Texas Instruments

TPS2393 - -48V Hot Swap Controller | Texas Instruments

Name: TPS2393
Brand: Texas Instruments
Price: 1.83 USD
Availability: InStock

MPN: TPS2393 ✓ Active

In Stock Ships in 1-3 business days

-20 V to -80 V Vdss Programmable Id 14-TSSOP Package

From $1.83 USD / Unit

MOQ: 1 |

Price updated: 2026-08-26

Volume Pricing

Qty	Unit Price	Extended
1	$2.85	$2.85
10	$2.56	$25.60
100	$2.28	$228.00
500	$2.05	$1,025.00
1,000	$1.83	$1,830.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for TPS2393 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

TPS2393A

✅ Drop-In

📦 14-TSSOP

Adds Insertion and Removal Detection Delay

📋 Reference alternative (not in catalog)

TPS2392

✅ Drop-In

📦 14-TSSOP

Simpler version without overvoltage protection and programmable fault timer

📋 Reference alternative (not in catalog)

TPS2393PWR

✅ Drop-In

📦 14-TSSOP

Tape and reel packaging variant

📋 Reference alternative (not in catalog)

TPS2393PW

✅ Drop-In

📦 14-TSSOP

Tube packaging variant

📋 Reference alternative (not in catalog)

ℹ️ 1 cross-package part(s) hidden — different package requires PCB rework and is not a true drop-in replacement. Contact us if you need cross-package suggestions.

TPS2393 Maximum Ratings & Electrical Characteristics

Supply Voltage Range	-20 V to -80 V
Absolute Maximum Voltage	-100 V
Number of Channels	1
Package	14-TSSOP
Operating Temperature Range	-40°C to +85°C
Mounting Type	Surface Mount
RoHS Status	Compliant
Inrush Current Limit	Programmable
Fault Output	Active-low
Undervoltage Lockout	Programmable
Overvoltage Protection	Yes
Fault Timer	Programmable
Latch-off Mode	Yes
Charge Pump	Internal
External MOSFET Drive	Yes

TPS2393 Pin Configuration

Pin 1	VIN — Negative input supply voltage
Pin 2	GATE — Gate drive for external MOSFET
Pin 3	SENSE — Current sense input
Pin 4	FAULT — Active-low fault output
Pin 5	UVLO — Undervoltage lockout programming
Pin 6	OVLO — Overvoltage lockout programming
Pin 7	TIMER — Fault timer programming
Pin 8	GND — Ground
Pin 9	VOUT — Output voltage to load
Pin 10	NC — No connect
Pin 11	NC — No connect
Pin 12	NC — No connect
Pin 13	NC — No connect
Pin 14	NC — No connect

Safe Operating Area (SOA) & Thermal Characteristics

No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

TPS2393 is suitable for 6 applications: Telecom Line Cards, Base Station Power Distribution, Server Backplanes, Industrial -48V Power Distribution, Networking Equipment, Battery Backup Systems.

🌐

Telecom Line Cards

The TPS2393 is ideal for telecom line cards operating on -48V backplanes. Its wide input range of -20V to -80V accommodates voltage variations, and the programmable inrush current limit prevents glitches during board insertion. The fault output enables system monitoring, ensuring reliable operation in central office equipment.

Recommended

TPS2393A (Enhanced version with insertion detection delay) TPS2392 (Simpler alternative for basic hot swap)

📡

Base Station Power Distribution

In cellular base stations, the TPS2393 manages -48V power distribution to RF modules and digital boards. Its overvoltage protection and programmable fault timer safeguard against transients, while the charge pump drives an external MOSFET for efficient power path control. The industrial temperature range ensures operation in outdoor enclosures.

Recommended

TPS2393A (Adds insertion detection for hot-swap modules) TPS2392 (Cost-effective alternative for non-critical paths)

🖥️

Server Backplanes

The TPS2393 enables safe hot-swapping of server blades in data centers. Its -48V compatibility suits telecom-style backplanes, and the programmable current limit prevents voltage droop during insertion. The latch-off mode protects against persistent faults, reducing downtime in high-availability systems.

Recommended

TPS2393A (Provides insertion detection for blade servers) TPS2392 (Simpler alternative for basic hot swap)

🏭

Industrial -48V Power Distribution

For industrial control systems using -48V power, the TPS2393 provides robust hot swap protection. Its wide input range and overvoltage protection handle industrial transients, while the programmable UVLO ensures proper power-up sequencing. The 14-TSSOP package is suitable for compact PLC and industrial PC designs.

Recommended

TPS2393A (Enhanced timing for industrial insertion) TPS2392 (Basic hot swap for less critical loads)

🌐

Networking Equipment

In routers and switches, the TPS2393 manages -48V power for line cards and interface modules. Its fault output and programmable timer enable system-level monitoring and protection. The device's ability to withstand -100V spikes ensures reliability in environments with power surges.

Recommended

TPS2393A (Adds insertion detection for network modules) TPS2392 (Cost-effective for non-redundant paths)

🔋

Battery Backup Systems

The TPS2393 is used in -48V battery backup systems to safely connect and disconnect battery banks. Its programmable current limit and overvoltage protection manage charging and discharging, while the latch-off mode prevents damage from sustained faults. The wide input range accommodates battery voltage variations.

Recommended

TPS2393A (Enhanced detection for battery insertion) TPS2392 (Simpler alternative for basic protection)

Recommended Products Summary

TPS2393A Enhanced version with insertion detection delay Used in: Telecom Line Cards, Base Station Power Distribution, Server Backplanes, Industrial -48V Power Distribution, Networking Equipment, Battery Backup Systems TPS2392 Simpler alternative for basic hot swap Used in: Telecom Line Cards, Base Station Power Distribution, Server Backplanes, Industrial -48V Power Distribution, Networking Equipment, Battery Backup Systems

What is the operating voltage range of TPS2393?

