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LM3648YFFR Fiches technique(PDF) 3 Page - Texas Instruments |
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LM3648YFFR Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 38 page Top View A1 A2 B1 B2 B3 Top View A3 C2 C1 C3 D2 D3 D1 Pin A1 LM3648, LM3648TT www.ti.com SNVSA68B – OCTOBER 2014 – REVISED SEPTEMBER 2015 5 Pin Configuration and Functions YFF Package 12-Pin DSBGA Pin Functions PIN TYPE(1) DESCRIPTION NUMBER NAME A1 GND G Ground Input voltage connection. Connect IN to the input supply and bypass to GND with a 10- A2 IN P µF or larger ceramic capacitor. A3 SDA I/O Serial data input/output in the I2C Mode on LM3648. B1 SW P Drain connection for Internal NMOS and Synchronous PMOS Switches. Active high hardware flash enable. Drive STROBE high to turn on Flash pulse. Internal B2 STROBE I pulldown resistor of 300 k Ω between STROBE and GND. B3 SCL I Serial clock input for LM3648. Step-up DC-DC converter output. Connect a 10-µF ceramic capacitor between this C1 OUT P terminal and GND. Active high enable pin. High = Standby, Low = Shutdown/Reset. Internal pulldown C2 HWEN I resistor of 300 k Ω between HWEN and GND. Torch terminal input or threshold detector for NTC temperature sensing and current C3 TORCH/TEMP I/P scale back. D1 LED P High-side current source output for flash LED. Connect pin D1 to D3 externally. Configurable dual polarity power amplifier synchronization input. Internal pulldown D2 TX I resistor of 300 k Ω between TX and GND. D3 LED P High-side current source output for flash LED. Connect pin D1 to D3 externally. (1) A: Analog Pin, G: Ground Pin, P: Power Pin, I: Digital Input Pin Copyright © 2014–2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM3648 LM3648TT |
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