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Texas Instruments TPS2223ADBR
- Part No.:
- TPS2223ADBR
- Manufacturer:
- Texas Instruments
- Package:
- 24-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
TPS2223ADBR.pdf
- Description:
- IC PWR SWITCH 3:4 24SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,800
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Product details
Overview
TPS2223ADBR from Texas Instruments is a dual-slot CardBus™ power-interface switch IC designed for controlled 3.3 V and 5 V distribution to two PC Card sockets. It integrates dual VCC/VPP switching, fast current-limit response (≤10 µs), thermal shutdown (135°C), and power-on reset. It supports TTL-compatible serial control (CLOCK/DATA/LATCH) and delivers up to 750 mA per 3.3 V/5 V VCC output with rDS(on) ≤140 mΩ at TJ = 100°C - used in notebook computers and CableCARD™ host systems.
For engineers reviewing the TPS2223ADBR datasheet, TPS2223ADBR pinout, TPS2223ADBR application, or TPS2223ADBR equivalent, this page provides verified technical context, validated pin functions, confirmed dual-socket power management specs, and real-world alternative selection guidance for PCMCIA-compliant embedded designs.
Technical Context
The TPS2223ADBR implements two independent high-side power switches per slot - one for VCC (3.3 V/5 V) and one for VPP (3.3 V/5 V only; no 12 V support) - with integrated current sensing, thermal limiting, and open-drain OC fault reporting. Its serial interface uses edge-triggered CLOCK and pulldown LATCH to configure AVCC/BVCC and AVPP/BVPP outputs via 11-bit command words.
It features UVLO on all input rails (3.3 V threshold: 2.4–2.9 V; 5 V threshold: 2.3–2.8 V), internal discharge paths (0.5–0.7 kΩ at VCC; 0.2–0.4 kΩ at VPP), and break-before-make switching to prevent cross-conduction. The device operates from –40°C to 85°C ambient and meets PC Card Standard voltage regulation and timing requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Support | 3.3 V and 5 V only - no 12 V VPP switching (confirmed for TPS2223A family; pins 7 & 20 are NC) |
| Max Output Current | 750 mA per VCC channel at TJ = 100°C; 100 mA per VPP channel at TJ = 100°C |
| rDS(on) (VCC) | 110–140 mΩ (5 V → xVCC); enables <250 mV drop at 750 mA - compliant with PC Card ±5% VO(reg) |
| Current-Limit Response | ≤10 µs (5 V to xVCC short); ensures rapid fault isolation without system-level brownout |
| Logic Interface | TTL-compatible serial control: 2.5 MHz max CLOCK frequency; 100 ns setup/hold; asynchronous SHDN/RESET |
| Thermal Protection | 135°C trip point with 10°C hysteresis - prevents latch-up during sustained overload in compact slots |
| Quiescent Current | 140 µA typical from 3.3 V supply - enables low-power standby in battery-operated hosts |
Pinout & Package
TPS2223ADBR is housed in a 24-pin HTSSOP (DB) package with exposed thermal pad. Pin assignments are validated per TI SLVS428E datasheet Figure 1 (top view) and Terminal Functions table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 24 | 5V Input | Primary 5-V supply input for both slots; must be decoupled locally |
| 8 | AVPP Output | Switched 3.3 V/5 V VPP output for Slot A - no 12 V capability |
| 9, 10 | AVCC Output | Switched 3.3 V/5 V VCC output for Slot A - supports up to 750 mA |
| 11 | GND | Power ground reference for all internal circuits and switch return paths |
| 12 | RESET Input | Asynchronous active-low reset; internal pullup - forces Hi-Z on all outputs |
| 13, 14 | 3.3V Input | 3.3-V supply for logic and bias; required for all operations (VI(3.3V) min = 2.4 V) |
| 15 | OC Output | Open-drain overcurrent flag; requires external pullup - asserts low on any channel fault |
| 17, 18 | BVCC Output | Switched 3.3 V/5 V VCC output for Slot B - independent control from AVCC |
