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参数资料
| 型号： | MAX6957ATL+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 20/25页 |
| 文件大小： | 0K |
| 描述： | IC DRVR DSPL LED 40-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 显示器类型： | LED |
| 配置： | 7、16、20 段 |
| 接口： | 4 线串行 |
| 电流 - 电源： | 180µA |
| 电源电压： | 2.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN-EP（6x6） |
| 包装： | 带卷 (TR) |
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and
28-Port LED Display Driver and I/O Expander
SPI Routing Considerations
The MAX6957’s SPI interface is guaranteed to operate at
26Mbps on a 2.5V supply, and on a 5V supply typically
operates at 50Mbps. This means that the transmission
line issues should be considered when the interface con-
nections are longer that 100mm, particularly with higher
supply voltages. Ringing manifests itself as communica-
tion issues, often intermittent, typically due to double
clocking due to ringing at the SCLK input. Fit a 1k Ω to
10k Ω parallel termination resistor to either GND or V+ at
the DIN, SCLK, and CS input to damp ringing for moder-
ately long interface runs. Use line impedance matching
terminations when making connections between boards.
PC Board Layout Considerations
Ensure that all the MAX6957 GND connections are
used. A ground plane is not necessary, but may be
useful to reduce supply impedance if the MAX6957
outputs are to be heavily loaded. Keep the track length
from the ISET pin to the R ISET resistor as short as pos-
sible, and take the GND end of the resistor either to the
ground plane or directly to the GND pins.
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.
Chip Information
TRANSISTOR COUNT: 30,316
PROCESS: CMOS
Pin Configurations (continued)
TOP VIEW
ISET 1
36 V+
GND
GND
2
3
35 CS
34 DIN
P8
P12
1
2
30
29
P4
P31
P9
3
28
P5
DOUT
P8
4
5
33 SCLK
32 P4
P13
P10
4
5
27
26
P30
P6
P12
P9
P13
6
7
8
31 P31
30 P5
29 P30
P14
P11
P15
P16
6
7
8
9
MAX6957
25
24
23
22
P29
P7
P28
P27
P10
9
MAX6957
28 P6
P17
10
21
P26
P14 10
P11 11
27 P29
26 P7
P15 12
P16 13
P17 14
P18 15
P19 16
P20 17
P21 18
SSOP
25 P28
24 P27
23 P26
22 P25
21 P24
20 P23
19 P22
TQFN
20
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| MAX6958AAEE | 功能描述:LED显示驱动器 3-5.5V 4-Digit 9-Seg LED Display Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| MAX6958AAEE+ | 功能描述:LED显示驱动器 3-5.5V 4-Digit 9-Seg LED Display Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| MAX6958AAEE+T | 功能描述:LED显示驱动器 3-5.5V 4-Digit 9-Seg LED Display Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| MAX6958AAEE-T | 功能描述:LED显示驱动器 3-5.5V 4-Digit 9-Seg LED Display Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| MAX6958AAPE | 功能描述:LED显示驱动器 RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
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