S-8338ABHC-P8T1G

Voltage - Supply (Vcc/Vdd):	1.8 V ~ 6 V
Supplier Device Package:	8-SON (A) (2.9x2.8)
Package / Case:	8-SMD, Flat Lead
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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Introduction

The S-8338ABHC-P8T1G is a positive output step-down DC-DC controller designed for automotive and industrial applications. This device is a constant voltage/constant current (CV/CC) controller providing superior performance in regulating power, output current limiter, and low-noise operation. Features of the S-8338ABHC-P8T1G include an internal compensation circuitry to maintain load stability, a current limit protection and shutdown protection, an adjustable over current threshold, and an adjustable dead time.

Application Field

The S-8338ABHC-P8T1G is used in automotive and industrial applications where stable output voltage and current are required, such as in motor-drive systems, DC-DC converters, and voltage regulator modules. Due to its high efficiency rating, it is also suitable for energy-saving applications.

Working Principle

The S-8338ABHC-P8T1G uses a voltage-mode control system to regulate the output voltage and current. In a CV/CC system, the control system is designed to maintain a constant output voltage by monitoring the output current and its variance from the set point. When the output current is higher than the set point, the controller reduces the voltage set point in order to reduce the output current; when the output current is lower than the set point, the controller increases the voltage set point in order to increase the output current.The S-8338ABHC-P8T1G also employs a unique protection feature that allows it to detect over-current conditions, shut down the system before damage occurs, and then reinitiate operation when the over-current condition is cleared. This protection feature is adjustable and allows the user to customize the protection according to their requirements.

Conclusion

The S-8338ABHC-P8T1G is an ideal choice for applications requiring a stable output voltage and current. Its high efficiency ensures that it can be used in energy-saving applications, and its protection feature prevents it from damaging the system due to over-current situations. Its internal compensation and current limit protection further add to its superior performance, making it a valuable addition to any system.

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