Allicdata Part #: | ISL6522CBZ-ND |
Manufacturer Part#: |
ISL6522CBZ |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Intersil |
Short Description: | IC REG CTRLR BUCK 14SOIC |
More Detail: | Buck Regulator Positive Output Step-Down DC-DC Co... |
DataSheet: | ISL6522CBZ Datasheet/PDF |
Quantity: | 1000 |
Frequency - Switching: | 200kHz |
Base Part Number: | ISL6522 |
Supplier Device Package: | 14-SOIC |
Package / Case: | 14-SOIC (0.154", 3.90mm Width) |
Operating Temperature: | 0°C ~ 70°C (TA) |
Control Features: | Enable, Frequency Control, Phase Control, Soft Start |
Serial Interfaces: | -- |
Clock Sync: | No |
Synchronous Rectifier: | Yes |
Duty Cycle (Max): | 100% |
Series: | -- |
Voltage - Supply (Vcc/Vdd): | 10.8 V ~ 13.2 V |
Output Phases: | 1 |
Number of Outputs: | 1 |
Topology: | Buck |
Output Configuration: | Positive |
Function: | Step-Down |
Output Type: | Transistor Driver |
Part Status: | Obsolete |
Packaging: | Tube |
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ISL6522CBZ Application Field and Working Principle
The ISL6522CBZ is a pulse width modulation DC/DC switching controller IC (integrated circuit) featuring a single-ended current-mode PWM control scheme. It is commonly used in the field of power management, voltage regulation and related converters, providing a wide range of input voltage up to +10V. It has a 3.3V to 6V power supply voltage, high efficiency, and internal current limit functionality.
Application Field
The ISL6522CBZ is designed for high-density, high-efficiency power supplies and system power management. It is a common application chip used in voltage regulators, load switches, power supplies, and converters, for many different applications. It can be used to provide output voltage up to 25V, with differential output current up to 20mA. It is especially suitable for small form factor, cost-effective, and efficient applications.
Working Principle
The ISL6522CBZ consists of a single-ended current-mode PWM control circuit, power FET support circuitry, a UV/OV fault monitor and a 6-bit ADC. Operating at a switching frequency ranging from 100kHz to 400kHz, it has an internal 1µA current limit. The device has an adjustable output voltage and protects current limit, under-voltage lockout and over-voltage lockout, with the help of internal comparators.
The operating principle of the device involves sensing the output current, and driving the internal power FETs. When the current reaches the selected level, the internal pulse width modulation (PWM) circuit changes the transistor states accordingly to regulate the current.
The device has an integrated protection circuit, consisting of an internal fault monitor that monitors over-voltage, under-voltage and current limit conditions, and in case of any abnormality, it triggers a low-impedance, low-voltage output on the fault pin to shut down the load.
Conclusion
The ISL6522CBZ is a pulse width modulation DC/DC switching controller chip that features a single-ended current-mode PWM control scheme. Commonly used in power management, voltage regulation and related converters, it is a cost-effective and efficient IC that is suitable for small form factor applications. It is capable of providing output voltage up to 25V and differential output current up to 20mA. Furthermore, it offers internal current limit functionality, over-voltage, under-voltage, and current protection through its integrated monitoring circuit.
The specific data is subject to PDF, and the above content is for reference
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