| Allicdata Part #: | ISL8501IRZ-ND |
| Manufacturer Part#: |
ISL8501IRZ |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Intersil |
| Short Description: | IC REG TRPL BUCK/LINEAR 24-QFN |
| More Detail: | Linear And Switching Voltage Regulator IC 3 Output... |
| DataSheet: |  ISL8501IRZ Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | 0.00000 |
Specifications
| Voltage/Current - Output 3: | 0.6 V ~ 4.2 V, 500mA |
| Base Part Number: | ISL8501 |
| Supplier Device Package: | 24-QFN (4x4) |
| Package / Case: | 24-VFQFN Exposed Pad |
| Mounting Type: | Surface Mount |
| Operating Temperature: | -40°C ~ 85°C |
| Voltage - Supply: | 6 V ~ 25 V |
| w/Sequencer: | No |
| w/Supervisor: | No |
| w/LED Driver: | No |
| Series: | -- |
| Voltage/Current - Output 2: | 0.6 V ~ 4.2 V, 500mA |
| Voltage/Current - Output 1: | Controller |
| Frequency - Switching: | 500kHz |
| Number of Outputs: | 3 |
| Function: | Any Function |
| Topology: | Step-Down (Buck) (1), Linear (LDO) (2) |
| Part Status: | Obsolete |
| Packaging: | Tube |
Description
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The ISL8501IRZ is a 5V/2.5A AC/DC constant frequency primary side synchronous switching driver with auto-restart and Enable/Disable control functions. It is suitable for PWM-controlled high voltage flyback converters in power source adapters, power over Ethernet (PoE), and various other low power offline AC-DC power supplies. It is a high performance, cost-effective and power efficient product to provide a very low standby power solution while maintaining excellent line/load regulation within minimal external components. In this article, we will explore the application field and working principle of the ISL8501IRZ.
Application Fields
The ISL8501IRZ is an ideal linear and switching voltage regulator for both AC and DC power applications, such as mobile appliances, PoE networks and industrial power systems. It is designed to meet a wide range of applications, including low power handheld and battery powered devices, medical equipment, commercial office systems, LED lighting. Moreover, it is well suited for normal power source adapters and various other offline AC-DC applications. Its features include high accuracy output voltage, high efficiency at light loads, wide input voltage range and very low standby power.Working Principle
The ISL8501IRZ is a monolithic switch mode power supply (SMPS) series that integrates a synchronous buck controller, an internal power MOSFET, and several protection features. It operates in DCM or CCM via auto-restart/Enable/Disable control using a minimum of external components.In DCM mode, the controller regulates the output by adjusting the current curves in the device and by adjusting the amount of time the MOSFET is open each cycle. The current limit can be programmed with a single external resistor, reducing the amount of components required to regulate output current.In CCM mode, the controller regulates the output voltage by adjusting the duty cycle of the MOSFET, achieving very accurate and highly efficient performance at all load levels.Features and Benefits
The ISL8501IRZ features a versatile protection circuit that monitors voltage and current levels, as well as temperature. In addition, the device includes an active current limit (ACL) circuit, over voltage protection (OVP) and under voltage protection (UVP).The internal power MOSFET features a maximum continuous drain current (ID) rating of 2.5A, enough to handle all but the most demanding applications. In addition, the device integrates a fixed frequency oscillator, allowing designers to program a wide range of output voltages with minimal external components. The ISL8501IRZ also features a high efficiency of up to 93% at 3.3V load, low standby power and wide input voltage range. This helps to reduce power costs and ensures high system performance.Furthermore, the device offers a slew of other features and benefits, including adjustable soft start, auto-restart, power saving and safety timer, over temperature protection (OTP) and user-programmable fault protection, among others.Conclusion
The ISL8501IRZ is a highly efficient, low-power, 5V/2.5A AC/DC constant frequency primary side synchronous switching driver with auto-restart and enable/disable control functions. It is designed to meet a wide range of applications, from low power handheld and battery powered devices to medical devices, commercial office systems and LED lighting.The device features a versatile protection circuit and an integrated power MOSFET that can handle up to 2.5A current. It offers wide input voltage range, and high efficiency and low standby power, helping to reduce power costs and ensuring high system performance.Overall, the ISL8501IRZ is an ideal linear and switching voltage regulator for both AC and DC power applications.The specific data is subject to PDF, and the above content is for reference
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