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TPS2042DRG4 Fiches technique(PDF) 1 Page - Texas Instruments |
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TPS2042DRG4 Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 26 page TPS2042, TPS2052 DUAL POWER-DISTRIBUTION SWITCHES SLVS173A – AUGUST 1998 – REVISED APRIL 1999 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D 135-mΩ -Maximum (5-V Input) High-Side MOSFET Switch D 500 mA Continuous Current per Channel D 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 10 µA Maximum Standby Supply Current D Bidirectional Switch D Available in 8-pin SOIC and PDIP Packages D Ambient Temperature Range, –40°C to 85°C D 2-kV Human-Body-Model, 200-V Machine-Model ESD Protection D UL Listed – File No. E169910 description The TPS2042 and TPS2052 dual power distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. The TPS2042 and the TPS2052 incorporate in single packages two 135-m Ω N-channel MOSFET high-side power switches for power distribution systems that require multiple power switches. Each switch is controlled by a logic enable that is compatible with 5-V logic and 3-V logic. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and 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 TPS2042 and TPS2052 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 the power dissipation in the switch causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off until valid input voltage is present. The TPS2042 and TPS2052 are designed to limit at 0.9-A load. These power distribution switches are available in 8-pin small-outline integrated circuit (SOIC) and 8-pin plastic dual-in-line packages (PDIP) and operate over an ambient temperature range of –40 °C to 85°C. AVAILABLE OPTIONS RECOMMENDED MAXIMUM CONTINUOUS TYPICAL SHORT CIRCUIT CURRENT PACKAGED DEVICES TA ENABLE MAXIMUM CONTINUOUS LOAD CURRENT (A) SHORT-CIRCUIT CURRENT LIMIT AT 25 °C (A) SOIC (D)† PDIP (P) –40 °C to 85°C Active low 0.5 0.9 TPS2042D TPS2042P –40 °C to 85°C Active high 0.5 0.9 TPS2052D TPS2052P † The D package is available taped and reeled. Add an R suffix to device type (e.g., TPS2042DR) Copyright © 1999, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 1 2 3 4 8 7 6 5 GND IN EN1 EN2 OC1 OUT1 OUT2 OC2 TPS2042 D OR P PACKAGE (TOP VIEW) 1 2 3 4 8 7 6 5 GND IN EN1 EN2 OC1 OUT1 OUT2 OC2 TPS2052 D OR P PACKAGE (TOP VIEW) |
Numéro de pièce similaire - TPS2042DRG4 |
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Description similaire - TPS2042DRG4 |
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