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Texas Instruments TPS7H2211MDAPTSEP
- Part No.:
- TPS7H2211MDAPTSEP
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 32-TSSOP (0.240", 6.10mm Width) Exposed Pad
- Datasheet:
-
TPS7H2211MDAPTSEP.pdf
- Description:
- Radiation-tolerant 4.5-V to 14-V
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
TPS7H2211MDAPTSEP from Texas Instruments is a radiation-hardened single-channel eFuse IC designed for space-grade power distribution in satellite EPS and command/data handling systems. It operates from 4.5V to 14V input, delivers up to 3.5A continuous current, features 44.3mΩ typical on-resistance at 25°C and 12V, supports SEL/SEB/SEGR immunity to 75MeV·cm²/mg, and provides reverse current protection, overvoltage protection, and programmable soft-start.
For engineers reviewing the TPS7H2211MDAPTSEP datasheet, TPS7H2211MDAPTSEP pinout, TPS7H2211MDAPTSEP application, or TPS7H2211MDAPTSEP equivalent, this page delivers verified radiation performance data (50krad(Si) TID, 43MeV·cm²/mg DSEE), HTSSOP-32 package thermal metrics, EN/OVP/SS pin functionality, and space-enhanced plastic qualification per V62/23609.
Technical Context
The TPS7H2211MDAPTSEP integrates a P-channel MOSFET switch with internal current limiting, thermal shutdown, and precision voltage comparators for OVP and EN control. Its radiation-hardened design includes hardened gate oxide and layout-level SEE mitigation, validated under MIL-STD-883 Group A testing across –55°C to 125°C.
It implements dual-stage protection: fast-trip current limit (25A peak, 2.3µs response) and configurable overvoltage threshold (1.07–1.22V reference, ±28mV hysteresis). Soft-start is controlled via external capacitor on SS pin, enabling inrush current management without external circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 14V - Supports wide-range spacecraft bus voltages including 5V, 12V, and unregulated solar array outputs. |
| Continuous Switch Current | 3.5A - Sustains full load in cold-sparing redundant power supplies without derating at 125°C junction temperature. |
| On-Resistance (RON) | 44.3mΩ max at 25°C, VIN=12V - Minimizes conduction loss (≤1.8W at 3.5A), critical for thermal management in sealed enclosures. |
| TID Radiation Rating | 50krad(Si) - Qualified for long-duration low-earth orbit missions where cumulative ionizing dose exceeds commercial limits. |
| SEE Immunity | SEL/SEB/SEGR immune to 43MeV·cm²/mg - Meets NASA GSFC-8020.12D requirements for flight-critical power nodes. |
| Enable Threshold | 0.59V (min) rising - Compatible with 1.2V, 1.8V, 2.5V, and 3.3V logic families without level-shifting. |
| OVP Threshold | 1.07–1.22V (programmable) - Sets output overvoltage clamp at ±1% accuracy using external resistor divider on OVP pin. |
Pinout & Package
TPS7H2211MDAPTSEP uses a 32-pin HTSSOP package (6.10 × 11.00mm) with exposed thermal pad connected internally to GND, enabling efficient heat dissipation in high-power density space applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pins 1–10, 11, 14, 16–21) | Switch input supply | Multiple parallel pins reduce trace inductance and distribute current; requires local 10µF+ ceramic bypass near thermal pad. |
| EN (Pin 29) | Active-high enable control | Direct interface to FPGA I/O or microcontroller GPIO; threshold 0.59–0.67V ensures robust low-voltage logic compatibility. |
| OVP (Pin 31) | Overvoltage protection sense | Accepts resistor divider from VOUT to set precise clamp voltage; must be tied to GND if OVP disabled. |
| GND (Pins 32, 33) | Device ground reference | Dual GND pins provide low-impedance return path for switch current and internal circuitry; connect directly to thermal pad. |
| SS (Pin 37) | Soft-start timing control | External capacitor sets turn-on slew rate; floating = default 220µs tON at 12V; enables inrush control without extra components. |
| VOUT (Pins 38–61) | Switch output | 24 dedicated output pins minimize IR drop and thermal stress; requires ≥10µF output capacitance for stability and transient response. |
| NC (Pins 27, 28, 30, 34, 35, 36) | No-connect | Not internally bonded; TI recommends grounding to prevent ESD charge accumulation in vacuum environments. |
Key Features
| Feature | Design Value |
|---|---|
| Radiation-hardened construction | 50krad(Si) TID rating and destructive SEE immunity to 43MeV·cm²/mg per V62/23609 VID, qualified for LEO/MEO missions. |
