LED Driver IC 1 Output DC DC Controller SEPIC, Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming 8-SO-EP # AL8866QSP-13 Engineering Specifications **General Description** The AL8866QSP-13 is an automotive-qualified, multi-topology DC-switching LED controller manufactured by Diodes Incorporated. It is designed to control an external power MOSFET for high-power automotive LED lighting systems. The device supports buck, boost, buck-boost and single-ended primary-inductance converter configurations. Its wide input-voltage range makes it suitable for automotive power systems and various high-voltage LED applications. The controller uses fixed-frequency peak current-mode regulation with spread-spectrum frequency modulation to reduce electromagnetic interference. It supports both analog and pulse-width-modulation dimming through the DIM input. An integrated programmable soft-start function gradually increases the inductor and switching currents during startup to reduce output-voltage and current stress. The open-drain fault output provides system-level fault reporting for abnormal operating conditions. **Engineering Specifications** **Manufacturer:** Diodes Incorporated **Manufacturer Part Number:** AL8866QSP-13 **Component Type:** Automotive LED driver controller **Converter Topologies:** Buck, boost, buck-boost and SEPIC **Control Architecture:** Fixed-frequency peak current-mode control **External Switching Device:** External power MOSFET **Minimum Input Voltage:** Four point seven volts **Maximum Input Voltage:** Eighty-five volts **Maximum Output Voltage:** Eighty-five volts **Switching Frequency:** Four hundred kilohertz **Frequency Modulation:** Spread-spectrum modulation for reduced electromagnetic interference **LED Current Control:** External current-sense resistor and external MOSFET configuration **Feedback Voltage:** Two hundred millivolts **Typical Quiescent Current:** One point eight milliamperes **Typical Efficiency:** Up to approximately ninety-three percent, depending on the application circuit and external components **Dimming Methods:** Analog dimming and pulse-width-modulation dimming **Analog Dimming Range:** One percent to one hundred percent **Analog Dimming Dynamic Range:** Greater than one hundred to one **Pulse-Width-Modulation Dimming Ratio:** One hundred to one at a two-hundred-hertz dimming frequency **Pulse-Width-Modulation Frequency Range:** Approximately one hundred hertz to one kilohertz **Full-Brightness Current Accuracy:** Approximately plus or minus three percent **Low-Level Dimming Current Accuracy:** Approximately plus or minus twelve percent at twenty-percent dimming **Soft-Start Function:** Externally programmable **Fault Output:** Active-low open-drain fault indicator **Protection Features:** Output overvoltage protection, LED open-circuit protection, output undervoltage protection, LED short-circuit protection, cycle-by-cycle overcurrent limitation, current-sense resistor short-circuit protection, inductor and diode short-circuit detection, diode open-circuit protection and thermal shutdown **Automotive Qualification:** AEC-Q100 Grade One qualified **Automotive Documentation:** PPAP capable **Manufacturing Standard:** Manufactured in IATF-certified automotive facilities **Operating Temperature Range:** Minus forty degrees Celsius to positive one hundred twenty-five degrees Celsius **Package Type:** Thermally enhanced SO-8 exposed-pad package **Pin Count:** Eight leads with exposed thermal ground pad **Mounting Style:** Surface mount **Packing Method:** Thirteen-inch tape and reel **Standard Packing Quantity:** Two thousand five hundred components per reel **Moisture Sensitivity:** Level One **Terminal Finish:** Matte-tin-plated leads **Environmental Compliance:** Lead-free, RoHS compliant, halogen-free and antimony-free **Typical Applications** Automotive high-beam and low-beam lighting Automotive daytime running lights Automotive fog lights Automotive turn-signal lights Automotive position lights Automotive brake and stop lights High-power exterior LED lighting Multi-topology automotive LED driver modules #AL8866QSP13 #AL8866Q #DiodesIncorporated #LEDDriver #AutomotiveLED #AutomotiveElectronics #BuckConverter #BoostConverter #BuckBoostConverter #SEPICConverter #PowerElectronics #LEDLighting #ElectronicComponents #EngineeringSpecifications

P-Channel 30 V 11A (Ta), 35A (Tc) 1W (Ta) Surface Mount PowerDI3333-8 (Type UX) P-channel enhancement mode MOSFET designed for power switching and power management applications. It features a −30 V drain-source voltage (VDS) rating, −11 A continuous drain current (TA = +25°C), a maximum RDS(ON) of 12 mΩ at VGS = −10 V (21 mΩ at −4.5 V), and is housed in a PowerDI3333-8 (Type UX) package with an ESD-protected gate. #PChannelMOSFET #EnhancementModeMOSFET #30V #11A #LowRDSOn #PowerManagement #PowerSwitching #DCDCConverter #PowerDI33338 #DiodesIncorporated

