Key facts
- Brand
- Texas Instruments
- Model
- TPS2046
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-08-01
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Texas Instruments TPS2046, TPS2056 Dual Current-Limited Power-Distribution Switches Datasheet
The TPS2046 and TPS2056 are dual power-distribution switches designed for applications involving heavy capacitive loads and short circuits. Each device incorporates two 135-mΩ N-channel MOSFET high-side power switches controlled by logic enable inputs compatible with 5-V and 3-V logic. These switches are intended for use in power-distribution systems for devices such as notebook PCs, monitors, and digital cameras.
The devices feature independent short-circuit and thermal protection. When an output load exceeds the current-limit threshold or a short circuit is present, the switches limit the output current to a safe level. A thermal protection circuit shuts off the switch if the junction temperature rises due to continuous heavy overloads, with automatic recovery once the device cools sufficiently. The switches operate from input voltages as low as 2.7 V and are available in 8-pin SOIC and PDIP packages.
Texas Instruments TPS2046 specifications
| Continuous Current per Channel | 250 mA |
|---|---|
| Operating Voltage Range | 2.7 V to 5.5 V |
| Rise Time | 2.5 ms typical |
| Standby Supply Current | 10 µA maximum |
| ESD Protection (Human Body Model) | 2 kV |
| Operating Temperature Range | -40°C to 85°C |
Source: Texas Instruments TPS2046, TPS2056 Dual Current-Limited Power-Distribution Switches Datasheet
All Texas Instruments TPS2046 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum continuous current per channel?
The device can supply a minimum of 250 mA per switch.
From: Texas Instruments TPS2046, TPS2056 Dual Current-Limited Power-Distribution Switches Datasheet
What is the operating voltage range?
The switches operate from supplies as low as 2.7 V up to 5.5 V.
From: Texas Instruments TPS2046, TPS2056 Dual Current-Limited Power-Distribution Switches Datasheet
What input voltage range do the TPS2046 and TPS2056 support?
The devices operate from 2.7 V up to 5.5 V.
From: Texas Instruments TPS2046/TPS2056 Dual Current-Limited Power-Distribution Switches Datasheet
How is an overcurrent condition indicated?
The OCx open‑drain output goes low (active low) when overcurrent or overtemperature occurs.
From: Texas Instruments TPS2046/TPS2056 Dual Current-Limited Power-Distribution Switches Datasheet
What is the maximum continuous current per channel for the TPS2046/TPS2056?
Each channel can continuously source up to 250 mA.
From: Texas Instruments TPS2046/TPS2056 Dual Current-Limited Power-Distribution Switches Datasheet
What input voltage range do the devices operate over?
The devices operate with an input voltage from 2.7 V to 5.5 V.
From: Texas Instruments TPS2046/TPS2056 Dual Current-Limited Power-Distribution Switches Datasheet