6XS SO\ 9R OWDJ H ³9 %$7´
6V to 24V
Pola rity protected
and EMC filtered
Sup ply Vo ltag e
³96 83 ´
VBA T Sou rce
Sele ction Jumper
Dual LDO
Lau nch Pad
3.3V & 5V
Isol atio n
Jumpers
TCA N455 0
V
CC OU T
Dual LDO Enable
(Conne cted to INH or
always Pu lled Hig h)
Power Sup ply LE D
Indicato rs
Hardware description
4
SLLU216 – July 2019
Copyright © 2019, Texas Instruments Incorporated
SPI to CAN FD SBC + LIN Transceiver BoosterPack User's Guide
2.1
Power
The following sections describe the power supply components and features.
Figure 2. Power components and features
2.1.1
BoosterPack supply voltage
This BoosterPack requires an external Supply Voltage to be provided in the range of 6 V to 24 V and
cannot be powered exclusively through the 3.3 V and 5 V supplies of the LaunchPad. CAN and LIN
transceivers are commonly found in automotive applications and operate across a wide recommended
supply voltage range corresponding to a vehicle battery. This supply voltage is used directly by the
transceivers and converted down on the board to supply the digital voltage for the lower voltage digital
devices which are typically
≤
5 V. The TCAN4550-Q1 operates across a range of 6 V to 24 V with an
absolute maximum voltage of 40 V, the TLIN2029-Q1 operates across a range of 4 V to 48 V with an
absolute maximum voltage of 60 V, and the TPS7B7702-Q1 operates across a range of 4.5 V to 40 V with
an absolute maximum voltage of 45 V. Since all three of these devices share this same supply, the
voltage must be within all device limits for proper operation and is recommended to be in the range 6 V to
24 V.
