Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. U-QFN4040-16
Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. U-QFN4040-16
Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. U-QFN4040-16
High Efficiency 1X/1.5X/2X Charge Pump For White LED Applications
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The AP3156 is a 6-channel low noise, constant frequency charge pump DC/DC converter that uses a tri-mode load switch (1X), fractional (1.5X), and doubling (2X) conversion to maximize efficiency in white LED applications. The AP3156 is capable of driving 6 LED channels at a combined maximum of 120mA from a 2.7V to 5.5V input. The current sink outputs may be operated individually or in parallel for driving higher-current LEDs. A low external parts count (two 1μF flying capacitors and two small 1μF capacitors at VIN and VOUT) make this part ideally suited for small, battery-powered applications. The AP3156's serial digital input is used to enable, disable and set current for each LED with a 32-level logarithmic scale plus four low-current settings down to 50μA for optimized efficiency, with a low quiescent current of only 50μA.
AEC Qualified |
No |
|---|---|
Compliance (Only Automotive Supports PPAP) |
Standard |
Function |
Charge Pump LED Driver |
MinimumInput Voltage (V) |
2.7 V |
MaximumInput Voltage (V) |
5.5 V |
Maximum Output Voltage (V) |
5.5 V |
Number of Regulated Output Channels |
6 |
Maximum Output Current per Channel |
30 mA |
Typical Overcurrent Protection Current |
N/A mA |
Switching Frequency (MHz) |
0.5 MHz |
Efficiency (%) |
88 % |
Quiescent Current (µA) |
1.5 mA |
Standby Quiescent Current (µA) |
1 µA |
SW RDS(ON) |
N/A Ω |
Dimming |
SDI One wire |
OVP |
Yes |
Soft Start |
Yes |
VFB |
N/A V |
OperatingTemperatureRange (°C) |
-40 to 85 °C |
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A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.
| PCN # | Issue Date | Implementation Date | Subject |
|---|---|---|---|
| PCN-2651 | 2023-11-13 | 2023-11-13 | Qualified Additional Fab Source, Assembly Test Sites, Die Revision, BOM, Datasheet, Tape and Reel Packing Quantity. |
