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ALED6001 数据表(PDF) 1 Page - STMicroelectronics |
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ALED6001 数据表(HTML) 1 Page - STMicroelectronics |
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1 / 26 page  This is information on a product in full production. November 2015 DocID026965 Rev 2 1/26 ALED6001 Automotive-grade PWM-dimmable single channel LED driver with integrated boost controller Datasheet - production data Features • AECQ100 qualification • Switching controller section – 5.5 V to 36 V input voltage range – Very low shutdown current: ISHDN < 10 µA – Internal +5 V LDO for gate driver supply – Internal +3.3 V LDO for device supply – Fixed frequency peak current mode control – Adjustable (100 kHz to 1 MHz) switching frequency – External synchronization for multi-device applications – High performance external MOSFET driver – Cycle-by-cycle external MOSFET OCP – Fixed internal soft-start – Programmable output OVP – Boost, buck-boost and SEPIC topologies supported – Thermal shutdown with autorestart – Output short-circuit detection • LED control section – Up to 60 V output voltage – Constant current control loop – High-side output current sensing circuitry – 30 to 300 mV differential sensing voltage – ± 4% output current reference accuracy – Output overcurrent protection – Sensing resistor failure protection – PWM dimming with auxiliary series switch – Analog dimming Applications • Automotive exterior lighting • Daytime running lights • High and low beam lights • Fog lights • Position lights / blinkers Description The ALED6001 is an automotive-grade (AECQ100 compliant) LED driver that combines a boost controller and high-side current sensing circuitry optimized for driving one string of high- brightness LEDs. The device is compatible with multiple topologies such as boost, SEPIC and floating load buck-boost. PWM dimming of the LED brightness is achieved by means of an external MOSFET in series with the LED string and directly driven by a dedicated pin. The pin that manages the LED current setting, usually connected to an external resistor, can also be used as analog control if a microcontroller is located in the LED module. The high-side current sensing, in combination with a P-channel MOSFET, provides effective protection in case the positive terminal of the LED string is shorted to ground. The high precision current sensing circuitry allows an LED current regulation reference within ± 4% accuracy over the entire temperature range and production spread. A fault output (open-drain) informs the host system of faulty conditions: device overtemperature, output overvoltage (disconnected LED string) and LED overcurrent. Table 1. Device summary TSSOP-16 Order code Package Packaging ALED6001 HTSSOP-16 (exposed pad) Tube ALED6001TR Tape and reel www.st.com |
类似零件编号 - ALED6001 |
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类似说明 - ALED6001 |
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