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LM2758 Datasheet(PDF) 2 Page - National Semiconductor (TI) |
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LM2758 Datasheet(HTML) 2 Page - National Semiconductor (TI) |
2 / 14 page Connection Diagram 12-Bump Thin Micro SMD 1.514mm x 1.996mm x 0.6mm NS Package Number TLA12 30045302 Pin Descriptions Pin Name Description C1 V IN Supply voltage connection. B2 CP OUT Charge pump regulated output. A 2.2 µF ceramic capacitor is required from CP OUT to GND. Connect flash LED anode to this pin. B1 C1+ Flying capacitor pins. A 1 µF ceramic capacitor should be connected from C1+ to C1− and from C2+ to C2−. D2 C1− C2 C2+ D1 C2− A2 SGND Analog and control ground for charge pump. This pin should be connected directly to a low impedance ground plane. C3 LED− Regulated current source output. Connect flash LED cathode to this pin. A1 EN1 The EN1 and EN2 pins are used to select the modes (Torch, Indictor, Flash), as well as to put the part into Shutdown mode. B3 EN2 A3 I SET LED current programming resistor pin. A resistor connected between this pin and GND are used to set Torch, Flash and Indicator currents. D3 PGND Power ground for the charge pump and the current source. This pin should be connected directly to a low impedance ground plane. Ordering Information Order Number Supplied as Tape and Reel (Units) LM2758TL 250 units, tape and reel LM2758TLX 3000 units, tape and reel www.national.com 2 |
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