L9952GXP Datasheet, PDF (1/68 Pages) STMicroelectronics – Power management system IC

L9952GXP
Power management system IC
Features
■ Two 5V low-drop voltage regulators (250mA,
100mA continuous mode
■ Low stand-by current: V_BAT 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
(R_DSon,typ = 7 Ω )
■ 1 High side driver Out_HS ( R_DSon,typ = 1 Ω )
■ 2 Relay drivers ( R_DSon,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
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