TPS254900 Series

Automotive USB host charger with short-to-VBATT protection

Link to Manufacturer Page: https://www.ti.com/

Catalog

Automotive USB host charger with short-to-VBATT protection

Part	Operating Temperature [Min]	Operating Temperature [Max]	Current - Output (Max) [Max]	Fault Protection	Supplier Device Package	Output Type	Package / Case	Switch Type	Number of Outputs	Input Type	Ratio - Input:Output [custom]	Qualification	Grade	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Output Configuration	Mounting Type	Voltage - Load [Min]	Voltage - Load [Max]	Features	Rds On (Typ)	Interface	Voltage - Supply (Vcc/Vdd)	Utilized IC / Part	Supplied Contents	Function	Type
Texas Instruments TPS254900AIRVCTQ1	-40 °C	85 °C	3.2 A	Current Limiting, Over Voltage, UVLO	20-WQFN (4x3)	N-Channel	20-WFQFN Exposed Pad	USB Switch	1	Differential	1:1	AEC-Q100	Automotive	4.5 V	6.5 V	Low Side	Surface Mount	0.5 V	0.7 V
Texas Instruments TPS254900IRVCRQ1	-40 °C	125 ¯C	3 A	Current Limiting (Adjustable), Over Temperature, Over Voltage, UVLO	20-WQFN (4x3)	N-Channel	20-WFQFN Exposed Pad	USB Switch	1	Non-Inverting	1:1	AEC-Q100	Automotive			High Side	Surface Mount	4.5 V	6.5 V	Status Flag	45 mOhm	On/Off	Not Required
Texas Instruments TPS254900AIRVCRQ1	-40 °C	85 °C	3.2 A	Current Limiting, Over Voltage, UVLO	20-WQFN (4x3)	N-Channel	20-WFQFN Exposed Pad	USB Switch	1	Differential	1:1	AEC-Q100	Automotive	4.5 V	6.5 V	Low Side	Surface Mount	0.5 V	0.7 V
Texas Instruments TPS254900AQ1EVM																								TPS254900A-Q1	Board(s)	Power Distribution Switch (Load Switch)	Power Management
Texas Instruments TPS254900Q1EVM-817																								TPS254900-Q1	Board(s)	Power Distribution Switch (Load Switch)	Power Management

Key Features

• Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to +125°C Ambient Operating TemperatureDevice HBM ESD Classification Level H2Device CDM ESD Classification Level C54.5-V to 6.5-V Input Operating Range3.5-V (typ) UVLO to Support Start-StopIntegrated 45-mΩ (typ.) High-Side MOSFET3.2-A Maximum Continuous Output CurrentVBUS±5% Cable Compensation Accuracy at ConnectorSupports USB BC 1.2 CDP and SDP ModesShort-to-Battery Protection on OUT, DP_IN, and DM_IN PinsDP_IN and DM_IN IEC 61000-4-2 Rated±8-kV Contact and ±15-kV Air Discharge20-Pin QFN (3-mm × 4-mm) PackageQualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to +125°C Ambient Operating TemperatureDevice HBM ESD Classification Level H2Device CDM ESD Classification Level C54.5-V to 6.5-V Input Operating Range3.5-V (typ) UVLO to Support Start-StopIntegrated 45-mΩ (typ.) High-Side MOSFET3.2-A Maximum Continuous Output CurrentVBUS±5% Cable Compensation Accuracy at ConnectorSupports USB BC 1.2 CDP and SDP ModesShort-to-Battery Protection on OUT, DP_IN, and DM_IN PinsDP_IN and DM_IN IEC 61000-4-2 Rated±8-kV Contact and ±15-kV Air Discharge20-Pin QFN (3-mm × 4-mm) Package

Description

The TPS254900A-Q1 device is a USB charging-port controller and power switch with short-to-battery protection. This feature provides protection on OUT, DM_IN and DP_IN. These three pins withstand voltage up to 18 V. The internal MOSFET turns off quickly when the short-to-battery condition occurs. Rapid turnoff is very important to protect the upstream DC-DC converter, processor, or hub data lines. The TPS254900A-Q1 has a low UVLO of 3.5 V, so that the power switch does not turn off during start-stop. The TPS254900A-Q1 45-mΩ power switch has two selectable, adjustable current limits that support port power management by changing to a lower current limit when adjacent ports are experiencing heavy loads. This is important in systems with multiple ports and upstream power supplies with limited capacity. The TPS254900A-Q1 device has a current-sense output that is able to control an upstream supply, which allows it to maintain 5 V at the USB port even with heavy charging currents. This feature is important in systems with long USB cables where significant voltage drops can occur with fast-charging portable devices. A current monitor allows a system to monitor the load current in real time by monitoring the IMON voltage. The current monitor is very useful and can be used for dynamic port-power management. The TPS254900A-Q1 device also provides ESD protection capability per IEC 61000-4-2, level 4 on DP_IN and DM_IN. The TPS254900A-Q1 device is a USB charging-port controller and power switch with short-to-battery protection. This feature provides protection on OUT, DM_IN and DP_IN. These three pins withstand voltage up to 18 V. The internal MOSFET turns off quickly when the short-to-battery condition occurs. Rapid turnoff is very important to protect the upstream DC-DC converter, processor, or hub data lines. The TPS254900A-Q1 has a low UVLO of 3.5 V, so that the power switch does not turn off during start-stop. The TPS254900A-Q1 45-mΩ power switch has two selectable, adjustable current limits that support port power management by changing to a lower current limit when adjacent ports are experiencing heavy loads. This is important in systems with multiple ports and upstream power supplies with limited capacity. The TPS254900A-Q1 device has a current-sense output that is able to control an upstream supply, which allows it to maintain 5 V at the USB port even with heavy charging currents. This feature is important in systems with long USB cables where significant voltage drops can occur with fast-charging portable devices. A current monitor allows a system to monitor the load current in real time by monitoring the IMON voltage. The current monitor is very useful and can be used for dynamic port-power management. The TPS254900A-Q1 device also provides ESD protection capability per IEC 61000-4-2, level 4 on DP_IN and DM_IN.