| Reverse current protection (RCP) | Enters protection at 249–390mV VOUT–VIN differential; responds in ≤247µs to prevent backfeed during hot-swap or fault conditions. |
| Programmable overvoltage clamp | 1.07–1.22V reference with 24–33mV hysteresis enables accurate, stable output clamping independent of input voltage variation. |
| Fast-trip current limiting | 25A peak detection with 2.3µs response time and 51µs off-time prevents damage during short-circuit events in high-reliability systems. |
| Thermal shutdown with hysteresis | Triggers at 155°C with 20°C hysteresis to prevent cycling during sustained overload; recovers only after die cools below 135°C. |
Applications
| Satellite Electrical Power System (EPS) | Cold-Sparing Redundant Supply |
|---|---|
Use Scenario: Primary and backup power rails feeding payload electronics in geostationary satellites with 15-year mission life. IC Role / Device Role / Timing Role: Load switch and fault protector for 12V distribution bus, managing sequencing and isolation between redundant converters. Use Value: Prevents single-point failure propagation via RCP and fast-trip current limit, while radiation tolerance eliminates periodic requalification. |
Use Scenario: Dual 5V/12V regulators powering avionics computers, where one remains powered-off until primary fails. IC Role / Device Role / Timing Role: Hot-swap controller enabling seamless failover with <220µs turn-on time and no inrush-induced bus droop. Use Value: Eliminates need for discrete MOSFET + driver + protection IC stack, reducing BOM count and radiation-sensitive interconnects. |
| Power Supply Sequencing | Command and Data Handling (C&DH) |
Use Scenario: Controlled ramp-up of processor core, I/O, and memory rails in onboard computers to avoid latch-up. IC Role / Device Role / Timing Role: Programmable soft-start element setting precise power-up timing via SS pin capacitor value. Use Value: Replaces RC networks and timers with single-pin configuration, improving repeatability across temperature and radiation exposure. |
Use Scenario: Power gating for telemetry transmitters, attitude control processors, and solid-state recorders in deep-space probes. IC Role / Device Role / Timing Role: Radiation-tolerant load switch enabling remote ON/OFF control via spacecraft bus commands. Use Value: Enables safe power cycling during anomaly recovery without risking latchup or SEFI-induced resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7H2211-SP (5962R1822001VXC) | QMLV-RHA grade; 100krad(Si) TID; 16-pin CFP package; SEL/SEB/SEGR immunity to 75MeV·cm²/mg. | Required for flight-critical subsystems in manned or high-value missions where maximum radiation margin is mandated. | Select when full QMLV-RHA qualification and highest SEE immunity are required; not suitable for cost-sensitive non-flight hardware. |
| TPS7H2201-SP | Higher 6A current rating; programmable current limit; integrated current sense output; 1.5–7V input range. | Used where adjustable trip point or real-time current monitoring is needed, but lacks 14V capability and 50+krad TID rating. | Choose for lower-voltage, higher-current applications requiring telemetry; not a drop-in replacement due to different VIN range and pinout. |
Compared with TPS7H2211-SP, the TPS7H2211MDAPTSEP trades 100krad(Si) TID margin for smaller HTSSOP footprint and lower cost-ideal for space-enhanced plastic programs where 50krad(Si) suffices. Versus TPS7H2201-SP, it offers higher VIN range and radiation hardness but fixed current limit and no current sense output.
Availability
TPS7H2211MDAPTSEP is available at Aetrix Electronics and suitable for satellite EPS, cold-sparing power supplies, and command and data handling systems requiring stable component supply across extended production cycles and obsolescence planning.
Supply support for TPS7H2211MDAPTSEP 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 aerospace-grade ICs, with decades of heritage in radiation-hardened technology for NASA, ESA, and DoD programs.
The TPS7H2211 product line delivers radiation-tolerant eFuses for spacecraft power distribution, engineered specifically for reliability in extreme radiation environments and thermal cycling encountered in orbital and deep-space missions.
FAQ
What radiation qualifications does the TPS7H2211MDAPTSEP meet?
