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L5958SMTR

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
L5958 Pin description
Doc ID 17716 Rev 2 7/20
Table 2. Pin description
Pin N# Pin name Function Type
1TAB
2 REG6(1P8P) Output of Reg6 (1.8 V/100 mA) O
3 RES Reset signal for MCU application O
4BU1
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.
I/O
5 CRES Connect a capacitor to delay reset signal O
6 REG5(3P3P) Output of Reg5 (3.3 V/100 mA) O
7 GND Power supply ground S
8 SW Output of power switch O
9 EN_SW Enable signal for SW I
10 AUDIO_LOW_IN Hold Audio Low threshold adjustment I
11 VDDCORE Warn signal to 3.3 Vsw or 1. 8Vsw O
12 VIN1 Power supply for Reg1,Reg2,Reg5,Reg6 and SW S
13 CAN_LOW_IN Hold CAN Low threshold adjustment I
14 AUDIO_HIGH_OUT Hold Audio High signal for MCU application O
15 AUDIO_LOW_OUT Hold Audio Low signal for MCU application O
16 REG2(5V) Output of Reg2 O
17 CAN_PRETEMP
Hold can low signal or hold can high signal with
load dump detection or pretemp warning
O
18 REG1(8P5) Output of Reg1 O
19 EN_8P5_5 Enable signal for 5 V and 8.5 V I
20 REG4(1P8sw) Output of Reg4 (1.8 V/350 mA) O
21 IGNOUT Ignition signal output O
22 VIN2 Power supply for Reg3 and Reg4 S
23 IGNIN Ignition signal input I
24 REG3((3P3sw) Output of Reg3 (3.3 V / 250 mA) O
25 EN_3P3_1P8
Enable signal for 3.3 Vperm and 1.8 Vperm.
A resistor of 1 k in series to this control pin is
suggested.
I
26 BU2
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.
I/O
27 EN_3P3sw_1P8sw Enable signal for 3.3 V and 1.8 V I
Electrical specifications L5958
8/20 Doc ID 17716 Rev 2
3 Electrical specifications
3.1 Absolute maximum ratings
3.2 Thermal data
3.3 Electrical characteristics
V
S
= 14.4 V; T
amb
= 25 °C; unless otherwise specified
Table 3. Absolute maximum ratings
Symbol Parameter Value Unit
V
SDC
DC operating supply voltage 30 V
V
STR
Transient supply voltage 50 V
I
O
Output current internally limited
T
op
Operating temperature range -40 to 105 °C
T
stg
Storage temperature -55 to 150 °C
T
j
Junction temperature -55 to 150 °C
V
pinMIN
Minimum pin voltage (EN_SW, AUDIO_LOW_IN,
CAN_LOW_IN, EN_8P5_5, IGNIN, EN_3P3_1P8,
EN_3P3sw_1P8sw)
-0.3 V
Table 4. Thermal data
Symbol Parameter Value Unit
R
th j-case
Thermal resistance junction-to-case Max. 1.0 °C/W
Table 5. Electrical characteristics
Symbol Parameter Test condition Min. Typ. Max. Unit
Input supplies
V
in1
Input supply voltage 1 Operating 9 - 18 V
V
in2
Input supply voltage 2 Operating 4.5 - 18 V
V
in1
Input supply voltage 1 Reverse polarity - not operating -
V
in2
Input supply voltage 2 Reverse polarity - not operating -
I
q
Total quiescent current
Standby (-40 °C to 85 °C)
Perm reg on
- 50 100 µA
Standby (25 °C) Perm reg off - 4 10 µA
Standby (-40 °C to 85 °C)
Perm reg off
- 4 30 µA
L5958 Electrical specifications
Doc ID 17716 Rev 2 9/20
Load dump
V
in1
Battery over voltage V
in1
24 26 28 V
Load dump
V
in2
Battery over voltage V
in2
24 26 28 V
Regulator 1
V
o (8.5sw)
Output voltage 8.5V - 8.0 8.5 8.9 V
V Line regulation I = 20 0mA; 9 V < Vs < 18 V - - 50 mV
V
i
Load regulation I
reg1
= 1 to 20 0mA - - 100 mV
PSRR Supply voltage ripple rejection
f = 1 kHz; V
in1
= 1.5 Vpp;
I
o
= 200 mA
45 - - dB
V
drop
Drop out voltage I
reg1
= 200 mA
(1)
- - 0.35 V
I
m
Current limit R
short
= 0.5 0.3 - 0.6 A
Regulator 2
V
o (5Vsw)
Output voltage 5V - 4.75 5 5.25 V
V Line regulation I = 300 mA; 9 V < Vs < 18 V - - 50 mV
V
i
Load regulation I
reg2
= 1 to 300 mA - - 100 mV
PSRR Supply voltage ripple rejection
f = 1 kHz; V
in1
= 1.5 Vpp;
I
o
= 300 mA
50 - - dB
V
drop
Drop out voltage I
reg2
= 300 mA
(1)
- - 0.45 V
I
m
Current limit R
short
= 0.5 400 - 800 mA
Regulator 3
V
o (3.3sw)
Output voltage 3.3V - 3.15 3.30 3.45 V
V Line regulation I = 250 mA; 4.5 V < Vs < 18 V - - 50 mV
V
i
Load regulation I
reg3
= 1 to 250 mA - - 100 mV
PSRR Supply voltage ripple rejection
f = 1 kHz; V
in1
= 1.5 Vpp;
I
o
= 250 mA
50 - - dB
V
drop
Drop out voltage I
reg3
= 250 mA
(1)
- - 0.75 V
I
m
Current limit R
short
= 0.5 400 - 800 mA
Regulator 4
V
o (1.8sw)
Output voltage 1.8V - 1.73 1.80 1.90 V
V Line regulation I = 350 mA; 4.5 V< Vs < 18 V - - 50 mV
V
i
Load regulation I
reg4
= 1 to 350 mA - - 100 mV
PSRR Supply voltage ripple rejection
f = 1 kHz; V
in1
= 1.5 Vpp;
I
o
= 350 mA
50 - - dB
V
drop
Drop out voltage I
reg4
= 35 0mA
(1)
- - 2.2 V
I
m
Current limit R
short
= 0.5 430 - 800 mA
Table 5. Electrical characteristics (continued)
Symbol Parameter Test condition Min. Typ. Max. Unit
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

L5958SMTR

Mfr. #:
Buy L5958SMTR
Manufacturer:
STMicroelectronics
Description:
LDO Voltage Regulators Multifunction Voltage Regulator
Lifecycle:
New from this manufacturer.
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