MC33486ADHR2 - Dual 15mOhm High-Side Switch H-Bridge Driver | NXP
料号： MC33486ADHR2 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.47 | $34.70 |
| 100 | $3.05 | $305.00 |
| 500 | $2.68 | $1,340.00 |
| 1,000 | $2.35 | $2,350.00 |
| 2,500 | $2.05 | $5,125.00 |
MC33486ADHR2 概述
A high-side switch is a power-distribution semiconductor that connects a load to the positive supply rail when activated. The MC33486ADHR2 belongs to the high-side switch family within the broader power MOSFET driver hierarchy (power switch IC -> motor driver -> power management IC). Two channels combined with low-side control logic enable a full H-bridge topology for bidirectional DC motor control, replacing discrete MOSFETs plus driver ICs with a single integrated solution. This integration shrinks PCB area, reduces BOM count, and improves reliability by co-locating the protection circuitry with the switching elements.
Key features include very low 15 mOhm typical on-resistance per channel minimizing conduction losses, integrated charge pump for full enhancement of the high-side N-channel MOSFETs at low supply voltages, PWM capability up to 1 kHz for variable motor speed, diagnostic output flag, and AEC-Q100 automotive qualification supporting automotive temperature grade -40C to +125C. The 20-pin HSOP package exposes the die pad for direct thermal conduction to the PCB copper, enabling sustained 10 A operation with proper board layout.
The architecture combines two charge-pump-driven high-side MOSFETs with control logic, current sensing, and fault management. Internal charge pumps maintain VGS enhancement across the full supply range, ensuring low RDS(on) even at 8 V input. Cycle-by-cycle current limiting and thermal shutdown protect against short circuits and overload conditions, while an open-drain status flag reports fault conditions to the host microcontroller.
Typical applications include automotive DC motor control (window lift, sunroof, seat adjustment, door lock, wiper), industrial brush DC motor drivers, solenoid drivers, and bidirectional DC load switching. The dual high-side topology is particularly suited to H-bridge configurations when paired with an N-channel low-side driver.
When designing with this part, ensure the PCB copper area under the exposed pad is sufficient to dissipate the I^2R losses at 10 A continuous (approximately 1.5 W per channel at full load). Use wide copper pours and thermal vias to the inner power plane. Place the bootstrap/charge-pump capacitors as close as possible to the CP and VCC pins to minimize switching transients.
This page synthesizes NXP datasheet specifications, parametric comparison against same-family NXP high-side switches, and practical PCB thermal design guidance not consolidated in the manufacturer PDF.
直接替换替代料： MC33486ADHR2 ——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：
MC33486ADHR2G
✅ 直接替换📋 参考替代料（不在目录中）
MC33486ADH
✅ 直接替换📋 参考替代料（不在目录中）
MC33887HEFR2
✅ 直接替换📋 参考替代料（不在目录中）
VNH5019ATR-E
✅ 直接替换📋 参考替代料（不在目录中）
BTS7960B
✅ 直接替换📋 参考替代料（不在目录中）
MC33486ADHR2 最大额定值与电气特性
| Product Type | Dual High-Side Switch (H-Bridge Driver) |
| 拓扑 | Dual high-side with low-side gate control |
| 输出数量 | 2 (dual high-side) |
| On-State Resistance (RDS(on)) | 15 mOhm typical per channel |
| Supply Voltage Range | 8 V to 28 V |
| Continuous Output Current | 10 A per channel |
| 工作温度范围 | -40 C to +125 C (Automotive grade) |
| PWM Frequency | Up to 1 kHz |
| 封装 | 20-pin HSOP (HSSOP) with exposed thermal pad |
| 安装类型 | Surface Mount |
| Protection Features | Over-current, over-voltage, thermal shutdown, reverse battery |
| Diagnostic Output | Open-drain status flag |
| Charge Pump | Integrated, for N-channel high-side drive |
| Automotive Qualification | AEC-Q100 qualified |
| RoHS 状态 | Compliant |
| Temperature Grade | Automotive |
| Lead-Free | Yes |
MC33486ADHR2 引脚配置
| 引脚 1 | OUT1 — High-side output 1 (drain of high-side MOSFET 1) |
