ZHCSLS0B July 2022 – April 2024 TPS929240-Q1
PRODUCTION DATA
- 1
- 1 特性
- 2 應用
- 3 說明
- 4 Pin Configuration and Functions
- 5 Specifications
-
6 Detailed Description
- 6.1 Overview
- 6.2 Functional Block Diagram
- 6.3
Feature Description
- 6.3.1 Device Bias and Power
- 6.3.2 Constant Current Output
- 6.3.3 PWM Dimming
- 6.3.4 FAIL-SAFE State Operation
- 6.3.5 On-Chip, 8-Bit, Analog-to-Digital Converter (ADC)
- 6.3.6
Diagnostic and Protection in NORMAL State
- 6.3.6.1 VBAT Undervoltage Lockout Diagnostics in NORMAL state
- 6.3.6.2 Low-Supply Warning Diagnostics in NORMAL State
- 6.3.6.3 Supply Undervoltage Diagnostics in NORMAL State
- 6.3.6.4 Reference Diagnostics in NORMAL state
- 6.3.6.5 Pre-Thermal Warning in NORMAL state
- 6.3.6.6 Overtemperature Protection in NORMAL state
- 6.3.6.7 Overtemperature Shutdown in NORMAL state
- 6.3.6.8 LED Open-Circuit Diagnostics in NORMAL state
- 6.3.6.9 LED Short-Circuit Diagnostics in NORMAL state
- 6.3.6.10 Single-LED Short-Circuit Detection in NORMAL state
- 6.3.6.11 EEPROM CRC Error in NORMAL state
- 6.3.6.12 Communication Loss Diagnostic in NORMAL State
- 6.3.6.13 Fault Masking in NORMAL state
- 53
- 6.3.7
Diagnostic and Protection in FAIL-SAFE states
- 6.3.7.1 Supply Undervoltage Lockout Diagnostics in FAIL-SAFE states
- 6.3.7.2 Low-Supply Warning Diagnostics in FAIL-SAFE states
- 6.3.7.3 Supply Undervoltage Diagnostics in FAIL-SAFE State
- 6.3.7.4 Reference Diagnostics in FAIL-SAFE states
- 6.3.7.5 Pre-Thermal Warning in FAIL-SAFE state
- 6.3.7.6 Overtemperature Protection in FAIL-SAFE state
- 6.3.7.7 Overtemperature Shutdown in FAIL-SAFE state
- 6.3.7.8 LED Open-Circuit Diagnostics in FAIL-SAFE state
- 6.3.7.9 LED Short-Circuit Diagnostics in FAIL-SAFE state
- 6.3.7.10 Single-LED Short-Circuit Detection in FAIL-SAFE state
- 6.3.7.11 EEPROM CRC Error in FAIL-SAFE State
- 6.3.7.12 Fault Masking in FAIL-SAFE state
- Diagnostics Table in FAIL-SAFE State
- 6.3.8 OFAF Setup In FAIL-SAFE state
- 6.3.9 ERR Output
- 6.4 Device Functional Modes
- 6.5 Programming
- 6.6 Register Maps
- 7 Application and Implementation
- 8 Device and Documentation Support
- 9 Revision History
- 10Mechanical, Packaging, and Orderable Information
封裝選項
請參考 PDF 數據表獲取器件具體的封裝圖。
機械數據 (封裝 | 引腳)
- DCP|38
散熱焊盤機械數據 (封裝 | 引腳)
- DCP|38
訂購信息
6.3.2.2 64-Step Programmable High-Side Constant-Current Output
TPS929240-Q1 has 24 channels of high-side current sources. Each channel has its own enable configuration register ENOUTXn. Setting ENOUTXn to 1 enables the channel output; clearing the register to 0 disables the channel output. To completely turn off the channel current, the user can clear channel enable bit ENOUTXn to 0. Upon power up, ENOUTXn is automatically reset to 0 to avoid unwanted blinking.
Each OUTXn channel supports individual 64-step programmable current setting, also known as dot correction (DC). The DC feature can be used to set binning values for output LEDs or to calibrate the LEDs to achieve high brightness homogeneity based on external visual system to further save binning cost. The 6-bit register IOUTXn sets the current independently, where X is the channel group from A to H, n is the channel number from 0 to 2. Use the following equation to calculate the OUTXn current.
where
- IOUTXn is programmable from 0 to 63.
- X is from A to H, n is from 0 to 2 for different output channel.
- Use Equation 1 to calculate I(FULL_RANGE).