Overview
The TPS2044ADR, produced by Texas Instruments, is a quad power-distribution switch designed for applications requiring multiple high-side power switches. This device is part of the TPS2044A and TPS2054A series, which are intended for use in power-distribution systems that may encounter heavy capacitive loads and short circuits. The TPS2044ADR features four 80-mΩ N-channel MOSFET high-side power switches, each controlled by a logic enable compatible with 5-V and 3-V logic.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Switches | 4 | |
| Maximum Continuous Load Current | 0.5 | A |
| Typical Short-Circuit Current Limit at 25°C | 0.9 | A |
| Static Drain-Source On-State Resistance (5-V operation) | 80-100 | mΩ |
| Operating Voltage Range | 2.7 V to 5.5 V | |
| Ambient Temperature Range | –40°C to 85°C | |
| Package Type | 16-pin SOIC (D) | |
| Enable Input Type | Active Low | |
| Standby Supply Current | 10 µA (typical) |
Key Features
- Independent thermal and short-circuit protection with overcurrent logic output
- CMOS- and TTL-compatible enable inputs
- Undervoltage lockout
- Bidirectional switch
- ESD protection
- Internal charge pump for gate drive, allowing operation from supplies as low as 2.7 V
- Dual-threshold thermal trip for independent operation of power switches
- Automatic recovery from thermal shutdown
- UL Listed – File No. E169910
Applications
The TPS2044ADR is suitable for various power-distribution systems, including:
- Hot-swap and hot-plug applications
- Power distribution in telecommunications and networking equipment
- Server and storage systems
- Industrial control systems
- Any application requiring multiple high-side power switches with robust protection features
Q & A
- What is the maximum continuous load current for the TPS2044ADR?
The maximum continuous load current is 0.5 A per channel.
- What is the typical short-circuit current limit at 25°C?
The typical short-circuit current limit at 25°C is 0.9 A.
- What is the operating voltage range for the TPS2044ADR?
The operating voltage range is from 2.7 V to 5.5 V.
- What type of package is the TPS2044ADR available in?
The TPS2044ADR is available in a 16-pin SOIC (D) package.
- Does the TPS2044ADR have thermal protection?
- How does the device handle overcurrent conditions?
In an overcurrent condition, the device switches into a constant-current mode and asserts the overcurrent (OCx) logic output low.
- What is the standby supply current for the TPS2044ADR?
The standby supply current is typically 10 µA.
- Is the TPS2044ADR ESD protected?
- What is the ambient temperature range for the TPS2044ADR?
The ambient temperature range is from –40°C to 85°C.
- Does the TPS2044ADR have undervoltage lockout?
