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STMicroelectronics Electronic Components Datasheet

L5961 Datasheet

MOST power management device

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L5961 pdf
L5961
MOST power management device (PMD)
Data Brief
Features
5V or 3.3V / 650mA DC-DC Converter with
external sync
5V or 3.3V/ 40mA standby voltage regulator
5V or 3.3V / 60mA switchable voltage regulator
Very low quiescent current (zero power mode
and ultra zero power mode feature)
Power management fully compatible to MOST
specification
Provides power supply for physical layer and
control unit
Switch to power pulse generator
Reacts on four different wake-up events
– Switch to power pulse (STPP)
– Light ON (for status)
– Activity on Diagnostic_I/O
– ON/OFF switch
I2C interface
Programmable system configuration
Reset generator
Intrinsic diagnostic transceiver
www.DataShee(ts4tUa.ncodmard LIN2.0)
3 battery detectors for battery voltage
monitoring
Watchdog circuit
PowerSS0-36 and PowerSO-36 packages
options
Description
The L5961 MOST PMD integrates all the discrete
circuitry usually necessary to implement power
supplies and power management for a MOST
node. It includes intrinsic MOST specific power
management together with sophisticated
diagnostic and fail-safe functions. The MOST
PMD is designed to provide direct power supply
PowerSO-36
PowerSSO-36
for the physical layer, the Network Controller and
the External Host Controller of a MOST Node.
The L5961 also allows the implementation of a
generic MOST node design that can be
reproduced "as is" in any other project, thus
avoiding the activities of redesign and re-
verification of MOST PMD compliance
The L5961 implements complete monitoring of
the supply voltage (over-voltage, under-voltage,
critical voltage), moreover it supports multiple
power modes like Zeropower-mode (where one
complete MOST node sinks around 25µA current)
and Ultra-zero power mode (5µA). All the
diagnostic protocols from major carmakers are
supported and the device reacts to many different
wake-up events.
The L5961 is completely configurable through its
I2C bus and fully compatible with MOST
specifications.
L5961 has been specified in cooperation with
SMSC and represents a "chipset" solution when
used with SMSC's MOST network interface
controllers (INIC or NIC).
Table 1. Device summary
Order code
Package
L5961
PowerSSO-36
L5961PD
PowerSO-36
Packing
Tube
Tube
January 2008
Rev 1
For further information contact your local STMicroelectronics sales office.
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www.st.com
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STMicroelectronics Electronic Components Datasheet

L5961 Datasheet

MOST power management device

No Preview Available !

L5961 pdf
Block and application diagram example (with INIC)
L5961
1 Block and application diagram example (with INIC)
Figure 1. Block and application example (with INIC)
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RxD
TxD
PWROFF
INTN
AD
SDA
SCL
GNDSUB
TAB
GND
ON-switch
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Part Number L5961
Description MOST power management device
Maker STMicroelectronics
Total Page 7 Pages
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