Analog Devices LINEAR LT8491 Manual page 12

LT8491
PIN FUNCTIONS
NC (Pins 52, 60): Not connected.
IIR (Pin 53): A/D Input Pin. Connects to IMON_IN to read
input current. Used to manage MPPT and for telemetry.
VINR (Pin 54): A/D Input Pin. Connects to resistive divider
on V to measure input voltage. Used for telemetry and
IN
to manage MPPT and startup.
CLKDET (Pin 56): A/D Input Pin. Connects to CLKOUT
through an RC filter to detect the duty cycle of CLKOUT.
Used to manage startup.
FBOR (Pin 57): A/D Input Pin. Connects to FBOUT pin to
read charger output voltage. Used to manage the charg-
ing algorithm.
12
AV (Pin 58): A/D Positive Reference Pin. Tie this pin to
DD
V and LDO33.
DD
SDA (Pin 61): I
SCL (Pin 63): I
IOR (Pin 64): A/D Input Pin. Connects to IMON_OUT pin
to read the charger output current. Used for telemetry and
to manage the charging algorithm.
GND (Pins 55, 59, 62, Exposed Pad 65): Ground. Tie
directly to local ground plane.
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2
C Bidirectional Data Pin.
2
C Clock Input Pin (100kHz Maximum).
Rev. 0