L5958 STMICROELECTRONICS [STMicroelectronics], L5958 Datasheet - Page 7

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

L5958
Table 2.
Pin N#
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
1
2
3
4
5
6
7
8
9
Pin description
AUDIO_HIGH_OUT
AUDIO_LOW_OUT
EN_3P3sw_1P8sw
AUDIO_LOW_IN
CAN_PRETEMP
REG3((3P3sw)
CAN_LOW_IN
REG4(1P8sw)
EN_3P3_1P8
REG6(1P8P)
REG5(3P3P)
REG1(8P5)
VDDCORE
EN_8P5_5
REG2(5V)
Pin name
IGNOUT
EN_SW
CRES
IGNIN
GND
VIN1
VIN2
RES
TAB
BU1
BU2
SW
Doc ID 17716 Rev 1
Output of Reg6 (1.8 V/100 mA)
Reset signal for MCU application
Connect to a reserve capacitor. When battery is
removed suddenly, the energy stored in this
capacitor can still supply reg5 and reg6 for some
time.
Connect a capacitor to delay reset signal
Output of Reg5 (3.3 V/100 mA)
Power supply ground
Output of power switch
Enable signal for SW
Hold Audio Low threshold adjustment
Warn signal to 3.3 Vsw or 1. 8Vsw
Power supply for Reg1,Reg2,Reg5,Reg6 and SW
Hold CAN Low threshold adjustment
Hold Audio High signal for MCU application
Hold Audio Low signal for MCU application
Output of Reg2
Hold can low signal or hold can high signal with
load dump detection or pretemp warning
Output of Reg1
Enable signal for 5 V and 8.5 V
Output of Reg4 (1.8 V/350 mA)
Ignition signal output
Power supply for Reg3 and Reg4
Ignition signal input
Output of Reg3 (3.3 V / 250 mA)
Enable signal for 3.3 Vperm and 1.8 Vperm.
A resistor of 1 kΩ in series to this control pin is
suggested.
Connect to a reserve capacitor. When battery is
removed suddenly, the energy stored in this
capacitor can still supply reg3 and reg4 for some
time.
Enable signal for 3.3 V and 1.8 V
Function
Pin description
Type
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
S
S
S
7/20
I
I
I
I
I
I
I