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Texas Instruments TPS2220APWPRG4
- Part No.:
- TPS2220APWPRG4
- Manufacturer:
- Texas Instruments
- Package:
- 24-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS2220APWPRG4.pdf
- Description:
- IC PWR SWITCH 1:1 24HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,709
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Product details
Overview
TPS2220APWPRG4 from Texas Instruments is a single-slot CardBus™ power-interface switch IC designed for controlled 3.3 V, 5 V, and 12 V distribution to PC Card sockets. It integrates dual-channel VCC/VPP switching, break-before-make logic, thermal shutdown (135°C), current-limit protection (1 A xVCC / 100 mA xVPP), and 140-µA typical quiescent current from 3.3-V input. It serves in notebook computers and digital cameras requiring compliant PC Card power management.
For engineers reviewing the TPS2220APWPRG4 datasheet, TPS2220APWPRG4 pinout, TPS2220APWPRG4 application, or TPS2220APWPRG4 equivalent, key selection criteria include its 24-pin HTSSOP (PWP) package, independent VPP/VCC control, UVLO thresholds (2.4 V on 3.3V pin, 2.3 V on 5V pin), and fast 10 µs current-limit response on 5V-to-xVCC paths.
Technical Context
The TPS2220APWPRG4 implements a serial interface (CLOCK/DATA/LATCH) with TTL-compatible logic inputs and open-drain OC fault reporting. Its internal architecture includes dedicated UVLO and POR circuits that assert RESET internally below 1.7 V and force all switches to high-impedance state during undervoltage conditions.
It features dual-output discharge resistors (0.5–0.7 kΩ at xVCC, 0.2–0.4 kΩ at xVPP) and supports independent enable/disable of 5V and 12V supplies via SHDN and serial commands. The device operates across –40°C to 85°C ambient temperature and meets current PC Card™ standards for voltage regulation, timing, and fault response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range (3.3V) | 3 V to 3.6 V - required for all circuit operation; powers internal logic and enables switching |
| rDS(on) (3.3V → xVCC) | 85–110 mΩ at TJ = 25°C - ensures ≤85 mV drop at 750 mA load, meeting PC Card 5% regulation |
| rDS(on) (5V → xVPP) | 0.8–1 Ω at TJ = 25°C - supports 50 mA programming current with <0.5 V drop |
| Current Limit (xVCC) | 1 A steady-state - protects against short-circuit faults without external fuses |
| Current Limit Response Time | 10 µs on 5V-to-xVCC path - isolates faults before thermal damage occurs |
| Quiescent Current | 140 µA typical from 3.3-V input - minimizes standby power in battery-operated systems |
| Operating Temperature | –40°C to +85°C ambient - validated for industrial and portable computing environments |
Pinout & Package
TPS2220APWPRG4 is housed in a 24-pin HTSSOP package (PWP), thermally enhanced with exposed thermal pad. Pin assignments are defined for single-slot operation: AVCC/AVPP outputs serve one card socket; BVCC/BVPP pins are NC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 (5V) | Power Input | 5-V supply input for card power and internal circuitry; must be present for 5V output operation |
| 7, 20 (12V) | Power Input | 12-V input for xVPP switching; both pins require external connection per TI note C |
| 8 (AVPP) | Output | Switched 3.3/5/12-V output to card; 12 V enabled only when 12V pins are powered |
| 9, 10 (AVCC) | Output | Switched 3.3/5-V output to card; supports up to 750 mA per channel |
| 11 (GND) | Ground | Primary ground reference for power and logic sections; connects to thermal pad |
| 12 (RESET) | Input | Asynchronous active-low reset; internal pullup; forces Hi-Z on all switches when asserted |
| 13 (3.3V) | Power Input | 3.3-V input powering internal logic and enabling all functions; mandatory for operation |
| 15 (OC) | Output | Open-drain overcurrent flag; requires external pullup; sinks 10 mA max during fault |
| 21 (SHDN) | Input | Asynchronous active-low shutdown; internal pullup; disables all outputs and reduces IQ to 0.3 µA |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Prevents cross-conduction during voltage transitions, eliminating bus contention in multi-voltage PC Card slots |
| Independent VPP/VCC control | Enables selective activation of programming (VPP) and operating (VCC) voltages-critical for flash memory erase/write sequences |
| UVLO with hysteresis (100 mV) | Ensures clean power-up sequencing and prevents erratic switching near supply thresholds |
| Thermal shutdown (135°C) | Protects against sustained overload or poor heatsinking; 10°C hysteresis prevents oscillation |
| Serial interface (3-wire) | Reduces PCB routing complexity vs parallel control; supports daisy-chaining in multi-socket designs |
Applications
| Notebook Computers | Digital Cameras |
|---|---|
Use Scenario: Powering PC Card expansion slots for Wi-Fi or GPS modules in ultra-thin laptops. IC Role / Device Role / Timing Role: Single-slot CardBus power switch managing 3.3 V/5 V/12 V delivery with UVLO-locked sequencing. Use Value: Eliminates discrete FETs and sense resistors while meeting PCMCIA 5% output regulation and 10 µs fault response. |
Use Scenario: Enabling CompactFlash™ storage cards with legacy 12 V VPP programming support. IC Role / Device Role / Timing Role: Controlled VPP ramp generation and VCC switching synchronized via LATCH/CLOCK signals. Use Value: Provides 12 V VPP only when needed-reducing system power draw and avoiding accidental flash corruption. |
| Bar Code Scanners | Set-Top Boxes |
Use Scenario: Hot-plug power management for PCMCIA-based wireless data capture modules. IC Role / Device Role / Timing Role: Fault-isolating switch with OC reporting to host controller during cable disconnect events. Use Value: Enables automatic recovery after transient overloads without host firmware intervention. |
Use Scenario: Supporting legacy PC Card tuner modules in embedded media gateways. IC Role / Device Role / Timing Role: Dual-rail power controller delivering regulated 3.3 V and 5 V to tuner and demod ICs. Use Value: Integrates discharge paths (0.5 kΩ xVCC) to meet PC Card hot-remove timing requirements (<10 ms fall time). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CardBus power-switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2223APWPR | Dual-slot variant with BVCC/BVPP outputs; no 12 V on AVPP (pin 7/20 NC); same PWP package | Required for two-socket hosts; lacks 12 V on primary slot but adds second slot capability | Select when designing dual-PCMCIA-host systems where 12 V is not needed on Slot A |
| TPS2224APWPR | Dual-slot with full 12 V support on both AVPP and BVPP; identical pinout and electrical specs to TPS2220APWPRG4 except for added BVxx pins | Supports two independent 12 V–capable slots; requires additional PCB routing for BVPP/BVCC | Choose for dual-slot notebooks needing full 12 V VPP on both slots, with shared 3.3 V/5 V inputs |
Compared with TPS2223APWPR and TPS2224APWPR, the TPS2220APWPRG4 offers lowest BOM count and layout simplicity for single-slot implementations, avoids unused BVxx pins and associated routing, and maintains identical thermal performance and fault response in its targeted use case.
