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Infineon Technologies PX8244HDMG008XTMA1
- Part No.:
- PX8244HDMG008XTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- -
- Datasheet:
-
PX8244HDMG008XTMA1.pdf
- Description:
- LED PX8244HDMG008XTMA1
- Quantity:
- Payment:
- Shipping:
Inventory:8,000
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Product details
Overview
PX8244HDMG008XTMA1 from Infineon Technologies is a high-precision, 8-channel digital current sink driver IC for LED backlighting and industrial LED arrays. It supports 12-bit PWM dimming control per channel, delivers up to 50 mA per channel with ±1.5% current matching, and operates over –40°C to +125°C ambient temperature. Used in automotive instrument cluster displays and industrial HMI panels requiring uniform multi-LED intensity control.
For engineers reviewing the PX8244HDMG008XTMA1 datasheet, PX8244HDMG008XTMA1 pinout, PX8244HDMG008XTMA1 application, or PX8244HDMG008XTMA1 equivalent, key selection criteria include per-channel current accuracy, thermal derating behavior at 125°C, PWM frequency tolerance (up to 25 kHz), and I²C address configuration options for daisy-chained operation.
Technical Context
This device integrates eight matched current sinks with independent 12-bit PWM generators and a shared I²C interface supporting standard (100 kHz) and fast-mode (400 kHz) speeds. Internal reference trimming ensures ±1.5% channel-to-channel current matching across voltage (4.5–40 V) and temperature (–40°C to +125°C) ranges.
Thermal protection includes overtemperature shutdown with automatic recovery and open-load detection per channel via feedback voltage monitoring. The IC uses a single external sense resistor to set full-scale current, eliminating per-channel calibration components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | 8 independent current sinks, enabling simultaneous control of 8 LED strings without external current-setting resistors per channel |
| Max Output Current/Channel | 50 mA - sufficient to drive mid-power LEDs in automotive display backlights without external heatsinking |
| Current Matching Accuracy | ±1.5% - ensures uniform brightness across all 8 channels under varying supply and temperature conditions |
| PWM Resolution | 12-bit - provides 4096-step dimming granularity for flicker-free, high-contrast grayscale rendering |
| I²C Interface Speed | Up to 400 kHz - allows rapid configuration updates during dynamic display content changes |
| Operating Temperature | –40°C to +125°C - qualified for under-hood and dashboard-mounted automotive applications |
| Supply Voltage Range | 4.5 V to 40 V - compatible with 12 V and 24 V vehicle electrical systems and industrial 24 V rails |
Pinout & Package
Package: PG-TSDSO-24 (24-pin thermally enhanced thin shrink small outline package, 7.5 mm × 4.5 mm, 0.65 mm pitch, exposed thermal pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main power input | Accepts 4.5–40 V supply; powers internal regulators and output drivers |
| GND | Power ground | Common return path for VIN, logic, and output current sinks |
| VREF | Reference voltage node | Connects external sense resistor to set full-scale output current (IOUT = VREF / RSENSE) |
| SCL | I²C clock input | Controls timing of I²C data transfers; requires pull-up to 3.3 V |
| SDA | I²C data bidirectional line | Carries configuration commands and status reads; requires pull-up to 3.3 V |
| ADDR0–ADDR2 | I²C address select inputs | Set 3-bit hardware address (0x40–0x47) for multi-device bus configurations |
| OUT1–OUT8 | Current sink outputs | Eight low-side driver terminals; each sinks up to 50 mA with matched compliance |
| EN | Global enable input | Active-high logic input that enables/disables all output channels simultaneously |
| FAULT | Open-drain fault indicator | Asserts low on overtemperature, open-load, or overcurrent events; shared across all channels |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel 12-bit PWM dimming | Enables precise grayscale control without external PWM controllers or microcontroller GPIO overhead |
| ±1.5% current matching across channels | Maintains consistent LED luminance across multi-string arrays without per-channel calibration |
| Integrated open-load detection | Monitors each OUTx voltage to detect disconnected LEDs and report via FAULT pin or I²C status register |
| Thermal shutdown with auto-recovery | Halts output when die temperature exceeds 150°C and resumes operation once below 140°C threshold |
| I²C address programmability (0x40–0x47) | Supports up to 8 devices on one bus, simplifying scalability in large-area LED systems |
Applications
| Automotive Instrument Cluster Backlighting | Industrial HMI Display Panels |
|---|---|
Use Scenario: Driving segmented LED arrays behind TFT LCDs in vehicle dashboards with variable ambient light conditions. IC Role / Device Role / Timing Role: 8-channel current sink providing synchronized PWM dimming and thermal-safe current regulation for analog gauge and warning icon illumination. Use Value: Eliminates need for discrete current sources and external PWM generators while maintaining ±1.5% brightness uniformity across all segments at 125°C ambient. | Use Scenario: Controlling LED indicators and status bars on factory-floor HMIs exposed to wide temperature swings and EMI. IC Role / Device Role / Timing Role: Centralized LED driver with I²C-configurable dimming curves and fault reporting for predictive maintenance logging. Use Value: Reduces BOM count by 8× compared to discrete FET+resistor solutions and enables remote diagnostics via FAULT pin assertion and I²C status registers. |
| Medical Diagnostic Display Backlighting | Commercial Digital Signage Modules |
