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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Distribution Switches, Load Drivers

STMicroelectronics E-L9823013TR

Name: E-L9823013TR
Brand: STMicroelectronics
SKU: E-L9823013TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: E-L9823013TR

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: 24-SOIC (0.295", 7.50mm Width)

Datasheet:: E-L9823013TR.pdf

Description:: IC PWR DRIVER N-CHANNEL 1:8 24SO

Quantity:: RFQ Add To RFQ list

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Product details

Overview

E-L9823013TR from STMicroelectronics is an octal low-side driver IC designed for automotive bulb, resistive, and inductive load control. It delivers 0.5 A per channel, features cascaded SPI interface up to 3.0 MHz, programmable 50 V output clamping, independent thermal shutdown (SOA protection), and open-load detection - deployed in vehicle lighting and body control modules.

For engineers reviewing the E-L9823013TR datasheet, E-L9823013TR pinout, E-L9823013TR application, or E-L9823013TR equivalent, key selection criteria include output current capability (0.5 A), flyback voltage clamp (50 V typ), SFPD-configurable short-circuit response, diagnostic readback via SO pin, and SO24 package compatibility with automotive PCB layouts.

Technical Context

The L9823 implements eight independent low-side power switches controlled by an 8-bit serial shift register synchronized to CSB and SCLK. Each output includes integrated voltage clamping (50 V typ) for inductive flyback recirculation and supports dual fault-handling modes via the SFPD pin: latch-off on overcurrent (SFPD = low) or sustained current limiting (SFPD = high).

Diagnostic feedback is provided through the same SPI interface: status bits reflect real-time conditions including open load (output off + VOUT < 0.55·VDD), short-to-battery (output on + VOUT > 0.55·VDD), and thermal shutdown. Reset is active-low and OR-combined with internal undervoltage detection at 2.5–3.95 V.

Key Specifications

Parameter	Value and Actual Design Meaning
Output current	0.5 A continuous per channel - sufficient for automotive incandescent lamps and solenoids
Output clamp voltage	50 V typical - enables safe flyback energy absorption without external snubbers
SPI clock frequency	Up to 3.0 MHz - supports fast configuration and diagnostics in real-time body control systems
Standby current	35 µA typical at VDD < 0.5 V - minimizes battery drain during vehicle sleep mode
R_DS(on)	0.8 Ω max at T_j = 25°C - ensures low conduction loss and thermal efficiency
Open-load detection	60 µA sink current - reliably identifies disconnected loads with output disabled
Thermal shutdown	155–180°C threshold - protects against sustained overload or ambient overheating

Pinout & Package

Package: SO24 (Small Outline, 24-pin, 0.60 mm pitch, 15.4 mm × 7.5 mm body). Pin count and layout conform to JEDEC MS-013AC standard with exposed thermal pad (not electrically connected).

Pin/Terminal	Circuit Role	Design Meaning
OUT0–OUT7	Power output terminals	Eight low-side switch drains - directly drive bulbs, relays, or solenoids to GND
CSB	Chip select (active low)	Enables SPI communication and latches data into output registers on rising edge
SCLK	Serial clock input	Controls timing of SI data sampling (falling edge) and SO data shifting (rising edge)
SI	Serial data input	Accepts 8-bit command stream (MSB first: OUT7 → OUT0) to set output states
SO	Serial data output	Tri-stateable diagnostic readback - reports 8-bit status (MSB first) on rising SCLK edges
SFPD	Short-fault protect disable	Selects between latch-off (SFPD = low) or current-limit mode (SFPD = high) for inrush-tolerant loads
RESET	Active-low reset	Clears shift register and forces all outputs OFF; internally pulled down for fail-safe startup
VDD	Logic supply	Single 4.5–5.5 V rail powers logic and gate drivers - no separate V_GS supply needed

Key Features

Feature	Design Value
Programmable output clamping	50 V typical clamp voltage - eliminates need for external flyback diodes in relay/inductor drives
Per-output thermal protection	Independent SOA monitoring per channel - prevents single-fault thermal runaway from disabling full device
Configurable short-circuit response	SFPD pin selects between immediate latch-off (for resistive loads) or current-limit mode (for lamp inrush)
Integrated open-load detection	60 µA diagnostic sink per output - detects broken filaments or disconnected connectors without external circuitry
High EMS immunity	Controlled dV/dt (0.7–3.5 V/µs) and built-in ESD protection (±2 kV HBM) - meets automotive EMC requirements

Applications

Headlamp Control Module

Seat Motor Driver

Use Scenario: Sequential activation of high/low beam, fog, and position lamps in modern LED-incandescent hybrid headlamp assemblies.

IC Role / Device Role / Timing Role: Low-side driver managing eight independent lamp channels with real-time fault reporting and inrush management.

Use Value: Eliminates discrete protection components while enabling diagnostics via SPI - reducing BOM count and enabling predictive maintenance alerts.

Use Scenario: Bidirectional control of seat adjustment motors (forward/reverse) with stall detection and thermal margin monitoring.

IC Role / Device Role / Timing Role: Eight-channel driver powering motor H-bridge half-bridges and sensing motor current via V_DS drop and diagnostic voltage thresholds.

Use Value: Built-in 50 V clamp absorbs back-EMF during sudden stop; SFPD mode avoids false trips during motor startup surge.