| 引脚 2 | OUT1 — High-side output 1 (drain of high-side MOSFET 1) |
| 引脚 3 | GND — Ground |
| 引脚 4 | IN1 — Logic input for channel 1 (active-high) |
| 引脚 5 | ST1 — Status flag for channel 1 (open drain) |
| 引脚 6 | VCC — Logic supply voltage |
| 引脚 7 | GNDLS — Low-side gate return / ground |
| 引脚 8 | GLS — Low-side gate drive output |
| 引脚 9 | CP — Charge pump capacitor terminal |
| 引脚 10 | VCP — Charge pump reservoir capacitor |
| 引脚 11 | VBAT — Battery supply (8 V to 28 V) |
| 引脚 12 | VBAT — Battery supply (8 V to 28 V) |
| 引脚 13 | VBAT — Battery supply (8 V to 28 V) |
| 引脚 14 | VBAT — Battery supply (8 V to 28 V) |
| 引脚 15 | VBAT — Battery supply (8 V to 28 V) |
| 引脚 16 | VBAT — Battery supply (8 V to 28 V) |
| 引脚 17 | OUT2 — High-side output 2 (drain of high-side MOSFET 2) |
| 引脚 18 | OUT2 — High-side output 2 (drain of high-side MOSFET 2) |
| 引脚 19 | ST2 — Status flag for channel 2 (open drain) |
| 引脚 20 | IN2 — Logic input for channel 2 (active-high) |
典型应用
MC33486ADHR2 适用于 6 应用s: Automotive Window Lift Drive, Power Seat Adjustment Motor Control, Sunroof and Sliding Door Motors, Industrial Brush DC Motor Driver, Solenoid and Valve Drivers, Bidirectional DC Load Switching.
Automotive Window Lift Drive
The MC33486ADHR2 fits automotive window-lift motor control with its 10 A continuous per-channel rating, 8 V to 28 V automotive supply coverage, and AEC-Q100 qualification. The dual high-side topology pairs with an external low-side driver to form a complete H-bridge for bidirectional motor reversal, while the integrated 15 mOhm RDS(on) keeps conduction loss to 1.5 W per channel at 10 A. Built-in over-current, over-voltage, and reverse-battery protection satisfy the harsh transients of an automotive 12 V bus, and the open-drain status flag reports stall or short-circuit events to the body control module. Per the NXP datasheet, the device directly replaces discrete MOSFET-plus-driver solutions in door modules, cutting PCB area by roughly 60 percent.
推荐
Power Seat Adjustment Motor Control
The MC33486ADHR2 is well suited to automotive power-seat motor drivers requiring bidirectional brushed DC control at moderate current. Each channel carries up to 10 A continuous, comfortably handling seat-adjustment loads that typically peak at 6 to 8 A during motor stall. AEC-Q100 qualification and the -40 C to +125 C operating range cover cabin temperature extremes, while the integrated charge pump eliminates the need for external bootstrap components, simplifying the seat controller PCB. Per the NXP datasheet, the dual high-side outputs combined with an N-channel low-side pair form a complete H-bridge for forward and reverse seat motion, plus PWM speed control.
推荐
Sunroof and Sliding Door Motors
The MC33486ADHR2 supports sunroof and sliding-door brushed DC motors that draw 5 to 10 A under normal operation and higher transients during mechanical stall. Its 15 mOhm RDS(on) limits I^2R losses to about 1.5 W per channel at 10 A, which the 20-pin HSOP exposed pad dissipates effectively into PCB copper. The integrated thermal shutdown and cycle-by-cycle current limit protect against stalled-motor conditions common in sunroof mechanisms. Per the manufacturer datasheet, the 8 V to 28 V supply range covers cranking transients on a 12 V automotive bus without supply rail collapse.
推荐
Industrial Brush DC Motor Driver
Industrial 24 V brushed DC motors benefit from the MC33486ADHR2's 28 V upper supply limit, 10 A continuous rating, and integrated protection features. The dual high-side outputs form an H-bridge with external low-side switches for conveyor, valve actuator, or pump motor control. The exposed-pad HSOP package dissipates full-load losses into a chassis-mount heatsink or large PCB copper pour. Per the NXP datasheet, the device's PWM capability up to 1 kHz enables variable-speed motor control without external gate-driver circuitry.
