L99PM60S
Power management system IC
Features
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One 5 V low-drop voltage regulators (100 mA,
continuous mode)
Low standby current: V
BAT
-standby, 7 µA;
V
1
-standby, 45 µA
Window watchdog and fail-safe functionality
Configurable fail safe output
Programmable reset threshold (4.6 V, 3.5 V)
VS monitoring / temperature measurement
LIN 2.1 compliant (SAEJ2602 compatible)
transceiver
High-speed LIN Flash mode up to 100 kbit/s
ST SPI interface for mode control and
diagnostic
2 high-side drivers for e.g. LED or HALL
(R
DSon,typ
= 7
Ω
)
2 relay drivers ( R
DSon,typ
= 2
Ω
)
Outputs are short-circuit protected
Direct drive feature for high-sides
Temperature warning and thermal shutdown
PowerSSO-16
SO-16
Applications
■
Automotive ECU such as door zone and body
control modules.
Description
The L99PM60S is a power management system
IC containing one low-drop regulator direct drive
feature for high-side drivers and LIN 2.1 compliant
SAEJ602 transceiver.
The integrated standard serial peripheral interface
(SPI) controls all L99PM60S operation modes
and provides driver diagnostic functions.
Table 1.
Device summary
Order codes
Package
Tube
SO-16
PowerSSO-16
L99PM60S
L99PM60J
Tape and reel
L99PM60STR
L99PM60JTR
July 2009
Doc ID 15944 Rev 1
1/6
www.st.com
1
Contents
L99PM60S
Contents
1
2
3
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin definitions and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2/6
Doc ID 15944 Rev 1
Pin definitions and functions
L99PM60S
2
Pin definitions and functions
Table 2.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pins definitions and functions
Symbol
GND
NRESET
DO
DI
V
1
CLK
RXD/NINT
DRV/VSM/TMP
CSN
OUT2
OUT1/FSO
TXD
V
S
REL1
REL2
LIN
Ground
NRESET output to microcontroller; internal pull-up of typ. 100 KΩ
(reset state = low)
SPI: serial data output
SPI: serial data input
Voltage regulator 1 output: 5 V supply e.g. microcontroller
SPI: serial clock input
Receiver output of the LIN 2.1 transceiver or interrupt:
Direct drive for high-side drivers OUT1/OUT2; V
S
and temperature
monitoring
SPI: chip select not input
High-side drivers (7
Ω,
typ.) : to supply e.g. LED's, HALL sensors,
external contacts
High-side driver (7
Ω,
typ.) : to supply e.g. LED's, HALL sensors, external
contacts. Default configuration is Fail Safe output.
Transmitter input of the LIN 2.1 transceiver
Power supply voltage
Low-side driver (2
Ω
typ.): e.g. relay
Low-side driver (2
Ω
typ.): e.g. relay
LIN bus line
Function
Figure 2.
Pins configuration
GND
NRESET
DO
DI
V1
CLK
RXD/NINT
DRV/VSM/TMP
LIN
REL2
SO -16
or
PowerSSO -16
REL1
Vs
TXD
OUT1/FSO
OUT2
CSN
4/6
Doc ID 15944 Rev 1
MCU
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