908E624_10 Datasheet, PDF (34/40 Pages) Freescale Semiconductor, Inc – Integrated Triple High Side Switch with Embedded MCU and LIN Serial Communicationfor Relay Drivers

TYPICAL APPLICATIONS
1
54
2
53
3
52
4
51
5
50
6
49
7
VREFH 48
8
VDDA 47
9
EVDD 46
10
EVSS 45
11
VSSA 44
12
VREFL 43
13
42
14
908E624
41
15
40
16
39
17
38
18
37
19
36
20
35
C4
21
AGND 34
22
VDD 33
23
NC 32
24
VSUP1 31
25
GND 30
26
LIN 29
27
VSUP2 28
C5
Comment:
Terminal 32 NC - used for signal routing
D1
L1
VBAT
LIN
Figure 21. PCB Layout Recommendations
.
Table 15. Component Value Recommendation
Component
Recommended Value⁽³⁷⁾
Comments / Signal routing
D1
Reverse battery protection
C1
Bulk Capacitor
C2
100 nF, SMD Ceramic
Close (<5 mm) to VSUP1, VSUP2 terminals with good ground return
C3
100 nF, SMD Ceramic
Close (<3 mm) to digital supply terminals (EVDD, EVSS) with good
ground return.
The positive analog (VREFH, VDDA) and the digital (EVDD) supply
should be connected right at the C3.
C4
4.7 μF, SMD Ceramic or Low ESR
Bulk Capacitor
C5
V1⁽³⁸⁾
L1⁽³⁸⁾
180 pF, SMD Ceramic
Varistor Type TDK AVR-M1608C270MBAAB
SMD Ferrite Bead Type TDK MMZ2012Y202B
Close (<5 mm) to LIN terminal.
Total Capacitance per LIN node has to be below 220 pF.
(C_total = C_LIN-Terminal + C5 + C_Varistor ~ 10 pF + 180 pF + 15 pF)
Optional (close to LIN connector)
Optional, (close to LIN connector)
Notes
37. Freescale does not assume liability, endorse, or want components from external manufactures that are referenced in circuit drawings
or tables. While Freescale offers component recommendations in this configuration, it is the customer’s responsibility to validate their
application.
38. Components are recommended to improve EMC and ESD performance.
908E624
34
Analog Integrated Circuit Device Data
Freescale Semiconductor