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TPS54160DGQR Datasheet(PDF) 5 Page - Texas Instruments |
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TPS54160DGQR Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 45 page  DEVICE INFORMATION PIN CONFIGURATION 1 2 3 4 5 6 7 9 8 10 Thermal Pad (11) BOOT VIN EN PH GND COMP VSENSE PWRGD SS/TR RT/CLK MSOP10 (TOP VIEW) TPS54160 www.ti.com ............................................................................................................................................. SLVS795A – OCTOBER 2008 – REVISED OCTOBER 2008 PIN FUNCTIONS PIN I/O DESCRIPTION NAME NO. A bootstrap capacitor is required between BOOT and PH. If the voltage on this capacitor is below the BOOT 1 O minimum required by the output device, the output is forced to switch off until the capacitor is refreshed. Error amplifier output, and input to the output switch current comparator. Connect frequency compensation COMP 8 O components to this pin. Enable pin, internal pull-up current source. Pull below 1.2V to disable. Float to enable. Adjust the input EN 3 I undervoltage lockout with two resistors. GND 9 – Ground PH 10 I The source of the internal high-side power MOSFET. POWERPAD 11 – GND pin must be electrically connected to the exposed pad on the printed circuit board for proper operation. An open drain output, asserts low if output voltage is low due to thermal shutdown, dropout, over-voltage or PWRGD 6 O EN shut down. Resistor Timing and External Clock. An internal amplifier holds this pin at a fixed voltage when using an external resistor to ground to set the switching frequency. If the pin is pulled above the PLL upper threshold, RT/CLK 5 I a mode change occurs and the pin becomes a synchronization input. The internal amplifier is disabled and the pin is a high impedance clock input to the internal PLL. If clocking edges stop, the internal amplifier is re-enabled and the mode returns to a resistor set function. Slow-start and Tracking. An external capacitor connected to this pin sets the output rise time. Since the SS/TR 4 I voltage on this pin overrides the internal reference, it can be used for tracking and sequencing. VIN 2 I Input supply voltage, 3.5 V to 60 V. VSENSE 7 I Inverting node of the transconductance ( gm) error amplifier. Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): TPS54160 |
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