VND5050K-E - 41A High-Side Driver, 36V | STMicroelectronics
料号： VND5050K-E ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.28 | $228.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.82 | $1,820.00 |
VND5050K-E 概述
A high-side driver is a power management IC that connects a load to the positive supply rail, providing switching and protection functions. It integrates a power MOSFET, control logic, and diagnostic circuitry in a single package, simplifying system design and enhancing reliability. In the hierarchy of power management, a high-side driver falls under power switches, which are part of discrete power semiconductors and power management ICs.
Key features of the VND5050K-E include a very low ON-state resistance of 50 mOhm, a wide operating voltage range from 4.5V to 36V, and a standby current of only 0.5 uA. It provides analog current sense output for load diagnostics and has a dedicated status pin for fault reporting. The device is AEC-Q100 qualified, making it suitable for automotive environments.
The VND5050K-E uses STMicroelectronics' VIPower M0-5 technology, which integrates a vertical P-channel MOSFET with CMOS control logic. This architecture enables high current handling with low power dissipation and fast switching. The PowerSSO-12 package offers excellent thermal performance with a thermal resistance of 40 C/W, allowing operation at high ambient temperatures without external heatsinking in many applications.
Typical applications include automotive lighting control, DC motor driving, solenoid actuation, and general-purpose load switching in industrial control systems. The device's robust protection features make it ideal for harsh environments where load faults are common.
When designing with the VND5050K-E, ensure adequate PCB copper area for heat dissipation and place the sense resistor close to the device for accurate current sensing. The input pin is compatible with both 3.3V and 5V logic levels, simplifying microcontroller interfacing.
直接替换替代料： VND5050K-E ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
VND5050K-1A-E
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
VND5050KTR-E
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
VND5050K-E
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.82 / 个
查看数据手册 →VND5050K-E 最大额定值与电气特性
| 输出类型 | High-Side |
| Operating Voltage Range | 4.5 V to 36 V |
| 最大输出电流 | 41 A (current limit) |
| ON-State Resistance | 50 mOhm |
| Standby Current | 0.5 uA |
| Current Sense Ratio | 5000:1 |
| Input Logic Level | 3.3V/5V compatible |
| Protection Features | Overcurrent, Overtemperature, Short-circuit, Load dump |
| Diagnostic Output | Analog current sense + status pin |
| 封装 | PowerSSO-12 |
| 安装类型 | Surface Mount |
| 工作温度 | -40C to +150C |
| 热阻 | 40 C/W |
| AEC-Q100 | Qualified |
| RoHS 状态 | Compliant |
VND5050K-E 引脚配置
| 引脚 1 | IN — Input control (logic level) |
| 引脚 2 | GND — Ground |
| 引脚 3 | OUT — High-side output to load |
| 引脚 4 | OUT — High-side output to load |
| 引脚 5 | OUT — High-side output to load |
| 引脚 6 | OUT — High-side output to load |
| 引脚 7 | OUT — High-side output to load |
| 引脚 8 | OUT — High-side output to load |
| 引脚 9 | OUT — High-side output to load |
| 引脚 10 | OUT — High-side output to load |
| 引脚 11 | CS — Current sense output |
| 引脚 12 | STATUS — Status output (fault indication) |
典型应用
VND5050K-E 适用于 6 应用s: Automotive Lighting Control, DC Motor Driving, Solenoid Actuation, Industrial Load Switching, Automotive Body Control Module, LED Lighting Systems.
Automotive Lighting Control
The VND5050K-E is ideal for automotive lighting control, including headlamps, tail lamps, and interior lighting. Its 50 mOhm ON-state resistance minimizes voltage drop, ensuring full brightness. The device's AEC-Q100 qualification and load dump protection make it robust for automotive electrical environments. In a typical application, the high-side driver is placed between the battery rail and the lamp, with the input connected to a microcontroller GPIO. The current sense output allows the ECU to monitor lamp health and detect open or short circuits. The low standby current of 0.5 uA is crucial for reducing battery drain when the vehicle is off. Thermal management is critical: at 20A load, power dissipation is 20W, requiring adequate PCB copper area or a heatsink to keep junction temperature below 150C.
推荐
DC Motor Driving
The VND5050K-E can drive DC motors up to 20A continuous, making it suitable for automotive fans, pumps, and window lifts. Its built-in overcurrent and overtemperature protection safeguard the motor and driver during stall conditions. In a typical application, the high-side driver switches the motor's positive supply, while a low-side MOSFET or H-bridge handles direction control. The current sense output provides real-time motor current for speed control and fault detection. The low ON-state resistance reduces power loss, improving efficiency. For inductive loads, a freewheeling diode is recommended across the motor to clamp voltage spikes. The device's fast switching capability (rise/fall time of 10 us) supports PWM control up to 20 kHz for speed regulation.
