LP5569RTWR Clock Timer ICS LED LED Lighting Drivers Nine-Channel I2C RGB LED Driver
timer ic chip
,time delay ic chip
LP5569RTWR Clock Timer ICS LED LED Lighting Drivers Nine-Channel I2C RGB LED Driver
1 Features
- Supply Voltage Range: 2.5 V–5.5 V
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Nine High-Accuracy Current Sinks
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– 25.5 mA Maximum per Channel
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– 8-Bit Individual Current Control
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– 12-Bit 20-kHz Internal Individual PWM Control Without Audio Noise
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Three Programmable LED Engines
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– Independent Illumination Control Without Active Microcontroller Control
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– Synchronization Among Multiple Devices
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– Up to 256 Instructions in SRAM Memory for Storing Sequences of Lighting Patterns
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– LP5523- and LP55231-Device-Compatible Command Set
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Flexible Dimming Control
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– I2C Dimming Control
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– PWM Direct-Input Dimming
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– PWM Input Frequency: 100-Hz to 20-kHz
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Adaptive High-Efficiency Charge-Pump Control for Driving High-VF LEDs With Low Battery Voltage
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Master Fader Control Allows Dimming of Multiple LEDs by Writing to Only One Register to Reduce the I2C Bus Traffic
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2-μA Low Standby Current and 10-μA in Automatic Power-Save Mode When LEDs Are Inactive
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POR, UVLO, and TSD Protection
2 Applications
LED Lighting, Indicator Lights, and Fun Lights for:
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Smart Speaker
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Smart Home Appliance
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Doorbell
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Electric Lock
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Smoke Detector
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Thermostat
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Set-Top Box
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Smart Router
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Bluetooth® Headset
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Cell Phone
3 Description
The LP5569 device is a programmable, easy-to-use 9-channel I2C LED driver designed to produce lighting effects for various applications. The LED driver is equipped with an internal SRAM memory for user- programmed sequences and three programmable LED engines, which allow operation without processor control. Autonomous operation reduces system power consumption when the processor is put in sleep mode.
A high-efficiency charge pump enables the driving of LEDs with high VF, even with 2.5-V input voltage. The LP5569 LED driver maintains good efficiency over a wide operational voltage range by autonomously selecting the best charge-pump gain based on LED forward voltage requirements.
The LP5569 device enters power-save mode when LEDs are not active, lowering idle-current consumption considerably. A flexible digital interface allows the connection of up to eight LP5569 devices with a unique I2C slave address for each device in the same system, which supports synchronization of the lighting effects among all devices.
Device Information
|
PART NUMBER |
PACKAGE |
BODY SIZE (NOM) |
|
LP5569 |
WQFN (24) |
4.00 mm × 4.00 mm |
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