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Allegro MicroSystems APS13568KLJATR
- Part No.:
- APS13568KLJATR
- Manufacturer:
- Allegro MicroSystems
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
APS13568KLJATR.pdf
- Description:
- IC LED DRVR LIN PWM 150MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,960
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Product details
Overview
APS13568KLJATR from Allegro MicroSystems is an automotive-grade LED driver IC integrating an omnipolar micropower Hall-effect switch and a linear 150 mA current regulator for high-brightness LED strings. It operates from 7–24 V, consumes only 25 µA in micropower mode, and features thermal shutdown, short-to-ground protection, and user-selectable SO polarity via the POL pin. Used in glove box lighting, vanity mirrors, and task illumination where contactless magnetic activation is required.
For engineers reviewing the APS13568KLJATR datasheet, APS13568KLJATR pinout, APS13568KLJATR application, or APS13568KLJATR equivalent, key selection considerations include its AEC-Q100 qualified K-temp range (–40°C to 125°C), 8-pin SOICN package with exposed thermal pad, fade-in/fade-out timing control via external capacitor, and compatibility with PWM dimming on the active-low EN pin.
Technical Context
The APS13568KLJATR implements chopper-stabilized Hall sensing for low drift over temperature and solid-state reliability, with BOP and BRP thresholds of ±40–70 G and ±5–25 G respectively. Its linear current regulation uses a 1.2 V reference at IREF and a fixed GH ratio of 75 to set output current up to 150 mA via external resistor RIREF.
Omnipolar switching allows activation by either north or south magnetic poles, while the POL pin selects SO output polarity - high when magnet present (POL = GND) or low when magnet present (POL = float). The SO output is open-drain and requires external pull-up; it can directly drive EN for autonomous operation or interface with secondary switches, microcontrollers, or PWM sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LED Drive Current | Up to 150 mA sourcing capability; programmable via RIREF to match specific LED string requirements. |
| Hall Operate Point (BOP) | ±40–70 G; enables reliable magnetic actuation across temperature and supply voltage variations. |
| Micropower Quiescent Current | 25 µA typical when LED is off; extends battery life in always-on automotive interior lighting. |
| Thermal Protection Threshold | Activates at TJ = 130°C; reduces current at 3.25%/°C slope to prevent thermal runaway. |
| Short-Circuit Detection Voltage | 1.2–1.8 V at LA pin; disables output during ground fault and auto-recovers when fault clears. |
| Supply Voltage Range | 7–24 V functional range; supports 12 V automotive systems including load dump transients up to 40 V. |
| Fade Timing Control | External capacitor on FADE pin sets 10–90% slew time; enables smooth LED turn-on/turn-off transitions. |
Pinout & Package
Package: 8-pin SOICN (LJ) with exposed thermal pad; RoHS-compliant, matte-tin leadframe, designed for enhanced thermal dissipation in automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Supplies micro-power control circuitry and current regulator; accepts 7–24 V with internal 32–45 V zener clamp. |
| EN | Active-low enable | Directly controls LED driver state; ties to SO for autonomous magnetic control or accepts MCU/PWM signals. |
| SO | Hall switch output | Open-drain, active-low output; polarity selectable via POL; sinks up to 60 mA for driving loads or logic inputs. |
| LA | LED anode output | Current-source output for LED string anode; includes short-to-ground detection and thermal foldback. |
| FADE | Fade timing control | Accepts external capacitor to adjust LED current slew rate; floating disables fade function. |
| IREF | Reference resistor connection | Sets LED current via 1.2 V reference and GH = 75 ratio; RIREF = 600 Ω yields 150 mA nominal. |
| POL | Polarity select | GND or float configures SO output behavior relative to magnetic field presence or absence. |
| GND | Ground reference | Primary return path; must connect directly to system ground plane for stable regulation and protection. |
| PAD | Thermal pad | Exposed copper pad for heat dissipation; recommended to tie to ground plane for optimal RθJA performance. |
Key Features
| Feature | Design Value |
|---|---|
| Omnipolar Hall switch | Eliminates need for magnet polarity orientation during assembly; supports both north and south pole actuation. |
| Selectable SO polarity | POL pin configures whether LED turns on when magnet is present (POL = float) or absent (POL = GND). |
| Fade-in/fade-out control | Capacitor on FADE pin enables user-defined soft-start/soft-stop LED transitions to reduce mechanical stress and EMI. |
| AEC-Q100 Grade K qualification | Validated for automotive interior applications operating from –40°C to 125°C junction temperature. |
| Integrated short-circuit and thermal protection | Auto-disables LA output during ground faults and dynamically reduces current above 130°C without external components. |
Applications
| Automotive Glove Box Lighting | Automotive Vanity Mirror Illumination |
|---|---|
Use Scenario: Magnetic reed switch replacement in vehicle cabin storage compartments where lid closure triggers LED illumination. IC Role / Device Role / Timing Role: APS13568KLJATR acts as Hall-activated LED driver, sourcing regulated current to white LED strings upon lid closure. Use Value: Enables contactless, wear-free switching with 25 µA standby current, extending 12 V battery life in infrequent-use compartments. | Use Scenario: Integrated lighting in sun visor-mounted vanity mirrors activated by flip-down motion using embedded magnet. IC Role / Device Role / Timing Role: APS13568KLJATR provides regulated 150 mA drive and fade-in timing to eliminate flicker during mirror deployment. Use Value: Omnipolar Hall sensing ensures consistent activation regardless of magnet orientation; thermal foldback prevents overheating during extended use. |
| Task Lighting for Industrial Consoles | Consumer Electronics Status Indication |
