TLE7244SLXUMA2 - 8-Ch Low-Side SPI Relay Driver | Infineon
MPN: TLE7244SLXUMA2 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 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 |
Drop-in alternatives for TLE7244SLXUMA2 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TLE7240SL
β Drop-Inπ Reference alternative (not in catalog)
TLE7239SLXUMA1
β Drop-Inπ Reference alternative (not in catalog)
TLE7244SLXUMA2 Maximum Ratings & Electrical Characteristics
| Product Type | Low-side power switch / SPI relay driver |
| Number of Channels | 8 |
| Output Configuration | 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 |
| Package | PG-SSOP-24-7 (exposed pad) |
| Mounting Type | Surface Mount |
| Operating Temperature (junction) | -40C to +150C |
| Automotive Qualification | AEC-Q100 qualified |
| RoHS Status | Compliant |
TLE7244SLXUMA2 Pin Configuration
| Pin 1 | OUT1 β Low-side output channel 1, open drain |
| Pin 2 | OUT2 β Low-side output channel 2, open drain |
| Pin 3 | OUT3 β Low-side output channel 3, open drain |
| Pin 4 | OUT4 β Low-side output channel 4, open drain |
| Pin 5 | GND β Power ground return for outputs |
| Pin 6 | VS β Main supply voltage, 5 V to 28 V |
| Pin 7 | IN1 β Direct input 1, controls OUT1 |
| Pin 8 | IN2 β Direct input 2, controls OUT2 |
| Pin 9 | IN3 β Direct input 3, controls OUT3 |
| Pin 10 | IN4 β Direct input 4, controls OUT4 |
| Pin 11 | VDD β Logic supply, 3 V to 5.5 V |
| Pin 12 | CSN β SPI chip select, active low |
| Pin 13 | SCLK β SPI serial clock |
| Pin 14 | SI β SPI serial data input |
| Pin 15 | SO β SPI serial data output (diagnostic) |
| Pin 16 | INT β Interrupt / fault flag, active low |
| Pin 17 | OUT5 β Low-side output channel 5, open drain |
| Pin 18 | OUT6 β Low-side output channel 6, open drain |
| Pin 19 | OUT7 β Low-side output channel 7, open drain |
| Pin 20 | OUT8 β Low-side output channel 8, open drain |
| Pin 21 | NC β Not connected (per datasheet) |
| Pin 22 | NC β Not connected (per datasheet) |
| Pin 23 | NC β Not connected (per datasheet) |
| Pin 24 | NC β Not connected (per datasheet) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TLE7244SLXUMA2 is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for TLE7244SLXUMA2 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
| Continuous Output Current per Channel | 290 mA | Higher (~600 mA typical) | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Supply Voltage Range | 5 V to 28 V | 5 V to 28 V (family) | 5 V to 28 V (family) | [DATA_NEEDED] | [DATA_NEEDED] |
| 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 |
Key Differentiators
- Highest channel count in the SPIDER family (vs TLE7240SL)
- Integrated SPI plus 4 direct inputs enable limp-home (vs TLE7239SLXUMA1)
- Low-side switch topology for inductive loads (vs BTS5210GXUMA1 (high-side PROFET))
Design Notes
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.
Compliance Information
AEC-Q100 qualified per Infineon product page. RoHS compliant. Lead-free PG-SSOP-24-7 package. Halogen-free per automotive industry standards.
