TPS2052DR
Power Management
Technical Specifications
| Type | Description |
|---|---|
| Number of Channels | 2 |
| Control Input Logic | Active High |
| Maximum Continuous Current | 500mA |
| Operating Temperature | -40°C~+85°C |
| Features | Overcurrent Protection;Short-Circuit Protection;Over temperature protection;Under-voltage lockout;Integrated charge pump |
| Type | Description |
|---|---|
| Rds On Ohm | 80mΩ |
| Supply Voltage | 2.7V~5.5V |
| Type | High Side Switch |
| Package / Case | SOIC-8 |
Product Introduction
The TPS2042 and TPS2052 dual power distribution switches are designed for applications that may encounter heavy capacitive loads and short circuits. The TPS2042 and TPS2052 integrate two 135-mΩ N-channel MOSFET high-side power switches in a single package, suitable for power distribution systems requiring multiple power switches. Each switch is controlled by a logic enable input compatible with both 5-V and 3-V logic. Gate drive is provided by an internal charge pump designed to control the rise and fall times of the power switches, reducing 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 circuit occurs, the TPS2042 and TPS2052 limit the output current to a safe level by switching to a constant-current mode and pulling the overcurrent logic output low. When a sustained severe overload or short circuit increases power dissipation in the switch, causing the junction temperature to rise, the thermal protection circuit shuts down the switch to prevent damage. Recovery from thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off until a valid input voltage is present.
The TPS2042 and TPS2052 are designed to limit current at a 0.9-A load. These power distribution switches are available in 8-pin SOIC and 8-pin PDIP packages, and operate over an ambient temperature range of -40°C to 85°C.
Features
- 135 mΩ maximum (5V input) high-side MOSFET switch
- 500 mA continuous current per channel
- Short-circuit and thermal protection with overcurrent logic output
- Operating range: 2.7V to 5.5V logic-level enable input
- Typical rise time 2.5 ms
- Undervoltage lockout
- Standby current 10 µA maximum
- Bidirectional switch
- Available in 8-pin SOIC and PDIP packages
- Ambient temperature range: -40°C to 85°C
- ESD protection: Human Body Model 2 kV, Machine Model 200 V
- UL certified – File No. E169910
- Designed for 0.9A load limit
- Internal charge pump requires no external components
- Charge pump operates from supplies as low as 2.7V
- Driver controls gate voltage of power switch
- Rise and fall times typically 2 ms to 4 ms
- Logic enable disables power switch and reduces supply current to less than 10 µA
- OCx open-drain output asserted (active low) under overcurrent or over-temperature conditions
- Sense FET monitors current delivered to load
- Dual-threshold thermal shutdown for independent operation of power distribution switches
- Thermal sense with built-in hysteresis
- Voltage sensing circuit monitors input voltage
- Power switch turns off when input voltage falls below approximately 2V
- Power switch is N-channel MOSFET with maximum on-resistance of 135 mΩ
- Power switch delivers at least 500 mA per channel
- Enable input compatible with TTL and CMOS logic levels
- OCx open-drain output asserted (active low) upon over-temperature or overcurrent event
- Voltage sensing circuit monitors input voltage
- Power switch turns off when input voltage falls below approximately 2V
- Absolute maximum ratings include input voltage range, output voltage range, and continuous output current
- Storage temperature range: -65°C to 150°C
- Lead soldering temperature: 260°C within 10 seconds at 1.6 mm (1/16 inch) from case
- ESD protection: Human Body Model 2 kV, Machine Model 0.2 kV
- Recommended operating conditions include input voltage, continuous output current, and operating virtual junction temperature
- Static drain-to-source on-resistance ranges from 80 mΩ to 135 mΩ depending on temperature and input voltage
- Output voltage rise and fall times specified
- Enable input high- and low-level input voltages specified
- Turn-on and turn-off times specified
- Short-circuit output current limited
- Supply current and leakage current specifications provided
- Undervoltage lockout with 100 mV hysteresis
- Overcurrent OCx sink current and output low voltage specified
- OCx off-state current specified
Datasheet
Alternative Parts
Common TPS2052DR alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8536500090 |
| USHTS | 8536507000 |
| TARIC | 8536500300 |
| Type | Details |
|---|---|
| CAHTS | 8536501000 |
| BRHTS | 85365090 |
| INHTS | 85365090 |
| MXHTS | 8536.50.09 |
Sourcing Information
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