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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Current Regulation/Management

Infineon Technologies TLE72422GXUMA1

Name: TLE72422GXUMA1
Brand: Infineon Technologies
SKU: TLE72422GXUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE72422GXUMA1

Manufacturer:: Infineon Technologies

Category:: Current Regulation/Management

Package:: 28-SOIC (0.295", 7.50mm Width)

Datasheet:: TLE72422GXUMA1.pdf

Description:: IC CURRENT SOURCE DSO28

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TLE72422GXUMA1 from Infineon Technologies is a 4-channel automotive-grade low-side constant current pre-driver IC for solenoid control, supporting programmable 11-bit current setpoint (0–1.2 A typ), SPI-configurable PWM frequency (50 Hz–4 kHz), and per-channel PI control with KP/KI tuning. It operates in on/off or constant-current mode and integrates diagnostics including open-load and overcurrent detection.

For engineers reviewing the TLE72422GXUMA1 datasheet, TLE72422GXUMA1 pinout, TLE72422GXUMA1 application, or TLE72422GXUMA1 equivalent, key selection criteria include channel independence, autozero-enabled current measurement accuracy (±2% FS over temp), transient-mode settling acceleration, dither-programmable current ripple suppression, and AEC-Q100 qualification for transmission solenoid systems.

Technical Context

The TLE72422GXUMA1 implements a closed-loop constant-current architecture per channel using an internal 11-bit DAC, analog current-sense amplifier, and digital PI controller. Each channel supports independent configuration via 32-bit SPI slave interface, with dedicated registers for current setpoint, KP/KI coefficients, dither amplitude/period, and fault masking.

It features dual operational modes: steady-state PWM control with fixed frequency and autozero-corrected current feedback, and transient mode - a hysteretic state machine triggered by large setpoint steps - which bypasses the PI loop to minimize current settling time. Synchronization across channels and devices is enabled via PHASE_SYNC pin and programmable phase delay.

Key Specifications

Parameter	Value and Actual Design Meaning
Channels	4 independent low-side pre-driver channels with individual SPI register mapping
Output Current Range	0–1.2 A typical with 0.2 Ω sense resistor; enables precise force control in VFS solenoids
Current Resolution	0.78125 mA/bit (11-bit); supports fine-grained current tuning for closed-loop position/pressure regulation
PWM Frequency Range	50 Hz to 4 kHz (typ); adjustable via main period divider (N = 79 to 214−1) for noise and efficiency trade-offs
Diagnostic Coverage	Detects open load (on/off state), short-to-ground, and overcurrent with programmable threshold/delay/retry
Autozero Accuracy	±2% full-scale error over temperature when autozero enabled; eliminates amplifier offset drift in long-duration control
Logic Interface	3.3 V / 5 V compatible SPI slave only; active-low RESET_B and ENABLE pins for system-level safety sequencing

Pinout & Package

Package: PG-DSO-28 (28-pin exposed pad SOIC), RoHS-compliant, AEC-Q100 qualified, thermal pad optimized for automotive under-hood conduction cooling.

Pin/Terminal	Circuit Role	Design Meaning
BAT	Power supply input	Connects to battery rail (5.5–28 V); includes overvoltage shutdown protection at >32 V
GND	Ground reference	Common return for analog/digital domains; separate AGND/DGND not implemented - single GND plane required
OUT1–OUT4	Low-side gate drive outputs	Drive external N-channel MOSFET gates; each capable of sinking ≥100 mA peak for logic-level FETs
POS1–POS4	High-side current sense inputs	Monitor solenoid current via external sense resistor; used with NEGx for differential sensing
NEG1–NEG4	Low-side current sense returns	Completes Kelvin sense path; minimizes PCB trace resistance impact on current accuracy
SPI_MOSI / SPI_MISO / SPI_SCLK / SPI_CS	Serial peripheral interface	32-bit SPI slave interface; no hardware flow control; CS must be held low for full message burst
ENABLE	Global channel enable	Active-high; freezes all output states when deasserted; used for functional safety shutdown
RESET_B	Asynchronous reset	Active-low; clears all SPI registers to default values and disables all channels immediately
FAULT	Open-drain fault indicator	Asserts low on programmed faults (e.g., overcurrent, open load); requires external pull-up to MCU I/O
PHASE_SYNC	Inter-device synchronization input	Edge-triggered input to align PWM phase across multiple TLE72422GXUMA1 devices in multi-solenoid modules

Key Features

Feature	Design Value
Per-channel PI controller	KP and KI coefficients individually programmable via SPI Message #5 to optimize response for diverse solenoid L/R time constants
Transient mode acceleration	Automatically engages hysteretic control on large setpoint steps (>programmable threshold); reduces current settling time by up to 60% vs. PI-only
Programmable dither	Triangular waveform superimposed on setpoint; independently configurable amplitude (step size) and period per channel to suppress mechanical resonance
Autozero calibration	Self-calibrates input amplifier offsets during zero-current periods (256 consecutive PWM cycles); maintains ±2% FS accuracy over −40°C to +150°C
Comprehensive diagnostics	On-chip detection of open load (both states), short-to-ground, and overcurrent - all with user-defined thresholds and timing windows

Applications

Automatic Transmission Solenoids

Exhaust Gas Recirculation (EGR) Valve

Use Scenario: Precise hydraulic pressure modulation in torque converter lock-up and shift control solenoids within 8-speed automatic transmissions.

IC Role / Device Role / Timing Role: Low-side pre-driver executing closed-loop constant current control with real-time PI tuning and transient-mode acceleration for <50 ms gear-shift transitions.

Use Value: Enables deterministic current ramping and hold stability under wide temperature and voltage variation, meeting ASAM MCAL driver requirements for ISO 26262 ASIL-B systems.

