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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR 40MA 20SSOP
- Series：-
- Mfr：Toshiba Semiconductor and Storage
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：-
- Internal Switch(s)：Yes
- Number of Outputs：9
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：28V
- Current - Output / Channel：40mA
- Frequency：-
- Dimming：-
- Applications：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-LSSOP (0.173", 4.40mm Width)
- Supplier Device Package：20-SSOP
- Grade：-
- Qualification：-
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Overview
The TB62781FNG,8,EL is a constant current LED driver IC manufactured by Toshiba Semiconductor and Storage. It features nine output channels with an output current of 40 mA per channel. The device operates on a power supply voltage ranging from 3 V to 5.5 V and supports a maximum output voltage of 28 V. It utilizes a boost topology and functions within an operating frequency of 10 MHz. The component is housed in a 20-SSOP package and is designed for surface mount installation. It includes thermal shutdown protection and operates across a temperature range of -40°C to +85°C.
Feature Summary
- Provides constant current regulation for multi-channel LED applications
- Integrates thermal shutdown protection to prevent overheating
- Supports logical input signal voltage levels compatible with 3.3V and 5V CMOS interfaces
Applications
- LED lighting systems requiring constant current drive
- Multi-channel LED arrays
- Consumer electronics with LED indicators or displays
Procurement Notes
Verify the specific ordering suffix matches the required package and tape/reel configuration. Confirm that the 8-character suffix variant aligns with the intended manufacturing process and quality standards. Ensure compatibility with existing PCB footprints for the 20-SSOP package. Cross-reference the datasheet for any updates regarding RoHS compliance status and recommended soldering profiles before finalizing procurement orders.
Selection Notes
Select this component when a high channel count with low per-channel current is required. The 9-channel configuration suits applications needing independent control of multiple LED strings. Consider the 28 V maximum output voltage limit for series LED configurations. The integrated thermal shutdown feature reduces the need for external protection circuits. Evaluate the 20-SSOP package size against available board space constraints.
Part Context
This part belongs to the TB62781 series of LED drivers from Toshiba. It is specifically designed for driving LEDs with constant current characteristics. The series typically offers multiple channel options and integrates protection features like thermal shutdown. It is categorized under LED Lighting Drivers and falls within the broader PMIC family for power management and signal conditioning in electronic devices.
Replacement Considerations
Check for direct substitutes within the Toshiba TB627xx series that offer similar channel counts and current ratings. Verify pin-to-pin compatibility if replacing on an existing PCB. Compare electrical parameters such as maximum output voltage and operating temperature range to ensure functional equivalence.
