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TPS2551 Datasheet(PDF) 5 Page - Texas Instruments |
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TPS2551 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 31 page DEVICE INFORMATION Charge Pump Driver UVLO Current Limit Thermal Sense IN GND EN ILIM OUT FAULT CS Reverse Voltage Comparator - + Current Sense 8-msDeglitch TPS2550 TPS2551 www.ti.com .................................................................................................................................................... SLVS736A – FEBRUARY 2008 – REVISED JULY 2008 Terminal Functions TERMINAL I/O DESCRIPTION NAME TPS2550DBV TPS2551DBV TPS2550DRV TPS2551DRV EN 3 – 4 – I Enable input, logic low turns on power switch EN – 3 – 4 I Enable input, logic high turns on power switch GND 2 2 5 5 Ground connection; should be connected externally to POWER PAD IN 1 1 6 6 I Input voltage; connect a 0.1 µF or greater ceramic capacitor from IN to GND as close to the IC as possible. FAULT 4 4 3 3 O Active-low open-drain output, asserted during overcurrent, overtemperature, or reverse-voltage conditions. OUT 6 6 1 1 O Power-switch output ILIM 5 5 2 2 I External resistor used to set current-limit threshold; recommended 14.3 k Ω ≤ RILIM ≤ 80.6 k Ω. Internally connected to GND; used to heat-sink PowerPAD – – PAD PAD the part to the circuit board traces. Should be ™ connected to GND pin. FUNCTIONAL BLOCK DIAGRAM Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): TPS2550 TPS2551 |
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