National Semiconductor LM3647 Operation & User’s Manual

Operation & User’s Manual for National Semiconductor LM3647 Battery Charger, Network Card (9 pages)

Specifications:

571/571712-lm3647.pdf file (30 Aug 2023)
  • Manufacturer: National Semiconductor
  • Category of Device: Battery Charger, Network Card
  • Document: LM3647, File Type: PDF Operation & User’s Manual
  • Updated: 30-08-2023
  • Count of Pages: 9
Download LM3647 Manual (9 pages)

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Data: UPD 30th August 2023

National Semiconductor LM3647 Battery Charger, Network Card PDF Operation & User’s Manual (Updated: Wednesday 30th of August 2023 05:49:17 PM)

Rating: 4.9 (rated by 11 users)

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Text Version of National Semiconductor LM3647 Battery Charger, Network Card Manual (Summary of Contents)

(Ocr-Read of National Semiconductor LM3647 Document (Main Content), UPD: 30 August 2023)
  • 2, Charge Current The charge settings for LM3647 current control are shown below. If the external LM317 is used to control the charge current then the jumpers J9, J10 and J13 have no relevance, when using LM317 regulation mode, this jumper must be placed in either position. If external (LM3…

  • 1, LM3647 Reference Design User’s Manual GENERAL DESCRIPTION The LM3647 is a charge controller for Nickel-Cadmium (Ni-Cd), Nickel-Metal Hydride (Ni-MH) or Lithium-Ion (Li-Ion) batteries. The device uses a pulsed-current charging or a constant-current charging technique. The device can also be…

  • 3, National Semiconductor LM3647 and the charge process will restart. This occurs only with batteries that are already fully charged, and consequently should not be recharged. If the battery voltage has not reached the Li-Ion battery qualification voltage (CEL-pin > 1.2V) within 1 minute of the Qualification Phase, the b…

  • 6, 2.0 APPLICATION INFORMATION 2.1 Typical Example 2.1.1 Ni-Cd/Ni-MH Set To: SEL1 SEL2 SEL3 V CC No Discharge before Charge Ni-MH Fast-PWM (LM3647 has current feedback) Hi-Z Discharge before Charge NA NA GND Maintenance Charge Only Ni-Cd Slow-PWM (external current control) AN101315-8 AN-1164 www.…

  • 5, • For Li-Ion: The voltage divider network for Li-Ion is very important. If the battery voltage is scaled too low, the battery will not attain its full capacity when charged, and if scaled too high, the battery may become damaged. Never exceed the recommended maximum voltage or current fo…

  • 7, 2.1.2 Li-Ion Set To: SEL1 SEL2 SEL3 V CC After charging, maintenance charging until battery removal. NA 4.2V/Cell Hi-Z After charging, maintenance charging until battery removal. If battery voltage drops below a predefined value, the charger restarts the charge-process. Li-Ion NA GND After cha…

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  • Transistors Publication date: October 2008 SJC00414AED 1 This product complies with the RoHS Directive (EU 2002/95/EC).2SD1478ASilicon NPN epitaxial planar type darlingtonFor low frequency amplification Features Forward current transfer ratio hFE is designed high, which is appropriate to t ...

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  • Table of ContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2What’s in the Box? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2About the Audiophile USB . . . . . . . . . . . . . . . . . . . . . . . . . ...

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