The TPS2051CDBVR power-distribution switch series is designed for applications like USB that are prone to experience heavy capacitive loads and short circuits. This article mainly introduces Layout, Pinout, Datasheet and other detailed information about Texas Instruments TPS2051CDBVR.
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Apr 8, 2022
Lynn Hume
Active Current Limiting Circuit Schematic
The TPS2051CDBVR power-distribution switch series is designed for applications like USB that are prone to experience heavy capacitive loads and short circuits. This article mainly introduces Layout, Pinout, Datasheet and other detailed information about Texas Instruments TPS2051CDBVR.
TPS2051CDBVR
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $6.3 | $6.3 |
| 10+ | $4.48 | $44.8 |
| 25+ | $4.012 | $100.3 |
| 100+ | $3.499 | $349.9 |
| 250+ | $3.2556 | $813.9 |
| 500+ | $3.1088 | $1554.4 |
| 1000+ | $2.9878 | $2987.8 |
The TPS2051CDBVR power-distribution switch series is designed for applications like USB that are prone to experience heavy capacitive loads and short circuits. Multiple devices in this family have set current-limit limits for applications ranging from 0.5 A to 2 A.
When the output load exceeds the current limit threshold, the TPS2051CDBVR family operates in a constant-current mode, limiting the output current to a safe level. This ensures a consistent fault current under all circumstances. When the output is shorted, the fast overload response time reduces the demand on the main 5-V supply, allowing it to provide regulated power. To reduce current surges during turnon and turnoff, the rise and fall times of the power switch are managed.
The following figure is TPS2051CDBVR Pinout.
Pinout
| Pin Number | Pin Name | Description |
| 4 | EN/EN | Enable input, logic high turns on power switch |
| 3 | FLT | Active-low open-drain output, asserted during overcurrent, or overtemperature conditions |
| 2 | GND | Ground connection |
| 5 | IN | Input voltage and power-switch drain; connect a 0.1-µF or greater ceramic capacitor from IN to GND close to the IC |
| 1 | OUT | Power-switch output, connect to load. |
The followings are TPS2051CDBVR Symbol, Footprint and 3D Model.
Symbol
Footprint
3D Model
• Single Power Switch Family
• Pin-for-Pin With Existing TI Switch Portfolio
• Rated Currents of 0.5 A, 1 A, 1.5 A, 2 A
• ±20% Accurate, Fixed, Constant Current Limit
• Fast Overcurrent Response: 2 µs
• Deglitched Fault Reporting
• Selected Parts With TPS2051CDBVR
• Reverse Current Blocking
• Built-In Soft Start
• Ambient Temperature Range: –40°C to 85°C
• UL Listed and CB-File No. E169910
Texas Instruments TPS2051CDBVR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments TPS2051CDBVR.
| Product Attribute | Attribute Value | |
|---|---|---|
| Lifecycle Status | ACTIVE (Last Updated: 3 days ago) | |
| Factory Lead Time | 6 Weeks | |
| Mount | Surface Mount | |
| Mounting Type | Surface Mount | |
| Package / Case | SC-74A, SOT-753 | |
| Number of Pins | 5Pins | |
| Operating Temperature | -40°C~125°C TJ | |
| Packaging | Digi-Reel® | |
| JESD-609 Code | e4 | |
| Pbfree Code | yes | |
| Part Status | Active | |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) | |
| Number of Terminations | 5Terminations | |
| ECCN Code | EAR99 | |
| Resistance | 97mOhm | |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
| Terminal Position | DUAL |
| Product Attribute | Attribute Value | |
|---|---|---|
| Terminal Form | GULL WING | |
| Peak Reflow Temperature (Cel) | 260 | |
| Number of Functions | 1Function | |
| Supply Voltage | 5V | |
| Base Part Number | TPS2051 | |
| Pin Count | 5 | |
| Output Type | N-Channel | |
| Interface | On/Off | |
| Analog IC - Other Type | ANALOG CIRCUIT | |
| Nominal Supply Current | 90μA | |
| Output Configuration | High Side | |
| Output Current | 500mA | |
| Voltage - Supply (Vcc/Vdd) | Not Required | |
| Input Type | Non-Inverting | |
| Switch Type | USB Switch | |
| Number of Voltages Monitored | 1 | |
| Nominal Input Voltage | 5.5V |
| Product Attribute | Attribute Value | |
|---|---|---|
| Threshold Voltage | 1.45V | |
| Ratio - Input:Output | 1:1 | |
| Voltage - Load | 4.5V~5.5V | |
| Fault Protection | Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO | |
| Rds On (Typ) | 97m Ω | |
| Max Junction Temperature (Tj) | 125°C | |
| Ambient Temperature Range High | 85°C | |
| Features | Load Discharge, Status Flag | |
| Height | 1.45mm | |
| Length | 2.9mm | |
| Width | 1.6mm | |
| Thickness | 1.2mm | |
| REACH SVHC | No SVHC | |
| Radiation Hardening | No | |
| RoHS Status | ROHS3 Compliant | |
| Lead Free | Lead Free |
The TPS2051CDBVR Functional Block Diagram is shown as follows.
Functional Block Diagram
The following shows TPS2051CDBVR Typical Application Diagram.
Typical Application Diagram
1. Connect the IN and GND pins with a low-inductance trace, and place the 100-nF bypass capacitor near the IN and GND pins.
2. Install a 10-µF low ESR ceramic capacitor near the OUT and GND pins, then connect them with a low inductance trace.
3. A wide and short copper trace must be used to link the PowerPAD to the PCB ground plane.
Layout
| Part Number | Description | Manufacturer |
| TPS2051CDBVTPOWER CIRCUITS | 0.5A loading, 4.5-5.5V, 97mΩ USB power switch, active-high, output discharge, reverse blocking 5-SOT-23 -40 to 125 | Texas Instruments |
• USB Ports and Hubs, Laptops, and Desktops
• High-Definition Digital TVs
• Set-Top Boxes
• Short-Circuit Protection
The TPS2051CDBVR Package is shown as follows.
Package
Texas Instruments Incorporated, based in Dallas, Texas, creates and manufactures semiconductors and different integrated circuits, which it sells to electronics designers and manufacturers all over the world.
Download datasheets and manufacturer documentation for TPS2051CDBVR
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