Texas Instruments TPS25940ARVCR

TPS25940ARVCR Description
The TPS25940ARVCR eFuse Power Switch is a small, feature-rich power management device with a full array of protection features, including a low-power DevSleepTM mode for SATATM Device Sleep compliance. Many common DC bus voltages can be controlled thanks to the wide operating range. The device is ideally suited for systems having load-side holdup energy that must not drain back to a failed supply bus due to integrated back-to-back FETs providing bidirectional current regulation. Many programmable features are available for load, source, and device safety, including overcurrent, dVo/dt ramp, and overvoltage and Undervoltage thresholds. The device outputs PGOOD, FLT, and exact current monitor for system status monitoring and downstream load control. Undervoltage and overvoltage thresholds that may be precisely programmed, as well as the low IQ DevSleep mode, make SSD power management design easier. When V(IN) (V(OUT) - 10 mV), the TPS25940ARVCR monitors V(IN) and V(OUT) to provide true reverse current blocking. In systems where the backup voltage is higher than the bus voltage, this function allows for a quick switchover to a boosted voltage energy storage element.

TPS25940ARVCR Features
42 mΩ RON (Typical)
Reverse Current Blocking
15 μA Disabled IQ (Typical)
1 μs Reverse Voltage Shutoff
200 μA Operating IQ (Typical)
Programmable dVo/dt Control
Power Good and Fault Outputs
95 μA DevSleep Mode IQ (Typical)
IMON Current Indicator Output (±8%)
2.7 V – 18 V Operating Voltage, 20 V (Max)
±2% Overvoltage, Undervoltage Threshold
0.6 A to 5.3 A Adjustable Current Limit (±8%)
–40°C to 125°C Junction Temperature Range


TPS25940ARVCR Applications
Smart Load Switch
Adapter Powered Devices
Enterprise and Micro Servers
Telecom Switches and Routers
PCIe/SATA/SAS HDD and SSD Drives
RAID Cards - Holdup Power Management
Set-Top-Box (STB), DTVs and Game Consoles