Texas Instruments TPS2216DAPR

Overview

TPS2216DAPR from Texas Instruments is a dual-slot PC Card power-interface switch designed for serial PCMCIA controllers. It integrates xVCC and xVPP switching for two independent card slots, supports 3.3-V/5-V/12-V power distribution, features 60-mΩ typical rDS(on) for xVCC switches, includes short-circuit and thermal protection, and delivers 150-µA max quiescent current. It enables compliant power management in notebook computers and PDAs.

For engineers reviewing the TPS2216DAPR datasheet, TPS2216DAPR pinout, TPS2216DAPR application, or TPS2216DAPR equivalent, key selection criteria include dual-slot VCC/VPP programmability, break-before-make switching, 3.3-V low-voltage mode operation without 5-V bias, standby-mode 50-mA current limiting, and compliance with PC Card™ standards.

Technical Context

The TPS2216DAPR implements a serial control interface (CLOCK/DATA/LATCH) to configure independent xVPP outputs per slot while supporting TTL-compatible logic inputs. Its internal architecture combines dual high-side MOSFET arrays-each with dedicated current sensing, thermal shutdown at 155°C (10°C hysteresis), and overcurrent detection driving the open-drain OC output.

It operates in three primary modes: normal (full-current), standby (50-mA per output limit), and 3.3-V-only (enabling xVCC switching when 5-V supply is absent). The MODE pin selects between TPS2206- and TPS2216-compatible serial protocols, and RESET pins provide active-high and active-low options for system-level reset coordination.

Key Specifications

Pinout & Package

The TPS2216DAPR is housed in a 32-pin TSSOP (DAP) package with exposed thermal pad (PowerPAD™), optimized for high-power dissipation (4255 mW at TA ≤ 25°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PC Card power-switching applications.

Compared with TPS2216DBR, the TPS2216DAPR offers superior thermal performance and smaller footprint, while TPS2206DBR lacks essential low-power and programmability features needed for modern portable designs.

Availability

TPS2216DAPR is available at Aetrix Electronics and suitable for notebook computers, PDAs, and digital cameras requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing for industrial and embedded programs.

Supply support for TPS2216DAPR 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 decades of experience in power management ICs.

The TPS2216 product line was engineered specifically for PCMCIA-compliant PC Card power interfacing - delivering integrated VCC/VPP switching, fault protection, and serial configurability in a single IC for portable computing platforms.

FAQ

What is the function of the MODE pin on the TPS2216DAPR?

The MODE pin on the TPS2216DAPR selects between two serial interface protocols: when pulled high, it enables TPS2216-specific operation with full xVPP independence per slot; when floating or low, it reverts to TPS2206-compatible mode with simplified control. Internally pulled low via a 150-kΩ resistor, MODE must be externally biased high for standard TPS2216DAPR functionality.

Does the TPS2216DAPR support simultaneous 3.3-V and 5-V VCC outputs?

Yes, the TPS2216DAPR supports concurrent 3.3-V and 5-V VCC outputs - each slot's AVCC and BVCC can be independently configured to 3.3 V, 5 V, GND, or high-impedance via the serial interface. This enables mixed-voltage card configurations (e.g., 3.3-V CompactFlash™ and 5-V modem) within a single host system.

How does the TPS2216DAPR implement thermal protection?

The TPS2216DAPR incorporates an internal thermal sensor that triggers shutdown at 155°C junction temperature, holding all outputs in high-impedance state until junction temperature falls below 145°C (10°C hysteresis). This protects both the IC and connected PC Cards during sustained overload or poor heatsinking conditions.

Can the TPS2216DAPR operate without a 5-V supply?

Yes - the TPS2216DAPR supports 3.3-V low-voltage mode, allowing full xVCC switching using only the 3.3-V input (pins 16–18) when the 5-V supply (pins 1–2, 32) is absent. This feature is essential for battery-backed sleep modes in notebooks and PDAs where 5-V rails are powered down.

What is the purpose of the OC pin on the TPS2216DAPR?

The OC (Overcurrent) pin on the TPS2216DAPR is an open-drain output that asserts low during overcurrent or overtemperature events. It provides immediate hardware-level fault signaling to the host controller, enabling rapid diagnostics, card isolation, and graceful error recovery - eliminating reliance on software polling or external sense resistors.