推荐
Solenoid Actuation
The VND5050K-E is well-suited for driving solenoids in automotive transmission, locking systems, and industrial valves. Solenoids require high inrush current and have inductive characteristics, which the device handles with its 41A current limit and built-in inductive load clamping. In a typical application, the high-side driver energizes the solenoid coil, with a freewheeling diode or the device's internal clamp absorbing the inductive kickback. The current sense output allows precise control of the hold current, reducing power consumption. The device's wide operating voltage range (4.5V to 36V) accommodates both 12V and 24V systems. Thermal considerations are important during continuous operation; the device's thermal shutdown protects against overtemperature, but proper PCB design is essential for reliable long-term operation.
推荐
Industrial Load Switching
In industrial control systems, the VND5050K-E provides reliable switching of resistive loads such as heaters, lamps, and relays. Its robust protection features (overcurrent, overtemperature, short-circuit) ensure safe operation in harsh environments. The device's analog current sense output enables remote monitoring of load current, facilitating predictive maintenance. In a typical application, the high-side driver is controlled by a PLC or industrial microcontroller, with the input isolated via optocouplers if necessary. The wide operating voltage range supports 24V industrial buses. The low standby current is beneficial for systems that remain powered but idle. The PowerSSO-12 package's exposed pad allows efficient heat transfer to the PCB, enabling operation at high ambient temperatures up to 150C.
推荐
Automotive Body Control Module
The VND5050K-E is a key component in automotive body control modules (BCMs), which manage lighting, wipers, and other body functions. Its high current capability and diagnostic features allow the BCM to detect and report faults to the vehicle's ECU. In a typical BCM, multiple high-side drivers are used to switch various loads, with the VND5050K-E handling higher-current loads like headlamps. The device's AEC-Q100 qualification ensures reliability over the vehicle's lifetime. The current sense output enables load monitoring for bulb-out detection. The device's low standby current is critical for reducing parasitic drain when the vehicle is off. The PowerSSO-12 package's small footprint saves PCB space, allowing compact BCM designs.
推荐
LED Lighting Systems
The VND5050K-E can drive high-power LED lighting systems, such as automotive headlamps and industrial floodlights. Its low ON-state resistance minimizes power loss, and its current sense output enables constant-current control when combined with a PWM controller. In a typical application, the high-side driver switches the LED string, with a current-sense resistor and feedback loop regulating LED current. The device's fast switching supports high-frequency PWM dimming without flicker. The wide operating voltage range accommodates various supply voltages. Thermal management is crucial for LED applications; the device's thermal shutdown protects against overtemperature, but proper heatsinking is required for high-power LEDs. The device's AEC-Q100 qualification makes it suitable for automotive LED lighting.
推荐
推荐产品汇总
工程参考数据： VND5050K-E ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | VND5050K-1A-E | VND5050KTR-E | VND5050J-E | VNQ5050K-E | BTS50055-1TMA |
|---|---|---|---|---|---|---|
| Package | PowerSSO-12 | PowerSSO-12 (same) | PowerSSO-12 (same) | PowerSSO-16 (different) | PowerSSO-36 (different) | TO-263 (different) |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Infineon |
| Operating Voltage Range | 4.5V to 36V | 4.5V to 36V | 4.5V to 36V | 4.5V to 36V | 4.5V to 36V | 4.5V to 40V |
| Maximum Output Current | 41A (limit) | 41A (limit) | 41A (limit) | 41A (limit) | 41A per channel | 55A (limit) |
| ON-State Resistance | 50 mOhm | 50 mOhm | 50 mOhm | 50 mOhm | 50 mOhm per channel | 55 mOhm |
| Standby Current | 0.5 uA | 0.5 uA | 0.5 uA | 0.5 uA | 2 uA | 1 uA |
| AEC-Q100 | Qualified | Qualified | Qualified | Qualified | Qualified | Qualified |
| Number of Channels | 1 | 1 | 1 | 1 | 4 | 1 |
关键差异点
- Lowest ON-state resistance in its class （对比 BTS50055-1TMA)
- Ultra-low standby current （对比 VNQ5050K-E)
- Single-channel simplicity （对比 VNQ5050K-E)
设计说明
At 20A load, power dissipation is I^2*R = 20^2 * 0.05 = 20W. The PowerSSO-12 package has a thermal resistance of 40 C/W (theta_JA), resulting in a temperature rise of 800C without proper cooling. A heatsink or large copper area (at least 2 square inches) is required for continuous operation above 5A. Use thermal vias to transfer heat to the PCB ground plane.
Place the input and output capacitors close to the device pins. Use a 100nF ceramic capacitor on the input and a 10uF electrolytic capacitor on the output for stability. The current sense pin (CS) requires a sense resistor (typically 1kOhm) to ground; place it close to the device to minimize noise. The status pin (STATUS) should have a pull-up resistor to the logic supply.
Do not exceed the absolute maximum voltage of 36V on the input. Ensure the load is connected to the output pin; a short to ground will trigger overcurrent protection. The input pin is not 5V tolerant if the supply is above 5V; use a level shifter if necessary. The current sense output is only valid when the device is ON; it is high-impedance when OFF.
合规信息
RoHS compliant per STMicroelectronics product page. AEC-Q100 qualified for automotive applications.
