JAJSIR7C
October 2019 – August 2021
TPS8804
PRODUCTION DATA
1
特長
2
アプリケーション
3
概要
4
Revision History
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
System Power-up
7.3.2
LDO Regulators
7.3.2.1
Power LDO Regulator
7.3.2.2
Internal LDO Regulator
7.3.2.3
Microcontroller LDO Regulator
7.3.3
Photo Chamber AFE
7.3.3.1
Photo Input Amplifier
7.3.3.2
Photo Gain Amplifier
7.3.4
LED Driver
7.3.4.1
LED Current Sink
7.3.4.2
LED Voltage Supply
7.3.5
Carbon Monoxide Sensor AFE
7.3.5.1
CO Transimpedance Amplifier
7.3.5.2
CO Connectivity Test
7.3.6
SLC Interface Transmitter and Receiver
7.3.6.1
SLC Transmitter
7.3.6.2
SLC Receiver
7.3.7
AMUX
7.3.8
Analog Bias Block and 8 MHz Oscillator
7.3.9
Interrupt Signal Alerts
7.4
Device Functional Modes
7.4.1
Fault States
7.4.1.1
MCU LDO Fault
7.4.1.2
Over-Temperature Fault
7.5
Programming
7.6
Register Maps
7.6.1
REVID Register (Offset = 0h) [reset = 0h]
7.6.2
STATUS1 Register (Offset = 1h) [reset = 0h]
7.6.3
STATUS2 Register (Offset = 2h) [reset = 0h]
7.6.4
MASK Register (Offset = 3h) [reset = 0h]
7.6.5
CONFIG1 Register (Offset = 4h) [reset = 20h]
7.6.6
CONFIG2 Register (Offset = 5h) [reset = 0h]
7.6.7
ENABLE1 Register (Offset = 6h) [reset = 0h]
7.6.8
ENABLE2 Register (Offset = 7h) [reset = 0h]
7.6.9
CONTROL Register (Offset = 8h) [reset = 0h]
7.6.10
GPIO_AMUX Register (Offset = Bh) [reset = 0h]
7.6.11
COSW Register (Offset = Ch) [reset = 0h]
7.6.12
CO Register (Offset = Dh) [reset = 0h]
7.6.13
LEDLDO Register (Offset = Fh) [reset = 0h]
7.6.14
PH_CTRL Register (Offset = 10h) [reset = 0h]
7.6.15
LED_DAC_A Register (Offset = 11h) [reset = 0h]
7.6.16
LED_DAC_B Register (Offset = 12h) [reset = 0h]
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Photo Amplifier Component Selection
8.2.2.2
LED Driver Component Selection
8.2.2.3
LED Voltage Supply Selection
8.2.2.4
Regulator Component Selection
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.1.1
Photo Amplifier Layout
10.1.2
CO Amplifier Layout
10.1.3
Ground Plane Layout
10.2
Layout Example
11
Device and Documentation Support
11.1
ドキュメントの更新通知を受け取る方法
11.2
サポート・リソース
11.3
Trademarks
11.4
静電気放電に関する注意事項
11.5
用語集
12
Mechanical, Packaging, and Orderable Information
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
DCP|38
MPDS520B
サーマルパッド・メカニカル・データ
DCP|38
PPTD170A
発注情報
jajsir7c_oa
jajsir7c_pm
8.2
Typical Application
Figure 8-1
Dual-Wave Photoelectric Smoke and CO Detector