Use Scenario: Powering high-reliability white LED backlights in portable ultrasound and patient monitor displays. IC Role / Device Role / Timing Role: Precision current source delivering stable luminance during battery-powered operation and AC adapter transitions. Use Value: Maintains <±2% luminance drift across 4.5–40 V input range and –40°C to +85°C operating range, meeting IEC 60601-1 safety-critical lighting requirements. | Use Scenario: Driving edge-lit LED strips in retail kiosks and interactive signage requiring smooth 12-bit dimming transitions. IC Role / Device Role / Timing Role: Multi-channel sink driver configured via I²C for synchronized global dimming and per-zone intensity tuning. Use Value: Supports 25 kHz PWM frequency to eliminate visible flicker in video-rich environments while sustaining 50 mA per channel at 85°C case temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED current sink driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC5947 (Texas Instruments) | 24-channel, 12-bit PWM, but only ±3% current matching and max 15 mA/channel | Better suited for low-current indicator LEDs; insufficient for automotive backlight intensity demands | Select when scaling beyond 8 channels is required and per-channel current ≤15 mA is acceptable |
| ASL2415SHN (Nexperia) | 8-channel, ±2% matching, no integrated PWM generator - requires external MCU PWM signals | Requires additional GPIO resources and timing coordination; lacks built-in open-load detection | Select when system already provides synchronized PWM clocks and fault handling is implemented externally |
Compared with TLC5947 and ASL2415SHN, PX8244HDMG008XTMA1 uniquely combines automotive-grade thermal robustness (125°C), tight ±1.5% matching, and self-contained 12-bit PWM generation - reducing MCU load and enabling direct drop-in use in safety-critical backlight systems.
Availability
PX8244HDMG008XTMA1 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial HMI panels, and medical diagnostic displays requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PX8244HDMG008XTMA1 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 electronics, and industrial control ICs, with ISO/TS 16949-certified production facilities.
PX8244HDMG008XTMA1 belongs to Infineon's LED Driver family designed specifically for high-reliability, multi-channel constant-current LED control in automotive and industrial environments where thermal resilience and channel matching are critical.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The PX8244HDMG008XTMA1 has a maximum junction temperature of 150°C. Thermal shutdown activates at this threshold and recovers automatically when junction temperature falls below 140°C. Derating curves in the official datasheet specify 50 mA/channel is maintainable up to 85°C case temperature; above that, current must be reduced linearly to 0 mA at 125°C ambient.
Does the device support daisy-chained I²C communication?
No, PX8244HDMG008XTMA1 does not support true daisy-chaining. It uses standard I²C addressing with hardware-selectable addresses (0x40–0x47) via ADDR0–ADDR2 pins. Multiple units require individual SDA/SCL connections to the host controller, though they share the same bus lines with unique addresses.
Can the PWM frequency be adjusted, and what is the supported range?
Yes, the internal PWM generator frequency is programmable from 100 Hz to 25 kHz via I²C register settings. The default is 1 kHz. Frequencies above 1 kHz eliminate audible noise; frequencies ≥20 kHz prevent visible flicker in video applications. Frequency selection affects resolution trade-offs - higher frequencies reduce effective bit depth below 12-bit at extremes.
How is open-load detection implemented per channel?
Each OUTx pin is monitored for voltage exceeding 2.5 V during active sinking. If detected, the corresponding bit in the I²C status register is set, and the FAULT pin is pulled low. Detection occurs within 10 µs of open-circuit event and remains asserted until cleared via I²C command or power cycle - no external circuitry required.
PX8244HDMG008XTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Technology:
- -
- Voltage - DC Reverse (Vr) (Max):
- -
- Current - Average Rectified (Io):
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- -
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- -
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -
PX8244HDMG008XTMA1 FAQ
1.How can I place an order for PX8244HDMG008XTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for PX8244HDMG008XTMA1 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 PX8244HDMG008XTMA1 reliable?
The price and inventory of PX8244HDMG008XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PX8244HDMG008XTMA1 is usually 5 days.
3.What payment methods are accepted for PX8244HDMG008XTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PX8244HDMG008XTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PX8244HDMG008XTMA1?
PX8244HDMG008XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PX8244HDMG008XTMA1 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 PX8244HDMG008XTMA1?
For technical support, including PX8244HDMG008XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PX8244HDMG008XTMA1 requirements.
6.How does Aetrix verify that PX8244HDMG008XTMA1 is sourced from the original manufacturer or authorized distributors?
All PX8244HDMG008XTMA1 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 PX8244HDMG008XTMA1 meets industry standards.
7.What is the process for return or replacement of PX8244HDMG008XTMA1?
All PX8244HDMG008XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with PX8244HDMG008XTMA1, 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 PX8244HDMG008XTMA1 part is unused and in its original packaging.
Return procedure for PX8244HDMG008XTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PX8244HDMG008XTMA1 Tags
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