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LP8861QPWPRQ1
+StücklisteIC LED DRVR RGLTR PWM 20HTSSOP
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HerstellerTexas Instruments
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Herstellerteil #LP8861QPWPRQ1
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Paket HTSSOP-20
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Auf Lager2373
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Spezifikationen
| Attribut | Wert |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | Automotive, AEC-Q100 |
| Part Status | Active |
| Type | DC DC Regulator |
| Topology | SEPIC, Step-Up (Boost) |
| Internal Switch(s) | Yes |
| Number of Outputs | 4 |
| Voltage - Supply (Min) | 4.5V |
| Voltage - Supply (Max) | 40V |
| Voltage - Output | 45V |
| Current - Output / Channel | 100mA |
| Frequency | 300kHz ~ 2.2MHz |
| Dimming | PWM |
| Applications | Automotive, Backlight |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
Übersicht
Description
Key features include dynamic headroom control, which optimizes power efficiency by adjusting the LED current in response to changes in input voltage or LED forward voltage. It also offers PWM dimming for brightness control, fault detection for enhanced safety, and thermal protection mechanisms. The LP8861QPWPRQ1 is AEC-Q100 qualified, ensuring it meets rigorous automotive standards for quality and reliability. Its versatility in handling various lighting configurations and efficiency in power management make it an ideal choice for modern automotive LED applications.
Equivalent
1. Linear Technology LT3965 - LED driver with high current accuracy.
2. Maxim Integrated MAX16832A - High-voltage LED driver.
3. ON Semiconductor NCL30160 - Dimmable constant current LED driver.
When selecting alternatives, ensure compatibility in terms of electrical specifications and features for your specific application.
Features
Key features include adaptive voltage control, which optimizes power efficiency by adjusting the output voltage based on LED load, and spread spectrum modulation to reduce electromagnetic interference (EMI). It also supports pulse-width modulation (PWM) and analog dimming for flexible brightness control. The LP8861QPWPRQ1 comes with diagnostic features such as open/short LED detection and thermal shutdown protection to enhance system reliability.
The device is AEC-Q100 qualified, ensuring it meets stringent automotive quality standards, and is housed in a compact HTSSOP package, making it suitable for space-constrained applications.
Pinout
The primary functions of the LP8861QPWPRQ1 include:
- Driving a string of LED lights efficiently in backlighting applications.
- Providing boost DC-DC conversion to supply the necessary voltage for the LED string.
- Supporting PWM dimming control to adjust LED brightness levels.
- Offering protection features such as overcurrent, overvoltage, and thermal protection to ensure safe operation.
This IC is used to control and power LED panels in automotive displays, dashboards, and lighting systems. For detailed pin configuration and specific functionalities, referring to the official datasheet is recommended.