L6364 datasheet(59/60 Pages) STMICROELECTRONICS

59 / 60 page

List of figures

Figure 1.

Block Diagram .................................................................... 3

Figure 2.

Package and pin-out - QFN ........................................................... 4

Figure 3.

Package and pin-out - CSP ........................................................... 4

Figure 4.

Example of Wake-up sequence timing (VCQ = green plot; ICQ = red plot; VINT = Yellow) .................. 8

Figure 5.

Figure 6.

Single byte and sequential byte accesses ................................................ 13

Figure 7.

IO-Link UART peripheral state machine .................................................. 17

Figure 8.

Single octet UART mode state diagram .................................................. 21

Figure 9.

Illustration of operation in transparent mode ............................................... 22

Figure 10.

Wake-up time diagram.............................................................. 29

Figure 11.

L6364 temperature measurement ...................................................... 33

Figure 12.

L6364 thermal shutdown configuration................................................... 34

Figure 13.

L6364 LED currents ............................................................... 35

Figure 14.

Block diagram of DC-DC converter ..................................................... 37

Figure 15.

Minimum supply voltage ............................................................ 38

Figure 16.

Overcurrent operation .............................................................. 39

Figure 17.

L6364 linear regulators' startup under different conditions of load capacitance ....................... 40

Figure 18.

Example of thermal power dissipation estimation ........................................... 41

Figure 19.

Surge waveform .................................................................. 42

Figure 20.

Detailed block diagram, showing register field connections..................................... 46

Figure 21.

Application example: DC-DC disabled, CQ and DIO coupled (Join Mode), VSENSOR = 5 V, VMCU = VDIG = 3.3 V

.............................................................................. 47

Figure 22.

Application example: DC-DC enabled, CQ and DIO coupled (Join Mode), VSENSOR = VMCU = VDIG = 5.0 V .. 47

Figure 23.

Application example: DC-DC disabled, CQ as line driver, DIO as load driver, VSENSOR = 5.0 V, VMCU = VDIG = 3.3

V ............................................................................ 48

Figure 24.

Application example: DC-DC enabled, CQ and DIO as independent line drivers, VSENSOR > 5.0 V, VMCU = VDIG =

5.0 V ......................................................................... 48

Figure 25.

QFN20L mechanical drawings ........................................................ 49

Figure 26.

QFN20L Suggested footprint ......................................................... 50

Figure 27.

QFN20L, Packing information (drawing and dimension [mm]) ................................... 50

Figure 28.

CSP19 Mechanical drawings ......................................................... 52

Figure 29.

CSP19 Suggested footprint .......................................................... 53

Figure 30.

CSP19, Packing Information (drawing and dimension [mm]) .................................... 53

L6364

List of figures

DS13363 - Rev 4

page 59/60

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