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AOZ1948AI#A
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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR PWM 8SOIC
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR)
- Type：DC DC Controller
- Topology：Step-Down (Buck)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：8V
- Voltage - Supply (Max)：16V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：PWM
- Applications：Backlight, Lighting
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The AOZ1948AI#A is a high-efficiency Buck controller designed for general-purpose LED backlight applications. It supports both high voltage and low voltage configurations without requiring a separate bias supply. The device operates with PWM dimming control and features an absolute maximum supply voltage of 16V. It is housed in an 8-SOIC package with a width of 3.90mm and functions within an operating temperature range of -40°C to 85°C ambient.
Feature Summary
- High-efficiency buck topology for LED driving
- Integrated bias supply eliminating external components
- Supports PWM dimming control methods
- Suitable for high and low voltage LED backlighting
Applications
- LED backlight systems
- General purpose lighting circuits
- High voltage LED drivers
- Low voltage LED drivers
Procurement Notes
Verify component status as the AOZ1948AI series is listed as obsolete by Alpha & Omega Semiconductor Inc. Confirm availability through authorized distributors or substitute part numbers. Ensure compliance with RoHS3 specifications and check for any product change notices affecting lead times or packaging before procurement.
Selection Notes
Select this component for applications requiring efficient buck conversion for LED backlights. Consider the 16V max supply limit and 8-SOIC package constraints. Verify thermal performance within the -40°C to 85°C range. Evaluate compatibility with PWM dimming signals required by the system design.
Part Context
The AOZ1948AI belongs to the Alpha & Omega Semiconductor integrated circuit portfolio, specifically categorized under PMIC LED Drivers. It is manufactured in an 8-SOIC surface mount package. The part is identified by DigiKey number 785-AIP5D04E050A1S-ND in some listings, though this appears to be a data mapping error; the correct manufacturer part number is AOZ1948AI.
Replacement Considerations
Check for similar LED driver controllers from Alpha & Omega or other manufacturers. Verify pin compatibility and electrical parameters such as switching frequency and current limits. Ensure the substitute supports the same PWM dimming interface and voltage range.
