TPS92638QPWPRQ1，新汽車車燈和尾燈驅動器30000PCS深圳庫存
1 特性
1• 符合汽車類應用 要求
– 器件溫度等級 1：–40°C 至 125°C 的環(huán)境工作
溫度范圍
– 器件 HBM ESD 分類等級 H2
– 器件 CDM ESD 分類等級 C3B
• 提供功能安全
– 可幫助進行功能安全系統(tǒng)設計的可用文檔
• 具有模擬和 PWM 調光功能的 8 通道 LED 驅動器
• 寬輸入電壓范圍：5V 至 40V
• 由基準電阻器設定的可調恒定輸出電流
– 最大電流：每通道 70mA
– 最大電流：并行工作模式下為 560mA
– 精度：每通道 ±3%
– 精度：每個器件 ±4%
• PWM 調光輸入 (PWM)
– 開/關延時：25μs（典型值），45μs（最大值）
• 4 組 PWM 調光功能，可控制 8 個通道
• 通過去毛刺脈沖實現(xiàn) LED 開路和短路檢測
• 用于報告開路、短路和熱關斷故障的故障引腳，允
許并行總線最多連接 15 個器件
• 高溫電流折返功能，可防止熱關斷，具有可編程閾
值
• 一個用于停車燈電流設定點的電阻
• 一個用于尾燈電流設定點的電阻
• 工作結溫范圍：-40°C 至 150°C
• 封裝：20 引腳耐熱增強型 PWP 封裝 (PDSO)
2 應用
LED 照明 應用 （例如，日間行車燈、位置燈、霧
燈、后燈、剎車燈或尾燈、內部照明）
3 說明
TPS92638QPWPRQ1 是一款具有 PWM 調光控制功能的八通
道線性 LED 驅動器。其設計非常適合用于將多個 LED
燈串驅動至中等功率范圍。
1 Characteristics
1. Meet the requirements of automotive applications
- Device temperature level 1: - Working in environments ranging from 40 ° C to 125 ° C
temperature range
- Device HBM ESD classification level H2
- Device CDM ESD classification level C3B
• Provide functional safety
- Available documents that can assist in designing functional safety systems
8-channel LED driver with analog and PWM dimming function
Wide input voltage range: 5V to 40V
Adjustable constant output current set by reference resistor
- Maximum current: 70mA per channel
- Maximum current: 560mA in parallel operation mode
- Accuracy: ± 3% per channel
- Accuracy: ± 4% per device
PWM Dimming Input (PWM)
- On/off delay: 25 μ s (typical value), 45 μ s (maximum value)
4 sets of PWM dimming functions, capable of controlling 8 channels
• LED open circuit and short circuit detection through burr pulses
Fault pins for reporting open circuit, short circuit, and thermal shutdown faults, allowing
Allow parallel buses to connect up to 15 devices
High temperature current reversal function, which can prevent thermal shutdown and has programmable threshold
value
A resistor for the current set point of the parking light
A resistor for the tail lamp current setpoint
Working junction temperature range: -40 ° C to 150 ° C
Package: 20 pin heat resistant enhanced PWP package (PDSO)
2 Applications
LED lighting applications (such as daytime running lights, position lights, fog
Lights, rear lights, brake lights or taillights, interior lighting)
3 Description
TPS92638-Q1 is an octopus with PWM dimming control function
Linear LED driver. Its design is very suitable for integrating multiple LEDs
The light string is driven to a medium power range.
該器件可驅動多達八個燈串，每個燈串上可有一到三個
LED，每個通道的總電流高達 70mA�？赏ㄟ^將多個輸
出并行以提供高達 560mA 的驅動電流。
在多燈串 應用中，該器件的優(yōu)勢在于支持 LED 燈串進
行共陰極連接。因此，對于具有低端電流感應功能的系
統(tǒng)而言，只需要一條回線即可，而無需為每個 LED 燈
串配一條回線。
該器件具有在高電流和低電流之間切換 LED 電流的能
力，適用于停車燈和尾燈 應用�？赏ㄟ^兩個基準電阻
為每個輸出設置這兩種 LED 電流電平。
該器件包含溫度監(jiān)控器，可在集成電路 (IC) 結溫超過
溫度閾值時降低 LED 驅動電流。溫度閾值可通過外部
電阻進行編程。將 TEMP 引腳接地面可禁用熱電流監(jiān)
視功能�？稍诔鰪S程序中選擇將結溫以模擬電壓的形式
輸出。
This device can drive up to eight light strings, with one to three on each light string
LED, with a total current of up to 70mA per channel. Multiple inputs can be
To provide a driving current of up to 560mA in parallel.
In multi light string applications, the advantage of this device is that it supports LED light string input
Line common cathode connection. Therefore, for systems with low end current sensing function
Generally speaking, only one return line is needed, without the need for each LED light
String a return line.
This device has the ability to switch LED current between high and low currents
Power, suitable for parking and taillight applications. Can be achieved through two reference resistors
Set these two LED current levels for each output.
This device includes a temperature monitor that can be used when the junction temperature of an integrated circuit (IC) exceeds
Reduce the LED driving current at the temperature threshold. The temperature threshold can be achieved through external
Programming resistors. Grounding the TEMP pin can disable thermal current monitoring
Visual function. The junction temperature can be selected as an analog voltage in the factory program
Output.
