MAX1553ETA+T by Analog Devices

High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs


The MAX1553/MAX1554 drive white LEDs in series with a constant current to provide efficient display backlighting in cellular phones, PDAs, and other hand-held devices. The step-up converter includes an internal 40V, low RDSON, N-channel MOSFET switch for high efficiency and maximum battery life. The MAX1553 has a current limit of 480mA for driving two to six white LEDs, while the MAX1554 has a current limit of 970mA for driving up to 10 white LEDs. A single analog/PWM Dual Modeâ„¢ input provides two simple means of brightness adjustment. A separate enable input provides on/off control. Soft-start minimizes inrush current during startup. The MAX1553/MAX1554 are available in space-saving 8-pin TDFN 3mm x 3mm packages.

Where to Buy

Prices starting from US$1.49

Distributor Stock
Logo for Rochester Electronics
Rochester Electronics
from US$1.49
2,029
in stock
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Logo for Newark
Newark Electronics
from US$2.88
1,287
in stock
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Logo for Farnell UK
Farnell
from US$2.89
1,287
in stock
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Logo for Analog Devices
Analog Devices
from US$2.30
454
in stock
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Features

Highly Integrated and Flexible Solution for Wide Range of Backlighting Applications Constant-Current Regulation for Even LED Illumination Internal 40V MOSFET Switch Capable of Driving 10 LEDs 2.7V to 5.5V Input Voltage Range Analog or PWM Control of LED Intensity Optimized for Low Input Ripple
Constant-Current Regulation for Even LED Illumination
Internal 40V MOSFET Switch Capable of Driving 10 LEDs
2.7V to 5.5V Input Voltage Range
Analog or PWM Control of LED Intensity
Optimized for Low Input Ripple
Soft-Start Minimizes Inrush Current
High Efficiency Improves Battery Life Up to 88% Efficiency Driving 6 LEDs Up to 82% Efficiency Driving 9 LEDs (20mA, VCC = 3.6V)
Up to 88% Efficiency Driving 6 LEDs
Up to 82% Efficiency Driving 9 LEDs (20mA, VCC = 3.6V)
Tiny 8-Pin, 3mm x 3mm TDFN Package Saves Space Small, Low-Profile External Components
Small, Low-Profile External Components

Specifications

VIN (V) (min) 2.7
VIN (V) (max) 5.5
Max. No. of LEDs 6
# LED Channels 1
Regulation Topology Inductor Based
Battery Input 1-Cell Li+
LED Configuration Series
ILED per Channel (A) (max) 0.02
PWM Dimming Freq. (kHz) (max) 10
Dimming Ratio (max) 10
Dimming Control AnalogPWM
VCURR_SENSE (mV) 200
POUT (W) 0.5
ICC (mA) (max) 0.35
LED String Volt. (V) (max) 40
Switching Frequency (kHz) 250
Package/Pins TDFN/8
BudgetaryPrice (See Notes) 1.39

Last 6 months Inventory & Pricing History



MAX1553ETA+T Maxim Integrated Parts by Analog Devices

LED DRIVER BOOST 40V TDFN-8

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 40V
Output Current Max 480mA
Switching Frequency 250kHz
No. of Outputs 1Outputs
IC Mounting SMD
Driver Case Style TDFN
No. of Pins 8Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History


Alternative Descriptions

Led Driver, Boost, 40V, Tdfn-8 | Newark Electronics
LED DRIVER, BOOST, 40V, TDFN-8 | Farnell
High-Efficiency, 40V Step-Up C | Analog Devices

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX1553ETA+T ?

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Is the MAX1553ETA+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX1553ETA+T have stock available?

Authorised distributors including Rochester Electronics, Newark Electronics, Farnell and Analog Devices have stock available or on a lead time for MAX1553ETA+T .

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