Vansco VMM3120, User Manual

Page: 39 / 92

User Guide 29
Outputs

When a high-side output is used as an on/off signal, the output provides
battery voltage when in the on state (the application software is responsible
for switching high-side outputs on and off).
The following table provides specifications for the VMM3120's high-side outputs:
High-Side Output Specifications
Item MIN NOM MAX UNIT
Switchable voltage range 6 - 32 V
Output current 0 - 2.5 A
Output on state resistance - 90 -
mΩ
Load resistance (12 V system) 6.4 - -
Ω
Load resistance (24 V system) 12.8 - -
Ω
Over-voltage - - 36 V
PWM frequency - - 500 Hz
PWM resolution - - 0.1 %
Inductive pulse protection - - 628 V (peak)
Digital feedback minimum negative going threshold 1.56 - - V
Digital feedback minimum positive going threshold - - 3.65 V
Open load detection resistance 10 - -
kΩ
4.1.2. High-Side Output Configuration
For software-controlled open load detection, the programmer has the ability to
choose when to bias the output through
the open load detection resistor. This
feature may be disabled by the programmer using software if the output is
connected to sensitive loads, such as LEDs.