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AOZ1977AI-1
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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR PWM 16SO
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR)
- Type：DC DC Controller
- Topology：Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：8V
- Voltage - Supply (Max)：30V
- Voltage - Output：16V
- Current - Output / Channel：-
- Frequency：100kHz, 350kHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SO
- Grade：-
- Qualification：-
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Overview
The AOZ1977AI-1 is a high-voltage LED driver IC from Alpha & Omega Semiconductor, belonging to the EZBoost series. It functions as a DC-DC boost controller designed for PWM dimming applications. The device operates with an input voltage range of 8V to 30V and provides a maximum output voltage of 16V. It supports switching frequencies of 100kHz and 350kHz. Packaged in a 16-SOIC (3.90mm wide) surface-mount case, it is rated for operation between -40°C and 85°C ambient temperature.
Feature Summary
- Integrated boost topology controller for efficient step-up conversion
- Supports pulse-width modulation (PWM) dimming control
- Operates within a wide input voltage range up to 30V
Applications
- LED display backlighting systems
- General LED lighting circuits
- Portable electronic devices requiring compact power management
Procurement Notes
Verify component status carefully as this part is officially listed as obsolete by the manufacturer. Confirm availability through authorized distributors or secondary markets. Ensure the specific suffix matches system requirements. Check RoHS compliance documentation for regulatory adherence. Validate package dimensions against PCB footprint specifications before integration.
Selection Notes
Select this component for designs requiring a single-output boost converter with integrated PWM dimming capabilities. Consider the 16-SOIC package size for space-constrained layouts. Evaluate the 100kHz and 350kHz frequency options against electromagnetic interference constraints. Ensure input voltage stability remains within the 8V to 30V operational window for reliable performance.
Part Context
This IC belongs to the EZBoost family of power management solutions from Alpha & Omega Semiconductor. It is specifically engineered for driving LEDs in portable and industrial applications. The device integrates essential control loops for stable boost regulation. It serves as a dedicated solution for replacing discrete MOSFET and controller combinations in LED driver designs.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. As the AOZ1977AI-1 is marked obsolete, alternative sourcing requires careful evaluation of pin compatibility and electrical parameters. Consult manufacturer archives for potential direct replacements.