Use Scenario: Under-cabinet or panel-mounted task lights in factory HMI enclosures controlled by proximity magnet. IC Role / Device Role / Timing Role: APS13568KLJATR serves as self-contained magnetic switch + LED driver, eliminating discrete Hall + MOSFET + current sense design. Use Value: Reduces BOM count and layout area; SO output supports daisy-chaining multiple units for synchronized lighting zones. | Use Scenario: Status backlighting in portable devices (e.g., smart remotes, docking stations) triggered by magnetic cover closure. IC Role / Device Role / Timing Role: APS13568KLJATR delivers low-power, reliable LED activation with fade timing for premium UX feedback. Use Value: Micropower operation (25 µA) preserves battery life; 8-pin SOICN footprint enables compact integration into space-constrained consumer PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Hall-activated LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| APS13567KLJATR | Same pinout and Hall functionality but lacks FADE pin and fade control; no external capacitor support for soft transitions. | Not suitable for applications requiring smooth LED turn-on/turn-off; limited to simple on/off lighting. | Select APS13567KLJATR only if fade timing is unnecessary and cost reduction is prioritized. |
| TLE4913-2K | Separate Hall switch IC (open-drain) without integrated LED driver; requires external current regulator and protection circuitry. | Increases design complexity and component count; lacks built-in thermal/short protection and current accuracy. | Choose TLE4913-2K only when modular architecture is required or when higher voltage (>24 V) operation is needed. |
Compared with APS13567KLJATR, APS13568KLJATR adds fade control and maintains identical Hall sensitivity and AEC-Q100 qualification; versus TLE4913-2K, it integrates regulation, protection, and timing in one die-reducing PCB area, bill-of-materials, and validation effort for automotive interior lighting.
Availability
APS13568KLJATR is available at Aetrix Electronics and suitable for automotive interior lighting, industrial task illumination, and consumer status indication requiring stable component supply and long-term lifecycle support.
Supply support for APS13568KLJATR 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
Allegro MicroSystems is a U.S.-based semiconductor company specializing in magnetic sensing, power ICs, and motor driver solutions for automotive and industrial markets.
The APS13568KLJATR belongs to Allegro's Hall-effect LED driver product line, engineered specifically for contactless, robust, and thermally protected interior lighting in automotive cabins and harsh-environment equipment.
FAQ
What is the operating temperature range for the APS13568KLJATR?
The APS13568KLJATR is qualified for the "K" temperature grade per AEC-Q100, supporting ambient operation from –40°C to 125°C. Its internal thermal monitor activates at 130°C junction temperature and initiates current foldback to protect both the APS13568KLJATR and connected LEDs under sustained high-temperature conditions.
How does the POL pin affect the behavior of the APS13568KLJATR?
The POL pin on the APS13568KLJATR determines the polarity relationship between magnetic field presence and the SO output state. When POL is grounded, SO goes high when a magnet is detected; when POL is left floating, SO goes low when a magnet is detected. This allows system designers to match the APS13568KLJATR's output logic to existing EN or control signal requirements without external inverters.
Can the APS13568KLJATR drive multiple LEDs in series?
Yes, the APS13568KLJATR drives a single LED string connected to the LA pin, with current regulation maintained across the entire string. It does not support multiple independent outputs, but the 150 mA sourcing capability and 2.4 V dropout voltage allow driving typical white LED strings of 3–5 devices at 12 V supply. Short-circuit protection remains active even if individual LEDs fail shorted.
What protection features are integrated into the APS13568KLJATR?
The APS13568KLJATR includes short-to-ground detection at the LA pin (1.2–1.8 V threshold), thermal monitoring with current foldback starting at 130°C, overtemperature shutdown at 170°C, reverse-battery tolerance, and 40 V load-dump compliance without external components. These protections operate autonomously and require no configuration or external circuitry.
Is the APS13568KLJATR still in production and available for new designs?
No - the APS13568KLJATR is marked as discontinued by Allegro MicroSystems, with final status change dated February 1, 2026. It should not be selected for new design applications. Samples are no longer available, and long-term supply is not guaranteed. Customers are advised to consult Allegro's official product change notifications for migration paths to active alternatives such as the APS13567KLJATR or newer generation Hall-LED drivers.
APS13568KLJATR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Allegro MicroSystems
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Type:
- Linear
- Topology:
- -
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 7V
- Voltage - Supply (Max):
- 24V
- Voltage - Output:
- -
- Current - Output / Channel:
- 150mA
- Frequency:
- -
- Dimming:
- PWM
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC-EP
APS13568KLJATR FAQ
1.How can I place an order for APS13568KLJATR through Aetrix?
Please submit a Request for Quotation (RFQ) for APS13568KLJATR 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 APS13568KLJATR reliable?
The price and inventory of APS13568KLJATR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APS13568KLJATR is usually 5 days.
3.What payment methods are accepted for APS13568KLJATR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APS13568KLJATR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APS13568KLJATR?
APS13568KLJATR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APS13568KLJATR 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 APS13568KLJATR?
For technical support, including APS13568KLJATR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APS13568KLJATR requirements.
6.How does Aetrix verify that APS13568KLJATR is sourced from the original manufacturer or authorized distributors?
All APS13568KLJATR 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 APS13568KLJATR meets industry standards.
7.What is the process for return or replacement of APS13568KLJATR?
All APS13568KLJATR units undergo pre-shipment inspection (PSI). If there is an issue with APS13568KLJATR, 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 APS13568KLJATR part is unused and in its original packaging.
Return procedure for APS13568KLJATR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APS13568KLJATR Tags
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