Product Details
Key Features
Applications/Uses
VIN (V) (min) | 3 |
VIN (V) (max) | 36 |
Max. No. of LEDs | 40 |
# LED Channels | 4 |
Regulation Topology | Inductor Based |
LED Configuration | Series-Parallel |
ILED per Channel (A) (max) | 0.12 |
PWM Dimming Freq. (kHz) (max) | 20 |
Dimming Ratio (max) | 16666 |
Dimming Control | Analog PWM |
VDROPOUT (mV) (typ) | 750 |
POUT (W) | 15 |
ICC (mA) (max) | 10 |
LED String Volt. (V) (max) | 40 |
Switching Frequency (kHz) | 400 2200 |
Package/Pins | TQFN-CU/24 |
Budgetary Price (See Notes) | 0.83 |
Simplified Block Diagram
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Parameters
VIN (V) (min) | 3 |
VIN (V) (max) | 36 |
Max. No. of LEDs | 40 |
# LED Channels | 4 |
Regulation Topology | Inductor Based |
LED Configuration | Series-Parallel |
ILED per Channel (A) (max) | 0.12 |
PWM Dimming Freq. (kHz) (max) | 20 |
Dimming Ratio (max) | 16666 |
Dimming Control | Analog PWM |
VDROPOUT (mV) (typ) | 750 |
POUT (W) | 15 |
ICC (mA) (max) | 10 |
LED String Volt. (V) (max) | 40 |
Switching Frequency (kHz) | 400 2200 |
Package/Pins | TQFN-CU/24 |
Budgetary Price (See Notes) | 0.83 |
Key Features
- Operate down to 3V on Battery Input after Start-Up
- Wide Boost Duty Cycle to Support Low Input Voltage
- Boost or SEPIC Current-Mode DC-DC Controller
- 400kHz to 2.2MHz Operating Frequency Range
- Spread Spectrum Available
- Can Be Synchronized to an External Clock
- LED Current Sinks
- Up to 120mA Output Current per String
- Low OUT_ Regulation Voltage for Best Efficiency
- Optional Phase-Shifting of Outputs
- 16667:1 Dimming Ratio at 200Hz
- NTC Input for LED Current Foldback
- Analog Dimming Capable
- Built-In Automatic Fading Functionality
- FLTB Output Provides Diagnostic Information
- Shorted or Open LEDs
- Thermal Shutdown
- Output Undervoltage
- Compact, 4mm x 4mm TQFN Package
- AEC-Q100 Grade 1
Applications/Uses
- Automotive Central Information Displays
- Automotive Head-Up Displays
- Automotive Instrument Clusters
Description
The MAX25510/MAX25511 are 4-channel, white-LED backlight drivers with an integrated current-mode boost converter that operate over a switching frequency range of 400kHz to 2.2MHz and incorporate spread spectrum. Phase-shifting of the output channels is included as an option to further reduce EMI.
The devices provide up to 120mA per channel and include a control output for an external nMOS series switch. These devices are capable of operating down to 3V after start-up.
The MAX25510 has a boost current limit of 3A (min), while the MAX25511 implements a higher minimum current limit of 4.5A for increased output power.
The MAX25510/MAX25511 are available in a compact TQFN package and operate over the temperature range -40°C to +125°C.
Simplified Block Diagram
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.