L5961PD STMICROELECTRONICS [STMicroelectronics], L5961PD Datasheet - Page 3

• Manufacturer Part Number: L5961PD
• Description: MOST power management device (PMD)
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

L5961
2
Functionality details
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Provides three basic states:
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Reacts on four different wake-up events
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I
Generation of switch to power pulse (STPP)
Online battery monitoring, reacts on battery changes/ events:
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Hardware watchdog triggered with discrete input, available to monitor the activity of the
controller
Fail-safe behavior:
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Diagnostic transceiver compatible to standard LIN2.0
2
C interface (allowing system programmability)
Zero power mode
All external HW is switched off. PM-chip is switched Off except "REG1 voltage
regulator", "Switch-to-power-pulse comparator" and "Control logic".
Ultra zero power mode
All external HW is switched off. PM-chip is switched Off except "ON/OFF Control
logic". PMD can be woken up to reach "Zero current mode" by activities on
DIAG_I/O line
Normal
PMD and external HW is powered. One of the four possible wake-up conditions
occurs and the wake-up event is confirmed either by means of PWROFF pin or
I
To confirm the on-event:
- PWROFF pin must be driven low OR
- the right I
Switch to power pulse (STPP)
Light ON (for status)
Activity on Diag_I/O
ON/OFF switch
Over voltage
Critical voltage
Under voltage
Intrinsic filtering time of wake-up events
Protection against software caused failures
Over-temperature warning / thermal protection
2
C bus.
2
C bus command is provided.
Functionality details
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