ChongMing Group (HK) Int'l Co., Ltd
| Payment Terms | Paypal, Western Union, TT |
| Supply Ability | 50000 Pieces per Day |
| Delivery Time | The goods will be shipped within 3 days once received fund |
| Packaging Details | WQFN24 |
| Description | LED Driver IC 3 Output DC DC Regulator Switched Capacitor (Charge Pump) I²C Dimming 25.5mA 24-WQFN (5x4) |
| Minimum Operating Temperature | - 30 C |
| Maximum Operating Temperature | + 85 C |
| Mounting Style | SMD/SMT |
| Package / Case | QFN-24 |
| Packaging | Cut Tape |
| Height | 0.8 mm |
| Brand Name | Ti |
| Model Number | LP5521YQX/NOPB |
View Detail Information
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Product Specification
| Payment Terms | Paypal, Western Union, TT | Supply Ability | 50000 Pieces per Day |
| Delivery Time | The goods will be shipped within 3 days once received fund | Packaging Details | WQFN24 |
| Description | LED Driver IC 3 Output DC DC Regulator Switched Capacitor (Charge Pump) I²C Dimming 25.5mA 24-WQFN (5x4) | Minimum Operating Temperature | - 30 C |
| Maximum Operating Temperature | + 85 C | Mounting Style | SMD/SMT |
| Package / Case | QFN-24 | Packaging | Cut Tape |
| Height | 0.8 mm | Brand Name | Ti |
| Model Number | LP5521YQX/NOPB | ||
| High Light | timer ic chip ，time delay ic chip | ||
LP5521YQX/NOPB Clock Timer ICS LED Lighting Drivers 3 channel RGB/White LED driver with internal program memory and inte
1 Features
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
2 Applications
Fun and Indicator Lights
LCD Sub-Display Backlighting
Keypad RGB Backlighting and Phone Cosmetics
Vibra, Speakers, Waveform Generator
Blood Glucose Meter
Handheld POS Terminals
Electronic Access Control
Where RGB Indication is Needed
3 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.
Device Information
|
PART NUMBER |
PACKAGE |
BODY SIZE |
|
LP5521TM |
DSBGA (20) |
2.093 mm × 1.733 mm (MAX) |
|
LP5521YQ |
WQFN (24) |
5.00 mm × 4.00 mm (NOM) |
Company Details
Business Type:
Distributor/Wholesaler
Year Established:
2008
Total Annual:
5000000-7000000
Employee Number:
80~100
Ecer Certification：
Active Member
CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electron... CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electron...
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