Texas Instruments TPS630702EVM, Руководство пользователя

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Introduction
3 SLVUBR1 – August 2019
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Copyright © 2019, Texas Instruments Incorporated
TPS630702EVM User's Guide
1.2 Performance Specification
Table 1 provides a summary of the TPS630702EVM performance specifications. All specifications are
given for an ambient temperature of 25°C.
Table 1. Performance Specification Summary
Specification Test Conditions Min Typ Max Unit
Input voltage 2 16 V
Output voltage 2.5 5 9 V
Output current
during operation V
IN
≥ 4.5 V 0 2000 mA
during operation V
OUT
≥ 4.5 and boost factor
(V
OUT
/V
IN
) ≤ 1
0 2000 mA
Operating frequency 2400 kHz
1.3 Modifications
The printed-circuit board (PCB) for this EVM is designed to accommodate both the fixed and adjustable
versions of this IC. If the fixed version is installed, R1 and R3 are replaced with a 0-
Ω resistor and R2 is
open. Extra positions are available for additional input and output capacitors.
1.3.1 Adjustable-Output IC U1 Operation
U1 is configured for evaluation of the adjustable-output version. This unit is set to 5 V. Resistors R1, R2
and R3 can be used to set the output voltage between 2 V and 9 V. See the data sheet for recommended
values.
1.3.2 Fixed-Output Operation
U1 can be replaced with the fixed version for evaluation. With the fixed version, R1 and R3 need to be
replaced with a 0-
Ω resistor; R2 position is open.
2 Setup
This section describes how to properly use the TPS630702EVM.
2.1 Input/Output Connector and Header Descriptions
2.1.1 J1, Pin 1 and 2 – VIN
Positive input connection from the input supply for the EVM.
2.1.2 J1, Pin 3 and 4 – S+/S-
Input voltage sense connections. Measure the input voltage at this point.
2.1.3 J1, Pin 5 and 6 – GND
V
IN
GND return connection from the input supply for the EVM, common with J2, pin 5 and 6.
2.1.4 J2, Pin 1 and 2 – VOUT
Output voltage connection.
2.1.5 J2, Pin 3 and 4 – S+/S-
V
OUT
Sense and GND Sense low-current sense lines for sampling the output voltage at the output
capacitor.