6
Jumpers and connectors
Table 2.
Jumpers
Name
Description
Type
J1
Expansion connector (Enable signal, Reset signals,
Watchdog)
Multi-pin connector
J2
Main battery positive connector (VB)
Terminal
J3
VADC GND connector
Terminal
J4
Watchdog disable
Solder jumper:
Closed (default) = Watchdog disabled
Open = Watchdog enabled
J5
VADC positive connector
Terminal
J6
VDD1 positive connector
Terminal
J7
VDD1 GND connector
Terminal
J8
Main battery GND connector
Terminal
J9
VDD2 GND connector
Terminal
J10
VDD2 positive connector
Terminal
Table 3.
Expansion connector
Pin
Description
1
ADCMON: VADC monitor flag (reset)
2
RSTN1: VDD1 monitor flag (reset)
3
RSTN2: VDD2 monitor flag (reset)
4
WAKE_EXT : Wake-up pin (to be > 3.25 V to enable power supply)
5
WDO: Watchdog output (output is driven low
in case of watchdog fault)
6
STBY: Standby input (The state can be entered by ACTIVE state by rising STBY pin. Depending on the
active VDD regulators (i.e. the regulators which have not been disabled in the application), the low power
mode is managed in a different way). Please refer to L9001 Datasheet for further information
7
WDI: Windows watchdog input. Please refer to L9001 Datasheet for further information
8
TWN: Thermal warning flag output
9
GND : Ground
UM2598
Jumpers and connectors
UM2598
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Rev 1
page 8/15