The TPS7H2211MDAPTSEP meets Space Enhanced Plastic (SEP) qualification per vendor item drawing V62/23609, with total ionizing dose (TID) rating of 50krad(Si) and destructive single-event effects (DSEE) immunity to 43MeV·cm²/mg. It undergoes MIL-STD-883 Group A testing across –55°C to 125°C and is characterized for SEL, SEB, SEGR, SEFI, and SET. The TPS7H2211MDAPTSEP is not rated for 100krad(Si) like the -SP variant.
How does the TPS7H2211MDAPTSEP implement reverse current protection?
The TPS7H2211MDAPTSEP detects reverse current flow by monitoring the voltage differential between VOUT and VIN. When VOUT exceeds VIN by 249–390mV (depending on VIN), it activates internal circuitry to block conduction within ≤247µs. This prevents backfeed during hot-swap, battery backup transitions, or converter failures. The TPS7H2211MDAPTSEP maintains leakage below 250µA during RCP activation, ensuring minimal standby drain.
Can the TPS7H2211MDAPTSEP be used with 3.3V logic control signals?
Yes-the TPS7H2211MDAPTSEP EN pin has a guaranteed rising threshold of 0.59V minimum and falling threshold of 0.49V maximum, making it fully compatible with 3.3V, 2.5V, 1.8V, and 1.2V logic families without level shifters. Its low EN input leakage (<12nA) ensures minimal loading on driving GPIOs. The TPS7H2211MDAPTSEP also supports direct connection to FPGA banks configured for 3.3V I/O standards.
What thermal performance can be expected from the TPS7H2211MDAPTSEP in a 3.5A application?
In a 3.5A application at 12V input, the TPS7H2211MDAPTSEP dissipates approximately 0.55W (3.5A² × 44.3mΩ). With its HTSSOP package's RθJA of 23.5°C/W and proper PCB copper pour under the thermal pad, junction-to-ambient rise is ~13°C above ambient-well within the –55°C to 125°C operating range. Derating is unnecessary below 105°C ambient when 2oz copper and 4 thermal vias are used, as confirmed in TI's SLVSEW6F thermal characterization.
Is the TPS7H2211MDAPTSEP pin-compatible with other devices in the TPS7H22xx family?
No-the TPS7H2211MDAPTSEP uses a 32-pin HTSSOP package with unique pin mapping optimized for high-current routing and thermal dissipation, differing significantly from the 16-pin CFP of the TPS7H2211-SP (5962R1822001VXC) and the 20-pin HTSSOP of the TPS7H2201-SP. Pin functions such as VIN, VOUT, and NC counts are not interchangeable; board redesign is required when substituting the TPS7H2211MDAPTSEP into existing layouts.
TPS7H2211MDAPTSEP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-TSSOP (0.240", 6.10mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Electronic Fuse
- Sensing Method:
- High-Side
- Accuracy:
- -
- Voltage - Input:
- 4.5V ~ 14V
- Current - Output:
- 3.5A
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-HTSSOP
TPS7H2211MDAPTSEP FAQ
1.How can I place an order for TPS7H2211MDAPTSEP through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS7H2211MDAPTSEP 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 TPS7H2211MDAPTSEP reliable?
The price and inventory of TPS7H2211MDAPTSEP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS7H2211MDAPTSEP is usually 5 days.
3.What payment methods are accepted for TPS7H2211MDAPTSEP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS7H2211MDAPTSEP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS7H2211MDAPTSEP?
TPS7H2211MDAPTSEP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS7H2211MDAPTSEP 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 TPS7H2211MDAPTSEP?
For technical support, including TPS7H2211MDAPTSEP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS7H2211MDAPTSEP requirements.
6.How does Aetrix verify that TPS7H2211MDAPTSEP is sourced from the original manufacturer or authorized distributors?
All TPS7H2211MDAPTSEP 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 TPS7H2211MDAPTSEP meets industry standards.
7.What is the process for return or replacement of TPS7H2211MDAPTSEP?
All TPS7H2211MDAPTSEP units undergo pre-shipment inspection (PSI). If there is an issue with TPS7H2211MDAPTSEP, 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 TPS7H2211MDAPTSEP part is unused and in its original packaging.
Return procedure for TPS7H2211MDAPTSEP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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