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TPS2306

Texas Instruments
Part Number TPS2306
Manufacturer Texas Instruments
Description DUAL SEQUENCING HOT SWAP POWER MANAGER
Published Sep 24, 2019
Detailed Description ą TPS2306 DUAL SEQUENCING HOT SWAP POWER MANAGER D Wide Input Operating Range (2.75 V to 13.6 V) D Controls Ramp-Up Seq...
Datasheet PDF File TPS2306 PDF File

TPS2306
TPS2306

Overview
ą TPS2306 DUAL SEQUENCING HOT SWAP POWER MANAGER D Wide Input Operating Range (2.
75 V to 13.
6 V) D Controls Ramp-Up Sequence and Slope, and Ramp-Down Sequence D Controls Inrush Current D Precise Linear Current Amplifier for High Efficiency and Low Voltage Drop D Programmable Overcurrent Threshold D Programmable Soft-Start Capability and Fault Timer D Internal Charge Pump Drives Low-Cost External NMOS Devices D Cascadable for Three or More Supplies D Fault Indicator Output D Direct-drive of Bus Switch D Shutdown Control with Low-Current Sleep Mode (40 µA) D Input Undervoltage Lockout D 16-pin SOIC package SLVS368 − APRIL 2001 DW PACKAGE TOP VIEW IMAX1 UP1 ENBL IREF CT GND UP2 IMAX2 1 2 3 4 5 6 7 8 16 VCC/CS1 15 DOWN1 14 GATE1 13 FAULT 12 CPUMP 11 GATE2 10 DOWN2 9 CS2 The TPS2306 Hot Swap Power Manager (HSPM) IC provides hot-swap control, fault handling and power supply sequencing of two positive voltage supplies.
The TPS2306 operates over a wide supply range allowing single part inventory for a variety of output voltages.
During the transient period of a live insertion or hot-swap event, the TPS2306 actively limits the inrush current to the plug-in module.
An on-chip linear current amplifier (LCA) provides closed-loop control of the current sourced to the load circuitry on the module.
Subsequently, during normal steady-state loading conditions and in conjunction with an internal high-voltage charge pump, the LCA provides direct gate drive to fully enhance the external NMOS pass devices.
In addition, the < 4-mV input offset voltage of the LCA allows for the use of low-value sense resistors.
Together, these features minimize the insertion loss across the hot-swap interface.
Control inputs allow the designer to program the maximum current level and the inrush current profile (slew rate) during start-up.
Direct programming of the fault time-out also allows the user to establish how long the HSPM can operate in the current control mode prior to turning off the pass...


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