AL3158FSG-7 Diodes Inc, AL3158FSG-7 Datasheet - Page 4
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AL3158FSG-7
Manufacturer Part Number
AL3158FSG-7
Description
Charge Pumps High EFF 2.7V - 5.5V 3-Ch White LED 20mA
Manufacturer
Diodes Inc
Datasheet
1.AL3158FSG-7.pdf
(10 pages)
Specifications of AL3158FSG-7
Output Current
270 mA
Supply Current
2 mA
Maximum Operating Temperature
+ 85 C
Package / Case
QFN-20
Input Voltage
2.7 V to 5.5 V
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Switching Frequency
1.2 MHz
Topology
Charge Pump
No. Of Outputs
3
Dimming Control Type
PWM
Operating Temperature Range
-40°C To +85°C
Driver Case Style
QFN
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Typical Performance Characteristics
AL3158
Document number: DS35047 Rev. 2 - 2
EN1,2,3
2V/div
Vout
2V/div
Cp
2V/div
Iin
200mA/div
Load Characteristics in 2x Mode
Turn-Off from 1x Mode
Turn-On to 1x Mode
200ms/div
50us/div
1us/div
I
I
V
T
V
T
L
L
A
=20mA
A
=20mA
IN
IN
=25°C
=25°C
=4.2V
=3.0V
Iin
100mA
Vin
200mV
V
T
I
Vout
200mV
L
A
IN
=20mA
Iin
200mA/div
=25°C
=4.2V
EN1,2,3
2V/div
Vout
2V/div
Cp
2V/div
AC
AC
www.diodes.com
/div
/div
AC
/div
4 of 10
Cp
2V/div
Iin
200mA/div
EN1,2,3
2V/div
Vout
2V/div
V
Freq=20kHz
Duty Cycle=50%
IN
HIGH EFFICIENCY 1x/2x CHARGE PUMP
=3.6V
PWM Dimming Control (Duty Cycle=50%)
FOR WHITE LED APPLICATIONS
Turn-Off from 2x Mode
Turn-On to 2x Mode
200ms/div
100us/div
10us/div
T
A
V
T
I
L
=25°C
A
=20mA
IN
=25°C
=3.0V
AL3158
© Diodes Incorporated
January 2011
V
T
I
EN
3.6V/div
Idx
50mA/div
Iin
100mA/div
L
A
=20mA
IN
Iin
200mA/div
=25°C
=3.0V
EN1,2,3
2V/div
Vout
2V/div
Cp
2V/div