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TPS2041BQDBVRQ1 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS2041BQDBVRQ1 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 29 page 1 2 3 4 8 7 6 5 GND IN IN EN OUT OUT OUT OC TPS2051B D PACKAGE (TOP VIEW) 1 2 3 4 8 7 6 5 GND IN EN1 EN2 OC1 OUT1 OUT2 OC2 TPS2042B D PACKAGE (TOP VIEW) 1 2 3 5 4 IN EN OC GND GND OUT TPS2041B DBV PACKAGE (TOP VIEW) TPS2041B-Q1 TPS2042B-Q1 TPS2051B-Q1 www.ti.com SLVS782A – NOVEMBER 2007 – REVISED JUNE 2010 CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES Check for Samples: TPS2041B-Q1, TPS2042B-Q1, TPS2051B-Q1 1 FEATURES APPLICATIONS • Heavy Capacitive Loads • Qualified for Automotive Applications • Short-Circuit Protection • 70-m Ω High-Side MOSFET • 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 mA (Single, Dual) or 2 mA (Triple, Quad) • Bidirectional Switch • Junction Temperature Range: –40°C to 125°C • ESD Protection Level Per AEC-Q100 Classification • UL Recognized, File Number E169910 DESCRIPTION The TPS204xB/TPS205xB power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporate 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 (typ). 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. PRODUCTION DATA information is current as of publication date. Copyright © 2007–2010, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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