Overview
The NCV887200D1R2G is an automotive-grade, non-synchronous boost controller produced by onsemi. This device is designed to drive an external N-channel MOSFET and features peak current mode control with internal slope compensation. It is suitable for a wide range of applications requiring high reliability and robust performance, particularly in automotive and industrial environments. The controller includes several protection features and operates over a wide input voltage range, making it versatile for various power management needs.
Key Specifications
| Characteristic | Symbol | Min | Max | Unit | |
|---|---|---|---|---|---|
| Input Voltage Range | VIN | 4.8 | - | 40 | Vdc |
| Load Dump Voltage | - | - | - | 45 | V |
| Switching Frequency | fs | 608 | 675 | 742 | kHz |
| Maximum Duty Cycle | Dmax | 91 | 92 | 93.5 | % |
| Soft-Start Time | tss | - | 1.9 | - | ms |
| Reference Voltage | Vref | 1.176 | 1.200 | 1.224 | V |
| Gate Drive Sourcing Current | Isrc | 400 | 575 | - | mA |
| Gate Drive Sinking Current | Isink | 400 | 575 | - | mA |
| Quiescent Current (Sleep Mode) | Iq,sleep | - | - | 2.0 | μA |
| Quiescent Current (No Switching) | Iq,off | - | - | 2.5 | mA |
| Quiescent Current (Switching, Normal Operation) | Iq,on | - | - | 6.0 | mA |
Key Features
- Peak Current Mode Control with Internal Slope Compensation: Ensures stable and efficient operation.
- Adjustable Output Voltage: Allows for flexible voltage regulation.
- Fixed Frequency Operation: Provides consistent switching frequency.
- Wide Input Voltage Range: Supports input voltages from 4.8 V to 40 Vdc, with a load dump capability of up to 45 V.
- Input Undervoltage Lockout (UVLO): Prevents operation below a specified voltage threshold.
- Internal Soft-Start: Reduces inrush current and output overshoot during startup.
- Low Quiescent Current Sleep Mode: Minimizes power consumption when the device is in sleep mode.
- Cycle-by-Cycle Current Limit Protection and Hiccup-Mode Overcurrent/Short-Circuit Protection: Enhances reliability and safety.
- Thermal Shutdown (TSD): Protects the device from overheating.
- Externally Synchronizable Switching Frequency: Allows synchronization with an external clock signal.
- AEC-Q100 Qualified and PPAP Capable: Meets stringent automotive quality standards.
Applications
The NCV887200D1R2G is designed for use in various automotive and industrial applications, including:
- Automotive Power Systems: Battery management, power distribution, and accessory power supplies.
- Industrial Power Supplies: High-reliability power conversion in industrial control systems, medical devices, and other critical applications.
- Renewable Energy Systems: Solar and wind power systems requiring robust and efficient power conversion.
- Aerospace and Defense: High-reliability power management in aerospace and defense applications.
Q & A
- What is the input voltage range of the NCV887200D1R2G?
The input voltage range is from 4.8 V to 40 Vdc, with a load dump capability of up to 45 V.
- What is the switching frequency of the NCV887200D1R2G?
The switching frequency is typically 675 kHz, with a range of 608 kHz to 742 kHz.
- Does the NCV887200D1R2G have built-in protection features?
Yes, it includes features such as cycle-by-cycle current limiting, hiccup-mode overcurrent and short-circuit protection, thermal shutdown, and input undervoltage lockout.
- How does the soft-start feature work in the NCV887200D1R2G?
The internal soft-start feature reduces inrush current and output overshoot during startup, ensuring a smooth and controlled power-up sequence.
- Is the NCV887200D1R2G suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for stringent automotive applications.
- Can the switching frequency of the NCV887200D1R2G be externally synchronized?
Yes, the device allows for external synchronization of the switching frequency.
- What is the quiescent current in sleep mode for the NCV887200D1R2G?
The quiescent current in sleep mode is typically 2.0 μA.
- Does the NCV887200D1R2G have thermal shutdown protection?
Yes, it includes thermal shutdown protection to prevent overheating.
- What is the reference voltage of the NCV887200D1R2G?
The reference voltage is typically 1.200 V, with a range of 1.176 V to 1.224 V.
- Is the NCV887200D1R2G Pb-free?
Yes, the device is Pb-free, complying with environmental regulations.
