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Product Detailed Parameters
- Description：IC LED DRIVER RGLTR 25MA 12WLCSP
- Series：-
- Mfr：ams-OSRAM USA INC.
- Package：Tape & Reel (TR),Bulk
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：3
- Voltage - Supply (Min)：2.5V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：11V
- Current - Output / Channel：25mA
- Frequency：2MHz
- Dimming：-
- Applications：Backlight
- Operating Temperature：-30°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：12-UFBGA, WLCSP
- Supplier Device Package：12-WLCSP (1.7x1.4)
- Grade：-
- Qualification：-
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Overview
The AS3490 is a specialized LED driver IC designed for backlight applications. It functions as a 3-output DC-DC step-up (boost) regulator that converts low input voltages to higher levels required by LED strings. The device integrates an inductive 2MHz DC/DC boost converter to generate output for three independent channels. Each channel supports a maximum output current of 25mA. The component operates within a temperature range of -30°C to 85°C and utilizes a surface mount mounting type.
Feature Summary
- Integrates a 2MHz inductive DC/DC boost converter topology
- Provides three independent regulated output channels
- Designed specifically for LED backlight driving applications
Applications
- LED backlighting systems
- Display module illumination
- Portable electronic device lighting
Procurement Notes
Verify the specific package variant and marking code against the official datasheet before procurement. Confirm that the supplier provides genuine ams OSRAM AG components. Ensure the operating environment remains within the specified -30°C to 85°C ambient temperature range. Check for any specific handling requirements related to the surface mount technology used.
Selection Notes
Select this component when a compact solution for multi-channel LED backlighting is required. The integrated 2MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the 25mA per channel limit when designing the LED string configuration. Ensure the input voltage range matches the system's power supply capabilities.
Part Context
The AS3490 belongs to the family of LED drivers manufactured by ams OSRAM. This manufacturer specializes in innovative light and sensor technologies, providing solutions for various industrial and consumer applications. The part is engineered to meet the demands of modern display backlighting with high efficiency and reliability.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing PCB layouts and control signals if considering alternative drivers from other manufacturers.
