FS6407 datasheet(53/111 Pages) NXP

Part #	FS6407

Description	Power system basis chip with high speed can transceiver

PDF	111 Pages

Scroll/Zoom	100%

Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

Logo

53 / 111 page

NXP Semiconductors

FS6407/FS6408

Figure 37. Power dissipation use case

The main contributors to the device power dissipation are VPRE, VCORE, and VCCA (when used with internal PMOS) regulators. In

comparison, the power dissipation from the Internal IC, VAUX and CAN transceiver are negligible. VPRE power dissipation is mainly

induced by the loading of the regulators it is supplying, mainly VCORE, VCCA and VAUX, which are application dependant. The total

device power dissipation, depending on the variation of these three regulators, is detailed in Figure 38 with the environmental conditions

in the associated table.

Vsup = 24V and 25% of CAN traffic

use case 1: Vcore=3.3V, Icore=0.7A, Vcca with int. MOS

use case 2: Vcore=1.2V, Icore=1.4A, Vcca with ext. PNP

1) CAN transceiver dissipation includes CAN_5V regulator dissipation.

2) 25% CAN traffic means the CAN bus is dominant for 25% of time and recessive for the remaining 75%.

1.2V

FS6407 Datasheet(PDF) 53 Page - NXP Semiconductors