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/Title (Buck Regulator - Automotive, Watchdog 1.5 A)
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Buck Regulator - Automotive, Watchdog 1.5 A
ON Semiconductor
The NCV8881 consists of a Buck switching regulator (SMPS) with
a combination SMPS output undervoltage monitor and CPU watchdog
circuit. In addition
two fixed−voltage low dropout regulator outputs
are provided
and share an LDO output voltage status output. Once
enabled
regulator operation continues until the Watchdog signal is no
longer present. The NCV8881 is intended for Automotive
battery−connected applications that must withstand a 40 V load dump.
The switching regulator is capable of converting the typical 9 V to
19 V automotive input voltage range to outputs from 3.3 V to 8 V at a
constant switching frequency
which can be resistor programmed or
synchronized to an external clock signal. Enable input threshold and
hysteresis are programmable
with the enable input state replicated at
an open drain Ignition Buffer output. The regulators are protected by
current limiting
input overvoltage and overtemperature shutdown
as
well as SMPS short circuit shutdown.
2019-09-23T16:15:10+08:00
BroadVision, Inc.
2020-10-12T15:56:47+02:00
2020-10-12T15:56:47+02:00
Acrobat Distiller 19.0 (Windows)
The NCV8881 consists of a Buck switching regulator (SMPS) with
a combination SMPS output undervoltage monitor and CPU watchdog
circuit. In addition, two fixed−voltage low dropout regulator outputs
are provided, and share an LDO output voltage status output. Once
enabled, regulator operation continues until the Watchdog signal is no
longer present. The NCV8881 is intended for Automotive,
battery−connected applications that must withstand a 40 V load dump.
The switching regulator is capable of converting the typical 9 V to
19 V automotive input voltage range to outputs from 3.3 V to 8 V at a
constant switching frequency, which can be resistor programmed or
synchronized to an external clock signal. Enable input threshold and
hysteresis are programmable, with the enable input state replicated at
an open drain Ignition Buffer output. The regulators are protected by
current limiting, input overvoltage and overtemperature shutdown, as
well as SMPS short circuit shutdown.
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