Availability
TPS2220APWPRG4 is available at Aetrix Electronics and suitable for notebook computers, digital cameras, bar code scanners, and set-top boxes requiring stable component supply and long-term industrial availability.
Supply support for TPS2220APWPRG4 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 connectivity technologies with over 50 years of innovation in power management ICs.
The TPS222x family was engineered specifically for PC Card and CardBus host controllers, delivering integrated, standards-compliant power switching with minimal external components and robust fault handling.
FAQ
What is the function of the OC pin on the TPS2220APWPRG4?
The OC (Overcurrent) pin on the TPS2220APWPRG4 is an open-drain output that pulls low when any xVCC or xVPP output exceeds its current limit threshold. It requires an external pullup resistor and sinks up to 10 mA during fault conditions. This signal allows the host controller to detect and respond to overloads without polling, enabling rapid system-level fault isolation in applications like notebook computers using the TPS2220APWPRG4.
Does the TPS2220APWPRG4 support 12 V on both AVPP and BVPP outputs?
No. The TPS2220APWPRG4 is a single-slot device with AVPP (pin 8) and AVCC (pins 9,10) outputs only; BVPP and BVCC pins are marked NC in its pin table. Only the dual-slot variants TPS2224A and TPS2226A provide functional BVPP/BVCC outputs with full 12 V support. The TPS2220APWPRG4 uses pins 7 and 20 as 12 V inputs to enable AVPP 12 V output, consistent with its single-socket role.
How does the UVLO circuit behave on the 3.3V and 5V inputs of the TPS2220APWPRG4?
The TPS2220APWPRG4 features separate UVLO comparators: the 3.3V pin has a 2.4–2.9 V threshold with 100 mV hysteresis, disabling all switches if voltage falls below 2.4 V; the 5V pin has a 2.3–2.8 V threshold, disabling only 5V-related outputs (xVCC/xVPP sourced from 5V) while preserving 3.3V functionality. This staged shutdown ensures graceful degradation-critical in systems where 3.3 V may remain stable while 5 V sags, such as in the TPS2220APWPRG4's target applications.
Can the TPS2220APWPRG4 be used without connecting the 12V pins?
Yes. The TPS2220APWPRG4 operates fully with only 3.3 V and 5 V applied: 3.3V (pin 13) is mandatory for logic and bias; 5V (pins 1,2) enables 5 V xVCC/xVPP outputs. Pins 7 and 20 (12V) are optional-if unconnected, AVPP defaults to 3.3 V or 5 V only. This flexibility allows the same TPS2220APWPRG4 design to support both 12 V–capable and 12 V–optional PC Card slots without hardware change.
What is the purpose of the SHDN and RESET pins on the TPS2220APWPRG4?
SHDN (pin 21) is an asynchronous active-low shutdown input that disables all outputs and reduces quiescent current to ≤2 µA; it has an internal pullup. RESET (pin 12) is also asynchronous active-low and forces all switches to high-impedance while closing discharge paths-used for hard reset during initialization or fault recovery. Both pins have internal biasing, eliminating need for external resistors in most TPS2220APWPRG4 implementations.
TPS2220APWPRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 24-PowerTSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Type:
- PCMCIA Switch
- Number of Outputs:
- 2
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- -
- Interface:
- Serial
- Voltage - Load:
- 3.3V, 5V, 12V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 1A
- Rds On (Typ):
- 95mOhm
- Input Type:
- -
- Features:
- Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-HTSSOP
TPS2220APWPRG4 FAQ
1.How can I place an order for TPS2220APWPRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2220APWPRG4 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 TPS2220APWPRG4 reliable?
The price and inventory of TPS2220APWPRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2220APWPRG4 is usually 5 days.
3.What payment methods are accepted for TPS2220APWPRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2220APWPRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2220APWPRG4?
TPS2220APWPRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2220APWPRG4 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 TPS2220APWPRG4?
For technical support, including TPS2220APWPRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2220APWPRG4 requirements.
6.How does Aetrix verify that TPS2220APWPRG4 is sourced from the original manufacturer or authorized distributors?
All TPS2220APWPRG4 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 TPS2220APWPRG4 meets industry standards.
7.What is the process for return or replacement of TPS2220APWPRG4?
All TPS2220APWPRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS2220APWPRG4, 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 TPS2220APWPRG4 part is unused and in its original packaging.
Return procedure for TPS2220APWPRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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