LTC4413-1/LTC4413-2
8
441312ff
For more information www.linear.com/LTC4413-1
PIN FUNCTIONS
INA (Pin 1): Primary Ideal Diode Anode and Positive Power
Supply for LTC4413-1/LTC4413-2. Bypass INA with a ce
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ramic capacitor of at least 1µF. (Series 1Ω snub resistors
and higher valued capacitances are recommended when
large inductances are in series with this input.) This pin
can be grounded when not used. Limit slew rate on this
pin to less than 2.5V/µs.
ENBA (Pin 2): Enable Low for Diode A. Pull this pin high to
shut down this power path. Tie to GND to enable. Refer to
Table 1 for mode control functionality. This pin can be left
floating, a weak (3.5µA) pull-down internal to LTC4413-1/
LTC4413-2 is included.
GND (Pin 3): Power Ground for the IC.
ENBB (Pin 4): Enable Low for Diode B. Pull this pin high to
shut down this power path. Tie to GND to enable. Refer to
Table 1 for mode control functionality. This pin can be left
floating, a weak (3.5µA) pull-down internal to LTC4413-1/
LTC4413-2 is included.
INB (Pin 5): Secondary Ideal Diode Anode and Positive
Power Supply for LTC4413-1/LTC4413-2. Bypass INB
with a ceramic capacitor of at least 1µF. (Series 1Ω snub
resistors and higher valued capacitances are recommended
when large inductances are in series with this input.) This
pin can be grounded when not used. Limit slew rate on
this pin to less than 2.5V/µs.
OUTB (Pin 6): Secondary Ideal Diode Cathode and Output
of the LTC4413-1/LTC4413-2. Bypass OUTB with a high
(1mΩ min) ESR ceramic capacitor of at least 4.7µF. This
pin must be left floating when not in use. Limit slew rate
on this pin to less than 2.5V/µs.
OVP (Pin 7, LTC4413-2 Only): Drive Output for an Exter
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nal OVP Switch PMOS Transistor (To Inhibit Overvoltage
Wall Adapter Voltages from Damaging Device.) During
overvoltage conditions, this output will remain high so
long as an overvoltage condition persists. This pin must
be left floating when not in use.
OVI (Pin 8, LTC4413-2 Only): Sense Input for Overvoltage
Protection Block. This pin can be left floating or grounded
when not used.
STAT (Pin 9): Status Condition Indicator. Weak (11µA)
pull-down current output. When terminated, high indicates
diode conducting. Refer to Table 2 for the operation of this
pin. This pin can also be left floating or grounded.
OUTA (Pin 10): Primary Ideal Diode Cathode and Output
of the LTC4413-1/LTC4413-2. Bypass OUTA with a high
(1mΩ min) ESR ceramic capacitor of at least 4.7µF. This
pin must be left floating when not in use. Limit slew rate
on this pin to less than 2.5V/µs.
SGND (Exposed Pad Pin 11): Signal Ground. This pin
must be soldered to PCB ground to provide both electri
-
cal contact to ground and good thermal contact to PCB.
