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TI TPS254900IRVCRQ1 Automotive USB Charge Port Controller For Smart In-Vehicle Charging Experience

With the popularity of smartphones and tablets, USB charging ports have become a standard feature in modern cars. To meet the market demand for high-performance, high-reliability automotive USB charging port controllers, Minjata Electronics sells the TPS254900IRVCRQ1, which is designed specifically for automotive applications and combines high efficiency, safety, and intelligence, making it ideal for creating a high-quality in-vehicle charging experience.

Below is a detailed description of the TPS254900IRVCRQ1 Automotive USB Charging Port Controller:

1，Product Description Of TPS254900IRVCRQ1

TPS254900IRVCRQ1 device is a USB charging controller and power switch which integrates s D+ and D– short-to-battery protection, cable compensation, current monitor (IMON), and IEC ESD protection suitable for automotive USB charging and USB port protection applications.

TPS254900IRVCRQ1 integrated power distribution switch uses N-channel MOSFETs suitable for applications where short circuits or heavy capacitive loads will be encountered. The TPS254900IRVCRQ1 device allows the user to adjust the current-limit thresholds using external resistors. The device enters constant-current mode when the load exceeds the current-limit threshold.

TPS254900IRVCRQ1 device provides Vgus, D+, and D- short-to-battery protection. This protects the upstream voltage regulator, automotive processor, and hub when these pins are exposed to fault conditions.

The TPS254900IRVCRQ1 device also integrates CDP mode, defined in the BC1.2 specification, to enable up to 1.5-A fast charging of most portable devices during data communication.

TPS254900IRVCRQ1 device integrates a cable compensation (CS) feature to compensate for long-cable voltage drop. This keeps the remote USB port output voltage constant to enhance the user experience under high current charging conditions.

TPS254900IRVCRQ1 device provides a current-monitor function (IMON) by connecting a resistor from the IMON pin to GND to provide a positive voltage linearly with load current. This can be used for system power or dynamic power management.

Additionally, the TPS254900IRVCRQ1 device provides ESD protection up to +8 kV (contact discharge) and +15 kV (air discharge) per IEC 61000-4-2 on DP_ _IN and DM_ _IN.

2，Specification Of TPS254900IRVCRQ1

Product:USB Power Controllers

Switch Type:USB Switch

Number of Outputs:1

Ratio - Input:Output:1:1

Output Configuration:High Side

Output Type:N-Channel

Interface:On/Off

Voltage - Load:4.5V ~ 6.5V

Current - Output (Max):3A

Rds On (Typ):45mOhm

Input Type:Non-Inverting

Features:Status Flag

Fault Protection:Current Limiting (Adjustable), Over Temperature, Over Voltage, UVLO

Operating Temperature:-40°C ~ 125°C (TJ)

Unit Weight:36.400 mg

3，Features Of TPS254900IRVCRQ1

AEC-Q100 Qualified With the Following Results:

Device HBM ESD Classification Level H2

Device CDM ESD Classification Level C5

4.5-V to 6.5-V Input Operating Range

Integrated 45-mΩ (typ.) High-Side MOSFET

3-A Maximum Continuous Output Current

VBUS ±5% Cable Compensation Accuracy at Connector

Supports USB BC 1.2 CDP and SDP Modes

Short-to-Battery Protection on OUT, DP_IN, and DM_IN Pins

DP_IN and DM_IN IEC 61000-4-2 Rated

±8-kV Contact and ±15-kV Air Discharge

20-Pin QFN (3-mm × 4-mm) Package

4，The TPS254900IRVCRQ1 can be used in a wide range of automotive USB charging ports, including:

Automotive USB Charging Interface

The TPS254900IRVCRQ1 is widely used in automotive USB charging interfaces (host and hub) to provide stable charging support for in-car electronic devices. Its cable compensation function ensures that the 5V output voltage can be maintained under long cable conditions, avoiding degradation of charging efficiency due to voltage drop.

Multi-Port Power Management

In a multi-port charging system, the TPS254900IRVCRQ1's current-limit regulation function effectively distributes power supply capacity and avoids system failures due to uneven loads. This feature is especially important in in-vehicle environments with limited power capacity.

Fast Charging Support

The TPS254900IRVCRQ1 controller supports USB BC 1.2 Charging Downstream Port (CDP) and Standard Downstream Port (SDP) modes, providing fast charging for compatible devices and meeting the efficient charging needs of modern in-vehicle devices.