MAX6971AUG+ by Analog Devices

16-Port, 36V Constant-Current LED Driver

Status: Active
Series: MAX6971
RoHS: Unknown
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The MAX6971 serial-interfaced LED driver provides 16 open-drain, constant-current-sinking LED driver outputs rated at 36V. The MAX6971 operates from a 3V to 5.5V supply. The MAX6971 supply and the LEDs' supply or supplies can power up in any order. The constant-current outputs are programmed together to up to 55mA using a single external resistor. The MAX6971 operates with a 25Mb, industry-standard, 4-wire serial interface. The MAX6971 uses the industry-standard, shift-register-plus-latch-type serial interface. The driver accepts data shifted into a 16-bit shift register using data input DIN and clock input CLK. Input data appears at the DOUT output 16 clock cycles later to allow cascading of multiple MAX6971s. The latch-enable input, LE, loads the 16 bits of shift register data into a 16-bit output latch to set which LEDs are on and which are off. The active-low output-enable, OE, gates all 16 outputs on and off, and is fast enough to be used as a PWM input for LED intensity control. For applications requiring LED fault detection, refer to the MAX6983, which automatically detects open-circuit LEDs. For safety-related applications requiring a watchdog timer, refer to the MAX6983, which includes a fail-safe feature that blanks the display if the serial interface becomes inactive for more than 1s. The MAX6971 is one of a family of 12 shift-register-plus-latch-type LED drivers. The family includes 8-port and 16-port types, with 5.5V- or 36V-rated LED outputs, with and without open-circuit LED detection and watchdog. All versions operate from a 3V to 5.5V supply, and are specified over the -40°C to +125°C temperature range.

Prices starting from US$3.42


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Logo for Newark Electronics Newark Electronics US$4.53
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Features

25Mb, Industry-Standard, 4-Wire Serial Interface
3V to 5.5V Logic Supply
16 Constant-Current LED Outputs Rated at 36V
Up to 55mA Continuous Current per Output
Output Current Programmed by Single Resistor
3% Current Matching Between Outputs
6% Current Matching Between ICs
High-Dissipation, 24-Pin Packages
-40°C to +125°C Temperature Range

Specifications

LCD or LED LED
Display Type Common Anode
Interface Serial 4-Wire 25Mbit
Digits or Char. 16-Segment
Output Format Any digit type
Segment Blinking No
VSUPPLY (V) (min) 3
VSUPPLY (V) (max) 5.5
Package/Pins PDIP/24TSSOP/24
BudgetaryPrice (See Notes) 2.85


MAX6971AUG+ Semiconductors - ICs by Analog Devices

LED DRIVER CONSTANT CURRENT TSSOP-24

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

Specifications

Device Topology -
No. of Outputs 16Outputs
Output Current 55mA
Output Voltage 36V
Driver Case Style TSSOP
No. of Pins 24Pins
Input Voltage Min 3V
Input Voltage Max 5.5V
Switching Frequency -
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Led Driver, Constant Current, Tssop-24 | Newark Electronics
LED DRIVER, CONSTANT CURRENT, TSSOP-24 | element14

Frequently Asked Questions

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This part has not been flagged as RoHS Compliant.

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