TLE7244SLXUMA2 - 8-Ch Low-Side SPI Relay Driver | Infineon
Артикул: TLE7244SLXUMA2 ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $3.95 | $3,95 |
| 10 | $3.55 | $35,50 |
| 100 | $3.05 | $305,00 |
| 500 | $2.65 | $1.325,00 |
| 1.000 | $2.3 | $2.300,00 |
TLE7244SLXUMA2 Обзор
What is a low-side SPI relay driver? A low-side power switch is a type of power distribution IC that sits between the load (typically a relay coil, solenoid, or lamp) and ground, sinking current to switch the load on or off. When controlled by an SPI (Serial Peripheral Interface) link, a single microcontroller can manage many outputs with latched commands, while the driver handles the heavy current and protective functions locally. Low-side drivers belong to the broader category of power management ICs and, more specifically, intelligent load drivers / smart power switches used in automotive electronic control units.
Key features of the TLE7244SLXUMA2 include eight open-drain N-channel outputs rated at 290 mA continuous, integrated protection with current limiting and thermal shutdown per channel, an SPI interface for diagnostics and configuration, four dedicated input pins for direct control or PWM generation, a limp-home function to maintain operation under microcontroller fault, and very low quiescent current in standby. The PG-SSOP-24-7 exposed-pad package provides excellent thermal dissipation and is qualified to Infineon's automotive reliability standards.
Architecturally, the device pairs eight N-channel DMOS output stages with a digital control core that decodes SPI frames, drives fault flags, and arbitrates between direct-input and SPI commands. The embedded protective functions - over-current, open-load, over-temperature, and reverse battery - are designed to satisfy OEM body-controller module requirements, while the diagnostic word returned over SPI supports ISO 26262 functional-safety development at the system level.
Typical applications include automotive body control modules driving relays and solenoids, junction box power distribution, lighting drivers (especially where PWM dimming is required), HVAC flap motors, and other inductive loads where protective switching and diagnostics are essential. The four input pins make it equally suitable as a stand-alone relay driver without MCU intervention during limp-home.
When designing with this part, keep output flyback diodes or use relays with built-in freewheeling diodes because the low-side switch cannot clamp inductive kickback on its own. The exposed thermal pad must be soldered to a sufficient copper area on the PCB to keep junction temperature within ratings when driving multiple inductive loads simultaneously. Source: Infineon TLE7244SL product page and distributor datasheets, accessed 2026-09-14.
This page combines verified distributor pricing, drop-in alternative analysis, and practical design notes that go beyond what the manufacturer datasheet alone offers, helping engineers select, source, and qualify the TLE7244SLXUMA2 more efficiently.
Аналоги без доработки для TLE7244SLXUMA2 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
TLE7240SL
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
TLE7239SLXUMA1
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
TLE7244SLXUMA2 Максимальные параметры и электрические характеристики
| Product Type | Low-side power switch / SPI relay driver |
| Number of Channels | 8 |
| Выходная конфигурация | Low-side, N-channel open drain |
| Continuous Output Current per Channel | 290 mA |
| Supply Voltage Range (VS) | 5 V to 28 V |
| Logic Supply Voltage (VDD) | 3 V to 5.5 V |
| Control Interface | SPI (Serial Peripheral Interface) plus 4 direct input pins |
| PWM Capability | Yes, via direct input pins or SPI |
| Protection Features | Over-current, over-temperature, short to GND, short to VBAT, open-load detection |
| Limp-home Function | Yes (fail-safe input control) |
| Diagnostic Output | SPI status word / interrupt flag |
| Корпус | PG-SSOP-24-7 (exposed pad) |
| Тип монтажа | Surface Mount |
| Operating Temperature (junction) | -40C to +150C |
| Automotive Qualification | AEC-Q100 qualified |
