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TPS2321

Texas Instruments
Part Number TPS2321
Manufacturer Texas Instruments
Description DUAL HOT SWAP POWER CONTROLLERS
Published Jul 3, 2022
Detailed Description www.ti.com TPS2320 TPS2321 SLVS276F – MARCH 2000 – REVISED JULY 2013 DUAL HOT SWAP POWER CONTROLLERS WITH INDEPENDENT C...
Datasheet PDF File TPS2321 PDF File

TPS2321
TPS2321

Overview
www.
ti.
com TPS2320 TPS2321 SLVS276F – MARCH 2000 – REVISED JULY 2013 DUAL HOT SWAP POWER CONTROLLERS WITH INDEPENDENT CIRCUIT BREAKER Check for Samples: TPS2320, TPS2321 FEATURES 1 • Dual-Channel High-Side MOSFET Drivers • IN1: 3 V to 13 V; IN2: 3 V to 5.
5 V • Output dV/dt Control Limits Inrush Current • Independent Circuit-Breaker With Programmable Overcurrent Threshold and Transient Timer • CMOS- and TTL-Compatible Enable Input • Low, 5-μA Standby Supply Current (Max) • Available in 16-Pin SOIC and TSSOP Package • –40°C to 85°C Ambient Temperature Range • Electrostatic Discharge Protection D OR PW PACKAGE (TOP VIEW) GATE1 1 GATE2 2 DGND 3 TIMER 4 VREG 5 AGND 6 ISENSE2 7 ISENSE1 8 16 DISCH1 15 DISCH2 14 ENABLE 13 FAULT 12 ISET1 11 ISET2 10 IN2 9 IN1 NOTE: Terminal 14 is active-high on TPS2321.
typical application APPLICATIONS • Hot-Swap/Plug/Dock Power Management • Hot-Plug PCI, Device Bay V1 3 V–13 V IN1 VREG ISET1 ISENSE1 GATE1 DISCH1 VO1 + • Electronic Circuit Breaker DESCRIPTION AGND DGND TPS2320 FAULT The TPS2320 and TPS2321 are dual-channel hot- ENABLE TIMER swap controllers that use external N-channel MOSFETs as high-side switches in power IN2 ISET2 ISENSE2 GATE2 DISCH2 applications.
Features of these devices, such as overcurrent protection (OCP), inrush-current control, and the ability to discriminate between load transients V2 3 V–5.
5 V VO2 + and faults, are critical requirements for hot-swap applications.
A The TPS2320/21 devices incorporate undervoltage lockout (UVLO) to ensure the device is off at startup.
Each internal charge pump, capable of driving multiple MOSFETs, provides enough gate-drive voltage to fully enhance the N-channel MOSFETs.
The charge pumps control both the rise times and fall times (dv/dt) of the MOSFETs, reducing power transients during power up/down.
The circuit-breaker functionality combines the ability to sense overcurrent conditions with a timer function; this allo...


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