参数资料
型号: MAX6957ATL+T
厂商: Maxim Integrated
文件页数: 3/25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
ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit, V+ = 2.5V to 5.5V, T A = T MIN to T MAX , unless otherwise noted.) (Note 1)
PARAMETER
Port Sink Current
Output Short-Circuit Current
SYMBOL
I OL
I OLSC
CONDITIONS
V PORT = 0.6V
Port configured output low, shorted to V+
MIN
2
2.75
TYP
10
11
MAX
18
20
UNITS
mA
mA
V+ = 2.5V, V LED = 2.3V at maximum LED
current
9.5
13.5
18
Port Drive LED Sink Current,
Port Configured as LED Driver
I PORT
V+ = 3.3V, V LED = 2.4V at maximum LED
current (Note 2)
18.5
24
27.5
mA
V+ = 5.5V, V LED = 2.4V at maximum LED
current
19
25
30
Port Drive Logic Sink Current,
Port Configured as LED Driver
I PORT_SC
V+ = 2.5V, V OUT = 0.6V at maximum LED
current
V+ = 5.5V, V OUT = 0.6V at maximum LED
current
18.5
19
23
24
28.0
28
mA
Port LED Sink Current Matching
Δ I PORT
6
%
Input High-Voltage SCLK, DIN,
CS
Input Low-Voltage SCLK, DIN, CS
V IH
V IL
V+ ≤ 3.3V
V+ > 3.3V
1.6
2
0.6
V
V
Input Leakage Current SCLK,
DIN, CS
I IH , I IL
-50
+50
nA
Output High-Voltage DOUT
Output Low-Voltage DOUT
V OH
V OL
I SOURCE = 1.6mA
I SINK = 1.6mA
V+ -
0.5
0.4
V
V
TIMING CHARACTERISTICS (Figure 3)
(V+ = 2.5V to 5.5V, T A = T MIN to T MAX , unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CLK Clock Period
CLK Pulse Width High
CLK Pulse Width Low
CS Fall to SCLK Rise Setup Time
CLK Rise to CS Rise Hold Time
DIN Setup Time
DIN Hold Time
t CP
t CH
t CL
t CSS
t CSH
t DS
t DH
38.4
19
19
9.5
0
9.5
0
ns
ns
ns
ns
ns
ns
ns
Output Data Propagation Delay
Minimum CS Pulse High
t DO
t CSW
C LOAD = 25pF
19
21
ns
ns
Note 1: All parameters tested at T A = +25°C. Specifications over temperature are guaranteed by design.
Note 2: Guaranteed by design.
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3
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