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Product Detailed Parameters
- Description：BOOST (STEP-UP) WLED DRIVER WITH
- Series：-
- Mfr：Taiwan Semiconductor Corporation
- Package：Tape & Reel (TR)
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：2.5V
- Voltage - Supply (Max)：18V
- Voltage - Output：-
- Current - Output / Channel：650mA (Switch)
- Frequency：1.2MHz
- Dimming：Analog, PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-6
- Supplier Device Package：SOT-26
- Grade：-
- Qualification：-
Download product information
Overview
The TS19371CX6 is a step-up DC/DC converter designed for driving white LEDs with constant current. It operates from a 9V to 15V input supply and delivers up to 650mA output current. The device supports PWM and analog dimming control, features over-output voltage protection at 30V, and switches at a fixed frequency of 1.2MHz. It utilizes a low 95mV feedback voltage to minimize power loss and achieve typical efficiency of 89%. The component is housed in an SOT-26 package.
Feature Summary
- Inherently matched LED current for consistent brightness
- High efficiency operation with low feedback voltage
- Integrated over-output voltage protection for safety
- Supports both PWM and analog dimming control
Applications
- Cellular phone backlighting
- Handheld equipment illumination
- White LED driver circuits
Procurement Notes
Verify the specific suffix 'CX6' against the manufacturer's official datasheet to confirm pinout compatibility and packaging type. Ensure the application circuit design accounts for the 1.2MHz switching frequency requirements for inductor selection. Confirm RoHS and CE compliance status through the latest product documentation before finalizing procurement specifications.
Selection Notes
Select this component when designing space-constrained applications requiring high-efficiency white LED driving from a 9V to 15V source. The fixed 1.2MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the 30V OVP limit when selecting series LED configurations to ensure safe operation under open-load conditions.
Part Context
This part belongs to the TS19371 series of boost WLED drivers manufactured by Taiwan Semiconductor. The series is engineered for portable electronics where size and efficiency are critical. The CX6 designation typically refers to the specific tape-and-reel packaging configuration within this product line.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult the manufacturer's official cross-reference tools or contact technical support directly for verified alternative components.
