TPS2042D
USB Power Switch Dual 5.5V 0.9A 8-Pin SOIC Tube
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Part Number : TPS2042D
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Package/Case : 8-SOIC
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Brands : Texas Instruments
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Components Categories : Power Switch ICs - Power Distribution
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Datesheet : TPS2042D DataSheet (PDF)
Overview of TPS2042D
The TPS2042 and TPS2052 dual power distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. Both the TPS2042 and the TPS2052 incorporate in a single package two 135-m N-channel MOSFET high-side power switches for power distribution systems that require multiple power switches. Each switch is controlled by a logic enable that is compatible with 5-V logic and 3-V logic. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.
When the output load exceeds the current-limit threshold or a short is present, the TPS2042 and TPS2052 limit the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx\) logic output low. When continuous heavy overloads and short circuits increase the power dissipation in the switch causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off until valid input voltage is present.
The TPS2042 and TPS2052 are designed to limit at 0.9-A load. These power distribution switches are available in 8-pin small-outline integrated circuit (SOIC) and 8-pin plastic dual-in-line packages (PDIP) and operate over an ambient temperature range of -40°C to 85°C.
The D package is available taped and reeled. Add an R suffix to device type (e.g., TPS2042DR)
Key Features
- 135-m -Maximum (5-V Input) High-Side MOSFET Switch
- 500 mA Continuous Current per Channel
- Short-Circuit Protection
- Independent Thermal Protection
- Overcurrent Logic Output
- Operating Range...2.7-V to 5.5-V
- Logic-Level Enable Input
- 2.5-ms Typical Rise Time
- Undervoltage Lockout
- 10 uA Maximum Standby Supply Current
- Bidirectional Switch
- Available in 8-pin SOIC and PDIP Packages
- Ambient Temperature Range, -40°C to 85°C
- 2-kV Human-Body-Model, 200-V Machine-Model ESD Protection
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Manufacturer | Texas Instruments | Product Category | Power Switch ICs - Power Distribution |
RoHS | Details | Type | USB Switch |
Number of Outputs | 2 Output | Output Current | 500 mA |
Current Limit | 900 mA | On Resistance - Max | 95 mOhms |
On Time - Max | 20 ms | Off Time - Max | 40 ms |
Operating Supply Voltage | 2.7 V to 5.5 V | Minimum Operating Temperature | - 40 C |
Maximum Operating Temperature | + 85 C | Mounting Style | SMD/SMT |
Package / Case | SOIC-8 | Series | TPS2042 |
Brand | Texas Instruments | Product | USB Power Switches |
Product Type | Power Switch ICs - Power Distribution | Factory Pack Quantity | 75 |
Subcategory | Switch ICs | Supply Voltage - Max | 5.5 V |
Supply Voltage - Min | 2.7 V | Unit Weight | 0.002561 oz |
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