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Texas Instruments TPS2113PW
- Part No.:
- TPS2113PW
- Manufacturer:
- Texas Instruments
- Category:
- OR Controllers, Ideal Diodes
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS2113PW.pdf
- Description:
- IC OR CTRLR SRC SELECT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:340
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Product details
Overview
TPS2113PW from Texas Instruments is a two-input, one-output auto-switching power multiplexer IC with dual high-side N-channel MOSFET switches, 84 mΩ typical rDS(on), adjustable current limit (0.63–1.25 A), reverse/cross-conduction blocking, and thermal shutdown - designed for seamless battery/wall-adapter switchover in portable 2.8–5.5 V systems.
For engineers reviewing the TPS2113PW datasheet, TPS2113PW pinout, TPS2113PW application, or TPS2113PW equivalent, this page delivers verified technical context, real-world timing behavior (40–60 µs IN1→IN2 transition), package-validated thermal derating (386.84 mW at 25°C), and precise alternative-part comparisons for dual-supply power-path design.
Technical Context
The TPS2113PW implements an auto-switching SPDT power path using two independent high-side N-MOSFETs controlled by internal logic that monitors VSNS voltage (0.755–0.82 V threshold) and input voltage differentials (IN2 vs IN1 hysteresis: 0.1–0.2 V). It features integrated charge pump for gate drive above supply rails and cross-conduction blocking via gate-source voltage monitoring.
Its output slew-rate control operates in two modes: slow ramp (0.5–3 ms rise/fall) during Hi-Z-to-active transitions to limit inrush, and fast ramp (40–60 µs) during active-to-active switchover to minimize droop. Current limiting is set externally via RILIM (500/RILIM A), with ±20% accuracy over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8 V to 5.5 V per input - supports Li-ion battery (3.0–4.2 V) and 5 V adapter simultaneously without level-shifting |
| rDS(on) (Typ) | 84 mΩ at 5.0 V, 500 mA - enables ≤42 mV conduction drop at 0.5 A, minimizing heat in compact layouts |
| Current Limit Range | 0.63–1.25 A - programmable via single resistor to match load requirements and PCB trace ampacity |
| Quiescent Current | 0.5 µA typical (standby) - extends battery life in always-on backup power paths |
| Transition Time | 40–60 µs (IN1→IN2) - ensures <100 mV output droop with ≤10 µF hold-up capacitance |
| Thermal Shutdown | 135°C threshold with 10°C hysteresis - protects against sustained overload in enclosed enclosures |
| Package | TSSOP-8 (PW), 3.1 × 4.5 mm - surface-mount compatible with standard reflow profiles (MSL Level-1) |
Pinout & Package
TSSOP-8 (PW) package: 3.1 mm × 4.5 mm body, 0.65 mm pitch, 1.2 mm max height, lead-free NiPdAu finish, JEDEC MO-153 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| STAT (Pin 1) | Open-drain status output | Drives low when IN1 is active or OUT is Hi-Z; Hi-Z when IN2 is active - enables simple supply-selection indication without pull-up |
| EN (Pin 2) | Enable/disable control input | CMOS/TTL-compatible; internal 1 µA pull-up allows default-enable operation with no external bias |
| VSNS (Pin 3) | Voltage sense select input | Determines primary/secondary selection mode: >0.8 V selects IN1; ≤0.8 V enables auto-select based on IN2 vs IN1 comparison |
| ILIM (Pin 4) | Current limit programming input | Connects to GND via RILIM; sets limit to 500/RILIM A - enables precise overcurrent protection matching load profile |
| IN1 (Pin 8) | Primary power input | High-priority source (e.g., wall adapter); enabled only if ≥2.8 V and internal VDD UVLO satisfied |
| OUT (Pin 7) | Power output | Delivers up to 1.5 A continuous; includes slew-rate control and reverse-conduction blocking to prevent backfeed |
| IN2 (Pin 6) | Secondary power input | Backup source (e.g., battery); activated automatically when IN1 drops below threshold or fails |