| 19 | BVPP Output | Switched 3.3 V/5 V VPP output for Slot B - no 12 V support |
| 21 | SHDN Input | Asynchronous active-low shutdown; internal pullup - disables all switches and reduces IQ to 0.3 µA |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent slot control | Separate AVCC/AVPP and BVCC/BVPP outputs enable concurrent but distinct power sequencing per PC Card socket |
| Break-before-make switching | Prevents momentary short between VCC and VPP rails during state transitions - eliminates risk of card damage |
| Integrated discharge paths | 0.5–0.7 kΩ discharge resistance on VCC outputs ensures safe voltage ramp-down when disabled |
| UVLO with hysteresis | 3.3 V UVLO (2.4–2.9 V) and 5 V UVLO (2.3–2.8 V) with 100 mV hysteresis prevent erratic switching near rail thresholds |
| Serial interface with latch sync | LATCH signal synchronizes 11-bit command word to CLOCK edges - ensures deterministic register updates under noise |
Applications
| Notebook PC CardBus Host | CableCARD™ Set-Top Box |
|---|---|
|
Use Scenario: Dual PC Card socket in ultraportable laptop supporting modem + wireless LAN cards simultaneously. IC Role / Device Role / Timing Role: Primary power manager controlling VCC/VPP delivery, current limiting, and fault reporting for both slots via serial interface. Use Value: Eliminates discrete fuses and external sense resistors; meets PC Card ±5% regulation with ≤140 mΩ rDS(on) at full load. |
Use Scenario: CableCARD™ host in consumer set-top box requiring hot-plug-safe 3.3 V/5 V power to conditional-access module. IC Role / Device Role / Timing Role: Dual-channel power switch with power-on reset and UVLO - ensures clean power-up sequence and brownout immunity. Use Value: 10 µs current-limit response isolates faults before system reset; OC pin drives host microcontroller interrupt for diagnostics. |
| Digital Camera PCMCIA Adapter | Industrial PDA Expansion Slot |
|
Use Scenario: High-resolution digital camera with PCMCIA slot for CF-to-PCMCIA adapter supporting flash memory and GPS modules. IC Role / Device Role / Timing Role: Dual-slot power controller enabling independent enable/disable of VCC/VPP per card type (memory vs. peripheral). Use Value: Independent VPP/VCC switching allows 3.3 V memory cards and 5 V GPS cards to coexist without level-shifting hardware. |
Use Scenario: Ruggedized industrial PDA with dual PCMCIA expansion for barcode scanner + RFID reader modules. IC Role / Device Role / Timing Role: Hot-swap power manager with thermal shutdown (135°C) and 85°C ambient rating - sustains operation in unventilated enclosures. Use Value: 140 µA quiescent current extends battery life during idle; SHDN pin enables firmware-controlled power gating per slot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-slot PC Card power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2224ADBR | Supports 12 V VPP switching (pins 7 & 20 active); otherwise identical pinout, timing, and control interface | Required where legacy 12 V PC Cards (e.g., older flash programming modules) must be supported | Select TPS2224ADBR only if 12 V VPP capability is needed; TPS2223ADBR reduces BOM cost and layout complexity when 12 V is unused |
| TPS2226APWP | 30-pin SSOP package; adds third VCC output (pin 11) and extra BVCC pin (pin 22); same electrical specs | Suitable for three-slot or enhanced dual-slot designs requiring redundant VCC paths or higher current headroom | Choose TPS2226APWP for future-proofing or multi-card systems; TPS2223ADBR fits space-constrained 24-pin layouts with no overhead |
Compared with TPS2224ADBR and TPS2226APWP, the TPS2223ADBR offers optimal cost and footprint for modern dual-slot hosts that exclusively use 3.3 V/5 V PC Cards - eliminating unused 12 V circuitry and minimizing PCB area without sacrificing current capability or protection features.
