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Product Detailed Parameters
- Description：IC LED DRVR LINEAR 100MA 16SOIC
- Series：-
- Mfr：ams-OSRAM USA INC.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：Yes
- Number of Outputs：8
- Voltage - Supply (Min)：3.15V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：15V
- Current - Output / Channel：100mA
- Frequency：50MHz
- Dimming：-
- Applications：Signage
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Grade：-
- Qualification：-
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Overview
The AS1109-BSOT is a linear LED driver IC manufactured by ams OSRAM AG, designed for direct LED driving applications. It features an 8-channel output topology with a shift register interface and internal switches. The device supports a supply voltage range of 3V to 5.5V and delivers up to 100mA per channel at a maximum output voltage of 15V. Operating at a frequency of 50MHz, it is housed in a 16-SOIC surface-mount package. The component is rated for an operating temperature range of -40°C to 85°C and is designated as obsolete.
Feature Summary
- Provides constant current drive for up to eight LEDs via a fast serial interface.
- Includes on-chip diagnostics capable of detecting open or short LED positions during operation.
- Integrates internal switches within a linear driver topology for efficient power management.
Applications
- Signage displays
- Direct LED driving systems
- Applications requiring diagnostic feedback
Procurement Notes
This component is officially listed as obsolete by the manufacturer. Verification of availability should focus on surplus distributors rather than primary channels. Confirm the specific suffix BSOT matches the required 16-SOIC package and pinout. Ensure compatibility with existing design constraints given the end-of-life status.
Selection Notes
Select this part only if the application requires exactly eight channels with integrated fault detection. Verify that the 15V output limit and 100mA current rating align with the LED load requirements. Consider the obsolete status when planning long-term production runs. Alternative solutions may be necessary for new designs due to discontinuation.
Part Context
The AS1109 belongs to the ams OSRAM LED driver family, which focuses on digital photonics solutions. This specific model serves as a bridge between simple drivers and complex matrix controllers, offering diagnostic capabilities not found in basic variants. It is part of a broader portfolio aimed at enhancing reliability in visual signaling and display technologies.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, no direct official replacements are listed. Engineers must evaluate third-party equivalents or redesign using newer ams OSRAM series components that offer similar channel counts and diagnostic features.