| Статус RoHS | Compliant |
Конфигурация выводов TLE7244SLXUMA2
| Контакт 1 | OUT1 — Low-side output channel 1, open drain |
| Контакт 2 | OUT2 — Low-side output channel 2, open drain |
| Контакт 3 | OUT3 — Low-side output channel 3, open drain |
| Контакт 4 | OUT4 — Low-side output channel 4, open drain |
| Контакт 5 | GND — Power ground return for outputs |
| Контакт 6 | VS — Main supply voltage, 5 V to 28 V |
| Контакт 7 | IN1 — Direct input 1, controls OUT1 |
| Контакт 8 | IN2 — Direct input 2, controls OUT2 |
| Контакт 9 | IN3 — Direct input 3, controls OUT3 |
| Контакт 10 | IN4 — Direct input 4, controls OUT4 |
| Контакт 11 | VDD — Logic supply, 3 V to 5.5 V |
| Контакт 12 | CSN — SPI chip select, active low |
| Контакт 13 | SCLK — SPI serial clock |
| Контакт 14 | SI — SPI serial data input |
| Контакт 15 | SO — SPI serial data output (diagnostic) |
| Контакт 16 | INT — Interrupt / fault flag, active low |
| Контакт 17 | OUT5 — Low-side output channel 5, open drain |
| Контакт 18 | OUT6 — Low-side output channel 6, open drain |
| Контакт 19 | OUT7 — Low-side output channel 7, open drain |
| Контакт 20 | OUT8 — Low-side output channel 8, open drain |
| Контакт 21 | NC — Not connected (per datasheet) |
| Контакт 22 | NC — Not connected (per datasheet) |
| Контакт 23 | NC — Not connected (per datasheet) |
| Контакт 24 | NC — Not connected (per datasheet) |
Типичное применение
TLE7244SLXUMA2 подходит для 6 применениеs: Automotive Body Control Module, Relay and Solenoid Driver Array, Automotive Lighting Driver (PWM Dimming), HVAC Flap Motor and Blower Control, Industrial Multi-Channel Load Switching, Power Distribution Junction Box.
Automotive Body Control Module
The TLE7244SLXUMA2 fits body control modules (BCMs) that manage relays and solenoids for door locks, mirrors, wipers, and turn signals. Its 8-channel 290 mA capability allows one IC to replace multiple discrete low-side MOSFETs, while SPI diagnostics report open-load and short-circuit faults back to the BCM microcontroller over the same bus. The 5 V to 28 V supply range covers both 12 V passenger-car and 24 V truck electrical systems, and AEC-Q100 qualification satisfies OEM PPAP requirements. Compared with discrete designs, the integrated protection and diagnostic word reduce firmware complexity and shrink PCB area in space-constrained BCM housings.
Рекомендуется
Relay and Solenoid Driver Array
Each of the eight outputs of the TLE7244SLXUMA2 sinks up to 290 mA to ground, making it ideal for direct relay coil or solenoid control. The on-chip flyback handling is designed for inductive loads, though engineers should still verify relay clamp diode requirements. The four direct input pins allow relays to be toggled even when the SPI host is faulted, supporting limp-home operation. In typical junction-box designs, two TLE7244SLXUMA2 devices on the same SPI bus provide 16 protected outputs, sufficient for a mid-range body controller without expanding the MCU pin count.
Рекомендуется
Automotive Lighting Driver (PWM Dimming)
The TLE7244SLXUMA2's PWM capability, accessed through the four direct input pins or via SPI frequency/duty registers, makes it suitable for interior and exterior lighting dimming. Each channel can drive LED strings, incandescent lamps, or PWM-controlled courtesy lights at duty cycles from 0 to 100 percent. Open-load detection identifies burned-out lamps for bulb-out warning, a feature mandated in many automotive lighting subsystems. The exposed-pad PG-SSOP-24-7 package keeps junction temperature within ratings even when all eight channels switch at high PWM frequency simultaneously.
Рекомендуется
HVAC Flap Motor and Blower Control
Climate-control modules use low-side switches to drive HVAC mode-door actuators and small DC blower motors. The TLE7244SLXUMA2's eight channels can run four H-bridge halves (two channels per motor) to provide direction and speed control for up to four flap motors from a single IC. PWM via the input pins produces smooth proportional positioning without burdening the SPI bus. AEC-Q100 qualification and -40C to +150C junction temperature range cover the under-dash thermal environment of HVAC modules.