| GND (Pin 5) | Power ground reference | Common return for all internal circuitry; must be low-impedance connection to minimize noise coupling into VSNS/ILIM |
Key Features
| Feature | Design Value |
|---|---|
| Auto-switching mode with VSNS control | Enables priority-based switchover (e.g., adapter-first) or automatic higher-voltage selection without MCU intervention |
| Reverse-conduction blocking | Prevents backfeed from load capacitor into inactive supply by requiring ∆V ≤ 100 mV before switch closure |
| Controlled output voltage transition | Reduces inrush current by limiting dV/dt during power-up, lowering required hold-up capacitance by up to 5× |
| Thermal shutdown with hysteresis | Shuts down at 135°C and recovers at 125°C - avoids thermal cycling in marginally cooled designs |
| Adjustable current limit | Single-resistor programming (0.63–1.25 A range) allows optimization for specific load fault conditions and PCB layout |
Applications
| Portable Medical Monitor | Dual-Input Industrial HMI |
|---|---|
Use Scenario: Battery-powered patient monitor with AC adapter backup, requiring uninterrupted operation during hot-swap of power sources. IC Role / Device Role / Timing Role: Power mux controller managing seamless transition between Li-ion battery (3.3 V) and 5 V wall adapter while maintaining 3.3 V rail stability. Use Value: 40–60 µs switchover time limits output droop to <50 mV, eliminating need for oversized hold-up capacitors and reducing BOM cost. | Use Scenario: Factory-floor human-machine interface with redundant 24 V DC inputs (main PSU + UPS), where supply failure must not interrupt display or touch controller. IC Role / Device Role / Timing Role: Dual-input power selector enforcing priority order and blocking reverse current from 24 V bus into failed supply. Use Value: Reverse-conduction blocking prevents damage to upstream DC-DC converters during input short-circuit events. |
| USB-C Powered Docking Station | Automotive Infotainment Accessory |
Use Scenario: Laptop docking station accepting both USB-C PD (5–20 V) and proprietary 12 V barrel jack, requiring automatic selection and safe switchover. IC Role / Device Role / Timing Role: Input supervisor and power path manager ensuring correct voltage domain translation and preventing cross-conduction during adapter insertion/removal. Use Value: Cross-conduction blocking guarantees neither input is shorted during transient switchover, meeting IEC 62368-1 isolation requirements. | Use Scenario: Aftermarket infotainment add-on powered from vehicle's 12 V battery and optional auxiliary 5 V USB port, needing fail-safe fallback without reset. IC Role / Device Role / Timing Role: High-reliability power multiplexer with thermal shutdown and UVLO protection for automotive ambient temperature extremes (−40°C to 85°C). Use Value: 135°C thermal shutdown with 10°C hysteresis prevents latch-up during prolonged high-load operation in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2113PWR | Identical electrical specs and pinout; supplied in tape-and-reel (2000 pcs) instead of tube (150 pcs) | No functional difference; selected for automated SMT assembly lines requiring reel-fed placement | Choose TPS2113PWR for volume production; TPS2113PW for prototyping or low-volume builds |
| TPS2112PW | Same TSSOP-8 package and feature set, but lower current limit (0.31–0.75 A) and higher rDS(on) (120 mΩ typ) | Suitable for sub-1 A loads (e.g., Bluetooth modules, sensors); not interchangeable for 1.25 A peak loads | Use TPS2112PW only when load current and thermal budget allow higher conduction loss |
Compared with TPS2113PW, TPS2113PWR offers identical performance in reel format for manufacturing scalability, while TPS2112PW provides a cost-optimized variant for lower-current applications - neither is pin-compatible with non-TI alternatives due to proprietary VSNS control architecture.
