![ISL6840IB Allicdata Electronics](https://files.allicdata.com/upload/common/default.jpg)
Allicdata Part #: | ISL6840IB-ND |
Manufacturer Part#: |
ISL6840IB |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Intersil |
Short Description: | IC REG CTRLR BOOST/FLYBACK 8SOIC |
More Detail: | Boost, Flyback Regulator Positive, Isolation Capab... |
DataSheet: | ![]() |
Quantity: | 1000 |
1 +: | 0.00000 |
Frequency - Switching: | Up to 2MHz |
Base Part Number: | ISL6840 |
Supplier Device Package: | 8-SOIC |
Package / Case: | 8-SOIC (0.154", 3.90mm Width) |
Operating Temperature: | -40°C ~ 105°C (TA) |
Control Features: | Current Limit, Frequency Control |
Serial Interfaces: | -- |
Clock Sync: | No |
Synchronous Rectifier: | Yes |
Duty Cycle (Max): | 96% |
Series: | -- |
Voltage - Supply (Vcc/Vdd): | 7.5 V ~ 14 V |
Output Phases: | 1 |
Number of Outputs: | 1 |
Topology: | Boost, Flyback |
Output Configuration: | Positive, Isolation Capable |
Function: | Step-Up, Step-Up/Step-Down |
Output Type: | Transistor Driver |
Part Status: | Obsolete |
Packaging: | Tube |
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The ISL6840IB is a high-performance, integrated pulse-width modulation (PWM) controller optimized for applications requiring high efficiency, low EMI and system flexibility. With the advanced digital control techniques, the ISL6840IB employs a unique adaptive slew rate design to optimize the loop response and minimize EMI. The advanced PWM algorithms are intelligently controlled by the on-chip 32-bit processors (ARM Cortex™-M4). This highly integrated solution helps system designers easily regulate the voltage on the output with real-time changes of the system load/environmental conditions.
The applications fields of the ISL6840IB are typically DC/DC synchronous buck converters. It is designed to handle a wide range of input voltage and current capabilities that are ideal for the application in automotive, industrial and computing products. The ISL6840IB also offers power-trim computation capabilities to keep the VOut within the set limits. This feature is especially useful in system designs where the output voltage value has to be kept constant within some permissible range.
The working principle of the ISL6840IB includes a digital Proportional-Integral-Derivative controller and an on-chip 32-bit processors (ARM Cortex™-M4). The integrated digital controller takes the command of the programmed values to regulate the system’s output voltage. It controls the inner circuit to adjust the voltage through pulse width modulation and at the same time monitors the power trim and telemetry status. The integrated processor provides enhanced flexibility for the system\'s voltage regulation and also supports crisp, low-noise on/off switching and local dimming control.
The ISL6840IB uses a number of external components, including inductors, capacitors and resistors, to form the switching regulator system. The external components form the foundational elements of the regulator by forming the feedback circuit. The inductor is the main part of the voltage converter, as it stores energy, present in the form of a time-varying magnetic field, while the capacitor is the charge storage element. The controller and the external components together form a closed loop where the sensed voltage is compared to a reference voltage and the output voltage is regulated accordingly.
The ISL6840IB also provides several programmable features, such as the output voltage range and the frequency of switching/conversion. The user can customize the output voltage as per their own needs and can monitor the feedback signal through the integrated telemetry interface. The controller also supports several advanced protection mechanisms, including Over Voltage protection, Under Voltage protection, over-temperature supervision, protection against inductor short circuit and protection against over current.
The ISL6840IB is an efficient, fully integrated DC/DC switching controller. It is the ideal choice for small to medium power applications that require high efficiency and system flexibility. The sophisticated digital control techniques, along with the integrated processor, allow system designers to accurately control the output voltage in real time. The robust protection mechanisms of the ISL6840IB make it well suited for automotive, industrial and computing systems.
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