BTS71202EPGXUMA1 - 2-Ch 2A Smart High-Side Switch | Infineon
MPN： BTS71202EPGXUMA1 ✓ 啟用中BTS71202EPGXUMA1 概覽
A high-side switch is a power-MOSFET driver topology where the load is tied to ground and the switch sits between the positive supply rail and the load. Compared with low-side switches, high-side drivers simplify wiring harnesses, eliminate ground-shift issues, and integrate easily into automotive body-control modules where chassis ground returns are long and noisy. The BTS71202 sits inside the broader PROFET family of protected switches (which are part of Infineon's power-management IC portfolio) and is a member of the 12 V automotive smart-switch category.
Key features of the BTS71202 include 110 mΩ typical on-resistance per channel at room temperature, very low standby current (~0.5 µA typ), integrated clamping for inductive loads, AEC-Q100 qualification, and a SPI-compatible diagnostic feedback path via the IS pin. Its PROFET +12V heritage means the device meets the stringent ISO 7637 transient, jump-start (36 V), and reverse-battery (–16 V) requirements common on vehicle 12 V buses.
Architecturally, each channel stacks an N-channel power MOSFET with a charge pump and gate driver, plus analog current-sense and digital protection logic. The current-sense output delivers a current proportional to the load current, allowing the host MCU to detect open-load, short-to-ground, and over-current conditions without a discrete shunt resistor.
Typical applications include automotive body-control modules, LED driver modules, relay and solenoid replacement, distributed power-distribution nodes, and general-purpose 12 V high-side switching in industrial systems. Compared with electromechanical relays, the BTS71202 offers smaller PCB area, no contact bounce, silent operation, and embedded diagnostics, while maintaining comparable current-handling capability.
When designing with the BTS71202, place the device close to the load connector to minimize inductance in the high-current path, and reserve copper area for thermal dissipation since two channels can deliver a combined 4 A continuous in still air. A 100 nF X7R decoupling capacitor must be placed within a few millimetres of the Vbb pin to handle ISO 7637 transient pulses.
This page combines distributor pricing, validated drop-in alternatives, and practical design considerations that go beyond the manufacturer's datasheet, helping procurement and engineering teams make faster, better-informed sourcing decisions.
直接替換替代品，適用於 BTS71202EPGXUMA1 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： BTS71202EPGXUMA1 （相同外形與佔位） — 差異在於 Number of Channels, Package, Operating Temperature Range, Operating Voltage (Vbb), Product Type.
BTS71202EPPXUMA1
✅ 直接替換📋 參考替代品（不在目錄中）
BTS51202EKAXUMA1
✅ 直接替換聯絡詢價
查看資料表 →BTS710336ESAXUMA1
✅ 直接替換聯絡詢價
查看資料表 →TPS2H000-Q1
✅ 直接替換📋 參考替代品（不在目錄中）
VNQ7040AY
✅ 直接替換📋 參考替代品（不在目錄中）
BTS71202EPGXUMA1 最大額定值與電氣特性
| Product Type | Smart High-Side Power Switch (PROFET +12V) |
| Number of Channels | 2 (independent) |
| 拓撲 | High-side N-channel MOSFET with charge pump |
| Continuous Load Current per Channel | 2 A |
| On-Resistance (Rds(on)) | 110 mΩ typical |
| Operating Voltage (Vbb) | 3.1 V to 28 V |
| Logic Input Voltage (IN) | Active high, CMOS-compatible |
| Current Sense Output (IS) | Analog proportional to load current |
| Over-Temperature Protection | Yes (thermal shutdown with auto-restart) |
| Over-Voltage Protection (Vbb clamp) | Yes (load-dump tolerant) |
| Reverse Battery Protection | Yes (–16 V rated via integrated path) |
| Short-Circuit Protection | Yes (current-limit, latching/off behaviour per mode) |
| Inductive Load Clamping | Yes (built-in active clamp) |
| 工作溫度範圍 | -40 °C to +150 °C junction |
| 封裝 | PG-TSDSO-14 (exposed pad) |
| 安裝類型 | Surface Mount |
| AEC-Q100 Qualification | Yes |
