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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM 1.5A 8MSOP
- Series：-
- Mfr：Diodes Incorporated
- 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)：5.5V
- Voltage - Output：40V
- Current - Output / Channel：1.5A (Switch)
- Frequency：1MHz
- Dimming：Analog, PWM
- Applications：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-MSOP
- Grade：-
- Qualification：-
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Overview
The PAM2841SR is a precision white LED driver IC from Diodes Incorporated, designed for step-up conversion applications. It operates with an input voltage range of 2.7 V to 5.5 V and delivers a switch current of 1.5 A at a fixed switching frequency of 1 MHz. The device supports output voltages up to 40 V and features PWM dimming capabilities. It functions within a temperature range of -40°C to +85°C and is housed in an MSOP-8 package.
Feature Summary
- Integrates a high-efficiency boost converter topology for driving white LEDs
- Supports precise pulse-width modulation (PWM) dimming control
- Includes internal protection mechanisms against over-current and thermal overload
Applications
- White LED backlighting systems
- Portable electronic devices requiring compact power solutions
- General-purpose LED lighting drivers
Procurement Notes
Verify the specific suffix 'SR' corresponds to the required tape-and-reel packaging configuration as indicated by distributor listings. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the MSOP-8 footprint matches the target PCB design constraints and thermal requirements for the intended operating environment.
Selection Notes
Select this component when a single-channel boost driver is needed for white LEDs with inputs between 2.7 V and 5.5 V. The 1.5 A switch current capability suits medium-power LED strings. Consider the 1 MHz switching frequency for balancing component size and efficiency. Verify that the required dimming method aligns with the supported PWM interface.
Part Context
This part belongs to the PAM28 series of LED drivers from Diodes Incorporated. It is specifically engineered for precision white LED applications, distinguishing itself through integrated boost conversion and dimming controls. The SR suffix typically denotes reel packaging, differentiating it from cut-tape or tube variants within the same functional family.
Replacement Considerations
Direct substitutes may include other parts from the PAM2841 family, such as PAM2841GR, provided the packaging difference does not impact assembly. Cross-reference electrical parameters like switch current and output voltage limits with alternative manufacturers' offerings to ensure compatibility.
