Velleman 4-Digit Display Datasheet-2

LED Drive Control Special Circuit TM1637
9
©Titan Micro Electronics www.titanmec.com
V2.4
Electrical parameter
1、 Limit parameter (Ta = 25℃, Vss = 0 V)
Parameters
Symbol
Range
Unit
Logic power supply voltage
VDD
-0.5 ～+7.0
V
Logic input voltage
VI1
-0.5 ～ VDD + 0.5
V
LED and SEG drive sink current
IO1
50
mA
LED and GRID drive source
current
IO2
200
mA
Power loss
PD
400
mW
Work temperature
Topt
-40 ～ +85
℃
Storage temperature
Tstg
-65 ～+150
℃
2、 Normal working range (Ta = -40～+85℃, Vss = 0 V)
Parameters
Symbol
Minimu
m
Typical
Maximu
m
Unit
Test
condition
Logic power supply voltage
VDD
5
V
-
High-level input voltage
VIH
0.7 VDD
-
VDD
V
-
Low-level input voltage
VIL
0
-
0.3 VDD
V
-
3、Electrical character (Ta = -40 - +85℃, VDD = 4.5 - 5.5 V, Vss = 0 V)
Parameters
Symbol
Minim
um
Typic
al
Maxi
mum
Unit
Test condition
GRID drive source
current
Ioh1
80
120
180
mA
GRID1~GRID6，
Vo = vdd-2V
Ioh2
80
140
200
mA
GRID1~GRID6，
Vo = vdd-3V
SEG drive sink current
IOL1
20
30
50
mA
SEG1~SEG8
Vo=0.3V
DOUT pin output low
current
Idout
4
-
-
mA
Vo = 0.4V，dout
High-level output current
tolerance
Itolsg
-
-
5
%
Vo = VDD – 3V，
GRID1～GRID6
Output pull down resistor
RL
10
KΩ
K1~K2