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FS6407 Fiches technique(PDF) 41 Page - NXP Semiconductors

No de pièce FS6407
Description  Power system basis chip with high speed can transceiver
PDF  111 Pages
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Fabricant  NXP [NXP Semiconductors]
Site Internet  http://www.nxp.com
Logo NXP - NXP Semiconductors

FS6407 Fiches technique(HTML) 41 Page - NXP Semiconductors

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FS6407/FS6408
6.6
Input voltage range
Due to the flexibility of the pre-regulator, the device can cover a wide battery input voltage range. However, a more standard voltage range
can still be covered using only the Buck configuration.
Figure 22. Input voltage range
• Thermal dissipation must be checked based on application use case to maintain junction temperature (TJ) <150 °C
• Buck only, VSUP < VSUP_UV_7:
CAN communication is guaranteed for VSUP > 6.0 V.
For VCCA and VAUX 5.0 V configuration, undervoltage triggers at low VSUP (refer to VCCA_UV_5 and VAUX_UV_5).
6.7
Power management operation
A thermal sensor is implemented as close as possible to the pass transistor of each regulator (VPRE, VCORE, VCCA, VCAN) and an
associated individual thermal shutdown (TSD) protect these regulators independently. When the TSD threshold of a specific regulator is
reached, this regulator only is switched OFF and the information is reported in the main state machine. The regulator restarts automatically
when the junction temperature of the pass transistor decrease below the TSD threshold.
VSUP
No operation
Extended voltage range
VPRE output current limitation
2.7 V
VSUP_UV_7
36 V
40 V
Normal voltage range
Extended voltage range
Potential VPRE thermal limitation
No operation
Risk of damage
No operation
Normal voltage range
Extended voltage range
VPRE output current limitation
Extended voltage range
Potential VPRE thermal limitation
No operation
Risk of damage
Buck-Boost
Buck only
4.6 V
6.0 V



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