TPS2346PWG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TPS2346PWG4 is a 4-channel optical network hot-swap controller from Texas Instruments in a 24-pin TSSOP package. It manages power sequencing and inrush current control for four independent channels to enable live board insertion without system disruption. Operates 0°C to 70°C; available from stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 24
- Lifecycle
- OBSOLETE
- Datasheet
- TPS2346PWG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS2346PWG4?
- 4-channel hot-swap control in a single 24-pin TSSOP IC enables simultaneous power management of four independent optical module slots
- Built-in inrush current limiting and overcurrent protection prevent bus voltage droop during live board insertion in carrier-grade optical equipment
- Fixed threshold architecture simplifies design by eliminating external programming resistors while maintaining reliable fault detection across all 4 channels
What is TPS2346PWG4 used for?
TPS2346PWG4 is purpose-built for optical network line cards and transponder modules where SFP, SFP+, or XFP pluggable optics must be inserted and removed without powering down the system. Its 4-channel architecture allows a single IC to manage all optical port power slots on a compact blade, reducing the IC count per card by up to 75% versus single-channel alternatives. It is also used in telecom shelves and SONET/SDH equipment chassis requiring IEC 60950-compliant hot-swap power management.
What are the specifications of TPS2346PWG4?
| Pbfree Code | No |
| YTEOL | 0 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | HOT SWAP CONTROLLER |
| JESD-30 Code | R-PDSO-G24 |
| Number of Channels | 4 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP24,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Qualification Status | Not Qualified |
| Supply Voltage-Nom (Vsup) | 5.15V |
| Surface Mount | YES |
| Temperature Grade | COMMERCIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the TPS2346PWG4 datasheet?
TPS2346PWG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS2346PWG4?
Compatible alternatives and drop-in replacements for TPS2346PWG4:
Frequently Asked Questions
How many hot-swap channels does TPS2346PWG4 control simultaneously?
TPS2346PWG4 controls 4 independent hot-swap channels within a single 24-pin TSSOP package, allowing one IC to manage four separate optical module power rails. Each channel includes its own overcurrent fault latch and inrush control, so a fault on one channel does not affect the remaining 3 channels.
What is the operating temperature range of TPS2346PWG4 and is it suitable for data-centre line cards?
TPS2346PWG4 is rated for commercial operation from 0°C to +70°C, covering data-centre and central-office environments where inlet air temperatures are controlled. For harsher environments above 70°C, designers should evaluate the industrial-grade variant or add a thermal derating margin for the 24-pin TSSOP package dissipation.
How does TPS2346PWG4 protect the bus from inrush current during optical module hot-plug events?
TPS2346PWG4 controls the gate of an external pass-FET on each channel to ramp supply voltage slowly, limiting inrush current to a safe level determined by the external sense resistor. This prevents the power bus from drooping below the minimum operating voltage of other line-card components during the capacitor-charging transient of a newly inserted optical module.
What package does TPS2346PWG4 come in and how does that compare to a discrete solution?
TPS2346PWG4 is supplied in a 24-pin TSSOP package with 0.65 mm pitch, integrating 4-channel hot-swap logic in approximately 8.7 mm × 4.4 mm of board space. A discrete solution using four single-channel hot-swap controllers would require at least 4 separate packages plus additional passive components, roughly tripling the PCB area and component count.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit