ZHCSL07C September 2019 – August 2021 TPS8802
PRODUCTION DATA
- 1 特性
- 2 應用
- 3 說明
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Typical Characteristics
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 System Power-up
- 8.3.2 LDO Regulators
- 8.3.3 Photo Chamber AFE
- 8.3.4 LED Driver
- 8.3.5 Carbon Monoxide Sensor AFE
- 8.3.6 Boost Converter
- 8.3.7 Interconnect Driver
- 8.3.8 Piezoelectric Horn Driver
- 8.3.9 Battery Test
- 8.3.10 AMUX
- 8.3.11 Analog Bias Block and 8 MHz Oscillator
- 8.3.12 Interrupt Signal Alerts
- 8.4 Device Functional Modes
- 8.5 Programming
- 8.6
Register Maps
- 8.6.1 REVID Register (Offset = 0h) [reset = 0h]
- 8.6.2 STATUS1 Register (Offset = 1h) [reset = 0h]
- 8.6.3 STATUS2 Register (Offset = 2h) [reset = 0h]
- 8.6.4 MASK Register (Offset = 3h) [reset = 0h]
- 8.6.5 CONFIG1 Register (Offset = 4h) [reset = 20h]
- 8.6.6 CONFIG2 Register (Offset = 5h) [reset = 2h]
- 8.6.7 ENABLE1 Register (Offset = 6h) [reset = 10h]
- 8.6.8 ENABLE2 Register (Offset = 7h) [reset = 0h]
- 8.6.9 CONTROL Register (Offset = 8h) [reset = 0h]
- 8.6.10 SLPTMR1 Register (Offset = 9h) [reset = 0h]
- 8.6.11 SLPTMR2 Register (Offset = Ah) [reset = 0h]
- 8.6.12 GPIO_AMUX Register (Offset = Bh) [reset = 0h]
- 8.6.13 CO_BATTEST Register (Offset = Ch) [reset = 0h]
- 8.6.14 CO Register (Offset = Dh) [reset = 0h]
- 8.6.15 VBOOST Register (Offset = Eh) [reset = F2h]
- 8.6.16 LEDLDO Register (Offset = Fh) [reset = 0h]
- 8.6.17 PH_CTRL Register (Offset = 10h) [reset = 0h]
- 8.6.18 LED_DAC_A Register (Offset = 11h) [reset = 0h]
- 8.6.19 LED_DAC_B Register (Offset = 12h) [reset = 0h]
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
封裝選項
機械數(shù)據(jù) (封裝 | 引腳)
- DCP|38
散熱焊盤機械數(shù)據(jù) (封裝 | 引腳)
- DCP|38
訂購信息
8.3.5 Carbon Monoxide Sensor AFE
Figure 8-5 Carbon Monoxide Detection Circuit Referenced to GND
Figure 8-6 Carbon Monoxide Detection Circuit Referenced to 300mVThe TPS8802 CO AFE connects to an electrochemical CO sensor. The amplifier converts the microamps of sensor current into a voltage readable by an ADC. This is achieved with a low-offset, low-power op-amp with configurable input, gain, and output resistors.