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LP5569 数据表(PDF) 1 Page - Texas Instruments |
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LP5569 数据表(HTML) 1 Page - Texas Instruments |
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1 / 93 page  VIN AGND SCL SDA LED0 LED1 LED2 LED3 EN/PWM CLK GPIO/TRIG/INT ADDR LED4 LED5 LED6 LED7 LED8 C1– C1+ VOUT COUT 1 F CFLY1 1 F CIN 1 F µC C2– C2+ CFLY2 1 F V1P8 PGND 2.5 V to 5.5 V 1.8 V VIN VIN Copyright © 2017, Texas Instruments Incorporated Product Folder Order Now Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. LP5569 SNVSAP8A – JULY 2017 – REVISED SEPTEMBER 2017 LP5569 Nine-Channel I2C RGB LED Driver With Engine Control and Charge Pump 1 1 Features 1 • Supply Voltage Range: 2.5 V–5.5 V • Nine High-Accuracy Current Sinks – 25.5 mA Maximum per Channel – 8-Bit Individual Current Control – 12-Bit 20-kHz Internal Individual PWM Control Without Audio Noise • Three Programmable LED Engines – Independent Illumination Control Without Active Microcontroller Control – Synchronization Among Multiple Devices – Up to 256 Instructions in SRAM Memory for Storing Sequences of Lighting Patterns – LP5523- and LP55231-Device-Compatible Command Set • Flexible Dimming Control – I2C Dimming Control – PWM Direct-Input Dimming – PWM Input Frequency: 100-Hz to 20-kHz • Adaptive High-Efficiency Charge-Pump Control for Driving High-VF LEDs With Low Battery Voltage • Master Fader Control Allows Dimming of Multiple LEDs by Writing to Only One Register to Reduce the I2C Bus Traffic • 2-µA Low Standby Current and 10-µA in Automatic Power-Save Mode When LEDs Are Inactive • POR, UVLO, and TSD Protection 2 Applications LED Lighting, Indicator Lights, and Fun Lights for: • Smart Speaker • Smart Home Appliance • Doorbell • Electric Lock • Smoke Detector • Thermostat • Set-Top Box • Smart Router • Bluetooth® Headset • 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(1) PART NUMBER PACKAGE BODY SIZE (NOM) LP5569 WQFN (24) 4.00 mm × 4.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Simplified Schematic |
类似零件编号 - LP5569 |
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类似说明 - LP5569 |
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