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Product Detailed Parameters
- Description：IC LED DRVR LIN PWM 20MA 8SOIC
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：-
- Internal Switch(s)：Yes
- Number of Outputs：3
- Voltage - Supply (Min)：6.5V
- Voltage - Supply (Max)：90V
- Voltage - Output：4V ~ 90V
- Current - Output / Channel：20mA
- Frequency：0Hz ~ 100kHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 119°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-SOIC-EP
- Grade：-
- Qualification：-
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Overview
The CL320SG-G is a three-channel linear LED driver manufactured by Microchip Technology, designed to drive LED strings at a constant current of 20mA. It operates with an input voltage range of 6.5V to 90V and supports output voltages from 4V to 15V per channel. The device features a fixed drive current with ±6% tolerance across the specified VOUT range. Each channel includes independent enable pins for PWM dimming, three-step linear dimming, or individual disconnection of faulty LED strings. Packaged in an 8-pin SOIC-N EP, it offers high-level and low-level output currents of 20mA.
Feature Summary
- Provides constant current driving for three independent LED channels
- Supports PWM dimming and three-step linear dimming via separate enable pins
- Includes protection against short circuits and thermal overload
Applications
- Three-channel 20mA linear LED driver circuits
- LED lighting systems requiring constant current regulation
- Applications utilizing Zener diodes for power dissipation reduction
Procurement Notes
Verify the specific part number suffix and package type when ordering, as variations may exist within the product family. Confirm that the required output current matches the 20mA specification of this component. Ensure compatibility with the 6.5V to 90V input voltage range for your application design. Check datasheet details for thermal performance requirements under maximum load conditions.
Selection Notes
Select this component for applications requiring precise constant current control across multiple LED channels. Consider the 20mA output limit when sizing LED loads. Evaluate the need for independent channel control if fault isolation or distinct dimming profiles are required. Verify that the SOIC-8 package fits the available PCB space and thermal management strategy.
Part Context
The CL320SG-G belongs to the CL320/CL325/CL330 series of three-channel linear LED drivers from Microchip Technology. While sharing similar architectural features, this specific model is optimized for 20mA output, distinguishing it from variants like the CL330 which supports higher currents up to 30mA. All models in the series share common interface and protection features.
Replacement Considerations
The CL325SG-G and CL330SG-G are related parts within the same series. Substitution requires verification of output current ratings (20mA vs 30mA) and ensuring the replacement part meets the specific voltage and thermal requirements of the original design.
