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LM3560 Datasheet(PDF) 2 Page - Texas Instruments |
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LM3560 Datasheet(HTML) 2 Page - Texas Instruments |
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2 / 48 page  A1 A2 B1 B2 B3 Top View A3 C2 C1 C3 D2 D3 A4 B4 C4 D4 D1 LM3560 SNOSB43B – SEPTEMBER 2011 – REVISED AUGUST 2013 www.ti.com DESCRIPTION (CONTINUED) The LM3560 is controlled via an I2C-compatible interface. Features include: an internal 4-bit ADC to monitor the LED voltage, independent LED current control, a hardware flash enable allowing a logic input to trigger the flash pulse, dual TX inputs which force the flash pulse into a low-current torch mode allowing for synchronization to RF power amplifier events or other high-current conditions, and an integrated comparator designed to monitor an NTC thermistor and provide an interrupt to the LED current. Additionally, an active high HWEN input provides a hardware shutdown during system software failures. The 2MHz switching frequency, over-voltage protection and adjustable current limit allow for the use of tiny, low- profile (1 µH and 2.2 µH) inductors and (10 µF) ceramic capacitors. The device is available in a ultra-small 16- bump (1.97mm x 1.97mm x 0.6mm) DSBGA package and operates over the −40°C to +85°C temperature range. Connection Diagram 16-Bump 1.97 mm x 1.97 mm x 0.6 mm DSBGA Package YZR0016 PIN DESCRIPTIONS Pin Name Function A1 LED1 High Side Current Source Output for Flash LED. A2, B2 OUT Step-Up DC/DC Converter Output. Connect a 10 µF ceramic capacitor between this pin and GND. A3, B3 SW Drain Connection for Internal NMOS and Synchronous PMOS Switches. A4, B4 GND Ground B1 LED2 High-Side Current Source Output for Flash LED. LEDI/NTC Configurable as a High-Side Current Source Output for Indicator LED or Comparator Input for LED C1 Temperature Sensing. TX1/TORCH/ Configurable as a Dual-Polarity RF Power Amplifier Synchronization Input, an Interrupt Output, or as C2 GPIO1 a General Purpose Logic I/O. This pin has an internal 300k Ω pull down to GND. C3 STROBE Active High Hardware Flash Enable. Drive STROBE high to turn on the Flash pulse. This pin has an internal 300 k Ω pull down to GND. C4 IN Input Voltage Connection. Connect IN to the input supply, and bypass to GND with a minimum 10 µF ceramic capacitor. D1 TX2/INT/GPIO2 Configurable as a Dual-Polarity Power Amplifier Synchronization Input, an Interrupt Output, or as a General Purpose Logic I/O. This pin has an internal 300 k Ω pull down to GND. D2 SDA Serial Data Input/Output. High impedance in shutdown or in power down. D3 SCL Serial Clock Input. High impedance in shutdown or in power down. Logic High Hardware Enable. HWEN is a high impedance input and is normally connected with an D4 HWEN external pull up resistor to a logic high voltage. This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. 2 Submit Documentation Feedback Copyright © 2011–2013, Texas Instruments Incorporated Product Folder Links: LM3560 |
Similar Part No. - LM3560_14 |
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Similar Description - LM3560_14 |
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