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Product Detailed Parameters
- Description：LED LIGHTING DRIVERS
- Series：-
- Mfr：Diodes Incorporated
- Package：Bulk
- Type：DC DC Regulator
- Topology：Step-Down (Buck)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：6V
- Voltage - Supply (Max)：40V
- Voltage - Output：-
- Current - Output / Channel：1A
- Frequency：233kHz ~ 1MHz
- Dimming：PWM
- Applications：Backlight, Lighting
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-5 Thin, TSOT-23-5
- Supplier Device Package：TSOT-25
- Grade：-
- Qualification：-
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Overview
The PAM2861ABR-B is a single-channel LED driver IC from Diodes Incorporated, featuring an integrated power switch. It operates as a buck converter with a switching frequency range of 233 kHz to 1 MHz. The device supports an input voltage range of 6 V to 40 V and delivers up to 1 A output current. It provides PWM and analog dimming capabilities along with open LED protection. The component is housed in a TSOT-25 surface-mount package and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates a high-voltage internal switch for compact design
- Supports both PWM and analog dimming control methods
- Includes built-in open LED protection circuitry
Applications
- General LED lighting applications
- Constant current LED driving circuits
- Buck topology LED driver designs
Procurement Notes
Verify the specific suffix 'B' against the manufacturer's official documentation to confirm any functional or packaging differences compared to the standard PAM2861ABR variant. Ensure compatibility with required PCB footprint and thermal management specifications before finalizing procurement orders.
Selection Notes
Select this component for applications requiring a single-channel constant current source with an integrated switch. It is suitable for systems operating between 6 V and 40 V input where space constraints favor the TSOT-25 package. Consider the 233 kHz to 1 MHz switching frequency range for electromagnetic interference planning.
Part Context
This part belongs to the PAM28 series of LED drivers manufactured by Diodes Incorporated. The series includes various configurations for different LED lighting needs. The PAM2861ABR-B specifically denotes a version of the 1A buck converter driver, potentially differing in tape-and-reel specifications or minor manufacturing revisions from the base model.
Replacement Considerations
The PAM2861ABR is listed as a related part number in public documentation. Verify if the 'B' suffix indicates a specific packaging change or revision level that affects interchangeability without altering electrical performance.
