Overview
The NCV887100D1R2G is an automotive-grade non-synchronous boost controller produced by ON Semiconductor. This device is designed to drive an external N-channel MOSFET and features peak current mode control with internal slope compensation. It is tailored for automotive applications, ensuring robust performance and safety through various protection mechanisms.
The controller offers a wide input voltage range of 3.2 V to 40 Vdc, with a peak transient voltage capability of 45 V, making it suitable for harsh automotive environments. It also includes an internal regulator for the gate driver and supports fixed frequency operation, which can be externally synchronized.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Dc Supply Voltage (VIN) | VIN | -0.3 | 40 | V | |
| Peak Transient Voltage (Load Dump on VIN) | 45 | V | |||
| Maximum Duty Cycle | Dmax | 86 | 88 | 90 | % |
| Switching Frequency | fs | 153 | 170 | 187 | kHz |
| Soft-Start Time | tss | 6.0 | 7.4 | 8.8 | ms |
| Current Limit Trip Voltage | Vcl | 360 | 400 | 440 | mV |
| Gate Drive Sourcing Current | Isrc | 800 | mA | ||
| Gate Drive Sinking Current | Isink | 600 | mA | ||
| Drive Voltage | VDRV | 10.5 | V | ||
| Operating Junction Temperature | TJ | -40 | 150 | °C | |
| Storage Temperature Range | -65 | 150 | °C |
Key Features
- Peak Current Mode Control with Internal Slope Compensation: Ensures stable and efficient operation by deriving the PWM ramp signal directly from the power switch current.
- Fixed Frequency Operation: Supports fixed frequency operation, which can be externally synchronized for better system integration.
- Wide Input Voltage Range: Operates from 3.2 V to 40 Vdc with a peak transient voltage capability of 45 V.
- Internal Soft-Start and Protection Mechanisms: Includes internally-set soft-start, undervoltage lockout, cycle-by-cycle current limiting, hiccup-mode short-circuit protection, and thermal shutdown.
- Low Quiescent Current Sleep Mode: Features low quiescent current in sleep mode to minimize power consumption when not in active operation.
- AEC-Q100 Qualified and PPAP Capable: Meets stringent automotive standards for reliability and performance.
- Compact SOIC-8 Package: Facilitates easy integration into space-constrained applications.
Applications
The NCV887100D1R2G is designed for various automotive applications, including:
- Infotainment Systems: Provides reliable power supply for audio and video systems in vehicles.
- Audio Amplifiers: Supports the power requirements of high-fidelity audio systems.
- Electronic Power Steering (EPS): Ensures stable and efficient power supply for EPS systems.
- Primary and Secondary Automotive Systems: Suitable for use in both primary and secondary systems within vehicles, such as battery management and accessory power supplies.
Q & A
- What is the input voltage range of the NCV887100D1R2G?
The input voltage range is from 3.2 V to 40 Vdc, with a peak transient voltage capability of 45 V.
- What type of control scheme does the NCV887100D1R2G use?
The device uses peak current mode control with internal slope compensation.
- What are the key protection features of the NCV887100D1R2G?
The device includes undervoltage lockout, cycle-by-cycle current limiting, hiccup-mode short-circuit protection, and thermal shutdown.
- What is the operating junction temperature range of the NCV887100D1R2G?
The operating junction temperature range is from -40°C to 150°C.
- Is the NCV887100D1R2G AEC-Q100 qualified?
Yes, the device is AEC-Q100 qualified and PPAP capable, meeting stringent automotive standards.
- What is the package type of the NCV887100D1R2G?
The device is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package.
- What are some typical applications of the NCV887100D1R2G?
Typical applications include infotainment systems, audio amplifiers, electronic power steering (EPS), and other primary and secondary automotive systems.
- How does the NCV887100D1R2G manage soft-start?
The device features an internally-set soft-start mechanism to ensure smooth startup and prevent inrush currents.
- What is the quiescent current in sleep mode for the NCV887100D1R2G?
The quiescent current in sleep mode is typically around 2.0 µA.
- Can the switching frequency of the NCV887100D1R2G be externally synchronized?
Yes, the switching frequency can be externally synchronized for better system integration.
