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TPS2049DR датащи(PDF) 1 Page - Texas Instruments |
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TPS2049DR датащи(HTML) 1 Page - Texas Instruments |
1 / 13 page www.ti.com FEATURES IN GND IN EN OUT OUT OUT OC DESCRIPTION TPS2049 SLVS713 – OCTOBER 2006 SINGLE-CHANNEL 100 mA POWER SWITCH • SOIC-8 Package • 100-mA Continuous Current • Ambient Temperature Range: –40 °C to 85°C • 600-m Ω High-Side MOSFET • 2 µS Response Time to Short Circuit • Thermal and Short-Circuit Protection • Operating Range: 2.7 V to 5.5 V • 0.6-ms Typical Rise Time • Undervoltage Lockout • Deglitched Fault Report (OC) • 43 µA Quiescent Supply Current • 1- µA Maximum Standby Supply Current The TPS2049 power-distribution switch is intended for applications where heavy capacitive loads and short circuits are likely to be encountered. This device incorporates a 600-m Ω N-channel MOSFET power switch for power-distribution systems that require only one power distribution path. The 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 2.7V. 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 (OC) 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. This power-distribution switch is designed to set current limit at 150mA typically. 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 © 2006, 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. |
Аналогичный номер детали - TPS2049DR |
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Аналогичное описание - TPS2049DR |
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