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Product Detailed Parameters
- Description：WIDE INPUT VOLTAGE RANGE BOOST/S
- Series：-
- Mfr：Allegro MicroSystems
- Package：Bulk
- Type：DC DC Controller
- Topology：Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：6
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：40V
- Voltage - Output：-
- Current - Output / Channel：140mA
- Frequency：260kHz ~ 2.3MHz
- Dimming：Analog, PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：24-WFQFN Exposed Pad
- Supplier Device Package：24-QFN (4x4)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The A80605KESJSR is a six-channel LED lighting driver IC from Allegro MicroSystems, designed for wide input voltage applications. It operates as a Boost or SEPIC controller with integrated LED drivers, supporting an input voltage range of 4.5 V to 40 V and a maximum output current of 140 mA per channel. The device features an adjustable switching frequency between 260 kHz and 2.3 MHz and supports both analog and PWM dimming. Packaged in a 24-QFN (4x4) format, it is rated for automotive use with an operating temperature range of -40°C to +125°C.
Feature Summary
- Supports Boost and SEPIC topologies for flexible LED string configurations
- Integrates six independent LED driver channels with constant current control
- Enables precise brightness regulation through combined analog and PWM dimming capabilities
Applications
- Automotive exterior lighting systems
- LED backlighting modules
- General solid-state lighting fixtures
Procurement Notes
Verify the specific suffix JESR against the official datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with your system's input voltage range and thermal management requirements. Confirm AEC-Q100 qualification status if required for your automotive application. Cross-reference the manufacturer part number with distributor listings to avoid counterfeit components.
Selection Notes
Select this component when designing circuits requiring multiple LED channels driven by a single controller. It is suitable for applications needing wide input voltage tolerance and high efficiency. Consider the 24-QFN package constraints for PCB layout. Compare output current ratings against other variants in the A80605 series if higher drive currents are necessary.
Part Context
This part belongs to the A80605 family of LED drivers from Allegro MicroSystems. These devices are engineered for robust performance in automotive environments. The family shares common architectural features but varies in channel count and current ratings. The A80605 specifically targets six-channel applications within the broader portfolio of power management solutions.
Replacement Considerations
Check for A80605-1 variant for potential pin-compatible updates. Verify electrical parameters against A80602 or A80604 if channel count adjustments are acceptable.