The TPS2393 operates over a supply voltage range of -20 V to -80 V, and is rated to withstand spikes to -100 V. According to the TI datasheet, this makes it suitable for nominal -48-V telecom systems.

What is the price of TPS2393?

As of 2026-08-27, the TPS2393PW is priced at approximately $0.83 at LCSC for single-unit quantities, while the TPS2393PWR is available from DigiKey and Mouser. Volume pricing at 1000 units is around $1.83.

Where can I buy TPS2393 online?

TPS2393 is available from major distributors including DigiKey, Mouser, and LCSC. The TPS2393PWR (tape and reel) is in stock at DigiKey, and the TPS2393PW (tube) is available at Mouser and LCSC.

What is the lead time for TPS2393?

Lead time for TPS2393 varies by distributor and packaging. As of 2026-08-27, DigiKey shows TPS2393PWR as 'ships today' for in-stock items. For larger quantities, lead time may be 4-6 weeks depending on availability.

Is TPS2393 in stock?

Yes, TPS2393 is currently in stock at major distributors. DigiKey lists TPS2393PWR as available, and LCSC shows TPS2393PW in stock. Check current inventory on distributor websites for real-time availability.

TPS2393 vs TPS2393A - what is the difference?

The TPS2393A is an enhanced version of the TPS2393 with an added Insertion and Removal Detection Delay feature. Both are -48V hot swap controllers in 14-TSSOP, but the TPS2393A provides additional timing control for board insertion and removal.

When should I choose TPS2393 over TPS2393A?

Choose the TPS2393 when you do not need the Insertion and Removal Detection Delay feature, which is included in the TPS2393A. If your system requires precise timing for board insertion/removal detection, the TPS2393A is the better choice.

What is the best drop-in replacement for TPS2393?

The TPS2393A is the best drop-in replacement for TPS2393 as it is pin-compatible and offers additional features. The TPS2392 is also a drop-in alternative with similar functionality but without some features. Verify pinout before replacement.

Where can I download the TPS2393 datasheet PDF?

The TPS2393 datasheet PDF is available from the TI product page at https://www.ti.com/product/TPS2393. It is also available from third-party sites like Alldatasheet and Datasheet4U.

Where can I find the TPS2393 pinout?

The TPS2393 pinout is detailed in the datasheet, available from TI's product page. The 14-pin TSSOP package pinout includes pins for VIN, VOUT, GATE, SENSE, FAULT, and programming pins.

Hey Google, what can replace TPS2393?

The TPS2393 can be replaced by the TPS2393A, which is pin-compatible and adds Insertion and Removal Detection Delay. The TPS2392 is also a drop-in alternative. Both are from Texas Instruments and share the same 14-TSSOP package.

Is TPS2393 the same as TPS2392?

No, the TPS2393 and TPS2392 are not identical. The TPS2393 includes additional features such as overvoltage protection and a programmable fault timer, while the TPS2392 is a simpler version. Both are -48V hot swap controllers in 14-TSSOP.

What are the key specifications of TPS2393 that engineers should know?

The TPS2393 operates from -20V to -80V, withstands -100V spikes, and comes in a 14-TSSOP package. It features programmable inrush current limiting, undervoltage lockout, overvoltage protection, and an active-low fault output. It is designed for -48V telecom systems.

What is the best cross-brand equivalent for TPS2393?

There is no direct cross-brand equivalent for TPS2393 from other major manufacturers. The TPS2393 is a specialized -48V hot swap controller, and most alternatives come from Texas Instruments. For cross-brand options, consider the LTC4210 from Analog Devices, but verify pin compatibility.

Engineering reference data for TPS2393 — comparison, design guidance, and compliance information.

Selection Guide

Choose the TPS2393 for -48V hot swap applications requiring overvoltage protection and a programmable fault timer. If you need insertion and removal detection delay, select the TPS2393A. For simpler, cost-sensitive designs without overvoltage protection, the TPS2392 is a suitable alternative. All three are pin-compatible in the 14-TSSOP package, allowing easy PCB reuse. The TPS2393PWR is the tape and reel version for automated assembly.

Comparison with Alternatives

Parameter	This Product	TPS2393A	TPS2392	TPS2393PWR
Package	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP
Brand	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Supply Voltage Range	-20V to -80V	-20V to -80V	-20V to -80V	-20V to -80V
Insertion Detection Delay	No	Yes	No	No
Overvoltage Protection	Yes	Yes	No	Yes
Programmable Fault Timer	Yes	Yes	No	Yes
Packaging	Tube	Tube	Tube	Tape & Reel
Price (1pc)	$2.85	$2.95	$2.50	$2.85

Key Differentiators

Wide input voltage range of -20V to -80V (vs TPS2392)
Overvoltage protection and programmable fault timer (vs TPS2392)
Insertion and Removal Detection Delay (vs TPS2393A)

Design Notes

The TPS2393 is designed for -48V systems. Ensure the external MOSFET is rated for the maximum input voltage plus spikes (-100V). Use a sense resistor with appropriate power rating to handle the inrush current. The charge pump provides gate drive, but the MOSFET gate capacitance should be considered for switching speed.

Place the sense resistor close to the SENSE pin to minimize parasitic inductance. Use Kelvin connections for accurate current sensing. The GATE pin should have a low-inductance path to the MOSFET gate. Provide adequate copper area for heat dissipation from the MOSFET.

Do not exceed the absolute maximum voltage of -100V. Ensure the UVLO and OVLO resistors are set correctly to avoid false triggering. The fault timer should be programmed to match the system's inrush time to prevent nuisance trips. Verify the latch-off mode behavior for your application.