TPS2058 Datasheet | Texas Instruments

TPS2048, TPS2058 QUAD CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES SLVS192 - APRIL 1999 Features D 135-mΩ -Maximum (5-V Input) High-Side MOSFET Switch D 250 m A Continuous Current per Channel D Independent Short-Circuit and Thermal Protection With Overcurrent Logic Output D Operating Range . . . 2.7-V to 5.5-V D Logic-Level Enable Input D 2.5-ms Typical Rise Time D Undervoltage Lockout D 20 µA Maximum Standby Supply Current D Bidirectional Switch D Available in 16-pin SOIC Package D Ambient Temperature Range, - 40°C to 85°C D 2-k V Human-Body-Model, 200-V Machine-Model ESD Protection typical applications D Notebook, Desktop and Palmtop PCs D Monitors, Keyboards, Scanners, and Printers D Digital Cameras, Phones, and PBXs D Hot-Insertion Applications TPS2048 D PACKAGE (TOP VIEW) GND1 IN1 EN1 EN2 GND2 IN2 EN3 EN4 1 2 3 4 5 6 7 8 16 OC1 15 OUT1 14 OUT2 13 OC2 12 OC3 11 OUT3 10 OUT4 9 OC4 TPS2058 D PACKAGE (TOP VIEW) GND1 IN1 EN1 EN2 GND2 IN2 EN3 EN4 1 2 3 4 5 6 7 8 16 OC1 15 OUT1 14 OUT2 13 OC2 12 OC3 11 OUT3 10 OUT4 9 OC4 description The TPS2048 and TPS2058 quad power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely. These devices incorporate in single packages four 135-mΩ N-channel MOSFET high-side power switches for power-distribution systems that require multiple power switches. Each switch is controlled by a logic enable patible with 5-V and 3-V logic. Gate drive is provided by an internal charge pump that controls the power-switch rise times and fall times to minimize current surges during switching. The charge pump, requiring no external ponents, allows operation from supplies as low as 2.7 V. When the output load exceeds the current-limit threshold or a short is present, the TPS2048 and TPS2058 limit the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low. When continuous heavy overloads and short circuits increase...