Body Control Unit (BCU)

Heated Rear Window Relay Driver

Use Scenario: Centralized switching of door locks, interior lights, trunk release, and window lift circuits across multiple vehicle domains.

IC Role / Device Role / Timing Role: Octal low-side interface between microcontroller and 12 V loads - supporting multiplexed diagnostics and coordinated power sequencing.

Use Value: Single SO24 package replaces eight discrete drivers + protection diodes + sense resistors - improving layout density and system-level reliability.

Use Scenario: Controlled energization of large-area rear window heating elements with overtemperature and open-circuit monitoring.

IC Role / Device Role / Timing Role: High-current (0.5 A/channel) driver for parallel heater segments, using open-load detection to confirm element continuity before full power application.

Use Value: 60 µA diagnostic sink verifies heater filament integrity without adding test current sources - simplifying production line testing.

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal low-side driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLE6232GP	Higher R_DS(on) (1.2 Ω typ), no SFPD pin - fixed latch-off only	Lacks configurable short-circuit response; requires external clamp for >40 V inductive loads	Preferred where cost sensitivity outweighs inrush tolerance and diagnostic flexibility
BD8940FV-M	Lower current rating (0.35 A), no open-load detection, SO20 package	Missing diagnostic readback and thermal SOA protection - limited to non-safety-critical loads	Used in entry-level body electronics where full diagnostics are not required

Compared with TLE6232GP and BD8940FV-M, E-L9823013TR uniquely combines 0.5 A per channel, programmable 50 V clamping, SFPD-selectable fault response, and full 8-bit diagnostic readback - making it suitable for ASIL-B–aligned lighting and actuator subsystems requiring traceable fault reporting.

Availability

E-L9823013TR is available at Aetrix Electronics and suitable for automotive lighting control, body electronics, seat actuation, and heated component management requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for E-L9823013TR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and power management ICs with broad AEC-Q100 qualification coverage.

The L9823 belongs to ST's automotive-grade power driver family, engineered specifically for robust 12 V vehicle electrical systems - emphasizing fault resilience, diagnostic transparency, and seamless integration with MCU-based body control units.

FAQ

What is the function of the SFPD pin on E-L9823013TR?

The SFPD (Short Fault Protect Disable) pin configures the device's overcurrent response: when tied to GND, it enables immediate latch-off upon short-circuit detection; when tied to VDD, it forces current-limiting operation to tolerate lamp inrush currents. This dual-mode behavior eliminates need for external current-sense circuitry and supports both resistive and inductive load types without redesign.

How does E-L9823013TR report open-load faults?

E-L9823013TR detects open loads by sinking 60 µA (typ) through each output when disabled; if the output voltage falls below 0.55·VDD due to missing load, the corresponding diagnostic bit reads low during SPI status readback. This occurs independently per channel and requires no external components - enabling automated end-of-line testing and runtime filament integrity checks.

Can E-L9823013TR drive inductive loads without external flyback diodes?

Yes - E-L9823013TR integrates internal voltage clamping with a typical 50 V threshold, allowing flyback current from relays, solenoids, or motors to recirculate safely within the die. This eliminates external freewheeling diodes in most 12 V automotive applications, reducing board space and component count while maintaining robustness against inductive kickback.

What is the minimum RESET pulse width required for reliable initialization?

E-L9823013TR requires a minimum RESET pulse width of 160 ns (low state) to ensure complete clearing of the internal shift register and forced OFF state of all outputs. This specification is guaranteed across temperature and voltage ranges, and the internal pull-down ensures safe default behavior even if the external MCU reset signal is absent or floating during power-up.

E-L9823013TR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 24-SOIC (0.295", 7.50mm Width)

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Switch Type:: General Purpose

Number of Outputs:: 8

Ratio - Input:Output:: 1:8

Output Configuration:: Low Side

Output Type:: N-Channel

Interface:: SPI

Voltage - Load:: 4.5V ~ 5.5V

Voltage - Supply (Vcc/Vdd):: -

Current - Output (Max):: 500mA

Rds On (Typ):: 800mOhm

Input Type:: -

Features:: -

Fault Protection:: Current Limiting (Fixed), Over Temperature

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 24-SO

E-L9823013TR FAQ

1.How can I place an order for E-L9823013TR through Aetrix?

Please submit a Request for Quotation (RFQ) for E-L9823013TR 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 E-L9823013TR reliable?

The price and inventory of E-L9823013TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for E-L9823013TR is usually 5 days.

3.What payment methods are accepted for E-L9823013TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for E-L9823013TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for E-L9823013TR?

E-L9823013TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your E-L9823013TR 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 E-L9823013TR?

For technical support, including E-L9823013TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your E-L9823013TR requirements.

6.How does Aetrix verify that E-L9823013TR is sourced from the original manufacturer or authorized distributors?

All E-L9823013TR 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 E-L9823013TR meets industry standards.

7.What is the process for return or replacement of E-L9823013TR?

All E-L9823013TR units undergo pre-shipment inspection (PSI). If there is an issue with E-L9823013TR, 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 E-L9823013TR part is unused and in its original packaging.

Return procedure for E-L9823013TR:

1.Submit a request within 90 days.

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

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