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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM 20MA 6SON
- Series：-
- Mfr：Toshiba Semiconductor and Storage
- 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)：2.8V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：20mA
- Frequency：1MHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：6-UFDFN Exposed Pad
- Supplier Device Package：6-SON (1.8x2)
- Grade：-
- Qualification：-
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Overview
The TB62755FPG,EL is a single-output DC-DC regulator IC designed for LED backlighting applications. It integrates a boost converter topology with an internal N-channel MOSFET switch and operates within a supply voltage range of 2.8V to 5.5V. The device supports PWM dimming control and delivers a regulated output current of 20mA. It features overvoltage protection that automatically cuts off the output when the detected voltage exceeds 37V. The component is housed in a compact 6-SON (1.8x2) package with exposed pad and functions reliably across an operating temperature range of -40°C to +85°C.
Feature Summary
- Integrates a step-up DC-DC converter with an internal N-channel power MOSFET for efficient white LED driving.
- Provides automatic overvoltage protection by cutting off output when voltage exceeds 37V.
- Supports precise PWM dimming control for brightness adjustment.
- Allows external setting of LED drive current via an external resistor.
Applications
- Backlight driver for handheld LCD terminal devices
- White LED backlight circuits powered by lithium-ion batteries
- Driving series-connected white LEDs
Procurement Notes
Verify the specific suffix (O or EL) against the manufacturer's official documentation to ensure correct packaging and marking specifications. Confirm component availability status as this part may be discontinued or subject to limited supply constraints. Cross-reference the exact ordering number with Toshiba Semiconductor and Storage catalogs to validate RoHS compliance and lead-free status prior to procurement.
Selection Notes
Select this component for applications requiring a compact solution for driving multiple series-connected white LEDs from a low-voltage source. Ensure the design accommodates the 37V overvoltage threshold and utilizes the PWM input for dimming requirements. Verify that the external resistor value aligns with the desired 20mA output current specification and that the operating environment stays within the specified temperature limits.
Part Context
This IC belongs to the TB62755 series of LED drivers manufactured by Toshiba Semiconductor and Storage. It is specifically engineered for portable electronic devices where space efficiency and power management are critical. The device replaces discrete boost converter solutions by integrating the controller, power switch, and protection circuitry into a single small-footprint package.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult Toshiba Semiconductor and Storage technical support for direct replacements or pin-compatible alternatives if this specific model is unavailable.
