Overview
The NCV7724B, also available in the package variant NCV7724DQBR2G, is an eight-channel half-bridge driver designed by onsemi for automotive and industrial motion control applications. This device features independent controls and diagnostics, allowing the drivers to operate in forward, reverse, brake, and high impedance states. It is controlled via a 16-bit SPI interface and supports daisy chain compatibility. The NCV7724B is AEC-Q100 qualified and PPAP capable, ensuring it meets stringent automotive standards.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VSx) | VSx | -0.3 | - | 45 | V |
| Output Current (Typical/Peak) | Iout | 0.5 A / 1.1 A | - | - | A |
| RDS(on) High-Side/Low-Side | RDS(on)HS/LS | 0.8 Ω | - | 1.8 Ω | Ω |
| SPI Communication Frequency | Fclk | - | - | 5.0 MHz | MHz |
| Operating Temperature Range | TJ | -40°C | - | 150°C | °C |
| VCC Power-on Reset Threshold | VCCpor | 2.70 V | 2.90 V | - | V |
| VSx Undervoltage Detection Threshold | VSxuv | 3.5 V | 4.1 V | 4.5 V | V |
| VSx Overvoltage Detection Threshold | VSxov | 29.5 V | 33.5 V | 37.5 V | V |
Key Features
- Eight independent half-bridge output channels, allowing for four independent full-bridge configured loads.
- Low quiescent current sleep mode with active-high enable function (EN).
- Integrated freewheeling protection for both high-side and low-side drivers.
- External PWM control for outputs 1 and 2.
- 5 MHz SPI communication interface with 16-bit frame error detection.
- Daisy chain compatible with multiple devices.
- Compliance with 3.3 V and 5 V systems.
- Undervoltage and overvoltage lockout protection.
- Per channel fault reporting, overcurrent protection, and overtemperature protection.
- Underload detection for both high-side and low-side drivers.
- Exposed pad package for improved thermal performance.
Applications
- Automotive motion control systems.
- Industrial motion control applications.
- DC motor management for HVAC systems.
Q & A
- What is the NCV7724B used for?
The NCV7724B is used for automotive and industrial motion control applications, providing eight independent half-bridge output channels.
- How is the NCV7724B controlled?
The device is controlled via a 16-bit SPI interface and supports external PWM control for outputs 1 and 2.
- What are the key protection features of the NCV7724B?
The device includes undervoltage and overvoltage lockout, overcurrent protection, overtemperature protection, and underload detection for both high-side and low-side drivers.
- What is the maximum operating temperature of the NCV7724B?
The maximum operating temperature is 150°C.
- Is the NCV7724B AEC-Q100 qualified?
Yes, the NCV7724B is AEC-Q100 qualified and PPAP capable.
- What is the typical output current of the NCV7724B?
The typical output current is 0.5 A with a peak current of 1.1 A.
- Can the NCV7724B be daisy-chained with other devices?
Yes, the device is daisy chain compatible with multiple devices.
- What is the RDS(on) of the high-side and low-side drivers?
The RDS(on) is typically 0.8 Ω for both high-side and low-side drivers.
- What are the supply voltage ranges for the NCV7724B?
The supply voltage range is from 5.5 V to 40 V for VSx and from 3.15 V to 5.25 V for VCC.
- Does the NCV7724B support 3.3 V and 5 V systems?
Yes, the device is compatible with both 3.3 V and 5 V systems.
