My Inquiry
My Account
Texas Instruments TPS26622DRCR
- Part No.:
- TPS26622DRCR
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS26622DRCR.pdf
- Description:
- IC ELECTRONIC FUSE 5% 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,058
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS26622DRCR from Texas Instruments is a 60-V, 800-mA industrial eFuse with integrated input reverse polarity protection, fixed 38-V overvoltage clamp, latch-off fault response, and 478-mΩ total RON. It operates from 4.5 V to 60 V, delivers ±5% current limit accuracy at 880 mA, and blocks reverse current in 0.3 µs-enabling robust DC bus protection in PLC I/O modules and AC/servo drives.
For engineers reviewing the TPS26622DRCR datasheet, TPS26622DRCR pinout, TPS26622DRCR application, or TPS26622DRCR equivalent, key selection criteria include its fixed OV clamp (not adjustable cut-off), latch-off behavior under overcurrent/overtemperature, absence of output-side reverse polarity protection, and 10-pin 3 mm × 3 mm VSON package requiring PowerPad™ thermal connection to RTN.
Technical Context
The TPS26622DRCR integrates back-to-back N-channel MOSFETs to enable bidirectional blocking-supporting input reverse polarity protection down to –60 V while preventing reverse current flow during brownout or power-fail holdup. Its fixed 38-V overvoltage clamp (not adjustable cut-off) activates without external components when input exceeds threshold, limiting downstream voltage stress.
Protection logic includes programmable undervoltage lockout (UVLO) via resistor on pin 2, current limit set by RILIM on pin 7 (7.5 kΩ → 880 mA), and slew-rate control via capacitor on pin 8 (dVdT). Faults trigger open-drain FLT pin assertion and latched shutdown-requiring SHDN pin toggle to reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage Range | 4.5 V to 60 V - supports common industrial DC buses including 24 V and 48 V systems |
| Current Limit Accuracy | ±5% at 880 mA - enables precise input supply sizing without overdesign margin |
| Total RON | 478 mΩ max at 25°C - limits conduction loss to ≤430 mW at 800 mA load |
| Overvoltage Response | Fixed 38-V clamp - clamps excess voltage without disconnecting load, preserving system uptime |
| Fault Behavior | Latch-off - holds OFF after overcurrent/overtemperature until SHDN pin is cycled |
| Reverse Current Blocking | 0.3 µs response - prevents damaging reverse current flow during input polarity reversal |
| Quiescent Current | 340 µA operating / 12 µA shutdown - minimizes standby power in always-on systems |
Pinout & Package
TPS26622DRCR is housed in a 10-pin 3.00 mm × 3.00 mm VSON (DRC) package with exposed PowerPad™ for thermal dissipation. The PowerPad must be soldered to an RTN plane-no electrical connection other than thermal grounding is permitted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power input | High-voltage DC bus connection; withstands –60 V to +62 V transient |
| 2 UVLO | Undervoltage lockout setting | Resistor divider sets turn-on threshold; disable by connecting to IN via ≥1-MΩ resistor |
| 3 OVP | Overvoltage clamp enable | Must be tied to RTN to activate fixed 38-V clamp; not used for adjustable OVP |
| 4 SHDN | Shutdown control | Pull low to enter 12-µA shutdown; toggle low→high to reset latched faults |
| 5 RTN | Reference ground | Internal reference node for UVLO, OVP, ILIM, dVdT-separate from system GND |
| 6 GND | System ground | Return path for FLT, SHDN, and internal bias; connect to PCB ground plane |
| 7 ILIM | Current limit programming | RILIM to RTN sets trip point (7.5 kΩ = 880 mA); open/short tested per UL 60950 |
| 8 dVdT | Slew rate control | Capacitor to RTN controls output ramp time (e.g., 22 nF → 11 ms to 24 V) |
| 9 FLT | Fault indicator | Open-drain active-low signal; asserts during UVLO, OVP, overcurrent, or thermal shutdown |
| 10 OUT | Protected output | Delivers regulated, protected power to load; leakage <12 µA in off state at 57 V |
Key Features
| Feature | Design Value |
|---|---|
| Integrated input reverse polarity protection | Withstands –60 V on IN pin without external diodes or MOSFETs-eliminates discrete protection circuitry |
| Fixed 38-V overvoltage clamp | Clamps transients above 38 V without disconnecting load-maintains system operation during overvoltage events |
| Latch-off fault response | Stops power delivery permanently after overcurrent or overtemperature-prevents repeated fault cycling in critical systems |
| Programmable inrush control | dVdT pin accepts capacitor to set controlled output ramp (e.g., 22 nF → 11 ms rise to 24 V)-reduces hot-swap stress |
| Fast reverse current blocking | 0.3 µs response to VIN–VOUT < –54 mV-protects against reverse feed during brownout or backup battery scenarios |
| UL 2367 & IEC 62368-1 certified | Recognized per UL File No. 169910 with RILIM ≥ 7.5 kΩ-meets safety requirements for industrial end equipment |
Applications
| PLC I/O Module Protection | AC/Servo Drive DC Bus Protection |
|---|---|
|
Use Scenario: Protecting 24-V or 48-V field-side I/O channels from wiring errors, surge, and reverse polarity during installation or maintenance. IC Role / Device Role / Timing Role: High-side eFuse providing input polarity reversal blocking, IEC 61000-4-5 surge immunity, and fast short-circuit isolation. Use Value: Eliminates need for external TVS, reverse-blocking diodes, and fuses-reducing BOM count and board area by >3 components per channel. |
Use Scenario: Securing DC link supply to servo motor controllers against overvoltage transients induced by regenerative braking or line surges. IC Role / Device Role / Timing Role: Clamp-mode eFuse limiting bus voltage to 38 V during overvoltage events while maintaining continuous operation. Use Value: Prevents gate driver IC damage without interrupting motion control loop-avoids costly machine downtime during transient events. |
| Sensor & Control Power Distribution | Thermostat Power Management |
|
Use Scenario: Distributing clean, protected 12-V or 24-V power to multiple industrial sensors (e.g., pressure, temperature, flow) in harsh environments. IC Role / Device Role / Timing Role: Programmable current-limited power switch with adjustable UVLO and slew rate to match sensor startup profiles. Use Value: Enables individual channel current limiting (±5% accuracy) and soft-start-prevents shared rail collapse when multiple sensors power up simultaneously. |
Use Scenario: Providing isolated, surge-protected power to HVAC thermostats connected to building automation systems with long wiring runs. IC Role / Device Role / Timing Role: Industrial-grade eFuse delivering reverse polarity immunity, IEC 61000-4-4 EFT hardening, and latch-off fault containment. Use Value: Guarantees fail-safe shutdown during wiring faults-prevents thermostat malfunction or fire hazard in Class 2 wiring installations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar industrial eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS26623DRCR | Same package and pinout; auto-retry fault response instead of latch-off; identical 38-V clamp and RON | Suitable where automatic recovery after transient overcurrent is preferred (e.g., non-critical sensors) | Select TPS26623DRCR if system requires self-recovery after brief overload-TPS26622DRCR is preferred for safety-critical latch-on-fault behavior. |
| TPS26620DRCR | Same package and pinout; adjustable overvoltage cut-off (not fixed clamp); latch-off; no output reverse polarity | Better for systems needing configurable OVP threshold (e.g., 30–50 V range) but lacking clamp-mode continuity requirement | Choose TPS26620DRCR when OVP threshold must be tuned per design-TPS26622DRCR provides deterministic 38-V clamping without resistor network. |
Compared with TPS26623DRCR (auto-retry) and TPS26620DRCR (adjustable OVP cut-off), the TPS26622DRCR uniquely combines fixed 38-V clamping with latch-off behavior-making it optimal for applications demanding guaranteed fault containment and uninterrupted operation during overvoltage events.
Availability
TPS26622DRCR is available at Aetrix Electronics and suitable for PLC I/O modules, AC/servo drives, and industrial sensor power distribution requiring stable component supply, long-term lifecycle support, and compliance with UL 2367 and IEC 62368-1.
Supply support for TPS26622DRCR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-reliability power management solutions for industrial, automotive, and communications markets.
The TPS2662x family was designed specifically for industrial eFuse applications-delivering integrated high-voltage protection, programmable fault responses, and compact packaging to simplify DC bus protection in harsh environments.
FAQ
What is the overvoltage protection method implemented in the TPS26622DRCR?
The TPS26622DRCR implements a fixed 38-V overvoltage clamp-not an adjustable cut-off. When input voltage exceeds ~37.5 V, the device clamps the output to protect downstream circuitry while maintaining power delivery. This differs from TPS26620/TPS26621 which use resistor-programmable OVP cut-off. The clamp is activated by tying the OVP pin to RTN.
Does the TPS26622DRCR provide output reverse polarity protection?
No, the TPS26622DRCR provides only input-side reverse polarity protection down to –60 V. Output reverse polarity protection is exclusive to TPS26624 and TPS26625 variants. For TPS26622DRCR, reverse voltage applied to the OUT pin (e.g., VOUT < 0 V while IN is powered) is not blocked-system-level design must prevent this condition.
How is the current limit set on the TPS26622DRCR, and what is its accuracy?
The TPS26622DRCR uses an external resistor (RILIM) from pin 7 (ILIM) to RTN to set the current limit. With RILIM = 7.5 kΩ, the device limits at 880 mA with ±5% accuracy across temperature and voltage. Accuracy degrades slightly at lower currents (e.g., ±10% at 25 mA), as confirmed in Figure 7-20 of the datasheet.
What fault response does the TPS26622DRCR use, and how is it reset?
The TPS26622DRCR uses latch-off fault response for overcurrent, overtemperature, and overvoltage events-meaning it shuts down and holds OFF until manually reset. Reset is performed by toggling the SHDN pin: pull low then high. This behavior contrasts with auto-retry variants like TPS26623DRCR, which attempt periodic restarts.
What thermal considerations apply to the TPS26622DRCR's VSON (DRC) package?
The TPS26622DRCR's 3 mm × 3 mm VSON package requires connection of the exposed PowerPad™ to an RTN copper plane for thermal performance. With proper layout, junction-to-board thermal resistance is 20.7°C/W. At 800 mA and 478 mΩ RON, power dissipation reaches ~305 mW-resulting in ~6.3°C rise above board temperature, assuming 2-layer board with adequate RTN area.
TPS26622DRCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Electronic Fuse
- Sensing Method:
- -
- Accuracy:
- ±5%
- Voltage - Input:
- 4.5V ~ 60V
- Current - Output:
- 880mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS26622DRCR FAQ
1.How can I place an order for TPS26622DRCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS26622DRCR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS26622DRCR reliable?
The price and inventory of TPS26622DRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS26622DRCR is usually 5 days.
3.What payment methods are accepted for TPS26622DRCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS26622DRCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS26622DRCR?
TPS26622DRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS26622DRCR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS26622DRCR?
For technical support, including TPS26622DRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS26622DRCR requirements.
6.How does Aetrix verify that TPS26622DRCR is sourced from the original manufacturer or authorized distributors?
All TPS26622DRCR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS26622DRCR meets industry standards.
7.What is the process for return or replacement of TPS26622DRCR?
All TPS26622DRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS26622DRCR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS26622DRCR part is unused and in its original packaging.
Return procedure for TPS26622DRCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS26622DRCR Tags
.jpg)
-
PSSI2021SAY,115
Nexperia USA Inc.
-
BCR401RE6327HTSA1
Infineon Technologies
-
INA199B2DCKR
Texas Instruments
-
INA199A1DCKR
Texas Instruments
-
INA199B1DCKR
Texas Instruments
-
NSI45015WT1G
onsemi
-
NSI45020T1G
onsemi
-
NSI45030AT1G
onsemi
-
NSI45025AT1G
onsemi
-
NSI45020AT1G
onsemi
-
NSI50010YT1G
onsemi
-
LM334Z/NOPB
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
