Texas Instruments TPS2514AQDBVRQ1

Overview

TPS2514AQDBVRQ1 from Texas Instruments is a single-channel automotive-grade USB Dedicated Charging Port (DCP) controller that implements BC1.2-compliant auto-detection and electrical signature generation on D+ and D− lines. It supports Divider 3 (2.7 V / 2.7 V), BC1.2 Shorted Mode (D+/D− short ≤200 Ω), and 1.2 V / 1.2 V charging schemes, operates from 4.5 V to 5.5 V, and is qualified per AEC-Q100 Grade 1 (–40°C to +125°C). It enables fast-charging capability in vehicle-mounted USB power adapters.

For engineers reviewing the TPS2514AQDBVRQ1 datasheet, TPS2514AQDBVRQ1 pinout, TPS2514AQDBVRQ1 application, or TPS2514AQDBVRQ1 equivalent, key selection considerations include its single-port DCP control function, SOT-23-6 package footprint, UVLO threshold of 4.1 V (100 mV hysteresis), ±10 mA data-line drive capability, and compatibility with TPS2557-Q1 for overcurrent-protected automotive USB charging solutions.

Technical Context

The TPS2514AQDBVRQ1 integrates an auto-detect state machine that monitors D+ and D− line voltages to identify connected device charging protocols and automatically configure output signatures. Its internal drivers deliver precise 2.7 V (±0.13 V) or 1.2 V (±0.08 V) levels on DP1/DM1 pins, with output impedance of 30 kΩ (Divider mode) or 102 kΩ (1.2 V mode) at –5 µA sink current.

It features undervoltage lockout (UVLO) disabling all outputs until VIN reaches 4.1 V, with 100 mV hysteresis to prevent oscillation during input transients. The device draws only 220 µA typical supply current and supports AEC-Q100 H2/C5 ESD robustness (±2000 V HBM, ±750 V CDM), making it suitable for harsh automotive environments without external protection circuitry.

Key Specifications

Pinout & Package

SOT-23-6 (DBV) package, 2.90 mm × 1.60 mm body size, PowerPad not present. Pin 1 = DP1, Pin 2 = GND, Pin 3 = N/C, Pin 4 = N/C, Pin 5 = IN, Pin 6 = DM1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB dedicated charging port controller applications.

Compared with TPS2514AQDBVRQ1, the TPS2513AQDBVRQ1 adds a second DCP channel but increases pin count and layout complexity, while the NCP380LSN3T2G reduces feature set and interoperability - making TPS2514AQDBVRQ1 the optimal balance of protocol coverage, footprint, and automotive qualification for single-port designs.

Availability

TPS2514AQDBVRQ1 is available at Aetrix Electronics and suitable for automotive in-car chargers, industrial docking stations, and medical equipment USB ports requiring stable component supply, AEC-Q100 compliance, and BC1.2 protocol support.

Supply support for TPS2514AQDBVRQ1 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 delivering analog and embedded processing solutions, with leadership in automotive, industrial, and power management technologies.

The TPS251x-Q1 product line delivers AEC-Q100-qualified USB DCP controllers designed specifically for automotive USB charging infrastructure, enabling interoperable fast charging without host processor involvement.

FAQ

What charging protocols does the TPS2514AQDBVRQ1 support?

The TPS2514AQDBVRQ1 supports three USB charging protocols: BC1.2 Divider 3 mode (2.7 V on both D+ and D−), BC1.2 Shorted Mode (D+/D− shorted with ≤200 Ω series resistance), and 1.2 V / 1.2 V mode. It does not support CDP or SDP enumeration. All modes are implemented autonomously via internal auto-detect logic without firmware or external configuration - a core functional attribute of the TPS2514AQDBVRQ1.

Can TPS2514AQDBVRQ1 be used without an external USB power switch?

Yes, the TPS2514AQDBVRQ1 can operate standalone as a DCP signaling controller, but it does not provide overcurrent protection or VBUS switching. For automotive applications, TI recommends pairing the TPS2514AQDBVRQ1 with TPS2557-Q1 to deliver current-limited 5 V power. The TPS2514AQDBVRQ1 itself only conditions D+/D− lines - it must be used with an external power path controller to meet functional safety and short-circuit requirements in vehicle systems.

What is the purpose of the N/C pins on TPS2514AQDBVRQ1?

Pins 3 and 4 of the TPS2514AQDBVRQ1 are designated No-Connect (N/C) and correspond to unused die bond pads. They may be left floating or tied to GND per PCB layout best practices to minimize noise coupling. These pins have no internal connection and do not affect TPS2514AQDBVRQ1 functionality - their presence is a result of shared die architecture with the dual-channel TPS2513AQDBVRQ1.

Does TPS2514AQDBVRQ1 require external resistors or capacitors for basic operation?

The TPS2514AQDBVRQ1 requires only one external component for guaranteed operation: a ≥0.1 µF ceramic capacitor between IN and GND, placed as close as possible to the device. No external resistors, pull-ups, or timing components are needed - all DCP detection and output configuration is handled internally. This minimal BOM requirement is a defining characteristic of the TPS2514AQDBVRQ1 design.

How does the UVLO feature of TPS2514AQDBVRQ1 improve system reliability?

The TPS2514AQDBVRQ1 incorporates undervoltage lockout with a 4.1 V turn-on threshold and 100 mV hysteresis, preventing output activation during automotive cold-crank events (where battery voltage dips below 4.5 V). This ensures D+/D− lines remain in high-impedance state until stable 5 V rail is established - eliminating false charging detection and potential communication errors in connected devices. That behavior is intrinsic to the TPS2514AQDBVRQ1's analog control architecture.