Overview
The TPS259474LRPWR is a highly integrated electronic fuse (eFuse) produced by Texas Instruments. This device is designed to provide comprehensive protection and control for power supply systems, particularly in automotive and industrial applications. It operates over a wide input voltage range of 2.7 V to 23 V and features low on-resistance, integrated reverse polarity protection, and various protection mechanisms such as overvoltage, overcurrent, and overtemperature protection.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 10-VQFN-HR (2x2) |
| Pins | 10 |
| Operating Temperature Range (°C) | -40 to 125 |
| Input Voltage Range (V) | 2.7 to 23 |
| Absolute Maximum Input Voltage (V) | 28 |
| Maximum Output Current (A) | 5.5 |
| On-Resistance (mΩ) | 28.3 (typ.) |
| Overvoltage Clamp (OVC) Thresholds (V) | 3.8, 5.7, 13.8 |
| Overcurrent Protection Adjustable Threshold (A) | 0.5 to 6 |
| Load Current Monitor Accuracy (%) | ±6 (IOUT ≥ 1 A) |
| Response Time for Short-Circuit Protection (ns) | 500 (typ.) |
| Certifications | UL 2367, IEC 62368-1 CB certified |
Key Features
- Wide operating input voltage range: 2.7 V to 23 V
- Integrated back-to-back FETs with low on-resistance (RON = 28.3 mΩ typ.)
- Ideal diode operation with true reverse current blocking
- Fast overvoltage protection with pin-selectable threshold and 5-µs response time
- Adjustable overvoltage lockout (OVLO) with 1.2-µs response time
- Overcurrent protection with load current monitor output (ILM) and adjustable threshold (0.5 A to 6 A)
- Active current limit or circuit-breaker options
- Adjustable transient blanking timer to allow peak currents up to 2 × ILIM
- Fast-trip response for short-circuit protection with 500-ns response time
- Active high enable input with adjustable undervoltage lockout threshold (UVLO)
- Adjustable output slew rate control (dV/dt)
- Overtemperature protection
- Digital outputs for priority power MUX control (AUXOFF) and fault indication (FLT) or Power Good indication (PG)
Applications
The TPS259474LRPWR is suitable for various applications requiring robust power supply protection and control, including:
- Automotive systems: battery management, power distribution, and protection against electrical surges.
- Industrial control systems: motor control, power supplies, and protection against overcurrent and overvoltage conditions.
- Server and data center power supplies: ensuring reliable and protected power delivery.
- Medical devices: providing safe and reliable power supply protection.
Q & A
- What is the operating input voltage range of the TPS259474LRPWR?
The operating input voltage range is 2.7 V to 23 V. - What is the maximum output current of the TPS259474LRPWR?
The maximum output current is 5.5 A. - What type of package does the TPS259474LRPWR come in?
The device comes in a 10-VQFN-HR (2x2) package. - Does the TPS259474LRPWR have integrated reverse polarity protection?
Yes, it has integrated reverse polarity protection. - What are the overvoltage clamp (OVC) thresholds available for the TPS259474LRPWR?
The OVC thresholds are 3.8 V, 5.7 V, and 13.8 V. - How accurate is the load current monitor output (ILM) of the TPS259474LRPWR?
The load current monitor accuracy is ±6% for IOUT ≥ 1 A. - What certifications does the TPS259474LRPWR hold?
The device is UL 2367 recognized and IEC 62368-1 CB certified. - Can the TPS259474LRPWR handle short-circuit protection?
Yes, it has fast-trip response for short-circuit protection with a 500-ns response time. - Is the TPS259474LRPWR suitable for automotive applications?
Yes, it is designed for automotive and other high-reliability applications. - Does the TPS259474LRPWR have adjustable output slew rate control?
Yes, it has adjustable output slew rate control (dV/dt).
