TPS8802

Name: TPS8802
Brand: TI
SKU: TPS8802
Price: 1.05 USD

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民用烟雾报警器模拟前端

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数据表

document-pdfAcrobat TPS8802 Smoke Alarm AFE 数据表 (Rev. C) (英文) PDF | HTML

TPS8802

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数据表

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产品详情

Number of input channels

2

Features

2LED drivers, 1PD amp, CO amp, Boost converter, Horn driver

Operating temperature range (°C)

-40 to 85

Vs (min) (V)

2

Vs (max) (V)

15.6

Interface type

I2C

Rating

Catalog

Number of input channels

2

Features

2LED drivers, 1PD amp, CO amp, Boost converter, Horn driver

Operating temperature range (°C)

-40 to 85

Vs (min) (V)

2

Vs (max) (V)

15.6

Interface type

I2C

Rating

Catalog

HTSSOP (DCP)

38

62.08 mm² 9.7 x 6.4

Photo Chamber AFE
- Dual 8-bit programmable current LED drivers
- Temperature compensation of LED current
- Ultra-low offset op-amp for photodiodes
- Programmable and bypassable gain stage
Carbon Monoxide Sensor AFE
- Ultra-low offset gain stage
- Programmable gain and reference
Horn Driver
- Self-resonant driver for three-terminal piezos
- PWM support for voice on two-terminal piezos
Power Management
- Programmable LDO for external microcontroller
- Boost converter for horn, interconnect
Interconnection bus for multi-alarm communication
Ultra-low power consumption
I²C serial interface
Programmable battery test load

Photo Chamber AFE
- Dual 8-bit programmable current LED drivers
- Temperature compensation of LED current
- Ultra-low offset op-amp for photodiodes
- Programmable and bypassable gain stage
Carbon Monoxide Sensor AFE
- Ultra-low offset gain stage
- Programmable gain and reference
Horn Driver
- Self-resonant driver for three-terminal piezos
- PWM support for voice on two-terminal piezos
Power Management
- Programmable LDO for external microcontroller
- Boost converter for horn, interconnect
Interconnection bus for multi-alarm communication
Ultra-low power consumption
I²C serial interface
Programmable battery test load

The TPS8802 integrates all of the regulators, amplifiers, and drivers required for a dual-wave photoelectric smoke alarm and carbon monoxide (CO) detection system. Its high flexibility is ideal for smoke alarm systems where precision and power consumption are critical.

The wide input voltage range combined with low standby power consumption and power-saving features support 10-year battery life operation from a single lithium primary battery. The TPS8802 also supports battery backup smoke alarms, seamlessly remaining powered when the mains supply drops or if the battery is disconnected.

The TPS8802 integrates all of the regulators, amplifiers, and drivers required for a dual-wave photoelectric smoke alarm and carbon monoxide (CO) detection system. Its high flexibility is ideal for smoke alarm systems where precision and power consumption are critical.

The wide input voltage range combined with low standby power consumption and power-saving features support 10-year battery life operation from a single lithium primary battery. The TPS8802 also supports battery backup smoke alarms, seamlessly remaining powered when the mains supply drops or if the battery is disconnected.

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	类型	项目标题		日期
*	数据表	TPS8802 Smoke Alarm AFE 数据表 (Rev. C)	PDF \| HTML	2021年 8月 9日
	EVM 用户指南	Using the TPS8802EVM (Rev. B)		2022年 7月 19日
	更多文献资料	Achieving 10-Year Battery Life with Smoke Alarm TPS8802	PDF \| HTML	2021年 10月 4日
	更多文献资料	Optimizing SNR in Smoke Alarm Photodiode Front Ends with TPS8802 and TPS8804	PDF \| HTML	2021年 10月 4日
	技术文章	Get Connected: A new blog series		2014年 1月 10日

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评估板

TPS8802EVM — EVM for TPS8802 residential smoke/CO detector/alarm

The TPS8802EVM is used to evaluate the TPS8802 smoke and CO detection analog front end and power management IC. The EVM allows for easy connection from the TPS8802 to a user-supplied photoelectric chamber and carbon monoxide sensor. The TPS8802 GUI interfaces with the EVM to quickly evaluate the (...)

用户指南: PDF