TPS25921ADR is a compact electronic fuse (eFuse) from Texas Instruments, operating within a voltage range of 4.5V to 18V. It is packaged in an SOIC-8 surface mount format. This device offers comprehensive protection features and can be used to control and safeguard various common DC buses.
This device incorporates a power switch with low on-resistance, with a typical value of 90mΩ. Its adjustable current limit range is from 0.4A to 1.6A, and the accuracy is up to ±2% at room temperature. Additionally, it provides programmable output slew rate control (via the SS pin capacitor), overvoltage/undervoltage protection (threshold accuracy ±3%), and over-temperature protection. When a fault occurs, the FLT pin will output an indication signal, and this model will attempt to automatically retry to recover.
Features ：
• Product Type: Electronic Fuse (eFuse), 1-channel, with automatic retry capability
• Operating voltage: 4.5V to 18V, maximum withstand voltage 20V
• Conduction resistance: Typical value 90 mΩ
• Adjustable current limit: 0.4A to 1.6A, with an accuracy of ±2%
• Protection features: Overcurrent protection, Overvoltage Protection (OVP), Undervoltage Protection (UVLO), Overtemperature Protection (OTP)
• Programmable feature: The soft start and output slew rate can be controlled via the SS pin.
• Status indication: FLT fault indication pin, used for system status monitoring
• Operating temperature range: -40°C to +125°C
• Compact packaging: SOIC-8 (D), size 4.90mm × 3.91mm
• MSL level: Level-1 (Unlimited, unlimited workshop lifespan)
• Pin surface treatment: NiPdAu
• Environmental compliance: Meets RoHS standards
• Safety Certification: UL2367 Certification (File No. E169910) and UL60950 Safety Standard
Application：
• White goods, electrical appliances
• Set-top box, DVD player and game console
• Hard disk drive and solid-state drive
• Smart electricity meters, gas analyzers
• Intelligent load switch, USB switch
• Adapter power supply device
