MAX1698AEUB+ by Analog Devices

High-Efficiency Step-Up Current Regulator for LEDs

Status: Active
Series: MAX1698, MAX1698A
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The MAX1698 and MAX1698A are efficient drivers for white or color LEDs. They are ideal for large LED backlit displays in PDAs and laptop computers. Numerous benefits include greater simplicity, lower cost, higher efficiency, longer bulb life, and greater reliability when compared to fluorescent (CCFL) and electroluminescent (EL) lamps. The MAX1698/MAX1698A are switch-mode boost controllers in which LED current, rather than output voltage, is regulated The devices drive series-connected LEDs with a controlled current that is measured with a typically 15Ω sense resistor, not an expensive fractional-ohm value. LED current control and dimming are accomplished with an adjust input (ADJ). For larger light output, multiple LED banks can be connected in parallel with up to 5W total output power. The MAX1698A has a higher, and more accurately specified, CS current limit than the MAX1698 for higherpower applications of 5W or more. Both devices are supplied in a space-saving 10-pin µMAX package that occupies half the space of an 8-pin SO. An evaluation kit (MAX1698EVKIT) is available to speed designs.

Where to Buy

Prices starting from US$2.00

Distributor Stock
Logo for Farnell
Farnell
from US$2.00
160
in stock
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Logo for element14
element14
from US$2.01
160
in stock
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Logo for Analog Devices
Analog Devices
from US$2.08
1
in stock
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Features

Over 90% Efficiency
Lossless, Adjustable LED Brightness
Space-Saving 10-Pin µMAX Package
Simpler, Lower Cost, More Reliable Compared to CCFL or EL Backlights
Up to 5W Output Power

Specifications

VIN (V) (min) 2.7
VIN (V) (max) 5.5
Max. No. of LEDs 50
# LED Channels 4
Regulation Topology Inductor Based
Battery Input 1-Cell Li+
LED Configuration Series-Parallel
ILED per Channel (A) (max) 0.35
Dimming Ratio (max) 20
Dimming Control Analog
VCURR_SENSE (mV) 300
POUT (W) 5
ICC (mA) (max) 0.5
LED String Volt. (V) (max) 60
Switching Frequency (kHz) 300
Package/Pins UMAX/10
BudgetaryPrice (See Notes) 1.56


MAX1698AEUB+ Semiconductors - ICs by Analog Devices

LED DRIVER BOOST UMAX-10

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Device Topology Boost (Step Up)
Input Voltage Min 2.7V
Input Voltage Max 5.5V
Output Voltage Max 60V
Output Current Max 350mA
Switching Frequency 300kHz
No. of Outputs 1Outputs
IC Mounting SMD
Driver Case Style µMAX
No. of Pins 10Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Output Current 350mA
Output Voltage 60V

Alternative Descriptions

LED DRIVER, BOOST, UMAX-10 | element14
High-Efficiency Step-Up Curren | Analog Devices

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX1698AEUB+ ?

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Is the MAX1698AEUB+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX1698AEUB+ have stock available?

Authorised distributors including element14, Farnell and Analog Devices have stock available or on a lead time for MAX1698AEUB+ .

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