Availability
TPS2223ADBR is available at Aetrix Electronics and suitable for notebook computers, CableCARD™ host systems, and industrial PDAs requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS2223ADBR 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.
The TPS222x family was engineered specifically for CardBus™-compliant PCMCIA host controllers - integrating dual-slot power switching, fault reporting, and serial configuration to replace discrete MOSFETs, sense resistors, and protection ICs.
FAQ
What is the maximum supported load current per channel on the TPS2223ADBR?
The TPS2223ADBR supports up to 750 mA per VCC output (AVCC/BVCC) at TJ = 100°C and up to 100 mA per VPP output (AVPP/BVPP) at TJ = 100°C. These values are specified in the Electrical Characteristics table under IO(xVCC) and IO(xVPP) conditions. Exceeding these limits triggers the current-limit circuit within ≤10 µs, protecting both the TPS2223ADBR and connected PC Cards.
Does the TPS2223ADBR support 12 V VPP switching?
No, the TPS2223ADBR does not support 12 V VPP switching. Pins 7 and 20 are explicitly marked "NC" (no internal connection) for the TPS2223A variant, and the datasheet confirms 12 V functionality is excluded. The TPS2223ADBR delivers only 3.3 V or 5 V to AVPP and BVPP outputs - making it ideal for modern PC Cards that operate solely at those voltages.
How does the serial interface of the TPS2223ADBR work?
The TPS2223ADBR uses a 3-wire TTL-compatible serial interface: CLOCK (pin 4), DATA (pin 3), and LATCH (pin 5). An 11-bit command word is clocked in on rising CLOCK edges, then latched on the rising edge of LATCH to update internal registers. This enables precise, noise-immune control of each output's state, current limit, and discharge behavior without requiring parallel address/data buses.
What protection features are built into the TPS2223ADBR?
The TPS2223ADBR integrates short-circuit protection (with ≤10 µs response), thermal shutdown (135°C trip, 10°C hysteresis), UVLO on all input rails (3.3 V and 5 V), and open-drain OC fault reporting. It also includes internal discharge paths (0.5–0.7 kΩ on VCC; 0.2–0.4 kΩ on VPP) and break-before-make switching - collectively eliminating the need for external fuses, thermistors, or discharge MOSFETs in compliant designs.
What is the operating temperature range for the TPS2223ADBR?
The TPS2223ADBR is rated for an operating ambient temperature range of –40°C to +85°C, with a virtual junction temperature limit of –40°C to +100°C. This range is validated across all electrical specifications including rDS(on), current limit, and propagation delays - ensuring reliable dual-slot power control in portable and industrial environments without derating.
TPS2223ADBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 24-SSOP (0.209", 5.30mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- PCMCIA Switch
- Number of Outputs:
- 4
- Ratio - Input:Output:
- 3:4
- Output Configuration:
- High Side
- Output Type:
- -
- Interface:
- Serial
- Voltage - Load:
- 3.3V, 5V
- 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-SSOP
TPS2223ADBR FAQ
1.How can I place an order for TPS2223ADBR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2223ADBR 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 TPS2223ADBR reliable?
The price and inventory of TPS2223ADBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2223ADBR is usually 5 days.
3.What payment methods are accepted for TPS2223ADBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2223ADBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2223ADBR?
TPS2223ADBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2223ADBR 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 TPS2223ADBR?
For technical support, including TPS2223ADBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2223ADBR requirements.
6.How does Aetrix verify that TPS2223ADBR is sourced from the original manufacturer or authorized distributors?
All TPS2223ADBR 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 TPS2223ADBR meets industry standards.
7.What is the process for return or replacement of TPS2223ADBR?
All TPS2223ADBR units undergo pre-shipment inspection (PSI). If there is an issue with TPS2223ADBR, 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 TPS2223ADBR part is unused and in its original packaging.
Return procedure for TPS2223ADBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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