ZHCSIF5G December 2015 – July 2024 TPS99000-Q1
PRODUCTION DATA
- 1
- 1 特性
- 2 應用
- 3 說明
- 4 Pin Configuration and Functions
-
5 Specifications
- 5.1 Absolute Maximum Ratings
- 5.2 ESD Ratings
- 5.3 Recommended Operating Conditions
- 5.4 Thermal Information
- 5.5 Electrical Characteristics—Transimpedance Amplifier Parameters
- 5.6 Electrical Characteristics—Digital to Analog Converters
- 5.7 Electrical Characteristics—Analog to Digital Converter
- 5.8 Electrical Characteristics—FET Gate Drivers
- 5.9 Electrical Characteristics—Photo Comparator
- 5.10 Electrical Characteristics—Voltage Regulators
- 5.11 Electrical Characteristics—Temperature and Voltage Monitors
- 5.12 Electrical Characteristics—Current Consumption
- 5.13 Power-Up Timing Requirements
- 5.14 Power-Down Timing Requirements
- 5.15 Timing Requirements—Sequencer Clock
- 5.16 Timing Requirements—Host and Diagnostic Port SPI Interface
- 5.17 Timing Requirements—ADC Interface
- 5.18 Switching Characteristics
-
6 Detailed Description
- 6.1 Overview
- 6.2 Functional Block Diagram
- 6.3
Feature Description
- 6.3.1
Illumination Control
- 6.3.1.1 Illumination System High Dynamic Range Dimming Overview
- 6.3.1.2 Illumination Control Loop
- 6.3.1.3 Continuous Mode Operation
- 6.3.1.4
Discontinuous Mode Operation
- 6.3.1.4.1 Discontinuous Mode Pulse Width Limit
- 6.3.1.4.2 COMPOUT_LOW Timer in Discontinuous Operation
- 6.3.1.4.3 Dimming Within Discontinuous Operation Range
- 6.3.1.4.4 Multiple Pulse Heights to Increase Bit Depth
- 6.3.1.4.5 TIA Gain Adjustment
- 6.3.1.4.6 Current Limit in Discontinuous Mode
- 6.3.1.4.7 CMODE Big Cap Mode in Discontinuous Operation
- 6.3.2 Over-Brightness Detection
- 6.3.3 Analog to Digital Converter
- 6.3.4 Power Sequencing and Monitoring
- 6.3.5 DMD Mirror Voltage Regulator
- 6.3.6 Low Dropout Regulators
- 6.3.7 System Monitoring Features
- 6.3.8 Communication Ports
- 6.3.1
Illumination Control
- 6.4 Device Functional Modes
- 6.5 Register Maps
- 7 Application and Implementation
- 8 Power Supply Recommendations
- 9 Layout
- 10Device and Documentation Support
- 11Revision History
- 12Mechanical, Packaging, and Orderable Information
封裝選項
機械數據 (封裝 | 引腳)
- PZP|100
散熱焊盤機械數據 (封裝 | 引腳)
- PZP|100
訂購信息
9.1.5 Kelvin Sensing Connections
There are many places in the system design where the current through a signal path is measured by using a sense resistor in series with the signal path. In these cases, the resistor should be connected by using a “Kelvin” connection, or a “Force-Sense” connection. This means that two connections are made to the resistor that carry the high level of current, and two connections are made separately to measure the voltage across the resistor. This prevents the sense lines from being affected by the extra resistance of the copper traces, and makes the measurement more accurate. An example of the “Force-Sense” connection is shown in Figure 9-3.
Figure 9-3 Kelvin Sensing LayoutThe TPS99000-Q1 uses a sense resistor to measure the current delivered to the LEDs. These differential sense lines are the inputs to the part LS_SENSE_P and LS_SENSE_N. It is important to notice that although LS_SENSE_N may be electrically connected to ground by the netlist, this signal must be routed as a separate trace to prevent it from being affected by changes in the ground plane.