DD211 Datasheet, PDF (4/11 Pages) Silicon Touch Technology Inc. – A DRIVER, CHARGE PUMP FOR HIGH FORWARD-VOLTAGE LEDS WITH LOW SUPPLY VOLTAGE (2.0V~3.3V)

點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
DD211
Recommended Operating Conditions
ITEM
SYMBOL MIN.
TYP.
Supply Voltage
External Capacitance
VDD - VSS 2.0
2.5
Cext
-
0.10
MAX.
3.3
-
UNIT
V
uF
Electrical Characteristics ( T_A= 25°C, V_DD= 2.5V )
Characteristic Symbols
Condition
Min. Typ. Max. Unit
Operating Current
Output Current for
‘ON’ Cycle
Time-Average
Output Current
Output Voltage for
‘ON’ Cycle
Output Voltage for
‘OFF’ Cycle
Frequency of the
Internal Oscillator
Duty Cycle of the
Internal Oscillator
I_DD
I_FON
I_FAVG
V_LEDAON
V_LEDAOFF
Freq
Dt
No external LED,
Cext=0.1uF
V_F of external LED=3.5V
Cext=0.1uF
V_F of external LED=3.5V
Cext=0.1uF
No external LED,
Cext=0.1uF
No external LED,
Cext=0.1uF
Cext=0.1uF
Cext=0.1uF
-
23
17.25
-
-
-
-
-
30
22.5
5.0
2.5
350
75
0.75 mA
37 mA
27.75 mA
-
V
-
V
- kHz
-
%
SP-DD211-A.001.doc
-3-
Version：A.001