TLE8444SLXUMA1 - Quad Half-Bridge Motor Driver, 24V, AEC-Q100 | Infineon
MPN: TLE8444SLXUMA1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.24 | $4.24 |
| 10 | $3.82 | $38.20 |
| 100 | $3.1 | $310.00 |
| 500 | $2.61 | $1,305.00 |
| 1,000 | $2.18 | $2,180.00 |
Drop-in alternatives for TLE8444SLXUMA1 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:
TLE8444SL
β Drop-Inπ Reference alternative (not in catalog)
TLE8444SLXT
β Drop-Inπ Reference alternative (not in catalog)
TLE8444SLXUMA1 Maximum Ratings & Electrical Characteristics
| Motor Type | Bipolar, Unipolar DC / Stepper |
| Topology | Quad Half-Bridge |
| Number of Outputs | 4 half-bridges |
| Supply Voltage (VBB) | 4.5 V to 24 V |
| Overcurrent Shutdown | 0.9 A typical per channel |
| On-Resistance (RDS(on)) | 1.3 Ohm typical per switch |
| Interface | Parallel (direct logic input) |
| Technology | SPT BiCDMOS (Bipolar + CMOS + DMOS) |
| Operating Temperature | -40 C to +150 C junction |
| Package | PG-SSOP-24-7 (exposed pad) |
| Mounting Type | Surface Mount |
| Pin Count | 24 |
| AEC-Q100 Qualification | Qualified (automotive grade) |
| RoHS Status | Compliant |
| Integrated Freewheeling Diodes | Yes |
| Diagnostic Features | Open load, short-to-GND, short-to-VBB, overtemperature |
| Undervoltage Lockout | Yes |
TLE8444SLXUMA1 Pin Configuration
| Pin 1 | GND β Ground reference |
| Pin 2 | OUT1 β Half-bridge 1 output (high-side drain / low-side drain) |
| Pin 3 | VBB β Battery supply voltage (4.5 V - 24 V) |
| Pin 4 | OUT2 β Half-bridge 2 output |
| Pin 5 | GND β Ground |
| Pin 6 | IN1 β Logic input 1 (high-side enable when high) |
| Pin 7 | IN2 β Logic input 2 (low-side enable when high) |
| Pin 8 | IN3 β Logic input 3 (high-side enable channel 3) |
| Pin 9 | IN4 β Logic input 4 (low-side enable channel 4) |
| Pin 10 | INH β Inhibit / master enable (active low) |
| Pin 11 | GND β Ground |
| Pin 12 | OUT3 β Half-bridge 3 output |
| Pin 13 | VBB β Battery supply voltage |
| Pin 14 | OUT4 β Half-bridge 4 output |
| Pin 15 | GND β Ground |
| Pin 16 | NC β Not connected (per datasheet) |
| Pin 17 | NC β Not connected (per datasheet) |
| Pin 18 | NC β Not connected (per datasheet) |
| Pin 19 | NC β Not connected (per datasheet) |
| Pin 20 | NC β Not connected (per datasheet) |
| 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 | EP β Exposed thermal pad - must be soldered to PCB copper pour for heat dissipation |
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
TLE8444SLXUMA1 is suitable for 6 applications: Automotive HVAC Flap Actuators, Headlight Beam-Leveling Motor Drive, Industrial Stepper Motor Control, Solenoid and Valve Driver Array, DC Motor Bidirectional Drive (Forward/Reverse), LED Array and Indicator Matrix.
Automotive HVAC Flap Actuators
The TLE8444SLXUMA1's four half-bridges directly drive up to four small DC brush motors used in HVAC mode-door, recirculation, and temperature-mix flaps. Each half-bridge delivers up to 0.9 A continuous with overcurrent shutdown, well matched to actuator stall currents of 200-500 mA. The exposed PG-SSOP-24-7 pad keeps junction temperature within the -40 C to +150 C automotive grade envelope. AEC-Q100 qualification permits direct integration into under-dash ECUs.
Recommended
Headlight Beam-Leveling Motor Drive
Two of the TLE8444SLXUMA1's four half-bridges configured as a single full H-bridge drive the bi-directional leveling motor in adaptive headlamp modules. The 1.3 Ohm RDS(on) minimizes conduction loss at the typical 200-400 mA operating current, while integrated open-load and short-to-ground diagnostics detect mechanical stalls. AEC-Q100 Grade 0 temperature rating tolerates under-hood thermal stress. Logic-level inputs interface directly to 3.3 V body-controller MCUs.
