Diodes AUR9801C Manuel d'utilisateur

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Data Sheet
Li-ion/Li Polymer Battery Charger AUR9801C
Aug. 2012 Rev. 1. 0 BCD Semiconductor Manufacturing Limited
1
General Description
The AUR9801C is a highly-integrated battery charger
for single-cell Li-ion or Li-polymer batteries capable
of operating with an input voltage reached 2.5V. It is
a complete charger device designed to work with an
USB port or 5V output AC adapter.
The AUR9801C operates with CC (constant current)
mode and CV (constant voltage) mode profiles. A
low-current preconditioning charge mode is also
provided as a trickle charging operation. The charge
current is programmable up to 1A with an external
resistor or a logic input. The charge voltage is 1%
accurate over the full application range.
When operating with a current-limited adapter, the
charger minimizes the thermal dissipation with
pulsed operations to prevent overheat conditions that
is commonly occurred with conventional linear
chargers. The AUR9801C reduces charge current for
thermal fold-back to ensure product safe operation.
The charger automatically re-charges the battery
when the battery voltage drops blow a recharge
threshold. The chip includes a safety timer for setting
the fast charge time limit in case of charging a dead
battery.
The AUR9801C is available in standard
WDFN-3×3-10 package.
Features
  Complete Charger for Single-cell Li-ion
Batteries
  Charges from either AC Adapter or USB Port
  Integrated Power Pass Device with Current
Sensing
  No External Blocking Diode Required
  Pre-charge Condition with Safety Timing
  1% Charger Voltage Accuracy
  Programmable Current Limit up to 1A
  Sleep Mode for Power Saving
  Charge Current Thermal Fold-back
  Stand-alone or Integrated Charger
  Ambient Temperature Range: -40°C to 85°C
  Thermally-enhanced WDFN-3×3-10 Package
  Pb-free Plus Anneal Available (RoHS
Compliant)
Applications
PDAs, Cell Phones and Smart Phones
Digital Camera, MP3 and Handheld Gamming
Portable Instruments Including Medical
Handhelds
• Self-charging Battery Packs
Stand-alone Chargers or USB Port Chargers
Figure 1. Package Type of AUR9801C
WDFN-3
×3-10
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Résumé du contenu

Page 1

Data Sheet Li-ion/Li Polymer Battery Charger AUR9801C Aug. 201

Page 2 - Pin Functions

Data Sheet Li-ion/Li Polymer Battery Charger AUR9801C Aug. 2012 Rev

Page 3 - Ordering Information

Data Sheet Li-ion/Li Polymer Battery Charger AUR9801C Aug. 2012 Rev

Page 4

Data Sheet Li-ion/Li Polymer Battery Charger AUR9801C Aug. 2012 Rev

Page 5 - Electrical Characteristics

Data Sheet Li-ion/Li Polymer Battery Charger AUR9801C Aug. 2012 Rev

Page 6

IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the

Page 7 - Input Voltage(V)

Data Sheet Li-ion/Li Polymer Battery Charger AUR9801C Aug. 2012 Rev

Page 8

Data Sheet Li-ion/Li Polymer Battery Charger AUR9801C Aug. 2012 Rev

Page 9

Data Sheet Li-ion/Li Polymer Battery Charger AUR9801C Aug. 2012 Rev

Page 10

Data Sheet Li-ion/Li Polymer Battery Charger AUR9801C Aug. 2012 Rev

Page 11 - Flow chart

Data Sheet Li-ion/Li Polymer Battery Charger AUR9801C Aug. 2012 Rev

Page 12 - AUR9801C

Data Sheet Li-ion/Li Polymer Battery Charger AUR9801C Aug. 2012 Rev

Page 13

Data Sheet Li-ion/Li Polymer Battery Charger AUR9801C Aug. 2012 Rev

Page 14

Data Sheet Li-ion/Li Polymer Battery Charger AUR9801C Aug. 2012 Rev

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