Power and Electrical

Kria KV260 Vision AI Starter Kit Data Sheet (DS986)

Document ID
Release Date
1.2 English

This section describes the power requirements, power-on sequence, power-on reset sequence, and power management functions.

Table 1. KV260 Starter Kit Power Specifications
Parameter Description
DC input power +12V, 3A
Recommended power adapter The CUI Inc. SMI36-12-V-P6 adapter connected using a center-pin positive barrel connector (2.5 mm ID, 5.5 mm OD)
SOM supply +5V, 3A (VCC_SOM)
SOM power telemetry Current sense device (INA260) is available through the I2C bus address 0x40 to monitor the current on the VCC_SOM power rail. Refer to the Kria KV260 Vision AI Starter Kit User Guide (UG1089) for the platformstats application that is provided in the AMD pre-built images to read this information.
USB 3.0 5V, 900 mA per port (limited to 2.1A total)
Pmod interface from Digilent Inc. 3.3V, 100 mA
Raspberry Pi camera interface 3.3V
ON Semiconductor IAS module connector 0 2.75V, 1.8V, 1.2V
ON Semiconductor IAS module connector 1 2.75V, 1.8V, 1.2V

KV260 Starter Kit Power On Sequence

  1. External power adapter supplies 12V power
  2. On-board regulator generates 5V supply and provides power to other voltage regulators
  3. SOM power rail (VCC_SOM) is powered by a 5V supply
  4. When the 5V regulator output voltage level is within the specified range and a power-good signal is asserted and the POWER_OFF_C2M_L signal is deasserted by the carrier card
  5. SOM on board power on sequencing starts
  6. Carrier card provides PS and PL VCCO voltage rails after the SOM asserts the VCCOEN_PS_M2C and VCCOEN_PL_M2C signals

KV260 Starter Kit Power On Reset

  1. The SOM reset signal (PS_POR_L) is held in reset until the PS_PGOOD signal is asserted.
  2. To perform a hard reset on the SOM, use the reset push-button on the carrier card to assert the PS_POR_L signal.
  3. All the PS and PL I/O device reset signals on the carrier card are held in reset until 25 ms after the PS and PL power domain are powered up and stable.