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TPS62404 Fiches technique(PDF) 5 Page - Texas Instruments |
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TPS62404 Fiches technique(HTML) 5 Page - Texas Instruments |
5 / 43 page DEF_1 FB1 MODE/DATA VIN EN1 SW2 ADJ2 GND EN2 Po w er PA D SW1 1 2 3 4 5 10 9 8 7 6 TopviewDRCpackage TPS62400, TPS62401 TPS62402, TPS62403, TPS62404 www.ti.com SLVS681E – JUNE 2006 – REVISED APRIL 2010 PIN ASSIGNMENTS TERMINAL FUNCTIONS TERMINAL I/O DESCRIPTION NO. NAME (QFN) Input to adjust output voltage of converter 2. In adjustable version (TPS62400) connect a external resistor divider between VOUT2, this pin and GND to set output voltage between 0.6V and VIN. At fixed output ADJ2 1 I voltage version (TPS62401) this pin MUST be directly connected to the output. If EasyScale Interface is used for converter 2, this pin must be directly connected to the output, too. This Pin has 2 functions: 1. Operation Mode selection: With low level, Power Save Mode is enabled where the device operates in PFM mode at light loads and enters automatically PWM mode at heavy loads. Pulling this PIN to high forces the device to operate in PWM mode over the whole load range. MODE/DATA 2 I/0 2. EasyScale™ Interface function: One wire serial interface to change the output voltage of both converters. The pin has an open drain output to provide an acknowledge condition if requested. The current into the open drain output stage may not exceed 500mA. The interface is active if either EN1 or EN2 is high. VIN 3 Supply voltage, connect to VBAT, 2.5V to 6V Direct feedback voltage sense input of converter 1, connect directly to Vout 1. An internal feed forward FB1 4 I capacitor is connected between this pin and the error amplifier. In case of fixed output voltage versions or when the Interface is used, this pin is connected to an internal resistor divider network. This pin defines the output voltage of converter 1. The pin acts either as analog input for output voltage setting via external resistors (TPS62400), or digital input to select between two fixed default output voltages (TPS62401, TPS62402, TPS62403). For the TPS62400, an external resistor network needs to be connected to this pin to adjust the default DEF_1 5 I output voltage. Using the fixed output voltage device options this pin selects between two fixed default output voltages, see table ordering information SW1 6 I/O Switch Pin of Converter1. Connect to Inductor EN1 7 I Enable Input for Converter1, active high GND 8 GND for both converters; connect this pin to the PowerPAD™ EN2 9 I Enable Input for Converter 2, active high SW2 10 I/O Switch Pin of Converter 2. Connect to Inductor. PowerPAD™ Connect to GND Copyright © 2006–2010, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): TPS62400 TPS62401 TPS62402 TPS62403 TPS62404 |
Numéro de pièce similaire - TPS62404 |
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Description similaire - TPS62404 |
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