Product details

FET Internal Ron (Typ) (mOhm) 9.8 Vin (Min) (V) 2.7 Vin (Max) (V) 23 Vabsmax_cont (V) 28 Current limit (Min) (A) 1 Current limit (Max) (A) 8 Overcurrent response Circuit breaker, Current limiting Fault response Auto-retry, Latch-off UL recognition UL2367 (pending)
FET Internal Ron (Typ) (mOhm) 9.8 Vin (Min) (V) 2.7 Vin (Max) (V) 23 Vabsmax_cont (V) 28 Current limit (Min) (A) 1 Current limit (Max) (A) 8 Overcurrent response Circuit breaker, Current limiting Fault response Auto-retry, Latch-off UL recognition UL2367 (pending)
VQFN-HR (RPW) 10 4 mm² 2 x 2
  • Wide operating input voltage range: 2.7 V to 23 V
    • 28-V absolute maximum
  • Integrated FET with low on-resistance: RON = 9.8 mΩ (typ.)
  • Fast overvoltage protection
    • Overvoltage clamp (OVC) with pin-selectable threshold (3.89 V, 5.76 V, 13.88 V) and 5-µs (typical) response time or
    • Adjustable overvoltage lockout (OVLO) with 1.2-µs (typical) response time
  • Overcurrent protection with load current monitor output (ILM)
    • Active current limit or circuit-breaker options
    • Adjustable threshold (ILIM) 0.87 A–7.7 A
      • ±10% accuracy for ILIM > 1.74 A
    • Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × ILIM
    • Output load current monitor accuracy: ±8% (max)
  • Fast-trip response for short-circuit protection
    • 550-ns (typical) response time
    • Adjustable (2 × ILIM) and fixed thresholds
  • Active high enable input with adjustable undervoltage lockout threshold (UVLO)
  • Adjustable output slew rate control (dVdt)
  • Overtemperature protection
  • Digital outputs
    • Fault indication (FLT) or
    • Power Good indication (PG) with adjustable threshold (PGTH)
  • UL 2367 recognition (pending)
  • IEC 62368 CB certification (pending)
  • Small footprint: QFN 2 mm × 2 mm, 0.45-mm pitch
  • Wide operating input voltage range: 2.7 V to 23 V
    • 28-V absolute maximum
  • Integrated FET with low on-resistance: RON = 9.8 mΩ (typ.)
  • Fast overvoltage protection
    • Overvoltage clamp (OVC) with pin-selectable threshold (3.89 V, 5.76 V, 13.88 V) and 5-µs (typical) response time or
    • Adjustable overvoltage lockout (OVLO) with 1.2-µs (typical) response time
  • Overcurrent protection with load current monitor output (ILM)
    • Active current limit or circuit-breaker options
    • Adjustable threshold (ILIM) 0.87 A–7.7 A
      • ±10% accuracy for ILIM > 1.74 A
    • Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × ILIM
    • Output load current monitor accuracy: ±8% (max)
  • Fast-trip response for short-circuit protection
    • 550-ns (typical) response time
    • Adjustable (2 × ILIM) and fixed thresholds
  • Active high enable input with adjustable undervoltage lockout threshold (UVLO)
  • Adjustable output slew rate control (dVdt)
  • Overtemperature protection
  • Digital outputs
    • Fault indication (FLT) or
    • Power Good indication (PG) with adjustable threshold (PGTH)
  • UL 2367 recognition (pending)
  • IEC 62368 CB certification (pending)
  • Small footprint: QFN 2 mm × 2 mm, 0.45-mm pitch

The TPS2597xx family of eFuses is a highly integrated circuit protection and power management solution in a small package. The devices provide multiple protection modes using very few external components and are a robust defense against overloads, short-circuits, voltage surges and excessive inrush current.

Output slew rate and inrush current can be adjusted using a single external capacitor. Loads are protected from input overvoltage conditions either by clamping the output to a safe fixed maximum voltage (pin selectable), or by cutting off the output if the input exceeds an adjustable overvoltage threshold. The devices respond to output overload by actively limiting the current or breaking the circuit. The output current limit threshold as well as the transient overcurrent blanking timer are user adjustable. The current limit control pin also functions as an analog load current monitor.

The devices are available in a 2-mm × 2-mm, 10-pin HotRod™ QFN package for improved thermal performance and reduced system footprint.

The devices are characterized for operation over a junction temperature range of –40°C to +125°C.

The TPS2597xx family of eFuses is a highly integrated circuit protection and power management solution in a small package. The devices provide multiple protection modes using very few external components and are a robust defense against overloads, short-circuits, voltage surges and excessive inrush current.

Output slew rate and inrush current can be adjusted using a single external capacitor. Loads are protected from input overvoltage conditions either by clamping the output to a safe fixed maximum voltage (pin selectable), or by cutting off the output if the input exceeds an adjustable overvoltage threshold. The devices respond to output overload by actively limiting the current or breaking the circuit. The output current limit threshold as well as the transient overcurrent blanking timer are user adjustable. The current limit control pin also functions as an analog load current monitor.

The devices are available in a 2-mm × 2-mm, 10-pin HotRod™ QFN package for improved thermal performance and reduced system footprint.

The devices are characterized for operation over a junction temperature range of –40°C to +125°C.

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Technical documentation

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Type Title Date
* Data sheet TPS2597xx 2.7 V–23 V, 7-A, 9.8-mΩ eFuse With Accurate Current Monitor and Transient Overcurrent Blanking datasheet (Rev. B) PDF | HTML 13 Jan 2022
Certificate TPS2597x CB Test Certificate IEC 62368-1 11 Jan 2023
Certificate TPS2597x UL2367 Certificate of Compliance E169910 11 Jan 2023
Certificate TPS2597x UL2367 Certificate of Compliance E339631 11 Jan 2023
Application note How eFuse Ensures Integrated FET Operation in Safe Operating Area PDF | HTML 07 Sep 2022
User guide TPS2597EVM: Evaluation Module for TPS2597 eFuse (Rev. A) PDF | HTML 07 Dec 2021
Certificate TPS2597EVM EU RoHS Declaration of Conformity (DoC) 20 Sep 2021

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS2597EVM — TPS2597 evaluation module for 2.7-V to 23-V, 7-A, 10-mΩ eFuse

The TPS2597EVM eFuse evaluation board allows reference circuit evaluation of Texas Instruments (TI) TPS2597xx eFuse. The TPS2597xx device is a 2.7-V to 23-V, 7-A eFuse with integrated 10-mΩ FET with over current, inrush current protection, adjustable over-current transient blanking timer, (...)

User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS2597 PSpice Transient Model (Rev. B)

SLVMDQ8B.ZIP (254 KB) - PSpice Model
Calculation tool

TPS2597 Design Calculator (Rev. B)

SLVRBJ2B.ZIP (2837 KB)
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
VQFN-HR (RPW) 10 View options

Ordering & quality

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  • Ongoing reliability monitoring

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