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参数资料
| 型号： | MAX6954ATL+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 2/39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： | 50 |
| 显示器类型： | LED |
| 配置： | 7、14、16 段 |
| 接口： | 4 线串行 |
| 电流 - 电源： | 22mA |
| 电源电压： | 2.7 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： | 管件 |
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4-Wire Interfaced, 2.7V to 5.5V LED Display
Driver with I/O Expander and Key Scan
ABSOLUTE MAXIMUM RATINGS
(Voltage with respect to GND.)
V+ .........................................................................-0.3V to +6V
All Other Pins............................................-0.3V to (V+ + 0.3V)
Current
O0–O7 Sink Current ......................................................935mA
O0–O18 Source Current .................................................55mA
DIN, CLK, CS , OSC, DOUT, BLINK, OSC_OUT, ISET ....20mA
P0, P1, P2, P3, P4 ...........................................................40mA
GND .....................................................................................1A
Continuous Power Dissipation (T A = +70°C)
36-Pin SSOP (derate at 11.8mW/°C above +70°C) .....941mW
40-Pin PDIP (derate at 16.7mW/°C above +70°C).....1333mW
40-Pin TQFN (derate at 37mW/°C above +70°C) ......2963mW
Operating Temperature Range
(T MIN to T MAX ) ...............................................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(Typical Operating Circuits, V+ = 2.7V to 5.5V, T A = T MIN to T MAX , unless otherwise noted.) (Note 1)
PARAMETER
Operating Supply Voltage
SYMBOL
V+
CONDITIONS
MIN
2.7
TYP
MAX
5.5
UNITS
V
Shutdown mode, all
T A = +25°C
10
35
Shutdown Supply Current
I SHDN
digital inputs at V+
or GND
T A = T MIN to T MAX
40
μA
All segments on, all
digits scanned,
intensity set to full,
T A = +25°C
22
30
Operating Supply Current
I+
internal oscillator,
DOUT open circuit,
no display or
OSC_OUT load
T A = T MIN to T MAX
35
mA
connected
Master Clock Frequency
f OSC
OSC = RC oscillator, R SET = 56k Ω ,
C SET = 22pF, V+ = 3.3V
OSC driven externally
1
4
8
MHz
Dead Clock Protection Frequency
OSC Internal/External Detection
Threshold
OSC High Time
OSC Low Time
Slow Segment Blink Period
f OSC
V OSC
t CH
t CL
OSC = RC oscillator, R SET = 56k Ω ,
f SLOWBLINK C SET = 22pF, V+ = 3.3V
50
50
95
1.7
1
kHz
V
ns
ns
s
Fast Segment Blink Period
Fast or Slow Segment Blink Duty
Cycle
f FASTBLINK
OSC = RC oscillator, R SET = 56k Ω ,
C SET = 22pF, V+ = 3.3V
49.5
0.5
50.5
s
%
2
_______________________________________________________________________________________
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