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TPS2043BD Datasheet(PDF) 1 Page - Texas Instruments |
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TPS2043BD Datasheet(HTML) 1 Page - Texas Instruments |
1 / 49 page D−16 D−8 DBV−5 DRB−8 DGN−8 1 FEATURES APPLICATIONS 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 GND IN2 EN3† NC OC3 OUT3 NC NC 1 2 3 4 8 7 6 5 GND IN IN EN† OUT OUT OUT OC TPS2041B/TPS2051B D ANDDGNPACKAGES (TOP VIEW) 1 2 3 4 8 7 6 5 GND GND IN IN EN1 EN1 † † EN2 EN2 † † OC1 OC1 OUT1 OUT1 OUT2 OUT2 OC2 OC2 TPS2042B/TPS2052B DRBPACKAGES (TOP VIEW) OC1 OUT1 OUT2 OC2 GND IN1 EN1† EN2† 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 GND IN2 EN3† EN4† OC3 OUT3 OUT4 OC4 OC1 OUT1 OUT2 OC2 GND IN1 EN1† EN2† − Noconnect NC † Allenableinputsareactivehighforthe TPS205xBseries. TPS2044B/TPS2054B D PACKAGE (TOP VIEW) TPS2043B/TPS2053B DPACKAGE (TOP VIEW) GND OUT TPS2041B/TPS2051B DBVPACKAGE (TOP VIEW) OC IN EN † 4 3 2 1 5 6 7 8 TPS2042B/TPS2052B D ANDDGNPACKAGES (TOP VIEW) DESCRIPTION TPS2041B ,, TPS2042B TPS2043B, TPS2044B, TPS2051B TPS2052B, TPS2053B, TPS2054B www.ti.com .................................................................................................................................................. SLVS514J – APRIL 2004 – REVISED DECEMBER 2008 CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES • Heavy Capacitive Loads 2 • 70-mΩ High-Side MOSFET • Short-Circuit Protections • 500-mA Continuous Current • Thermal and Short-Circuit Protection • Accurate Current Limit (0.75 A min, 1.25 A max) • Operating Range: 2.7 V to 5.5 V • 0.6-ms Typical Rise Time • Undervoltage Lockout • Deglitched Fault Report (OC) • No OC Glitch During Power Up • Maximum Standby Supply Current: 1- µA (Single, Dual) or 2-µA (Triple, Quad) • Ambient Temperature Range: -40°C to 85°C • UL Recognized, File Number E169910 • Additional UL Recognition for TPS2042B and TPS2052B for Ganged Configuration The TPS204xB/TPS205xB power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporates 70-m Ω N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. 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 device limits 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 that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1 A typically. 1 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. 2 PowerPAD is a trademark of Texas Instruments. UNLESS OTHERWISE NOTED this document contains Copyright © 2004–2008, Texas Instruments Incorporated PRODUCTION DATA information 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. |
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