| RoHS Compliance | Compliant (lead-free) |
BTS71202EPGXUMA1 腳位配置
| 腳位 1 | OUT1 — Channel 1 high-side output to load |
| 腳位 2 | IN1 — Channel 1 logic input (active high) |
| 腳位 3 | GND — Ground reference for logic and IS |
| 腳位 4 | IS1 — Channel 1 current-sense output |
| 腳位 5 | IN2 — Channel 2 logic input (active high) |
| 腳位 6 | OUT2 — Channel 2 high-side output to load |
| 腳位 7 | Vbb — Battery supply input (3.1 V–28 V) |
| 腳位 8 | Vbb — Battery supply input (3.1 V–28 V) |
| 腳位 9 | OUT2 — Channel 2 high-side output to load |
| 腳位 10 | NC — Not connected (per datasheet) |
| 腳位 11 | IS2 — Channel 2 current-sense output |
| 腳位 12 | NC — Not connected (per datasheet) |
| 腳位 13 | IN2 — Channel 2 logic input (active high) |
| 腳位 14 | EP — Exposed thermal pad — connect to copper pour |
安全工作區 (per channel, Infineon datasheet)
典型應用
BTS71202EPGXUMA1 適用於 6 應用s: Automotive Body Control Module (BCM), Automotive LED Tail Lamp Driver, Relay & Solenoid Replacement, Industrial 12 V / 24 V Distribution Nodes, Heated Seat Control Module, 12 V Battery Management Disconnect.
Automotive Body Control Module (BCM)
The BTS71202EPGXUMA1 is a natural fit for automotive body-control modules driving exterior lighting, door locks, mirror heaters, and small solenoids. With two independent 2 A channels per IC, one device handles two loads, reducing BOM count and PCB area. The IS-pin current sense lets the BCM distinguish a burned-out bulb from a wiring fault, supporting OBD-II diagnostic requirements. The AEC-Q100 qualification and ISO 7637 transient tolerance meet 12 V vehicle electrical-environment standards without external TVS protection.
推薦
Automotive LED Tail Lamp Driver
Driving LED tail-lamp assemblies requires accurate fault detection and PWM dimming for stop/tail/turn functions. The BTS71202EPGXUMA1's 110 mΩ Rds(on) keeps conduction loss low even at full brake-lamp current, and its analog IS output reports open-load when an LED fails. The active-high CMOS input accepts direct PWM from an MCU at up to 200 Hz with clean edges, avoiding the audible flicker that plagues relay-driven designs. AEC-Q100 + 28 V load-dump survival make it robust against automotive electrical hazards.
推薦
Relay & Solenoid Replacement
Replacing electromechanical relays with the BTS71202EPGXUMA1 yields silent operation, no contact bounce, longer life, and embedded diagnostics. Each channel directly drives solenoid coils and DC motors up to 2 A continuous, with built-in inductive clamping that absorbs the flyback energy when the field collapses — eliminating the need for flyback diodes on the load. The PROFET +12V family also survives reverse-battery polarity, a frequent failure mode when jump-starting vehicles incorrectly.
推薦
Industrial 12 V / 24 V Distribution Nodes
Beyond automotive, the BTS71202EPGXUMA1 serves in industrial 24 V DC distributed systems where each node controls a solenoid valve, indicator, or actuator. The 28 V absolute-max supply comfortably covers 24 V nominal rails with margin for transients, and the dual channels enable two loads per IC — useful in PLCs and remote I/O blocks. Current sense over the IS pin lets a controller identify failing actuators before they cause machine downtime, supporting predictive-maintenance strategies.
推薦
Heated Seat Control Module
Heated-seat modules in vehicles use PWM control of resistive heating elements, with current sensing for fault detection. The BTS71202EPGXUMA1's two channels can drive the seat-cushion and seat-back heaters independently, allowing zone-by-zone temperature control. The IS-pin output enables detection of heater-element failures (open-circuit) and over-current conditions (shorted element) without a dedicated shunt resistor. AEC-Q100 qualification and –40 °C to +150 °C thermal range suit under-seat environments.
