XRP2527 Datasheet, PDF (10/13 Pages) Exar Corporation – Single/Dual Channel Adjustable Current Power Distribution Switch

XRP2527 - XRP2528
Single/Dual Channel Adjustable Current Power
Distribution Switch
typ. A
108.7
kohm
Please note that the allowed values for RSET
resistor are 100kohm < RSET < 330kohm.
UNDER-VOLTAGE LOCKOUT
Under-voltage lockout function (UVLO) keeps
the internal power switch from being turned
on until the power supply has reached at least
1.68V, even if the switch is enabled. Upon
detection of an input voltage below
approximately 1.68V, the power switch is
turned off while a fault condition is reported by
the error flag signal.
THERMAL PROTECTION
Internal thermal sensing circuitry monitors the
operating temperature of the device for each
channel independently. Upon detection of a
temperature in excess of 135°C, the power
switch for the given channel is disabled
preventing any damages to the device while a
fault condition is reported by the error flag
signal. A built-in 10°C hysteresis allows the
device to cool down to 125°C before resuming
normal operations on the faulty channel at
which point the error flag signal is cleared.
TEST CIRCUIT
© 2011 Exar Corporation
10/13
Rev. 1.1.0