TCA6507 具有强度控制和关断状态的低压 7 位 I2C 和 SMBus LED 驱动器

TCA6507 描述

This 7-bit LED dimmer for the two-line bidirectional bus (I2C) is designed to control (or dim) LEDs via the I2C interface [serial clock (SCL), serial data (SDA)]. Without this device, the microprocessor or microcontroller must be actively involved in turning on and off the LEDs (per the required dimming rate), which uses valuable processor time and the overloads I2C bus. The TCA6507 alleviates this issue by limiting the number of operations required by the processor in blinking LEDs and, thus, helps to create a more efficient system

	TCA6507
Operating Temperature Range(°C)	-40 to 85
Rating	Catalog
fSCLK(Max)(MHz)	400
VCC(Min)(V)	1.65
VCC(Max)(V)	3.6
Pin/Package	12BGA MICROSTAR JUNIOR, 12X2QFN, 14TSSOP
Max Frequency(kHz)	400
Function	LED Driver
I2C Address	1000 101
Vcc range(V)	1.65 to 3.6
Enable Pin	Yes
Open–Drain I/O Type	Yes
5V Tolerant I/O	Yes

TCA6507 特性

• Seven LED Driver Outputs: On, Off, Blinking, Fading at Programmable Rates
• Open-Drain Outputs Directly Drive LEDs to 40 mA Max
• Can Be Configured Into Two Independent Banks of LED Drivers
• Widely Programmable Blink Rates, Fade-On and Fade-Off Rates and Maximum Intensity
• LED Intensity Set Using Pulse Width Modulation (PWM)
• Outputs Not Used as LED Drivers Can Be Used as Regular General-Purpose Open-Drain Outputs
• 16 Steps of Maximum Intensity Control from Fully-Off to Fully-On States
• 256 Intensity Levels During Fade-On or Fade-Off for Smooth Perceived Transition
• Operating Power-Supply Voltage Range of 1.65 V to 3.6 V
• EVM Available
• Schmitt-Trigger Action Allows Slow Input Transition and Better Switching Noise Immunity at the Inputs
  • Vhys = 0.18 V Typ at 1.8 V
  • Vhys = 0.25 V Typ at 2.5 V
  • Vhys = 0.33 V Typ at 3.3 V
• 5.5-V Tolerant Open-Drain Outputs
• Low Standby Current with Shutdown Capability for Additional Power Savings
• Internal Power-On Reset
• Internal Oscillator Requires No External Components
• Programmed Through I2C Bus Interface Logic Compatible With SMBus
• 400-kHz Fast I2C Bus

TCA6507 芯片订购指南

器件	状态		价格（美元） | Quantity	封装 | 引脚	封装数量 | 封装载体	丝印标记
TCA6507PW	ACTIVE	-40 to 85	0.90 | 1ku	TSSOP (PW) | 14	90 | TUBE
TCA6507PWG4	ACTIVE	-40 to 85	0.90 | 1ku	TSSOP (PW) | 14	90 | TUBE
TCA6507PWR	ACTIVE	-40 to 85	0.75 | 1ku	TSSOP (PW) | 14	2000 | LARGE T&R
TCA6507PWRG4	ACTIVE	-40 to 85	0.75 | 1ku	TSSOP (PW) | 14	2000 | LARGE T&R
TCA6507RUER	ACTIVE		0.75 | 1ku	X2QFN (RUE) | 12	3000 | LARGE T&R
TCA6507ZXUR	ACTIVE	-40 to 85	0.75 | 1ku	BGA MICROSTAR JUNIOR (ZXU) | 12	2500 | LARGE T&R

TCA6507 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
TCA6507PW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TCA6507PW	TCA6507PW
TCA6507PWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TCA6507PWG4	TCA6507PWG4
TCA6507PWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TCA6507PWR	TCA6507PWR
TCA6507PWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	TCA6507PWRG4	TCA6507PWRG4
TCA6507RUER	TBD	Call TI	Call TI	TCA6507RUER	TCA6507RUER
TCA6507ZXUR	Green (RoHS & no Sb/Br)	SNAGCU	Level-1-260C-UNLIM	TCA6507ZXUR	TCA6507ZXUR

TCA6507 应用技术支持与电子电路设计开发资源下载

1. TCA6507 数据资料 dataSheet 下载.PDF
2. TI 德州仪器照明解决方案产品选型与价格 . xls
3. 照明和显示屏电源选择指南 (PDF 1427 KB)
4. 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
5. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A) (PDF 2206 KB)
6. PowerPADTM Made Easy (PDF 57 KB)
7. 标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
8. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
9. 所选封装材料的热学和电学性质 (PDF 645 KB)
10. 高速数据转换 (PDF 1967 KB)

TCA6507 相关工具

名称	型号	公司	工具/软件类型
TCA6507 评估模块	TCA6507EVM	Texas Instruments	开发电路板/EVM