AL3158FSG-7 Diodes Inc, AL3158FSG-7 Datasheet - Page 2

• 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

Pin Descriptions
Functional Block Diagram
AL3158
Document number: DS35047 Rev. 2 - 2
Pin Name
PGND
GND
GND
V
EN1
EN3
EN2
VIN
CN
NC
CP
D8
D9
D1
D2
D3
D4
D5
D6
D7
OUT
Pin Number
EP PAD
10,19
11
12
13
14
15
16
18
17
20
1
2
3
4
5
6
7
8
9
Current sink input #8. Connected to VOUT when un-used.
Current sink input #9. Connected to VOUT when un-used.
Enable Pin 1
Enable Pin 3
Enable Pin 2
Charge Pump Switch Ground
Negative Terminal of Flying Capacitor
Input Power Supply. Requires 2.2µF capacitor between this pin and ground.
Positive Terminal of Flying Capacitor
No-Connect
Charge pump output to drive load circuit. Requires 2.2µF capacitor between this pin
and ground.
Current sink input #1. Connected to V
Current sink input #2. Connected to V
Current sink input #3. Connected to V
Current sink input #4. Connected to V
Current sink input #5. Connected to V
Current sink input #6. Connected to V
Ground
Current sink input #7. Connected to V
Exposed Pad (bottom). Connected to GND directly underneath the package.
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2 of 10
HIGH EFFICIENCY 1x/2x CHARGE PUMP
Description
OUT
OUT
OUT
OUT
OUT
OUT
OUT
FOR WHITE LED APPLICATIONS
when un-used.
when un-used.
when un-used.
when un-used.
when un-used.
when un-used.
when un-used.
AL3158
© Diodes Incorporated
January 2011