NPN Bipolar Junction Transistor (BJT) – High-voltage NPN transistor for general-purpose switching and amplification, featuring a 160 V collector-emitter breakdown voltage, 600 mA maximum collector current, and 2.25 W power dissipation. Provides a 130 MHz transition frequency, minimum DC current gain (hFE) of 80 at 10 mA, and 200 mV maximum collector-emitter saturation voltage at 50 mA collector current. Specified for operation over a −55°C to +150°C junction temperature range and housed in a PowerDI™ 5 surface-mount package. #DiodesIncorporated #DXT5551P513 #NPNTransistor #BJT #HighVoltageTransistor #SwitchingTransistor #AmplifierTransistor #160V #600mA #PowerDI5 #DiscreteSemiconductor #EmbeddedSystems

# BZT52C12-7-F ## General Description The BZT52C12-7-F is a surface-mount Zener diode manufactured by Diodes Incorporated and designed for precision voltage regulation, voltage reference generation, overvoltage protection, and signal conditioning applications. The device provides a stable reverse-breakdown voltage characteristic that enables reliable voltage clamping and circuit protection in a wide range of electronic systems. Its compact package, low leakage performance, and robust semiconductor construction make it suitable for consumer electronics, industrial controls, telecommunications equipment, power management circuits, embedded systems, and portable electronic devices. The diode is optimized for applications requiring dependable voltage stabilization and transient protection within space-constrained designs. ## Key Features ### Voltage Regulation Characteristics * Precision Zener voltage regulation * Stable reverse-breakdown performance * Consistent voltage reference capability * Reliable voltage clamping operation * Suitable for regulation and protection applications * Excellent long-term voltage stability ### Electrical Characteristics * Low leakage current performance * Fast response to transient conditions * Stable electrical operation * Reliable reverse-bias characteristics * Low power dissipation design * Suitable for signal and power circuits ### Protection Features * Overvoltage protection capability * Voltage clamping functionality * Transient suppression support * Circuit protection enhancement * Reliable fault-condition response * Improved system robustness ### Package Characteristics * Surface-mount package construction * Compact footprint design * High-density PCB layout compatibility * Automated assembly compatible * Reflow soldering compatible * Space-saving implementation ### Material Construction * Silicon Zener diode technology * High-reliability semiconductor structure * RoHS-compliant materials * Lead-free package construction * Industrial-grade manufacturing quality ### Environmental Characteristics * Long operational service life * Stable operation under industrial conditions * Reliable thermal performance * Resistant to environmental stress * Suitable for continuous-duty applications ### Application Areas * Voltage Reference Circuits * Power Supply Regulation * Overvoltage Protection Systems * Signal Conditioning Circuits * Industrial Control Equipment * Embedded Systems * Telecommunications Equipment * Consumer Electronics * Battery-Powered Devices * Sensor Interface Circuits * Data Communication Equipment * General Electronic Protection Circuits ### Compliance * RoHS Compliant * Lead-Free Compatible * Industrial-Grade Voltage Regulation and Protection Solution ## Manufacturer Diodes Incorporated ## Product Family BZT52 Series Surface-Mount Zener Diodes #BZT52C127F #DiodesIncorporated #ZenerDiode #VoltageReference #VoltageRegulation #OvervoltageProtection #CircuitProtection #SignalConditioning #PowerManagement #EmbeddedSystems #IndustrialElectronics #ConsumerElectronics #ElectronicsEngineering #PCBDesign #SMTComponents

Linear Voltage Regulator IC Positive Fixed 1 Output 150mA TO-92 The AP7381 series is a positive voltage regulator IC. The AP7381 has features of wide input voltage range, high accuracy, low dropout voltage, current limit and ultra-low quiescent current which make it ideal for use in various USB and portable devices. The IC consists of a voltage reference, an error amplifier, a resistor network for setting output voltage, a current limit circuit for current protection, and a chip enable circuit. The AP7381 has 2.8V, 3.3V, 5V and 7V fixed voltage version. The AP7381 is available in space-saving SOT23, SOT89 and TO92 (Ammo Packing) packages.  Wide Input Voltage Range: Up to 40V  Low Dropout Voltage: VDROP = 1000mV @ IOUT = 100mA @ VOUT = 3.3V  Low Ground Current  High Output Voltage Accuracy  Compatible with Low ESR Ceramic Capacitor  Excellent Line/Load Regulation  Thermal Shutdown Function  Short Current Protection Function  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Note 3)  For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/ Applications  E-meters  Battery-powered equipments  Laptops, palmtops, notebook computers  Portable information appliances #AP7381 #LDORegulator #VoltageRegulator #PowerManagement #LinearRegulator #DiodesIncorporated #3V3Regulator #EmbeddedSystems #ElectronicsDesign #CircuitDesign #PMIC #LowPowerDesign