推荐
Solenoid and Valve Drivers
The MC33486ADHR2 drives inductive solenoid loads including hydraulic valves, pneumatic actuators, and latching relays that demand high peak inrush current followed by lower hold current. The 10 A continuous channel rating absorbs the inrush, and integrated flyback protection absorbs inductive kickback when the solenoid de-energizes. Per the NXP datasheet, the open-drain status flag indicates when current limiting has engaged so the host controller can pulse-width-modulate the channel to reduce hold current and minimize thermal dissipation.
推荐
Bidirectional DC Load Switching
The MC33486ADHR2 implements bidirectional DC load switching when configured with an N-channel MOSFET on the low side. Applications include bi-directional battery isolation, dual-battery management, and reversible motor contactor replacement. The 8 V to 28 V operating window accommodates 12 V and 24 V battery systems, and the AEC-Q100 grade ensures reliability in automotive and heavy-equipment environments per the manufacturer datasheet.
推荐
推荐产品汇总
工程参考数据： MC33486ADHR2 ——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 | MC33486ADHR2G | MC33486ADH | MC33887HEFR2 | VNH5019ATR-E | BTS7960B |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | STMicroelectronics | Infineon |
| Package | 20-pin HSOP | 20-pin HSOP - same | 20-pin HSOP - same | 20-pin HSOP - same | 20-pin PowerSSO - same land area | 20-pin Multiwatt-equivalent - similar |
| Topology | Dual high-side switch | Dual high-side switch | Dual high-side switch | Integrated H-bridge | Integrated H-bridge | Half-bridge (one IC per switch) |
| Continuous Output Current | 10 A per channel | 10 A per channel | 10 A per channel | 5 A | 30 A peak | 25 A continuous |
| Supply Voltage Range | 8 V to 28 V | 8 V to 28 V | 8 V to 28 V | 5.5 V to 28 V | 5.5 V to 24 V | 4.5 V to 27.5 V |
| Automotive Qualification | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 |
| Operating Temperature Range | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +150 C | -40 C to +150 C |
关键差异点
- Integrated dual high-side switch in single 20-pin HSOP （对比 Discrete N-channel MOSFETs + gate driver)
- Very low 15 mOhm RDS(on) per channel （对比 MC33887HEFR2 (integrated H-bridge, higher RDS(on)))
- Integrated charge pump for high-side N-channel drive （对比 P-channel high-side switches)
设计说明
At 10 A continuous load per channel the MC33486ADHR2 dissipates approximately I^2R = 100 x 0.015 = 1.5 W per channel. Estimated junction-to-ambient thermal resistance for the 20-pin HSOP package is around 35 C/W on a JEDEC 4-layer test board with 1 square inch of copper under the exposed pad. This yields about 52 C temperature rise at full 10 A load, requiring the PCB to spread heat into a larger copper pour or attach the package to a chassis heatsink for sustained full-current operation. Keep the exposed pad soldered to a contiguous copper island at least 1 square inch per channel for thermal relief.
Place the charge-pump capacitor (CP to VCP) as close as possible to pins 9 and 10 with short, wide traces to maximize switching performance. Use a low-ESR ceramic capacitor of 100 nF minimum per the manufacturer datasheet. Route VBAT (pins 11 to 15) with wide copper pours to minimize voltage drop and provide thermal spreading. Place bypass capacitance on VCC (pin 100) within 5 mm of the pin to suppress logic supply transients.
Do not exceed the 28 V absolute maximum supply rating - load-dump transients on a 12 V automotive bus can reach 35 V, so add an external TVS clamp or zener on VBAT if the design is exposed to unclamped load-dump events. Do not float the logic IN1 / IN2 inputs - tie them to GND through 100 kOhm pull-downs when unused to prevent false turn-on. The status flag ST1 / ST2 are open-drain and require external pull-up resistors to VCC. Avoid paralleling both channels for higher current unless carefully matched, since the device is not specified for parallel operation.
合规信息
AEC-Q100 qualified per NXP product page. RoHS and lead-free per manufacturer datasheet. Halogen-free status not specified in available data.
