SLVUA33A March 2014 – July 2021 TPS563900
The TPS563900EVM-574 is provided with input/output connectors and test points as shown in Table 2-1. A power supply capable of supplying 5 A must be connected to J1 through a pair of 20-AWG wires. The loads must be connected to J3 and J4 through a pair of 20-AWG wires. The maximum load current capability is 3.5 A for each output. Wire lengths must be minimized to reduce losses in the wires. Test-point TP1 provides a place to monitor the VIN input voltages with TP2 providing a convenient ground reference. TP11 is used to monitor VOUT1 with TP12 as the ground reference. TP15 is used to monitor VOUT2 with TP15 as the ground reference.
Reference Designator | Function |
---|---|
J1 | VIN input voltage connector. (See Table 1-1 for VIN range.) |
J2 | I2C interface connector. |
J3 | VOUT1, 1.0 V at 3.5 A maximum |
J4 | VOUT2, 1.1 V at 3.5 A maximum |
JP1 | MODE select. Cover JP1-2 and JP1-3 to select forced CCM mode. Leave open to select PSM pulse skipping mode for increased light-load efficiency |
JP2 | ADDR select. Normally cover JP2-2 and JP2-3. |
JP3 | Jumper to select internal LDO as I2C pull up voltage. Normally open to allow pull up voltage from the USB interface adapter. |
JP4 | 2-pin header for VOUT1 enable. Connect EN to ground to disable, open to enable. |
JP5 | 2-pin header for VOUT2 enable. Connect EN to ground to disable, open to enable. |
TP1 | VIN test point at VIN connector. |
TP2 | GND test point at VIN connector. |
TP3 | LDO output test point. |
TP4 | External I2C pull up voltage test point. |
TP5 | VOUT1 enable test point. |
TP6 | VOUT2 enable test point. |
TP7 | VOUT1 slow start test point. |
TP8 | VOUT2 slow start test point. |
TP9 | VOUT1 LX1 switching node test point. |
TP10 | Test point in VOUT1 voltage divider network. Used for loop response measurements when output voltage is set using external resistor divider network. |
TP11 | Output voltage test point at VOUT1 connector. |
TP12 | GND test point at VOUT1 connector. |
TP13 | VOUT2 LX2 switching node test point. |
TP14 | Test point in VOUT2 voltage divider network. Used for loop response measurements when output voltage is set using external resistor divider network. |
TP15 | Output voltage test point at VOUT2 connector. |
TP16 | GND test point at VOUT2 connector. |
TP17 | Analog GND test point. |
TP18 | I2C SDA test point. |
TP19 | I2C SCL test point. |