参数资料
型号: MAX6970AUE+T
厂商: Maxim Integrated
文件页数: 1/12页
文件大小: 0K
描述: IC LED DRIVER LINEAR 16-TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
恒定电流:
拓扑: 线性,高端
输出数: 8
内部驱动器:
类型 - 主要: LED 照明显示器,标牌,汽车
电源电压: 3 V ~ 5.5 V
输出电压: 36V
安装类型: 表面贴装
封装/外壳: 16-TSSOP(0.173",4.40mm)裸露焊盘
供应商设备封装: 16-TSSOP-EP
包装: 带卷 (TR)
工作温度: -40°C ~ 125°C
ATION
EVALU
AVAILA
19-3890; Rev 0; 10/05
KIT
BLE
8-Port, 36V Constant-Current LED Driver
General Description
The MAX6970 serial-interfaced LED driver provides
eight open-drain, constant-current-sinking LED driver
outputs rated at 36V. The device operates from a 3V to
5.5V supply. The MAX6970 supply and the LEDs’ sup-
ply can power up in any order. The constant-current
outputs are programmed together up to 55mA using a
single external resistor. The MAX6970 operates with a
25Mbps, industry-standard, 4-wire serial interface.
The MAX6970 uses the industry-standard shift-register-
plus-latch-type serial interface. The driver accepts data
shifted into an 8-bit shift register using data input DIN
and clock input CLK. Input data appears at output
DOUT eight clock cycles later to allow cascading of
multiple MAX6970s. The latch-enable input, LE, loads
the 8 bits of shift register data into an 8-bit output latch
to set which LEDs are on and which are off. The output-
enable input, OE , gates all eight outputs on and off,
and is fast enough to be used as a PWM input for LED
intensity control.
Features
? 25Mbps Industry-Standard 4-Wire Serial Interface
at 5V
? 3V to 5.5V Logic Supply
? Eight 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
? -40°C to +125°C Temperature Range
Ordering Information
For applications requiring LED fault detection, refer to
the MAX6981 data sheet that automatically detects
open-circuit LEDs.
For safety-related applications requiring a watchdog
PART
MAX6970AUE
MAX6970AAE
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
PIN-
PACKAGE
16 TSSOP-EP*
16 SSOP
PKG
CODE
U16E-3
P16-1
timer, refer to the MAX6980 data sheet, which includes
a fail-safe feature that blanks the display if the serial
interface becomes inactive for more than 1s.
The MAX6970 is one of a family of 10 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.
Applications
* EP = Exposed pad.
Typical Application Circuit and Selector Guide appear at
end of data sheet.
Pin Configuration
TOP VIEW
Variable Message Signs
Marquee Displays
Point-of-Order Signs
Traffic Signs
GND 1
DIN 2
CLK 3
LE 4
16 V+
15 SET
14 DOUT
13 OE
Gaming Features
Architectural Lighting
OUT0 5
OUT1 6
OUT2 7
OUT3 8
MAX6970
12 OUT7
11 OUT6
10 OUT5
9
OUT4
TSSOP/SSOP
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
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