Use Scenario: Regulating EGR valve lift position in diesel and gasoline engines to meet Tier 4/BS VI NO_x emission limits.

IC Role / Device Role / Timing Role: Four-channel solenoid driver managing parallel EGR actuator coils with synchronized PWM to eliminate beat-frequency vibration.

Use Value: Dither programming suppresses 80–120 Hz mechanical resonance in EGR pintle assemblies, reducing acoustic noise and valve wear.

Idle Air Control (IAC) Valve

Suspension Damping Control

Use Scenario: Maintaining stable engine idle speed during accessory load transients (e.g., A/C compressor engagement) in ICE powertrains.

IC Role / Device Role / Timing Role: Constant-current driver for rotary solenoid-based IAC actuators, using autozero to reject thermal drift during extended hot-soak conditions.

Use Value: ±2% current accuracy over temperature ensures consistent air bypass volume, eliminating idle hunting and enabling tighter OBD-II misfire detection margins.

Use Scenario: Real-time damping force adjustment in semi-active magnetorheological (MR) shock absorbers for adaptive chassis control.

IC Role / Device Role / Timing Role: High-precision current source driving MR fluid coil with fast transient response to vehicle body acceleration signals from IMU.

Use Value: Sub-100 µs current step response in transient mode allows damping force updates aligned with 100 Hz suspension dynamics, improving ride comfort metrics by >15%.

Equivalent & Alternatives

The following parts are listed as comparable options for similar constant-current solenoid pre-driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLE72432GXUMA1	Same pinout and SPI protocol; adds integrated charge pump for enhanced gate drive into high-C_iss MOSFETs; higher V_GS drive capability (10 V)	Required for driving high-threshold MOSFETs (e.g., 4.5 V V_GS(th)) in high-temperature environments where gate drive margin is critical	Select when using MOSFETs with R_DS(on) < 5 mΩ or operating above 135°C ambient
BD37112EFV-M	3-channel device; no SPI interface; uses analog voltage input for current setpoint; lacks autozero, dither, and transient mode	Limited to fixed-function, non-reprogrammable solenoid drivers in cost-sensitive entry-level platforms without diagnostic requirements	Select only for legacy designs requiring drop-in replacement without firmware changes or diagnostic compliance

Compared with TLE72422GXUMA1, TLE72432GXUMA1 offers superior gate drive strength for demanding MOSFETs but shares identical control architecture, while BD37112EFV-M sacrifices programmability and diagnostics for lower BOM cost and simpler integration - making it unsuitable for ASIL-B or variable-force applications.

Availability

TLE72422GXUMA1 is available at Aetrix Electronics and suitable for automotive transmission control units, EGR actuator modules, idle air control systems, and semi-active suspension ECUs requiring stable component supply across extended product lifecycles.

Supply support for TLE72422GXUMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and industrial control solutions, with global manufacturing and AEC-Q100 validation infrastructure.

The TLE72422GXUMA1 belongs to Infineon's TLE724x family of constant-current solenoid pre-drivers, designed specifically for ASIL-B compliant electro-hydraulic actuation in modern powertrain and chassis systems.

FAQ

What is the minimum sense resistor value supported for 1.2 A operation?

The datasheet specifies 0.2 Ω as the nominal sense resistor for full 1.2 A range. Lower values (e.g., 0.1 Ω) are feasible if the resulting 120 mV sense voltage remains within the IC's 0–100 mV input range after accounting for PCB trace resistance and noise margin - but require recalibration of current setpoint scaling and may reduce diagnostic sensitivity.

Does TLE72422GXUMA1 support daisy-chained SPI communication?

No. The device implements a standard 4-wire SPI slave interface (MOSI/MISO/SCLK/CS) with no hardware daisy-chain capability. Multi-device synchronization relies on shared PHASE_SYNC signal and individual CS lines - requiring one GPIO per device in the host MCU.

How is overcurrent protection triggered and cleared?

Overcurrent is detected at the POSx pin when sensed voltage exceeds the SPI-programmable threshold. After programmable delay, FAULT pin asserts low and channels disable. Recovery requires either RESET_B assertion or clearing the fault flag via SPI Message #9 followed by re-enabling via Message #7 - no automatic retry unless configured in SPI Message #7.

Can the autozero function be disabled per channel?

Yes. Autozero is globally enabled or disabled via the AUTOZERO_EN bit in SPI Message #7. When disabled, the IC skips the 256-cycle zero-current calibration sequence and uses fixed amplifier offset compensation - resulting in reduced current accuracy (±5% FS) over temperature but faster startup from standby.

TLE72422GXUMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 28-SOIC (0.295", 7.50mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Current Source

Sensing Method:: Low-Side

Accuracy:: -

Voltage - Input:: 5.5V ~ 42V

Current - Output:: 30mA

Operating Temperature:: -40°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-DSO-28

TLE72422GXUMA1 FAQ

1.How can I place an order for TLE72422GXUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE72422GXUMA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TLE72422GXUMA1 reliable?

The price and inventory of TLE72422GXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE72422GXUMA1 is usually 5 days.

3.What payment methods are accepted for TLE72422GXUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE72422GXUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE72422GXUMA1?

TLE72422GXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE72422GXUMA1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TLE72422GXUMA1?

For technical support, including TLE72422GXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE72422GXUMA1 requirements.

6.How does Aetrix verify that TLE72422GXUMA1 is sourced from the original manufacturer or authorized distributors?

All TLE72422GXUMA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLE72422GXUMA1 meets industry standards.

7.What is the process for return or replacement of TLE72422GXUMA1?

All TLE72422GXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE72422GXUMA1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TLE72422GXUMA1 part is unused and in its original packaging.

Return procedure for TLE72422GXUMA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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