TPS25982 15A, 3mΩ eFuse with Accurate Current Monitor and Configurable Retry Timers | TI.com

TPS25982 (PREVIEW) 15A, 3mΩ eFuse with Accurate Current Monitor and Configurable Retry Timers

 

Sample Availability

Prototype samples are available (PTPS259827ONRGET, PTPS259827LNRGET, PTPS259824ONRGET). Request Now

Description

The TPS25982 device family of eFuses is a highly integrated circuit protection and power management solution in a small package. The devices are operational over a wide input voltage range. A single part caters to low-voltage systems needing minimal IR voltage drop as well as higher voltage, high current systems needing low power dissipation. They are a robust defense against overloads, short- circuits, voltage surges, and excessive inrush current.

Overvoltage events are limited by internal cutoff circuits, with multiple device options to choose the overvoltage threshold.

Multiple device options exist to choose between the response to overcurrent conditions, circuit breaker or active current limiter. The overcurrent limit and fast trip (short-circuit) threshold can be set with a single external resistor. The devices intelligently manage the overcurrent response by distinguishing between transient events and actual faults, thereby allowing the system to function uninterrupted during line and load transients without compromising on the robustness of the protection against faults. The device can be configured to stay latched off or retry automatically after a fault shutdown. The number of auto-retries as well as the retry delay are configurable with capacitors. This enables remote systems to automatically recover from temporary faults while ensuring that power supplies are not stressed indefinitely due to a persistent fault.

The TPS25982 devices are available in a small 4 mm × 4 mm QFN package. The devices are characterized for operation over a junction temperature range of –40˚C to 125˚C.

Features

  • Wide Input Voltage Range: 2.7 V to 24 V
    • 30 V Absolute Maximum
  • Low On-Resistance: RON = 3-mΩ Typical
  • Adjustable Current Limit Threshold
    • Range: 3 A to 15 A
    • Accuracy: ± 5% (Typical for IOUT > 5 A)
  • Circuit Breaker and Current Limiter Options
  • Programmable Overcurrent Fault Response Timer
    • Handles Transient Currents Without Tripping
  • Accurate Current Monitor Output
    • Accuracy: ±1% (Typical, for IOUT > 2 A)
  • User Configurable Fault Response
    • Latch-off and Auto-Retry
    • Number of Retries
    • Delay Between Retries
  • Fast Short Circuit Protection < 400-ns Typical
  • Adjustable Output Slew Rate (dVdt) Control
  • Adjustable Undervoltage Lockout
  • Over Voltage Protection (3.7 V, 7.6 V, 16.7 V Options)
  • Over Temperature Protection
  • Power Good Output
  • Programmable Load Handshake Timer
  • Low Current Consumption
    • Active: 1.5-mA Typical
    • Shutdown: 5-µA Typical
  • Small Footprint: 4-mm × 4-mm QFN Package

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Parametrics

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Part number Order FET Vin (Min) (V) Vin (Max) (V) Vabsmax_cont (V) Current limit (Min) (A) Current limit (Max) (A) Features Overcurrent response Current limit type UL recognition Fault response Current limit function enabled Ron (Typ) (mOhm) Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
TPS25982 Order now Internal     2.7     24     30     2     15     Analog Current Monitor
No External RSENSE
Soft-Start    
Current Limiting or Circuit Breaker     Adjustable     Yes     Auto Retry
Latch Off    
Always     3     Catalog     -40 to 125     VQFN | 24     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
TPS24750 Order now Internal     2.5     18     30     0.01     12     Overvoltage Cutoff
Reverse Current Blocking Always
Thermal Shutdown    
Current Limiting     Adjustable     No     Latch Off     Startup Only     3     Catalog     -40 to 85     VQFN | 36     36VQFN: 25 mm2: 7 x 3.5 (VQFN | 36)    
TPS24751 Order now Internal     2.5     18     30     0.01     12     Overvoltage Cutoff
Reverse Current Blocking Always
Thermal Shutdown    
Current Limiting     Adjustable     No     Auto Retry     Startup Only     3     Catalog     -40 to 85     VQFN | 36     36VQFN: 25 mm2: 7 x 3.5 (VQFN | 36)    
TPS25910 Order now Internal     2.9     20     22     0.8     6.5     Thermal Shutdown     Current Limiting     Adjustable     Yes     Auto Retry     Always     30     Catalog     -40 to 125     QFN | 16     16QFN: 16 mm2: 4 x 4 (QFN | 16)    
TPS2595 Order now Internal     2.7
3    
18     20     0.5     4     Analog Current Monitor
Fault Output
Overvoltage Cutoff
Quick Output Discharge    
Current Limiting     Adjustable