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Texas Instruments TPS26620DRCR
- Part No.:
- TPS26620DRCR
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS26620DRCR.pdf
- Description:
- IC ELECTRONIC FUSE 5% 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:5,254
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Product details
Overview
TPS26620DRCR from Texas Instruments is a 60-V, 800-mA industrial eFuse with integrated input reverse polarity protection, 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-used in PLC I/O modules and AC/servo drives for robust DC bus protection.
For engineers reviewing the TPS26620DRCR datasheet, TPS26620DRCR pinout, TPS26620DRCR application, or TPS26620DRCR equivalent, key selection criteria include adjustable 25–880 mA current limiting, 38-V fixed overvoltage clamp (not applicable-TPS26620 uses adjustable OVP cut-off), latch-off behavior under overcurrent/overtemperature, and 3 mm × 3 mm VSON-10 package with PowerPad thermal enhancement.
Technical Context
The TPS26620DRCR integrates back-to-back MOSFETs enabling bidirectional blocking and fast 0.3 µs reverse-current shutdown. Its programmable UVLO (1.2 V threshold) and OVP (resistor-adjustable cut-off) operate independently of load conditions, while dV/dT-controlled slew rate limits inrush via external capacitor on pin 8.
Unlike TPS26624/25, it supports input-side reverse polarity only (–60 V), not output-side. Fault handling is latch-off: SHDN pin cycling required for recovery after overcurrent or thermal shutdown-no auto-retry functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage | 4.5 V to 60 V input range; withstands ±62 V absolute max-supports wide industrial DC bus voltages including 24 V, 48 V, and 60 V systems. |
| Current Limit Range | 25 mA to 880 mA (±5% accuracy at 880 mA); set by ILIM-to-RTN resistor-enables precise load protection without overdesigning upstream supply. |
| Total RON | 478 mΩ typical at 25°C; increases to ≤800 mΩ across –40°C to +125°C-minimizes power loss and thermal rise in high-current paths. |
| Reverse Polarity Protection | Input-side only, down to –60 V; blocks reverse current in 0.3 µs-prevents damage during accidental negative supply connection. |
| Fault Response | Latch-off mode for overcurrent and overtemperature; requires SHDN pin toggle to reset-ensures persistent isolation until manual intervention. |
| Quiescent Current | 340 µA operating / 12 µA shutdown-reduces standby power in always-on industrial control nodes. |
| Package | VSON-10 (3 mm × 3 mm) with exposed PowerPad-enables low thermal resistance (RθJB = 20.7°C/W) for high-power dissipation in compact layouts. |
Pinout & Package
VSON-10 (DRC) package: 3 mm × 3 mm body with exposed thermal PowerPad on underside, rated for –40°C to +125°C junction temperature. PowerPad must be soldered to RTN plane for thermal performance; not used as sole electrical connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power input | High-voltage DC bus entry point; withstands –60 V to +62 V transient-connects directly to unregulated supply rail. |
| 2 UVLO | Undervoltage lockout input | Resistor-programmable threshold (1.2 V typ); opens FET if input drops below setpoint-prevents brownout operation and system instability. |
| 3 OVP | Overvoltage protection input | Resistor-programmable cut-off threshold (1.2 V typ); disables output above set voltage-protects downstream circuitry from transients or regulator failure. |
| 4 SHDN | Shutdown control | Active-low enable; pulling low enters 12 µA shutdown; toggling resets latched faults-enables remote fault recovery and power sequencing. |
| 5 RTN | Reference ground | Internal bias reference node; separate from system GND-must be connected to local ground plane near device for stable UVLO/OVP thresholds. |
| 6 GND | System ground | Return path for FLT, dVdT, ILIM, and SHDN logic-requires low-impedance connection to minimize noise coupling into sensitive analog inputs. |
| 7 ILIM | Current limit programming | Resistor-to-RTN sets trip point (7.5 kΩ → 880 mA); open/short resistors provide UL-certified fail-safe limits-enables single-component current tuning. |
| 8 dVdT | Slew rate control | Capacitor-to-RTN sets output ramp time (e.g., 22 nF → 11 ms); prevents inrush into large capacitive loads-critical for hot-swap and PoE applications. |
| 9 FLT | Fault indicator | Open-drain active-low flag; asserts during overcurrent, overtemperature, or OVP/UVLO events-drives LED or microcontroller interrupt with pull-up. |
| 10 OUT | Protected output | Switched, current-limited, and polarity-protected power rail-delivers regulated voltage to downstream loads with reverse-current blocking. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated input reverse polarity protection | Withstands –60 V input without external diodes or MOSFETs-eliminates discrete protection components and board space. |
| Adjustable output slew rate control | Programmable dV/dT via external capacitor on pin 8-enables controlled hot-plug startup into 1000+ µF bulk capacitance without tripping current limit. |
| Fast reverse current blocking | 0.3 µs response to reverse voltage (VIN – VOUT < –40 mV)-prevents energy backfeed during power-fail holdup in redundant supply systems. |
| Latch-off fault recovery | SHDN pin toggle required to clear overcurrent or thermal faults-ensures deliberate system reset before re-enabling power to faulty loads. |
| IEC 61000-4-5 surge compliance support | Robust internal protection blocks reduce external TVS count to one per rail-simplifies design for 1 kV/2 kV line-to-ground surge immunity. |
Applications
| PLC I/O Modules | AC and Servo Drives |
|---|---|
Use Scenario: Protecting 24 V DC field power distribution in modular PLC backplanes against wiring errors, short circuits, and reverse battery connection. IC Role / Device Role / Timing Role: Primary eFuse on each I/O channel; provides current limiting, reverse polarity blocking, and latch-off fault isolation. Use Value: Eliminates need for fuse replacement and manual reset; enables automatic channel disable during fault-improving uptime and reducing maintenance. | Use Scenario: Securing auxiliary 24 V control power rails feeding gate drivers, encoders, and safety logic in servo amplifier cabinets. IC Role / Device Role / Timing Role: High-side protection switch with programmable current limit and fast 220 ns short-circuit response. Use Value: Prevents cascading failures when encoder cables short or gate driver ICs fail-maintaining drive availability during partial faults. |
| Sensor and Controls | PoE High-Side Protection |
Use Scenario: Powering industrial 4–20 mA loop-powered sensors and smart transmitters from centralized 24 V or 48 V supplies. IC Role / Device Role / Timing Role: Input protection and inrush limiter; ensures clean power delivery despite long sensor cable capacitance and ESD events. Use Value: Enables hot-swap of sensor modules without disrupting other channels; meets IEC 61000-4-4 EFT immunity without added filtering. | Use Scenario: Adding IEEE 802.3af/at-compliant high-side protection to PoE-powered edge devices (e.g., IP cameras, access controllers). IC Role / Device Role / Timing Role: Secondary eFuse between PSE interface and DC-DC converter; handles inrush from PoE PD capacitance and load shorts. Use Value: Provides UL 2367 recognition and IEC 62368-1 certification-meeting safety requirements for Class 4 PoE deployments without redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS26621DRCR | Auto-retry fault response instead of latch-off; identical pinout, RON, voltage/current specs. | Suitable where automatic recovery after transient overloads is preferred-e.g., non-critical sensor nodes with intermittent faults. | Select TPS26621DRCR only if system firmware can handle repeated fault cycles; avoid in safety-critical or latch-required scenarios. |
| TPS26630DRCR | Higher 1.5-A current rating, same 60-V max, but no integrated input reverse polarity protection-requires external MOSFET for reverse blocking. | Used when >880 mA load current is needed and reverse polarity risk is mitigated externally-e.g., custom power architectures with front-end protection. | Choose TPS26630DRCR only when higher current is mandatory and board space allows adding discrete reverse-protection FET. |
Compared with TPS26620DRCR, TPS26621DRCR offers automatic fault recovery but sacrifices guaranteed isolation during persistent faults, while TPS26630DRCR trades integrated reverse protection for higher current capacity-requiring additional components to match TPS26620DRCR's full protection suite.
Availability
TPS26620DRCR is available at Aetrix Electronics and suitable for PLC I/O modules, AC/servo drives, and sensor/control systems requiring stable component supply, long-term industrial lifecycle support, and certified surge protection capability.
Supply support for TPS26620DRCR 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 power management technologies, with deep expertise in industrial-grade protection ICs.
The TPS2662x family was designed specifically for rugged industrial power distribution-delivering integrated reverse polarity, precise current limiting, and surge-ready protection in compact VSON packages.
FAQ
What is the maximum continuous current rating of the TPS26620DRCR?
The TPS26620DRCR supports up to 880 mA continuous output current with ±5% limit accuracy at that level. Its 478-mΩ RON results in ~370 mW conduction loss at 880 mA, requiring proper PCB thermal design-especially with sustained loads above 500 mA at high ambient temperatures.
Does the TPS26620DRCR provide output-side reverse polarity protection?
No, the TPS26620DRCR provides input-side reverse polarity protection only (down to –60 V). Output-side reverse protection is exclusive to TPS26624 and TPS26625 variants. For bidirectional blocking, TPS26620DRCR must be paired with external circuitry or replaced with TPS26624DRCR.
How does the TPS26620DRCR respond to an overcurrent fault?
The TPS26620DRCR enters latch-off mode during overcurrent faults: the internal FET turns off and remains off until the SHDN pin is cycled low-then-high. The FLT pin asserts low during the fault and stays low until reset-enabling reliable fault detection and manual or microcontroller-initiated recovery.
What is the purpose of the dVdT pin on the TPS26620DRCR?
The dVdT pin on the TPS26620DRCR controls output voltage slew rate via an external capacitor to RTN. A 22-nF capacitor yields ~11 ms ramp time to 24 V, preventing inrush into large capacitive loads. This feature is essential for hot-swap compliance and avoiding false current-limit trips during power-up.
Is the TPS26620DRCR certified for industrial safety standards?
Yes, the TPS26620DRCR is UL 2367 recognized (File No. 169910) and IEC 62368-1 certified. These certifications validate its suitability for use in industrial end-equipment requiring reinforced insulation, fault containment, and surge immunity-without requiring additional external safety components.
TPS26620DRCR 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)
TPS26620DRCR FAQ
1.How can I place an order for TPS26620DRCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS26620DRCR 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 TPS26620DRCR reliable?
The price and inventory of TPS26620DRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS26620DRCR is usually 5 days.
3.What payment methods are accepted for TPS26620DRCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS26620DRCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS26620DRCR?
TPS26620DRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS26620DRCR 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 TPS26620DRCR?
For technical support, including TPS26620DRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS26620DRCR requirements.
6.How does Aetrix verify that TPS26620DRCR is sourced from the original manufacturer or authorized distributors?
All TPS26620DRCR 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 TPS26620DRCR meets industry standards.
7.What is the process for return or replacement of TPS26620DRCR?
All TPS26620DRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS26620DRCR, 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 TPS26620DRCR part is unused and in its original packaging.
Return procedure for TPS26620DRCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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