NXP Semiconductors KITFS85SKTEVM, Руководство пользователя, Страница: 4 / 50

NXP Semiconductors
UM11183
KITFS85SKTEVM evaluation board
UM11183 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2019. All rights reserved.
User guide Rev. 2.0 — 20 February 2019
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generates the OTP programming voltage (8.0 V) without any need for an external power
supply.
4.1.1 KITFS85SKTEVM features
• VBAT power supply connectors (Jack and Phoenix)
• VPRE output capability up to 1.0 A (socket limit)
•
VBUCK1/2 in Standalone (default) or Multiphase mode
• VBUCK3
• VBOOST 5.0 V or 5.74 V
• LDO1 and LDO2, from 1.1 V to 5.0 V
•
Ignition key switch
• FS0B external safety pin
• Embedded USB connection for easy connection to software GUI (access to SPI/I2C
bus, IOs, RSTB, FS0B, INTB, Debug, MUX_OUT, regulators)
• LEDs that indicate signal or regulator status
•
Support OTP fuse capabilities
• USB connection for register access, OTP emulation and programming
• Voltage monitoring jumper setting
Note:
Due to the socket, all current capabilities are limited to 1.0 A.
4.1.2 VMON board configuration
The VMONx configuration is highly dependent on the use case. This kit is delivered with
a default configuration shown in Figure 2 .
This configuration supports the following mapping:
• VPRE, assigned to VMON1; Bridge resistor set for 3.3 V
• BUCK2, assigned to VMON2; Bridge resistor set for 1.8 V
• BUCK3, assigned to VMON3; Bridge resistor set for 3.3 V
• LDO1, assigned to VMON4; Bridge resistor set for 3.3 V
• LDO2, assigned to VMON4; Bridge resistor set for 5.0 V
LDO1 and LDO2 use the same VMON, a reassignement is necessary to monitor both.
Due to the jumpers, VMONx can be tied to a 0.8 V to force a good voltage at pin level.
This behaves like hardware disabling and makes debug easy in some cases.