st2221a Silicon Touch Technology Inc., st2221a Datasheet - Page 10

• Manufacturer Part Number: st2221a
• Description: 8-bit Constant Current Led Drivers
• Manufacturer: Silicon Touch Technology Inc.

8-BIT CONSTANT CURRENT LED DRIVERS
100
100
100
80
60
40
20
80
60
40
20
80
60
40
20
0
0
0
0
0
0
Vdd=5V
Tj=120°C(Max)
8bit Active
Ta=25°C
Vdd=5V
Tj=140°C(Max)
8bit Active
Ta=85°C
點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC
Vdd=5V
Tj=140°C(Max)
8bit Active
Ta=60°C
Iout - Duty Cycle (SSOP)
Iout - Duty Cycle (SSOP)
Iout - Duty Cycle (SOP)
20
20
20
Duty Cycle (%)
Duty Cycle (%)
Duty Cycle (%)
40
40
40
Vo=0.45(V)
Vo=0.70(V)
Vo=0.95(V)
60
60
60
80
80
Vo=0.95(V)
Vo=0.95(V)
80
Vo=0.45(V)
Vo=0.70(V)
Vo=0.45(V)
Vo=0.70(V)
100
100
100
.
Version:A.036
100
100
100
80
60
40
20
80
60
40
20
80
60
40
20
0
0
0
0
0
0
Vdd=5V
Tj=120°C(Max)
8bit Active
Ta=60°C
Vdd=5v
Tj=140°C(Max)
8bit Active
Ta=25°C
Vdd=5V
Tj=140°C(Max)
8bit Active
Ta=85°C
Iout - Duty Cycle (SSOP)
Iout - Duty Cycle (SOP)
Iout - Duty Cycle (SOP)
20
20
20
Duty Cycle (%)
Duty Cycle (%)
Duty Cycle (%)
40
40
40
Vo=0.45(V)
Vo=0.70(V)
Vo=0.95(V)
60
60
60
Vo=1.0(V)
80
80
80
Vo=0.45(V)
Vo=0.70(v)
Vo=0.45(V)
Vo=0.95(V)
Vo=0.70(V)
ST2221A
100
100
100
Page: 9