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Orders Over
$5000TI LP5521YQ/NOPB
LED Lighting Drivers 3 Ch Prog Led Driver LLP
Brands: TI
Mfr.Part #: LP5521YQ/NOPB
Datasheet: LP5521YQ/NOPB Datasheet (PDF)
Package/Case: WQFN-24
Product Type: LED Drivers
RoHS Status:
Stock Condition: 8,603 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
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LP5521YQ/NOPB General Description
The LP5521 is a three-channel LED driver designed to produce variety of lighting effects for mobile devices. A high-efficiency charge pump enables LED driving over full Li-Ion battery voltage range. The device has a program memory for creating variety of lighting sequences. When program memory has been loaded, LP5521 can operate autonomously without processor control allowing power savings.
The device maintains excellent efficiency over a wide operating range by automatically selecting proper charge pump gain based on LED forward voltage requirements and is able to automatically enter power-save mode, when LED outputs are not active and thus lowering current consumption.
Three independent LED channels have accurate programmable current sources and PWM control. Each channel has program memory for creating desired lighting sequences with PWM control.
The LP5521 has a flexible digital interface. Trigger I/O and a 32-kHz clock input allow synchronization between multiple devices. Interrupt output can be used to notify processor, when LED sequence has ended. The LP5521 has four pin selectable I2C-compatible addresses. This allows connecting up to four parallel devices in one I2C-compatible bus. GPO and INT pins can be used as a digital control pin for other devices.
The LP5521 requires only four small, low-cost ceramic capacitors.
Comprehensive application tools are available, including command compiler for easy LED sequence programming.
For all available packages, see the orderable addendum at the end of the data sheet.Features
- Adaptive Charge Pump With 1× and 1.5× Gain Provides Up to 95% LED Drive Efficiency
- Charge Pump with Soft Start and Overcurrent, Short-Circuit Protection
- Low Input Ripple and EMI
- Very Small Solution Size, No Inductor or Resistors Required
- 200-nA Typical Shutdown Current
- Automatic Power Save Mode
- I2C-Compatible Interface
- Independently Programmable Constant Current Outputs with 8-Bit Current Setting and 8-Bit PWM Control
- Typical LED Output Saturation Voltage 50 mV and Current Matching 1%
- Three Program Execution Engines with Flexible Instruction Set
- Autonomous Operation Without External Control
- Large SRAM Program Memory
- Two General Purpose Digital Outputs
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Number of channels | 3 | LED current per channel (mA) | 25.5 |
| LED configuration | Parallel | Program memory | Yes |
| Topology | Charge pump | Programmable ramp control | Yes |
| Vin (min) (V) | 2.7 | Vin (max) (V) | 5.5 |
| Iout (max) (A) | 0.0765 | Features | Analog/PWM mixed dimming, Constant current, Current control, I2C control, Power-save mode, Programmable lighting engines |
| Iq (typ) (mA) | 1.5 | Shutdown current (ISD) (typ) (µA) | 0.2 |
| Operating temperature range (°C) | -30 to 85 |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
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Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.0% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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Step1 :Product
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Step2 :Vacuum packaging
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![Anti-static bag]( "Anti-static bag")
Step3 :Anti-static bag
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Step4 :Individual packaging
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Step5 :Packaging boxes
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Step6 :bar-code shipping tag
All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
We provide high quality products, thoughtful service and after sale guarantee
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We have rich products, can meet your various needs.
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Minimum order quantity starts from 1pcs.
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![shipping]( "shipping")
Lowest international shipping fee starts from $0.00
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![guarantee]( "guarantee")
365 days quality guarantee for all products
