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LM3644TTYFFR Folha de dados(PDF) 3 Page - Texas Instruments |
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LM3644TTYFFR Folha de dados(HTML) 3 Page - Texas Instruments |
3 / 41 page Top View A1 A2 B1 B2 B3 Top View A3 C2 C1 C3 D2 D3 D1 Pin A1 LM3644, LM3644TT www.ti.com SNVSA52D – AUGUST 2014 – REVISED SEPTEMBER 2015 6 Pin Configuration and Functions YFF Package 12-Pin DSBGA Pin Functions PIN TYPE DESCRIPTION NUMBER NAME A1 GND Ground Ground Input voltage connection. Connect IN to the input supply and bypass to GND with a 10-µF or A2 IN Power larger ceramic capacitor. A3 SDA I/O Serial data input/output in the I2C Mode on LM3644. B1 SW Power Drain Connection for Internal NMOS and Synchronous PMOS Switches. Active high hardware flash enable. Drive STROBE high to turn on Flash pulse. Internal pulldown B2 STROBE I/O resistor of 300 k Ω between STROBE and GND. B3 SCL I/O Serial clock input for LM3644. C1 OUT Power Step-up DC-DC converter output. Connect a 10-µF ceramic capacitor between this pin and GND. Active high enable pin. High = Standby, Low = Shutdown/Reset. Internal pulldown resistor of 300 C2 HWEN I/O k Ω between HWEN and GND. TORCH/T C3 I/O Torch terminal input or threshold detector for NTC temperature sensing and current scale back. EMP D1 LED2 Power High-side current source output for flash LED. Configurable dual polarity power amplifier synchronization input. Internal pulldown resistor of 300 D2 TX I/O k Ω between TX and GND. D3 LED1 Power High-side current source output for flash LED. Copyright © 2014–2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM3644 LM3644TT |
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Descrição semelhante - LM3644TTYFFR |
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