Product details

Vin (Min) (V) 2.5 Vin (Max) (V) 6.5 Continuous current (Max) (A) 5 Current limit (A) 1.2 to 4.7 Product type Adjustable current limit, Power switch Operating temperature range (C) -40 to 125 Enable Active High Number of switches 1 Rating Catalog
Vin (Min) (V) 2.5 Vin (Max) (V) 6.5 Continuous current (Max) (A) 5 Current limit (A) 1.2 to 4.7 Product type Adjustable current limit, Power switch Operating temperature range (C) -40 to 125 Enable Active High Number of switches 1 Rating Catalog
VSON (DRC) 10 9 mm² 3 x 3
  • Operating range: 2.5 V to 6.5 V
  • Adjustable 1.2-A to 4.7-A I(LIMIT) (±4.4% at 4.7 A)
  • Short-circuit shutoff (typical): 3.5 µs
  • High-side MOSFET: 13 mΩ
  • Maximum standby supply current: 2 µA
  • Built-in soft-start
  • System-level ESD capable: 8 kV / 15 kV
  • UL 2367 recognition pending
  • Operating range: 2.5 V to 6.5 V
  • Adjustable 1.2-A to 4.7-A I(LIMIT) (±4.4% at 4.7 A)
  • Short-circuit shutoff (typical): 3.5 µs
  • High-side MOSFET: 13 mΩ
  • Maximum standby supply current: 2 µA
  • Built-in soft-start
  • System-level ESD capable: 8 kV / 15 kV
  • UL 2367 recognition pending

The TPS2559 power-distribution switch is intended for applications where a low resistance, precision current limit switch is required or heavy capacitive loads are encountered. The TPS2559 provides up to 5.5 A of continuous load current with a precise current limit set by a single resistor to ground. Output current is maintained at a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. During overload events the output current is limited to the level set by R(ILIM). If a persistent overload occurs, the device goes into thermal shutoff to prevent damage to the TPS2559.

The power-switch rise and fall times are controlled to minimize current surges during turn on or off. The FAULT logic output asserts low during overcurrent or overtemperature conditions.

 

 

 

The TPS2559 power-distribution switch is intended for applications where a low resistance, precision current limit switch is required or heavy capacitive loads are encountered. The TPS2559 provides up to 5.5 A of continuous load current with a precise current limit set by a single resistor to ground. Output current is maintained at a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. During overload events the output current is limited to the level set by R(ILIM). If a persistent overload occurs, the device goes into thermal shutoff to prevent damage to the TPS2559.

The power-switch rise and fall times are controlled to minimize current surges during turn on or off. The FAULT logic output asserts low during overcurrent or overtemperature conditions.

 

 

 

Download

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Data sheet TPS2559 Precision Adjustable Current-Limited Power-Distribution Switch datasheet (Rev. A) PDF | HTML 11 Nov 2020
Certificate US-37137-UL Certificate of Compliance IEC 62368-1 12 Mar 2021
EVM User's guide TPS2559EVM-624 Evaluation Module 25 Apr 2014

Design & development

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

Evaluation board

TPS2559EVM-624 — TPS2559EVM-624 Precision Adjustable Current-Limited Power Distribution Switch

The TPS2559EVM-624 is a fully assembled and test circuit for evaluating the TPS2559 precision adjustable current limited power distribution switch intended for application where heavy capacitive loads and short circuits are likely to be encountered. The EVM contains header connectors for easy (...)

User guide: PDF
Not available on TI.com
Evaluation board

TUSB319EVM — USB Type-C DFP Port Controller Evaluation Module

The TUSB319EVM provides a complete reference design, which is a DFP controller ideal for Type-C USB chargers, it supports up to 3A@5V VBUS power signaling and VBUS detection.
User guide: PDF
Not available on TI.com
Simulation model

TPS2559 Unencrypted PSpice Transient Model Package (Rev. B)

SLVMAA7B.ZIP (72 KB) - PSpice Model
Reference designs

PMP10885 — 85 to 265VAC Input 5V@4.8A Dual Port USB Charger Reference Design

The PMP10885 reference design is capable of charging two devices simultaneously at 2.4A each. The UCC24636 synchronous rectifier controller and CSD18531Q5A FET reduce the rectifier loss and provide high efficiency with a minimal increase in cost.  The TPS2559 provides accurate and independent (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP11281 — Universal AC Input, 5V/10A/50W PSR Flyback Power Supply W/over 88% Avg Efficiency Reference Design

PMP11281 is a quasi-resonant Flyback power suppy based on the UCC28730 primary side regulation (PSR) controller. The elimination of optocoupler using PSR topology promises higher reliability and lower system cost. The design achieves less than 40mW standby power losses and over 88% average (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP11232 — Universal AC Input 5V/6A/30W PSR Flyback Power Supply Reference Design w/Over 89.5% Avg Efficiency

PMP11232 is a quasi-resonant Flyback power suppy based on the UCC28730 primary side regulation (PSR) controller. The elimination of optocoupler using PSR topology promises higher reliability and lower system cost. The design achieves less than 40mW standby power losses and over 89.5% average (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP10974 — Universal AC Input 5V/10A/50W PSR Flyback Power Supply With Over 89% Avg Efficiency Reference Design

PMP10974 is a quasi-resonant Flyback power suppy based on the UCC28730 primary side regulation (PSR) controller. The elimination of optocoupler using PSR topology promises higher reliability and lower system cost. The design achieves less than 40mW standby power losses and over 89% average (...)
Test report: PDF
Schematic: PDF
Package Pins Download
VSON (DRC) 10 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos