Overview
A4405KLPTR-T is an automotive-grade step-up DC-DC converter launched by Allegro MicroSystems, specially designed for automotive electronic systems. Known for its high efficiency, low noise and stable voltage output, the device provides a reliable voltage boost solution for LED lighting, power rails and other electrical equipment in harsh automotive environments.
Specifications
parameter | numerical value |
Input voltage range | 3.3V to 36V |
Output voltage range | up to 50V |
Output current | Up to 3A |
switching frequency | 400kHz to 2.2MHz |
efficiency | Up to 94% |
Quiescent current (Iq) | 5µA (typical, low power mode) |
Package Type | 16-pin TSSOP (with heat sink) |
Operating temperature range | -40°C to +150°C |
A4405KLPTR-T’s outstanding features
Wide Input Voltage Range
Supporting a wide input voltage range of 3.3V to 36V, the device is suitable for a variety of automotive power supply environments, including batteries and regulator outputs.
High-efficiency boost performance
has an efficiency of up to 94%, which can effectively reduce heat loss and meet the needs of equipment with high power requirements.
Flexible switching frequency adjustment
supports switching frequencies from 400kHz to 2.2MHz, allowing users to optimize the design based on EMI and efficiency requirements.
Robust automotive-grade features
meet automotive AEC-Q100 qualification and are capable of stable operation under high temperature, high voltage and transient conditions.
Integrated multiple protection functions
including over-current protection, over-voltage protection, under-voltage lockout (UVLO) and thermal shutdown ensure system reliability and safety.
The compact package design
uses a 16-pin TSSOP package with a heat sink to enhance thermal performance, suitable for space-constrained automotive electronic designs.
Application Areas
The A4405KLPTR-T is a high-performance boost solution designed for automotive electronics and is widely used in the following fields:
LED lighting systems
are used for boost driving of automotive headlights, taillights and interior LED lighting to provide stable power output.
Multi-rail power systems
provide boost support for high-voltage modules in automotive instrument clusters, entertainment systems, and navigation devices.
Automotive Sensors
Provides power support for automotive sensors and actuators that require high voltage power.
The powertrain system
provides efficient power conversion in the vehicle’s power electronics and energy recovery systems.
Comparative Analysis: A4405KLPTR-T vs. Other Boost Converters
Features/Specifications | A4405KLPTR-T | Other boost converters on the market |
Input voltage range | 3.3V to 36V | Typically 3V to 30V |
Output voltage range | Up to 50V | Less than 40V |
efficiency | Up to 94% | 90% or less |
Quiescent current (Iq) | 5µA (low power mode) | Typically 10µA or higher |
Operating temperature range | -40°C to +150°C | -40°C to +125°C |
Certification | AEC-Q100 (automotive grade certification) | Partially supported |
The A4405KLPTR-T offers significant advantages in input voltage range, output capability and efficiency, and provides designers with higher reliability assurance with automotive grade certification.
Manufacturer introduction: Allegro MicroSystems
Allegro MicroSystems is a leading global provider of high-performance power and sensing solutions, delivering innovative silicon products for the automotive, industrial and consumer markets. A4405KLPTR-T is its flagship model among step-up DC-DC converters, which meets the needs of various demanding automotive electronics applications with its efficient and stable performance.
Why choose A4405KLPTR-T?
The A4405KLPTR-T provides designers with a flexible and reliable power solution with its wide input voltage range, high efficiency performance, and automotive-grade certification. Its integrated protection features and flexible design options make it particularly suitable for the complex needs of automotive electronics.
FAQ
Q1: Does the A4405KLPTR-T support transient input voltage changes?
A: Yes, the device supports transient voltage changes common in automotive environments and can operate stably under high voltage transients. Its built-in voltage regulation and transient protection mechanisms can effectively absorb voltage spikes to ensure circuit reliability. In addition, its fast response characteristics can quickly adjust the output to avoid system failures caused by voltage fluctuations. Whether in cold start or load mutation conditions, the device can perform well and meet the high reliability requirements of automotive electronic systems.
Q2: Is this device suitable for high temperature environments?
A: Yes, the A4405KLPTR-T has an operating temperature range up to +150°C, making it suitable for harsh automotive electronic environments. Its thermal management design effectively reduces the impact of high temperature on performance, ensuring long-term operational stability. At the same time, the device’s high heat-resistant packaging enables it to work normally in extreme high-temperature areas such as the engine compartment. With this feature, it is widely used in powertrain control modules, body electronic systems, and other critical applications under high-temperature challenges.
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Product Details: Win Source – A4405KLPTR-T
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