SD45216_Datasheet
HIGH EFFICIENCY STEP-DOWN DC/DC CONVERTER WITH ADJUSTABLE CURRENT LIMIT FOR AUTOMOTIVE APPLICATIONS
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SD45216_Datasheet
HIGH EFFICIENCY STEP-DOWN DC/DC CONVERTER WITH ADJUSTABLE CURRENT LIMIT FOR AUTOMOTIVE APPLICATIONS
DESCRIPTION
The SD45216 is a high efficiency step down DC-DC converter
with adjustable current limit in compact SOP-8 package,
including an error amplifier, ramp generator, current comparator,
slope compensation, current sense and logic driver. It also
integrates a current error amplifier to have a constant voltage
and constant current control.
Peak current mode PWM control with external adjustable
compensation provides a stable and high efficient operation over
a wide range of load currents. By means of an on board current
sense resistor and the availability of the current sense pins, a
current limit programming is very simple and accurate.
The internal robust P-channel DMOS
transistor with a typical of
100 mΩ assures high efficiency even at high output current level.
The internal limiting current of typical value of 3 A, output short and over temperature protection, protect the device from
APPLICATIONS
accidental damage.
* Automotive applications
The internal fixed switching frequency of 120 kHz, and the * Chargers for NiCd, NiMH batteries
SOP-8 package pin allow building an ultra compact DC/ DC * Simple step-down converters with
converter with a minimum board space.
adjustable current limit
FEATURES
* Adjustable current generator
* Up to 2A output current * Up to 90% Efficiency * Input Voltage Range: 8V to 40V * 120 kHz Internal Ji...