參數(shù)資料
型號： MAX6957ANI
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 顯示驅(qū)動器
英文描述： 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander
中文描述： LED DISPLAY DRIVER, PDIP28
封裝： DIP-28
文件頁數(shù)： 18/23頁
文件大小： 333K
代理商： MAX6957ANI
M
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and
28-Port LED Display Driver and I/O Expander
18
______________________________________________________________________________________
value is (4.75V - 2.4V - 0.6V)/0.020A = 87.5
. We
choose 82
±2%. Worst-case resistor dissipation is at
maximum toleranced resistance, i.e., (0.020A)
2
(82
1.02) = 34mW. The maximum MAX6957 dissipation
per LED is at maximum input supply voltage, minimum
toleranced resistance, minimum toleranced LED for-
ward-voltage drop, i.e., 0.020 x (5.25V - 2.0V - (0.020A
82
x 0.98)) = 32.86mW. Worst-case MAX6957 dissi-
pation is 920mW, driving all 28 LEDs at 20mA full cur-
rent at once, which meets the 941mW dissipation
ratings of the 36-pin SSOP package.
Low-Voltage Operation
The MAX6957 operates down to 2V supply voltage
(although the sourcing and sinking currents are not
guaranteed), providing that the MAX6957 is powered
up initially to at least 2.5V to trigger the device's internal
reset, and also that the serial interface is constrained to
10Mbps.
Power-Supply Considerations
The MAX6957 operates with power-supply voltages of
2.5V to 5.5V. Bypass the power supply to GND with a
0.047μF capacitor as close to the device as possible.
Add a 1μF capacitor if the MAX6957 is far away from
the board's input bulk decoupling capacitor.
Table 11. Even Individual Segment Current Format
LED DRIVE
FRACTION
SEGMENT
CONSTANT
CURRENT WITH
R
ISET
= 39k
(mA)
ADDRESS
CODE (HEX)
D7
D6
D5
D4
D3
D2
D1
D0
HEX CODE
1/16
2/16
3/16
4/16
5/16
6/16
7/16
8/16
9/16
10/16
11/16
12/16
13/16
14/16
15/16
16/16
1.5
3
4.5
6
7.5
9
10.5
12
13.5
15
16.5
18
19.5
21
22.5
24
0x12 to 0x1F
0x12 to 0x1F
0x12 to 0x1F
0x12 to 0x1F
0x12 to 0x1F
0x12 to 0x1F
0x12 to 0x1F
0x12 to 0x1F
0x12 to 0x1F
0x12 to 0x1F
0x12 to 0x1F
0x12 to 0x1F
0x12 to 0x1F
0x12 to 0x1F
0x12 to 0x1F
0x12 to 0x1F
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0xX0
0xX1
0xX2
0xX3
0xX4
0xX5
0xX6
0xX7
0xX8
0xX9
0xXA
0xXB
0xXC
0xXD
0xXE
0xXF
See Table 12.
相關(guān)PDF資料
PDF描述
MAX6964 17- OUTPUT LED DRIVER/GPO
MAX6964AEG 17- OUTPUT LED DRIVER/GPO
MAX6964ATG 17- OUTPUT LED DRIVER/GPO
MAX696 Microprocessor Supervisory Circuits(微處理器監(jiān)控器/電池開關(guān)/可編程的復(fù)位)
MAX7000A Programmable Logic Device
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX6957ANI+ 功能描述:LED顯示驅(qū)動器 2.5-5.5V 20/28Port LED Display Driver RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube
MAX6957APL 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX6957ATL 功能描述:LED顯示驅(qū)動器 RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube
MAX6957ATL+ 功能描述:LED顯示驅(qū)動器 2.5-5.5V 20/28Port LED Display Driver RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube
MAX6957ATL+T 功能描述:LED顯示驅(qū)動器 2.5-5.5V 20/28Port LED Display Driver RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*