datasheet4u.com

900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




STMicroelectronics Electronic Components Datasheet

L9952GXP Datasheet

Power management system IC

No Preview Available !

L9952GXP pdf
L9952GXP
Power management system IC
Features
Two 5V low-drop voltage regulators (250mA,
100mA continuous mode
Low stand-by current: VBAT stby, 7µA; ,V1 stby,
45µA, (75µA in cycl. sense)
Window watchdog and fail-safe output
Interrupt output
Wake-up logic with cyclic contact monitoring
LIN 2.1 compliant (SAEJ2602 compatible)
transceiver
24 bit SPI interface for mode control and
diagnostic
Output drivers
4 High side drivers for e.g. LED or HALL
(RDSon,typ = 7 Ω )
1 High side driver Out_HS ( RDSon,typ = 1 Ω )
2 Relay drivers ( RDSon,typ = 2 Ω )
Outputs are short circuit protected
2 Op amp's for current sensing in GND return
lines
Temperature warning and thermal shutdown
PowerSSO-36
Applications
Automotive ECU’ s such as door zone and
body control modules.
Description
The L9952GXP is a power management system
IC containing two low drop regulators with
advanced contact monitoring and additional
peripheral functions.
The integrated standard serial peripheral interface
(SPI) controls all L9952GXP operation modes
and provides driver diagnostic functions.
Table 1. Device summary
Package
PowerSSO-36
Tube
L9952GXP
Order codes
Tape and reel
L9952GXPTR
July 2009
Doc ID 13518 Rev 5
1/68
www.st.com
1
Free Datasheet http://www.datasheet4u.com/


STMicroelectronics Electronic Components Datasheet

L9952GXP Datasheet

Power management system IC

No Preview Available !

L9952GXP pdf
Contents
Contents
L9952GXP
1 Pin definitions and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1 Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1.1 Voltage regulator: V1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1.2 Voltage regulator: V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2 Power control in operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2.1
2.2.2
2.2.3
2.2.4
Active mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Flash mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
V1 standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
VBAT standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3 Wake up events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.4 Functional overview (truth table) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.5 Wake up inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.6 Hall sensor ports: WU3,4, Dig_Out 3,4 . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.7 Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.8 Cyclic contact supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.9 Window – watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.10 Fail safe output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.11 Reset – generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.12 V1, V2 fail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.13 Low side driver outputs Rel1, Rel2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.14 PWM inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.15 Operational amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.16 LIN bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.17
Error handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.17.1 Dominant TxD time out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.17.2 Short to battery time out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.17.3 Short to ground mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.18
Wake up (from LIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.18.1 Normal wake up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.18.2 Wake up from short to GND condition . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2/68 Doc ID 13518 Rev 5


Part Number L9952GXP
Description Power management system IC
Maker STMicroelectronics
Total Page 30 Pages
PDF Download
L9952GXP pdf
L9952GXP Datasheet PDF
[partsNo] view html
View PDF for Mobile








Similar Datasheet

1 L9952GXP Power management system IC STMicroelectronics
STMicroelectronics
L9952GXP pdf





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy