L5958SM データシートの表示（PDF） - STMicroelectronics
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L5958SM Datasheet PDF : 20 Pages
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Electrical specifications
L5958
3.4
Application diagram
Figure 3. Application circuit
0.1µF
VIN1
+
-
1000µF
VIN2
1000µF
0.1µF
R1
R3
R4
R2
CAN_LOW_IN
13
AUDIO_LOW_IN
10
EN_SW
9
EN_8P5_5
19
1kΩ
EN_3P3_1P8
25
EN_3P3SW_1P8SW
IGNIN
IGNOUT
27
REG 3P3P
23
10k
21
BU1
4
BU2
26
CRES
5
47nF 1000µF
1000µF
12
22
20
10µF
24
10µF
2
10µF
6
10µF
18
10µF
16
10µF
11
8
14
15
17
3
7
1
GND
TAB
15pF
REG4_1P8SW
REG3_3P3SW
REG6_1P8P
REG5_3P3P
REG1_8P5
REG2_5V
10k
VDDCORE
10k
10k
10k
10k
SW
AUDIO_HIGH_OUT
AUDIO_LOW_OUT
CAN_PRETEMP
RES
AC00567
Recommended output filtering capacitors for all the regulators: C range = 5 µF to 100 µF,
ESR range = 50 mΩ to 10 Ω (T= -40 °C to +85 °C)
The detection voltage thresholds (for both the battery warning 1 and 2) can be changed
lower with external resistors, as following:
VTH1(hold_can) = 1.25V (R3 + R4)/ R4
VTH2(hold_audio) = 1.25V (R1 + R2)/R2
12/20
Doc ID 17716 Rev 1
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