AMS1072 AMS [Advanced Monolithic Systems Ltd], AMS1072 Datasheet
AMS1072
Related parts for AMS1072
AMS1072 Summary of contents
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... DESCRIPTION The AMS1072 is a step-up converter designed for driving white LEDs (13 strings of 3 LEDs each) from a 5V system rail. The AMS1072 uses a current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense resistor. Its low 104mV feedback voltage reduces power loss and improves efficiency ...
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... Advanced Monolithic Systems Temperature –40°C to +85°C to 25V IN Symbol Condition 0.15V UVLO V Rising Rising http://www.ams-semitech.com AMS1072 Min Typ Max Units 2 0.1 1 µA 690 750 µA 1.0 1.3 1.5 MHz 2.25 2. ...
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... SW. 2 GND Ground. Feedback Input. The AMS1072 regulates the voltage across the current sense resistor between FB and GND. Connect a current sense resistor from the bottom the LED string to GND. Connect the bottom of the LED string to FB. The regulation voltage is 104mV ...
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... Functional Block Diagram + FB - AMPLIFIER 104mV 1.3MHz OSC APPLICATION INFORMATION MBR0520 AMS1072 GND × I 104 mV LED R 1 Advanced Monolithic Systems - CONTROL LOGIC + PWM COMPARATOR + 9 Strings Total + R 2 × http://www.ams-semitech.com AMS1072 GND CURRENT SENSE AMPLIFIER ...
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... LED2 LED3 AMS1072 FB Dimming Control Using a DC Voltage AMS1072 PWM EN 1KHz or below Dimming Control Using a Logic Signal Advanced Monolithic Systems LED1 LED2 LED3 PWM FB PWM signal is above 1KHz Dimming Control Using a Filtered PWM Signal 5 http://www.ams-semitech.com AMS1072 LED1 LED2 AMS1072 FB LED3 ...
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... PACKAGE INFORMATION 2.80 3. TOP VIEW 0.84 0.90 0.30 0.95 BSC 0.50 FRONT VIEW GAUGE PLANE 0.25 BSC Advanced Monolithic Systems SOT23-6 4 1.20 TYP 1.50 2.60 1.70 3.00 3 1.00 MAX SEATING PLANE 0.00 0.10 0.30 0.50 6 http://www.ams-semitech.com AMS1072 0.95 0.60 BSC TYP RECOMMENDED LAND PATTERN SEE DETAIL "A" SIDE VIEW NOTE: ALL DIMENSIONS ARE IN MILLIMETERS. 2.60 TYP 0.09 0.20 ...