Allicdata Part #: | ISL6842IB-ND |
Manufacturer Part#: |
ISL6842IB |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Intersil |
Short Description: | IC REG CTRLR PWM CM 8SOIC |
More Detail: | Converter Offline Boost, Buck, Flyback Topology Up... |
DataSheet: | ISL6842IB Datasheet/PDF |
Quantity: | 1000 |
1 +: | 0.00000 |
Duty Cycle: | 96% |
Base Part Number: | ISL6842 |
Mounting Type: | Surface Mount |
Supplier Device Package: | 8-SOIC |
Package / Case: | 8-SOIC (0.154", 3.90mm Width) |
Operating Temperature: | -40°C ~ 105°C (TA) |
Control Features: | Frequency Control |
Fault Protection: | Current Limiting |
Frequency - Switching: | Up to 2MHz |
Series: | -- |
Voltage - Supply (Vcc/Vdd): | 8.8 V ~ 18 V |
Voltage - Start Up: | 14.3V |
Topology: | Boost, Buck, Flyback |
Voltage - Breakdown: | -- |
Internal Switch(s): | No |
Output Isolation: | Isolated |
Part Status: | Obsolete |
Packaging: | Tube |
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Introduction
The ISL6842IB is a high frequency PC PWM controller IC that can be used for various applications. The device is a highly efficient and cost-effective single-chip solution for intermediate bus voltage regulation, providing targeted feature sets and user experiences. It features integrated DC-DC converter controllers to deliver efficient regulation of AC/DC and DC/DC supplies, as well as offline switching controllers to enable operation of non-isolated DC/DC converters. This makes it ideal for operation in digital/analog designs, including PCs, memory modules, capacitor choices, and more.
Application Field and Working Principle
The ISL6842IB can be used in a variety of applications, including PC power supplies, AC/DC offline switchers, DC/DC non-isolated converter, and more. Leveraging its advanced protection features and high efficiency, it is suitable for developing a wide range of digital and analog designs. The ISL6842IB features a wide range of features to make it suitable for different applications. It supports two types of power supply control, PC PWM control and PMBus™. This makes the device highly suitable for PC PWM designs. Furthermore, the device comes with power fail protection that provides over and under voltage protection. In addition, it features dynamic voltage scaling or droop control, thus allowing for scaling future designs with either traditional or new PC platforms with the highest efficiency.The heart of the ISL6842IB is a single-chip power supply controller that provides various features and capabilities. The core of the device is composed of an analogue PWM control circuit, a voltage divider and a power reference circuit. The output voltage is applied to a voltage divider, where it is compared to a reference voltage and then fed back to the polarity control logic. The polarity control logic will then determine if the output voltage needs to be raised or lowered. The output voltage is then adjusted by adjusting the duty of the PWM controller. Additionally, it also has an internal over-current protection and overtemperatureprotection so that it can be used safely in various applications.The ISL6842IB also has Active Prochot, which is an intelligent temperature control algorithm, and is used to protect the system from thermal overloads. This feature can be used with other thermal protection features like fan control, overtemperature shutdown, and voltage droop control.Finally, once the device is set up and configured, it will be able to handle the power requirements of many applications. This includes handling multiple current limit sequences and running at different output levels. The device will even be able to receive PWM commands from PC motherboards for better system-level control.In conclusion, the ISL6842IB is a highly efficient, cost-effective single-chip solution for intermediate bus voltage regulation. With its integrated DC/DC converters, it is suitable for both AC/DC and DC/DC supplies. It is also suitable for non-isolated DC/DC converters and provides a variety of features and capabilities such as active prochot, over-current and overtemperature protection, and more. As such, it is ideal for developing digital/analog designs such as PCs, memory modules, capacitor choices, and more.
The specific data is subject to PDF, and the above content is for reference
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