L5958 STMICROELECTRONICS [STMicroelectronics], L5958 Datasheet - Page 12

• Manufacturer Part Number: L5958
• Description: Multifunction voltage regulator for car radio
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Electrical specifications
3.4
12/20
Application diagram
Figure 3.
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:
EN_3P3SW_1P8SW
AUDIO_LOW_IN
CRES
CAN_LOW_IN
EN_3P3_1P8
Application circuit
EN_8P5_5
IGNOUT
EN_SW
47nF
IGNIN
R1
R2
BU1
BU2
1000µF
R3
1kΩ
R4
REG 3P3P
0.1µF
10k
1000µF
V
V
TH2(hold_audio)
13
10
19
25
27
23
21
26
TH1(hold_can)
9
4
5
Doc ID 17716 Rev 1
1000µF
12
VIN1
GND
+
-
7
= 1.25V (R3 + R4)/ R4
VIN2
+
-
= 1.25V (R1 + R2)/R2
TAB
22
1
1000µF
20
24
18
16
11
14
15
17
2
6
8
3
10µF
10µF
10µF
10µF
10µF
10µF
0.1µF
15pF
10k
10k
10k
10k
10k
REG4_1P8SW
REG3_3P3SW
REG6_1P8P
REG5_3P3P
REG1_8P5
REG2_5V
VDDCORE
SW
AUDIO_HIGH_OUT
AUDIO_LOW_OUT
CAN_PRETEMP
RES
AC00567
L5958