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NXP Semiconductors
4.4.2 V1, V2, V3 connectors (J12/J5/J7)
For FS2300, HVLDO1 can be configured to 3.3 V or 5.0 V, up to 100 mA with internal PMOS and up to 250 mA
with external PNP.
HVLDO2 can be configured to 3.3 V or 5.0 V, up to 100 mA current capability.
HVLDO3 is either CAN FD block supply or can be configured to 3.3 V or 5.0 V, up to 150 mA current capability.
Table 4. V1, V2, V3 connectors (J12/J15)
Schematic label
J12-1
J12-2
J5-1
J5-2
J7-1
J7-2
4.4.3 V2 optional diode bypass (R5)
HVLDO2 has an optional protection diode against short to battery. A 0 ohm resistor R5 ON allows the user to
bypass the protection diode. R5 is ON by default.
Table 5. V2 optional diode bypass (J5)
Schematic label
R5-ON
R5-OFF
4.4.4 HVLDO1 PNP configuration (R4/R6/R7/R8)
HVLDO1 can be configured with or without PNP.
V1_E (Pin 34) and V1_B (Pin 32) are either connected to:
• V1_IN if HVLDO1 configured without external PNP
• PNP_E and PNP_B if HVLDO1 configured with external PNP
Table 6. HVLDO1 PNP configuration (R4/R6/R7/R8)
Schematic label
Signal name
R6-ON/R7-OFF
V1_IN
R6-OFF/R7-ON
PNP_E
R4-ON/R8-OFF
V1_IN
R4-OFF/R8-ON
PNP_B
4.4.5 MCU power supply selection (J36/J37/J35)
The MCU can be supplied by 3.3 V or 5.0 V.
The green LED D21 turns ON when the MCU is supplied by VDD_MCU. The MCU can be reset by pressing
SW16.
UM11879
User manual
Signal name
V1
GND
V2_FB
GND
V3
GND
Description
V2 protection diode is bypassed (local).
V2 is protected against short to battery by an external diode (global).
Description
V1_E is connected to V1_IN for HVLDO1 configuration without external PNP.
V1_E is connected to PNP_E for HVLDO1 configuration with external PNP.
V1_B is connected to V1_IN for HVLDO1 configuration without external PNP.
V1_B is connected to PNP_B for HVLDO1 configuration with external PNP.
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 25 September 2023
Description
V1 output power supply.
Ground.
V2 output power supply.
Ground.
V3 output power supply.
Ground.
UM11879
KITFS23LDOEVM evaluation board
© 2023 NXP B.V. All rights reserved.
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