Recommended
Industrial Stepper Motor Control
Wire the TLE8444SLXUMA1's four outputs as two full H-bridges to drive a bipolar stepper motor with up to 0.9 A peak phase current. The 1.3 Ohm RDS(on) provides adequate torque margin for NEMA 11 and small NEMA 17 frame sizes, while the parallel interface allows direct connection to industrial PLCs or microcontroller GPIO. The exposed thermal pad supports continuous four-channel operation on a 4-layer PCB.
Recommended
Solenoid and Valve Driver Array
Each half-bridge can drive a low-side solenoid or relay coil, and pairs of bridges form push-pull valve actuators. The TLE8444SLXUMA1's integrated freewheeling diodes eliminate external flyback components, while the 0.9 A overcurrent threshold protects against coil short circuits. Diagnostic feedback flags open-load and short-to-battery conditions to the host MCU, critical for safety-critical fluid control systems.
Recommended
DC Motor Bidirectional Drive (Forward/Reverse)
Two half-bridges of the TLE8444SLXUMA1 form a complete H-bridge for bidirectional control of a single brushed DC motor in applications such as seat adjusters, mirror tilt, or window lift modules. With 1.3 Ohm RDS(on) per switch and 0.9 A overcurrent protection, the driver handles small motor inrush transients. AEC-Q100 qualification and the SSOP-24 footprint support direct placement on compact automotive PCBAs.
Recommended
LED Array and Indicator Matrix
The TLE8444SLXUMA1's four half-bridges drive up to four independent LED strings with PWM dimming via the logic inputs. Each low-side switch sources up to 0.9 A, sufficient for automotive interior lighting, status indicators, or small signage arrays. The device's parallel interface allows direct 3.3 V MCU control with no driver level shifters required, reducing BOM cost versus SPI-led alternatives.
Recommended
Recommended Products Summary
Engineering reference data for TLE8444SLXUMA1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TLE8444SL | TLE8444SLXT |
|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies - same | Infineon Technologies - same |
| Package | PG-SSOP-24-7 (exposed pad) | PG-SSOP-24-7 - same | PG-SSOP-24-7 - same |
| Topology | Quad Half-Bridge | Quad Half-Bridge - same | Quad Half-Bridge - same |
| Supply Voltage | 4.5 V to 24 V | 4.5 V to 24 V | 4.5 V to 24 V |
| On-Resistance (RDS(on)) | 1.3 Ohm typical | 1.3 Ohm typical | 1.3 Ohm typical |
| Overcurrent Shutdown | 0.9 A per channel | 0.9 A per channel | 0.9 A per channel |
| Interface | Parallel | Parallel | Parallel |
| AEC-Q100 | Qualified | Qualified | Qualified |
Key Differentiators
- Quad half-bridge topology in a single SSOP-24 package (vs BTN7971B (single half-bridge, TO-263 package))
- Parallel logic interface (no SPI required) (vs TLE8082ESXUMA1 (LIN interface))
- AEC-Q100 Grade 0 with 150 C junction temperature (vs Industrial-only motor drivers without AEC-Q100)
Design Notes
Estimated: at VBB=12 V, full H-bridge output driving 500 mA continuous through both switches, conduction loss per switch is approximately 325 mW (I^2 x RDS(on)). Four bridges fully loaded would dissipate around 1.3 W. The PG-SSOP-24-7 exposed pad is the primary thermal path - solder it to a minimum 1 sq.in. copper pour on a 4-layer PCB to keep junction temperature rise within the 150 C automotive limit.
Place a 100 nF ceramic decoupling capacitor as close as possible to the VBB pin to suppress supply transients caused by DMOS switching. Add a bulk electrolytic (>= 47 uF) on the VBB rail to handle motor back-EMF. The integrated freewheeling diodes handle inductive kickback, but external TVS protection is recommended for severe automotive load-dump events exceeding 35 V transient rating.
Route the high-current OUT1-OUT4 traces with minimum 2 oz copper or wider traces to limit voltage drop. Keep logic inputs (IN1-IN4, INH) physically separated from power outputs to avoid capacitive coupling that could falsely trigger logic transitions. Place the exposed thermal pad on a continuous copper plane with thermal vias (0.3 mm drill, 1 mm pitch) to inner copper planes for optimal heat spreading.
Do not drive the logic inputs (IN1-IN4) with voltages exceeding 5.5 V; the inputs are 5 V CMOS tolerant and 3.3 V compatible but not 12 V tolerant. Do not leave the INH pin floating - tie it to logic high through a 10 kOhm resistor to ensure the device defaults to enabled state at power-up. Never operate without the exposed thermal pad soldered, as thermal resistance degrades sharply and may trigger overtemperature shutdown.
Compliance Information
AEC-Q100 qualified per Newark product description and Infineon automotive marketing. RoHS and REACH compliance confirmed by Infineon product page. Halogen-free status not explicitly stated in the verified web data.
