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Product Detailed Parameters
- Description：IC LED DRIVER RGLTR 640MA 8DSBGA
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：7V
- Voltage - Output：21V
- Current - Output / Channel：640mA (Switch)
- Frequency：1MHz
- Dimming：-
- Applications：Backlight
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-WFBGA
- Supplier Device Package：8-DSBGA
- Grade：-
- Qualification：-
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Overview
The LM3501TL-21/NOPB is a synchronous step-up DC/DC converter designed for white LED applications. It operates with a supply voltage range of 2.7V to 7V and provides an output voltage of up to 21V. The device features an internal switch capable of delivering 640mA. It is housed in an 8-DSBGA package, suitable for surface mount installation, and functions within an operating temperature range of -40°C to 85°C.
Feature Summary
- Synchronous step-up DC/DC topology optimized for LED driving
- Integrated internal power switch for compact design
- Supports analog dimming control capabilities
Applications
- White LED backlighting systems
- Portable electronic devices requiring efficient LED drive
- Battery-powered equipment with single-cell or dual-cell input
Procurement Notes
Verify the specific suffix 'TL-21' against the manufacturer's current datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the 8-DSBGA package footprint aligns with your PCB layout constraints. Confirm RoHS compliance status if required by your manufacturing standards.
Selection Notes
Select this component when a compact, high-efficiency boost converter is needed for white LEDs. The internal switch simplifies external component count. Consider the 640mA switch current limit and 21V maximum output voltage to ensure compatibility with the target LED string configuration and input supply range.
Part Context
This part belongs to Texas Instruments' family of LED driver integrated circuits. It serves as a specialized power management solution for lighting applications, distinct from general-purpose regulators. The NOPB suffix indicates lead-free and RoHS-compliant construction, adhering to environmental standards for modern electronics manufacturing.
Replacement Considerations
Check for LM3501TLX-21/NOPB for reel packaging options. Verify functional equivalents only if they match the 8-DSBGA package and 640mA switch current specifications. Cross-reference datasheets for pin compatibility before substitution.
