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TPS2054D Datasheet(PDF) 1 Page - Texas Instruments |
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TPS2054D Datasheet(HTML) 1 Page - Texas Instruments |
1 / 28 page TPS2044, TPS2054 QUAD POWER-DISTRIBUTION SWITCHES SLVS174B – JULY 1998 – REVISED FEBRUARY 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 20-µA-Maximum Standby Supply Current D Bidirectional Switch D 16-pin SOIC Package 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 TPS2044 and TPS2054 quad power- distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. The TPS2044 and the TPS2054 incorporate in single packages four 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 that controls the power-switch rise times and fall times to minimize current surges during switching. The charge pump, requiring no external components, 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 TPS2044 and TPS2054 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 TPS2044 and TPS2054 are designed to limit at 0.9-A load. These power-distribution switches are available in 16-pin small-outline integrated-circuit (SOIC) packages and operate over an ambient temperature range of –40 °C to 85°C. AVAILABLE OPTIONS RECOMMENDED MAXIMUM CONTINUOUS TYPICAL SHORT-CIRCUIT PACKAGED DEVICES TA ENABLE MAXIMUM CONTINUOUS LOAD CURRENT (A) CURRENT LIMIT AT 25 °C (A) SOIC (D)† –40 °C to 85°C Active low 0.5 0.9 TPS2044D –40 °C to 85°C Active high 0.5 0.9 TPS2054D † The D package is available taped and reeled. Add an R suffix to device type (e.g., TPS2044DR) 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 5 6 7 8 16 15 14 13 12 11 10 9 GND1 IN1 EN1 EN2 GND2 IN2 EN3 EN4 OC1 OUT1 OUT2 OC2 OC3 OUT3 OUT4 OC4 TPS2044 D PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 GND1 IN1 EN1 EN2 GND2 IN2 EN3 EN4 OC1 OUT1 OUT2 OC2 OC3 OUT3 OUT4 OC4 TPS2054 D PACKAGE (TOP VIEW) |
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