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.

• 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

• Features
• 2LED drivers, 1PD amp, CO amp, Boost converter, Horn driver
• Operating temperature range (C)
• -40 to 85
• Vs (Min) (V)
• 2
• Interface type
• I2C
• Vs (Max) (V)
• 15.6
• Rating
• Catalog

TPS8802的完整型号有：TPS8802DCPR，以下是这些产品的关键参数及官网采购报价：

TPS8802DCPR，工作温度：-40 to 85，封装：HTSSOP (DCP)-38，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网TPS8802DCPR的批量USD价格：1.05（1000+）

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 (...)