Рекомендуется
Industrial Multi-Channel Load Switching
Outside automotive, the TLE7244SLXUMA2 can switch relays, solenoids, and small actuators in industrial control systems where 24 V supply rails are common. Its 5 V to 28 V supply tolerance handles both 12 V and 24 V industrial buses, and SPI control simplifies integration with industrial MCUs. Designers should verify that AEC-Q100 reliability is acceptable (usually a bonus) and that the exposed-pad PCB layout meets the application's vibration profile. Compared with industrial-grade relay modules, this single-IC solution reduces wiring and improves diagnostic visibility at the controller level.
Рекомендуется
Power Distribution Junction Box
Centralized junction boxes that distribute power to vehicle subsystems benefit from the TLE7244SLXUMA2's combination of eight protected outputs, SPI diagnostics, and compact PG-SSOP-24-7 footprint. Each channel can be commanded, monitored, and fault-isolated without adding fuses or external sense resistors for every load. The device's reverse-battery protection and 40 V transient tolerance simplify upstream TVS selection in the junction-box design. For higher current outputs (over 5 A), designers pair the TLE7244SLXUMA2 with high-side PROFET switches such as the BTS7008 series to mix low- and high-side distribution.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для TLE7244SLXUMA2 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | TLE7240SL | TLE7239SLXUMA1 | BTS5210GXUMA1 | BTT62001ENAXUMA1 |
|---|---|---|---|---|---|
| Package | PG-SSOP-24-7 | PG-SSOP-24 | PG-SSOP-24 | PG-DSO-20 | PG-DSO-8 |
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Number of Channels | 8 | 4 | Different configuration | 2 | 1 |
| Control Interface | SPI + 4 direct inputs | SPI + direct inputs | SPI | SPI | SPI |
| Output Polarity | Low-side | Low-side | Low-side | High-side | High-side |
| Automotive Qualification (AEC-Q100) | Yes | Yes | Yes | Yes | Yes |
Ключевые отличия
- Highest channel count in the SPIDER family (против TLE7240SL)
- Integrated SPI plus 4 direct inputs enable limp-home (против TLE7239SLXUMA1)
- Low-side switch topology for inductive loads (против BTS5210GXUMA1 (high-side PROFET))
Заметки по проектированию
The PG-SSOP-24-7 package uses an exposed thermal pad that must be soldered to a PCB copper pour of at least 1 square inch to keep junction temperature within the 150 C rating. With all 8 channels at 290 mA simultaneously, total internal dissipation can reach several hundred milliwatts; at high ambient (under-dash, 85 C) the exposed pad is the primary heat path. Estimated: assuming 0.5 W total dissipation and 35 C/W theta_JA on a properly designed 1 sq inch copper pour, junction rise is roughly 17.5 C above ambient. Designers should always validate with a thermal camera in worst-case load conditions.
The TLE7244SLXUMA2 is a LOW-side switch, meaning each output sinks current to ground. Engineers accustomed to high-side PROFET drivers must not tie the load to VS and the output pin directly, since that would create a permanent-on condition. Always wire the load between VS and the OUTx pin, with the OUTx pin switching to GND. External flyback diodes or relays with built-in clamp diodes are recommended for inductive loads.
Place the VDD decoupling capacitor (100 nF ceramic) and VS bulk capacitor (10 uF minimum) within 5 mm of their respective pins. The exposed thermal pad must have a continuous top-layer copper pour with multiple thermal vias to an internal ground plane. Keep SPI traces short and route them away from switching output nodes to avoid coupling diagnostic noise into the SPI bus. Source: Infineon TLE7244SL datasheet layout recommendations.
Информация о соответствии
AEC-Q100 qualified per Infineon product page. RoHS compliant. Lead-free PG-SSOP-24-7 package. Halogen-free per automotive industry standards.
