MAX25588
MAX25588
RECOMMENDED FOR NEW DESIGNS38-Channel Local Dimming LED Driver
- Part Models
- 2
- 1ku List Price
- price unavailable
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Overview
- Flexible Configuration
- Optional Individual Programmable Delays
- Optional Pseudorandom Spread Spectrum on Each Output
- 38 Low-Side Constant-Current Drivers
- Up to 40mA Peak Output Current
- 0.25V Minimum SNK_ Voltage Headroom
- Very Narrow Minimum Current Pulse for Maximum Dimming Ratio
- Extensive Diagnostics
- LED Integrity Test
- Shorted or Open LEDs
- Shorted SNK_ to GND
- Undervoltage Detection on All Supplies, Overvoltage Detection on V18
- Thermal Warning/Shutdown
- FB Output to Control External DC-DC Converter
- Industry-Standard SPI Interface
- VSYNC Synchronization Input (Programmable Active High/Low)
- 7mm x 7mm, 48-Pin TQFN Package
- AEC-Q100 Grade 1
The MAX25588 is a 38-channel low-side driver. The integrated current outputs can sink up to 40mA LED current each. Device power comes from an external 3.3V or 5V supply, while the LED current-sink outputs can operate at up to 14V.
A feedback output pin (FB) is provided to control an external DC-DC converter so that voltage headroom can be optimized and the overall system power dissipation reduced.
The device is highly flexible due to its programmability using the SPI interface. Among the programmable parameters are the LED current and individual PWM settings.
The device features a high-speed interface for controlling up to 61 devices in a daisy-chain configuration. In addition, they include multiple diagnostic features.
The MAX25588 is available in a TQFN package and operates in the -40°C to +125°C temperature range.
Applications
- Central Information Displays
- Instrument Clusters
- Interior Lighting
- Exterior Rear Lighting
Documentation
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX25588ATM/VY+ | 48-Lead Side Wettable TQFN-CU (7mm x 7mm x 0.75mm) | ||
| MAX25588ATM/VY+T | 48-Lead Side Wettable TQFN-CU (7mm x 7mm x 0.75mm) |
This is the most up-to-date revision of the Data Sheet.