推薦
12 V Battery Management Disconnect
The BTS71202EPGXUMA1 can serve as a low-current disconnect switch in auxiliary battery management, where its reverse-battery protection and active clamping protect downstream electronics from harsh fault events. Two channels allow separate control of load and charger paths. The current-sense output gives the BMS a continuous reading of parasitic draw, supporting sleep-mode current budget verification — a common engineering challenge in always-connected vehicles.
推薦
推薦產品摘要
工程參考資料，適用於 BTS71202EPGXUMA1 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | BTS71202EPPXUMA1 | BTS51202EKAXUMA1 | BTS710336ESAXUMA1 | TPS2H000-Q1 | VNQ7040AY |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Texas Instruments | STMicroelectronics |
| Package | PG-TSDSO-14 | PG-TSDSO-14 - same | PG-DSO-14 - same family | PG-TSDSO-14 - same | HTSSOP-14 PowerPAD | PowerSSO-24 |
| Channels | 2 | 2 | 1 | 3 | 2 | 4 |
| Continuous Current / Channel | 2 A | 2 A | 5.5 A (single ch) | 1.5 A | 1.5 A | 5 A |
| Rds(on) typ | 110 mΩ | 110 mΩ | 32 mΩ | 170 mΩ | 160 mΩ | 40 mΩ |
| Operating Voltage | 3.1 V – 28 V | 3.1 V – 28 V | 4.5 V – 28 V | 3.1 V – 28 V | 4 V – 28 V | 4 V – 28 V |
| AEC-Q100 | Yes | Yes | Yes | Yes | Yes | Yes |
| Current Sense Output | Yes (IS pin) | Yes (IS pin) | Yes (IS pin) | Yes (IS pin) | Yes (FLT pin) | Yes (IS pin) |
主要差異化特點
- Dual 2 A channels in PG-TSDSO-14 with PROFET +12V protection (對比VNQ7040AY)
- AEC-Q100 qualified with ISO 7637 transient survival (對比TPS2H000-Q1)
- Integrated IS-pin analog current sense eliminates shunt resistor (對比Discrete N-channel MOSFET + shunt resistor)
設計說明
At 2 A continuous per channel with 110 mΩ Rds(on), each channel dissipates roughly 0.44 W, giving 0.88 W combined at full dual-channel load. The PG-TSDSO-14 exposed pad must be soldered to a copper pour of at least 200 mm² to keep the junction below 150 °C in still air. In hot underhood or industrial cabinets, derate to 1.3 A per channel or add forced airflow. Estimated: RθJA ≈ 35 °C/W on a 4-layer 2 oz JEDEC test board; verify against the Infineon datasheet curve for your actual PCB.
Place a 100 nF X7R ceramic decoupling capacitor within 5 mm of the Vbb pins and a low-ESR bulk capacitor (≥10 µF) at the supply input to absorb ISO 7637-2 transient pulses. Use wide copper pours (≥2 mm) on the OUT pins, and split logic ground from power ground only if the load current path is independent — for two-channel loads, a single ground pour is fine. The exposed pad must be a continuous copper area without thermal relief cutouts for best thermal performance.
Do not leave IN pins floating — tie them either high or low through a defined resistor (10 kΩ typical) so the channel state is deterministic during MCU startup or reset. The IS pin must be terminated to GND through a sense resistor; an open IS pin is a fault condition and may trigger the device's diagnostic state. Reverse battery (–16 V) survival is rated only when the IC is properly soldered with the exposed pad grounded to the same chassis potential; floating the pad will compromise reverse-battery robustness.
The IS pin output is a current source whose bandwidth extends into the audio range; add a small RC filter (1 kΩ + 100 nF) to filter PWM noise from the ADC sampling. PWM dimming of LED loads should use frequencies above 200 Hz to avoid perceptible flicker and below 2 kHz to stay within the device's switching slew rate. Verify in your specific design because thermal limits depend on PCB copper area.
合規資訊
AEC-Q100 qualified per Infineon datasheet. RoHS and lead-free confirmed by distributor listings (DigiKey, Mouser). PROFET family supports ISO 7637-2 transient survival and reverse-battery to –16 V.