AL3158FSG-7 Diodes Inc, AL3158FSG-7 Datasheet - Page 4

• Manufacturer Part Number: AL3158FSG-7
• Description: Charge Pumps High EFF 2.7V - 5.5V 3-Ch White LED 20mA
• Manufacturer: Diodes Inc

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