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AL8843SP-13 LED Driver IC 1 Output DC Regulator Analog PWM Dimming 3A 8-SO-EP
Description
The DIODES™ AL8843 is a hysteresis mode DC-DC step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device can operate from an input supply between 4.5V and 40V and provide an externally adjustable output current up to 3A. Depending upon supply voltage and external components, this converter can provide up to 60W of output power. The AL8843 integrates the power switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current. Dimming can be realized by applying an external control signal to the CTRL pin. The CTRL pin will accept either a DC voltage signal or a PWM signal. The soft-start time can be adjusted by an external capacitor from the CTRL pin to Ground. Applying a voltage of 0.3V or lower to the CTRL pin will shut down the power switch.
Features
Wide Input Voltage Range: 4.5V to 40V
Output Current up to 3A
Internal 40V NDMOS Switch
Typical 4% Output Current Accuracy
Single Pin for On/Off and Brightness Control by DC Voltage or PWM Signal
Recommended Analog Dimming Range: 10% to 100%
Soft-Start
High Efficiency (Up to 97%)
LED Short Protection
Inherent Open-Circuit LED Protection
Over Temperature Protection (OTP)
Up to 1MHz Switching Frequency
SO-8EP Package Available in Green Molding Compound (No Br, Sb)
Totally Lead-Free & Fully RoHS Compliant
Halogen and Antimony Free. “Green” Device
Pin Assignments
Applications
LED retrofit for low voltage halogen
Low voltage industrial lighting
LED backlighting
Illuminated signs
External drivers with multiple channels
specification of AL8843SP-13
Category
Integrated Circuits (ICs)
Power Management (PMIC)
LED Drivers
Mfr
Diodes Incorporated
Series
-
Type
DC DC Regulator
Topology
Step-Down (Buck)
Internal Switch(s)
Yes
Number of Outputs
1
Voltage - Supply (Min)
4.5V
Voltage - Supply (Max)
40V
Voltage - Output
-
Current - Output / Channel
3A
Frequency
1MHz
Dimming
Analog, PWM
Applications
Backlight, Lighting, Signage
Operating Temperature
-40°C ~ 105°C (TA)
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154", 3.90mm Width) Exposed Pad
Supplier Device Package
8-SO-EP
ORIGINAL
Our company ensures that each batch of products comes from the original factory, and can provide original labels and professional testing agency reports.
PRICE
We provide a variety of quotation channels, and sign the order contract after negotiation.
TRANSACTION
After communication and agreement, we will guide you to arrange payment.
DELIVERY CYCLE
Delivery on the same day, generally 5-12 working days, may be slightly delayed during the epidemic, we will follow up the whole process.
TRANSPORT
We will choose the appropriate transportation mode according to your country.
PACKAGING
After communication with you, we will choose the appropriate packaging method according to the weight of the goods to ensure the safe delivery of the goods.
Shenzhen Xinyuanpeng Technology Co., Ltd. is a special distributor focusing on electronic components of global famous brands.
It mainly distributes TI, ST, RENESAS, INFINEON, MICROCHIP, NXP, ON, DIODES and other domestic and foreign brands, and is a well-known wholesaler and channel pro... Shenzhen Xinyuanpeng Technology Co., Ltd. is a special distributor focusing on electronic components of global famous brands.
It mainly distributes TI, ST, RENESAS, INFINEON, MICROCHIP, NXP, ON, DIODES and other domestic and foreign brands, and is a well-known wholesaler and channel pro...
