Skip to main content
Log in
Analog Devices MAX6957ATL+T — DC-DC Power Modules

MAX6957ATL+T LED Driver, 4-Wire Serial, 40-TQFN, Active

MPNMAX6957ATL+T
End of Life

Analog Devices MAX6957ATL+T, LED display driver, 4-wire serial interface, 7/16/20 segment configuration, 180 µA supply, 2.5V–5.5V, –40°C to 125°C, 40-TQFN (6x6) exposed pad, surface mount, active.

$13.24Ref. price · indicative, final on quote
Packaging40-WFQFN Exposed Pad
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

MAX6957ATL+T specifications
ParameterValue
Display typeLED
MountingSurface Mount
Voltage2.5V ~ 5.5V
Current - supply180 µA
Interface4-Wire Serial
Operating temperature-40°C ~ 125°C
PackageTape & Reel (TR); Cut Tape (CT)
Configuration7, 16, 20 Segment
Case40-WFQFN Exposed Pad

Product details

LED driver that handles the segment count without external shift registers

The MAX6957ATL+T from Analog Devices (Maxim Integrated) is a compact LED display driver that handles 7, 16, or 20 segment configurations through a 4-wire serial interface. It integrates the constant-current sinks and multiplexing logic, so you don't need external shift registers or discrete current-setting resistors for each segment. The 180 µA typical supply current keeps the power budget low even when driving multiple digits, and the 2.5V to 5.5V supply range lets it run from a single lithium cell or a 3.3V/5V rail.

Sourcing and lifecycle — still in active production

Frequently asked questions

Does the MAX6957ATL+T require external components like resistors?

The MAX6957ATL+T integrates constant-current sinks, so it does not need external current-setting resistors for each segment. A single external resistor sets the global current level for all segments. The 4-wire serial interface connects directly to a microcontroller's SPI or GPIO lines.

What is the output current of the MAX6957?

The MAX6957ATL+T's segment output current is programmable via an external resistor. The datasheet provides the resistor value versus current curve; typical designs set it between 2 mA and 40 mA per segment depending on LED brightness and power budget.