STEVAL-ILL067V1 Datasheet, PDF (4/10 Pages) STMicroelectronics – All automotive-grade components

Board description and efficiency measurement
STEVAL-ILL067V1
Figure 3: STEVAL-ILL067V1 evaluation board PCB, bottom view
4/10
Connector Name
Table 1: STEVAL-ILL067V1 connectors
Function
J1
VIN+
Power supply input, positive terminal
J2
GND
Ground. This terminal has to be preferred as return for the power supply
input.
J3
VBOOST
Boost converter output. Connect this terminal to the common anode of
the LED strings to be driven.
J4
GND
Quiet ground terminal. To be used as reference ground for all control
signals.
J5
SYNC
Switching frequency synchronization output. A synchronization clock is
available at this pin.
J6
FAULT
Faulty condition indicator. Open drain output, tied low by the device
when a faulty condition is detected. Also used to drive the D2 LED.
J7
DIM
PWM dimming control input. The output current generators are activated
according to this pin to perform a PWM brightness control of the LEDs.
J8
EN
Device Enable input. Internally pulled-up. If tied low the device turns-off.
J9
FSW
Switching frequency synchronization input. An external clock (30% max
duty-cycle) can be provided at this terminal to synchronize the boost
J10
ROW1 _converter.
J11
ROW2
Output terminals (channels). A low-side current generator is connected to
J12
ROW3 each output. Connect to the kathode of the LED strings. Unused channels
can be left floating.
J13
ROW4
DocID027964 Rev 1