S-8338ACDA-T8T1G

Voltage - Supply (Vcc/Vdd):	1.8 V ~ 6 V
Supplier Device Package:	8-TSSOP
Package / Case:	8-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Current Limit, Enable, Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	88.5%
Frequency - Switching:	257.4kHz ~ 1.134MHz
Series:	--
Output Phases:	1
Number of Outputs:	1
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Output Type:	Transistor Driver
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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S-8338ACDA-T8T1G Overview

The S-8338ACDA-T8T1G is a buck-boost converter type integrated DC/DC switch controller developed by Samsung Electronics. It is designed to provide a cost-effective, high-efficiency power solution in a small form factor package. The S-8338ACDA-T8T1G is capable of providing a dual-mode buck-boost converter control solution in one package. The integrated features of the S-8338ACDA-T8T1G include a soft-start/soft-stop feature, programmable output voltage, protection circuits, and a wide range of output voltage accuracy.

Application Field and Working Principle of S-8338ACDA-T8T1G

The S-8338ACDA-T8T1G DC/DC switch controllers are mainly used for applications that require low-voltage, high-current power solutions. The wide operating voltage range of 4.5V to 18V makes it ideal for automotive, industrial, and embedded computing applications. The high efficiency and small form factor of the S-8338ACDA-T8T1G make it an ideal choice for cost-sensitive applications. In addition, the S-8338ACDA-T8T1G provides a wide input voltage range, tight output voltage accuracy, and low EMI performance.The S-8338ACDA-T8T1G is a buck-boost converter type DC/DC switch controller. In buck mode, the S-8338ACDA-T8T1G is used for applications where the output voltage is to be reduced from the input voltage. In boost mode, the S-8338ACDA-T8T1G is used for applications where the output voltage is to be increased from the input voltage. This controller contains all the necessary control blocks to provide an accurate output voltage, adjustable soft-start/soft-stop, sync functions, as well as over-voltage and under-voltage protection functions.The S-8338ACDA-T8T1G uses a PWM control method to achieve high efficiency. A single digital logic signal controls the power stage. This logic signal is derived from the digital amplifier inside the controller, which is connected to the external reference voltage. The digital amplifier is designed to generate a duty cycle control signal, which is proportional to the reference voltage. The duty cycle of the logic signal dictates the output voltage of the power stage, and this duty cycle can be programmed through an external resistive divider.The S-8338ACDA-T8T1G is also able to provide a soft-start and soft-stop feature, which can be adjusted through an external capacitor. This feature reduces the inrush current and prevents possible stress on the power supply and load during turn-on and turn-off. The controller also includes short-circuit and thermal protection, which ensures the reliable operation of the power stage. The S-8338ACDA-T8T1G is capable of providing high-accuracy output voltage in both buck and boost mode operation. The output voltage accuracy is programmable and can be adjusted over a wide range. This is accomplished by using an external resistor divider and an internal voltage reference. The internal voltage reference is also used to provide a voltage lock function, which further improves the system stability.

Conclusion

The S-8338ACDA-T8T1G is a high performance, integrated DC/DC switch controller designed to provide a cost-effective, high-efficiency power solution in a small form factor package. It is ideal for automotive, industrial, and embedded computing applications due to its wide operating voltage range, tight output voltage accuracy, and low EMI performance. The S-8338ACDA-T8T1G is a buck-boost converter type DC/DC switch controller, and it provides adjustable soft-start/soft-stop, sync functions, as well as over-voltage and under-voltage protection functions. This controller is capable of providing high-accuracy output voltage in both buck and boost mode operation, and it is also able to provide a voltage lock function to further improve the system stability.

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