Overview
The TPS2115AIPWRQ1 is an auto-switching power multiplexer from Texas Instruments, designed to enable seamless transition between two power supplies. This device is particularly suited for applications requiring reliable and efficient power management, such as in automotive, infotainment, navigation, and multimedia systems. It operates within a voltage range of 2.8 V to 5.5 V and can deliver up to 1 A of output current. The TPS2115AIPWRQ1 includes extensive protection circuitry, including user-programmable current limiting, thermal protection, inrush current control, and reverse- and cross-conduction blocking, making it a robust solution for various power multiplexing needs.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage (IN1, IN2) | 2.8 | - | 5.5 | V |
| Output Current (IO(OUT)) | 0.63 | - | 1.25 | A |
| Operating Free-Air Temperature (TA) | -40 | - | 85 | °C |
| Operating Virtual-Junction Temperature (TJ) | -40 | - | 125 | °C |
| Drain-Source On-State Resistance (rDS(on)) at 25°C, IL = 500 mA | 84 | 110 | - | mΩ |
| Thermal Shutdown Threshold | - | - | 135 | °C |
| Recovery from Thermal Shutdown | - | - | 125 | °C |
| Junction-to-Ambient Thermal Resistance (RθJA) | - | - | 159.2 | °C/W |
Key Features
- Auto-switching between two power supplies, such as battery and AC to DC wall adapter.
- Wide operating voltage range: 2.8 V to 5.5 V.
- User-programmable current limiting with a range of 0.63 A to 1.25 A.
- Thermal protection and inrush current control.
- Reverse- and cross-conduction blocking.
- Low standby current: 0.5 μA typical.
- Low operating current: 55 μA typical.
- TTL- and CMOS-compatible input pins with 1-μA pullup.
- Available in TSSOP-8 (PW) package.
Applications
- Automotive power multiplexing applications.
- Infotainment systems.
- Navigation systems.
- Multimedia functions: digital radios, MP3 players, phone chargers.
- Camera applications.
Q & A
- What is the operating voltage range of the TPS2115AIPWRQ1?
The operating voltage range is from 2.8 V to 5.5 V.
- What is the maximum output current of the TPS2115AIPWRQ1?
The maximum output current is up to 1.25 A.
- What types of protection does the TPS2115AIPWRQ1 include?
The device includes user-programmable current limiting, thermal protection, inrush current control, and reverse- and cross-conduction blocking.
- What is the typical standby current of the TPS2115AIPWRQ1?
The typical standby current is 0.5 μA.
- What is the typical operating current of the TPS2115AIPWRQ1?
The typical operating current is 55 μA.
- What package type is the TPS2115AIPWRQ1 available in?
The device is available in a TSSOP-8 (PW) package.
- What are some common applications of the TPS2115AIPWRQ1?
Common applications include automotive power multiplexing, infotainment systems, navigation systems, multimedia functions, and camera applications.
- How does the TPS2115AIPWRQ1 handle thermal shutdown?
The device has a thermal shutdown threshold of 135°C and recovers from thermal shutdown at 125°C.
- What is the junction-to-ambient thermal resistance of the TPS2115AIPWRQ1?
The junction-to-ambient thermal resistance (RθJA) is 159.2°C/W.
- Are the input pins TTL- and CMOS-compatible?
Yes, the input pins (D0 and D1) are TTL- and CMOS-compatible with a 1-μA pullup.