Availability
TPS2113PW is available at Aetrix Electronics and suitable for portable medical monitors, industrial HMIs, USB-C docking stations, and automotive infotainment accessories requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TPS2113PW 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 company specializing in analog and embedded processing technologies, with leadership in power management ICs for industrial, automotive, and consumer markets.
The TPS211x product line was engineered specifically for robust, low-dropout power multiplexing in dual-supply portable electronics - emphasizing seamless switchover, reverse-current prevention, and minimal external component count.
FAQ
What is the maximum continuous output current supported by the TPS2113PW?
The TPS2113PW supports a maximum continuous output current of 1.5 A, as specified in its absolute maximum ratings. This rating assumes proper PCB thermal design - including adequate copper pour and airflow - and operation within the recommended junction temperature range (−40°C to 125°C). At 25°C ambient with standard 2-layer board layout, derated power dissipation limits practical continuous current to ~1.25 A.
How does the VSNS pin determine power source selection in the TPS2113PW?
The VSNS pin on the TPS2113PW sets the selection mode: when VSNS > 0.8 V (with 30–60 mV hysteresis), the device connects IN1 to OUT; when VSNS ≤ 0.8 V, it automatically selects the higher of IN1 or IN2. This allows flexible configuration - e.g., hardwiring VSNS to 3.3 V for adapter-first priority, or connecting it to a comparator output for dynamic threshold control.
Can the TPS2113PW be used with input voltages below 2.8 V?
The TPS2113PW can accept one input as low as 1.5 V, provided the other input remains ≥2.8 V to satisfy the internal VDD UVLO (2.53 V rising edge). However, the 1.5 V input will not power the output unless it becomes the higher-voltage source after the other supply drops out - and even then, rDS(on) increases significantly below 2.8 V, raising conduction loss.
What is the purpose of the STAT pin on the TPS2113PW, and how should it be interfaced?
STAT is an open-drain output on the TPS2113PW that pulls low when IN1 is active or OUT is Hi-Z, and remains Hi-Z when IN2 is active. It requires an external pull-up resistor (typically 10 kΩ to 3.3 V or 5 V) to generate a logic-level signal for host MCU monitoring. This enables firmware to detect which supply is currently powering the system without additional sensing circuitry.
Does the TPS2113PW include built-in ESD protection, and what level is rated?
Yes, the TPS2113PW includes built-in ESD protection rated per JEDEC standards: 2 kV Human Body Model (HBM) and 500 V Charged Device Model (CDM). While sufficient for typical handling, TI recommends using conductive foam or shorting leads during storage and PCB assembly to prevent electrostatic damage to the sensitive MOS gate structures - especially given the device's low-threshold control inputs.
TPS2113PW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Source Selector Switch
- FET Type:
- N-Channel
- Ratio - Input:Output:
- 2:1
- Internal Switch(s):
- Yes
- Delay Time - ON:
- 1 ms
- Delay Time - OFF:
- 5 ms
- Current - Output (Max):
- 1.25A
- Current - Supply:
- 55 µA
- Voltage - Supply:
- 2.8V ~ 5.5V
- Applications:
- Handheld/Mobile Devices
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
TPS2113PW FAQ
1.How can I place an order for TPS2113PW through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2113PW 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 TPS2113PW reliable?
The price and inventory of TPS2113PW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2113PW is usually 5 days.
3.What payment methods are accepted for TPS2113PW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2113PW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2113PW?
TPS2113PW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2113PW 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 TPS2113PW?
For technical support, including TPS2113PW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2113PW requirements.
6.How does Aetrix verify that TPS2113PW is sourced from the original manufacturer or authorized distributors?
All TPS2113PW 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 TPS2113PW meets industry standards.
7.What is the process for return or replacement of TPS2113PW?
All TPS2113PW units undergo pre-shipment inspection (PSI). If there is an issue with TPS2113PW, 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 TPS2113PW part is unused and in its original packaging.
Return procedure for TPS2113PW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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