power‑rail sequencing for multi‑rail systems. The LTC2928IUHF#TRPBF provides programmable current limit, soft‑start/inrush control, overcurrent/short‑circuit protection, and robust rail sequencing with PWR_OK signaling. Suitable for any application needing safe insertion/removal of modules and protection of DC rails:
- Data centers/servers, blade/server backplanes
- Networking gear, switches, routers, line cards
- Telecom infrastructure and network equipment
- Industrial automation and motor drives
- Automotive 12–48 V electrical architectures
- Medical devices with reliable power rails
- Renewable/battery DC distribution (solar, storage)

It uses a 16-pin TSSOP Pb-free package. TRPBF indicates Tape & Reel, Pb-Free.