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PDF AUR9801D Data sheet ( Hoja de datos )
| Número de pieza | AUR9801D | |
| Descripción | LI-ION/LI POLYMER BATTERY CHARGER | |
| Fabricantes | Diodes | |
| Logotipo |  |
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AUR9801D
LI-ION/LI POLYMER BATTERY CHARGER
Description
Pin Assignments
The AUR9801D 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.
(Top View)
Pin 1 Mark
The AUR9801D 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 0.6% 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 AUR9801D reduces charge current for thermal fold-
back to ensure product safe operation. The charger automatically re-
charges the battery when the battery voltage drops below a recharge
threshold. The chip includes a safety timer for setting the fast charge
time limit in case of charging a dead battery.
Additional features include preconditioning of an over-discharged
battery and charging the battery in a safe temperature range with an
NTC thermistor interface. The thermally enhanced DFN package is
offered for space limited handheld applications.
VIN 1
FAULT 2
STATUS 3
TIME 4
GND 5
10 VBAT
9 TEMP
8 IREF
7 V2P8
6 EN
WDFN-3×3-10
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
The AUR9801D is available in WDFN-3X3-10 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
Charger Voltage Accuracy: 0.6%
Programmable Current Limit up to 1A
Sleep Mode for Power Saving
Charge Current Thermal Fold-back
NTC Thermistor Interface for Battery Temperature Monitor
Stand-Alone or Integrated Charger
Ambient Temperature Range: -40°C to +85°C
Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AUR9801D
Document number: DS39016 Rev. 1 - 2
1 of 14
www.diodes.com
July 2016
© Diodes Incorporated
1 page  
AUR9801D
Electrical Characteristics (VIN=5V and TA=+25°C for the typical values. The maximum and minimum values are over -40°C to
+85°C ambient temperature with a supply voltage in the range of 4.6V to 5.5V, unless otherwise noted.)
Symbol
Power-on Reset
—
—
Standby Current
ISTANDBY
Parameter
VIN Rising Voltage
VIN Falling Voltage
VBAT Pin Sink Current
IIN VIN Pin Supply Current
VIN-VBAT Offset Voltage
VOS Offset Voltage
Voltage Regulation
VBAT
Output Voltage
— Dropout Voltage
Charge Current
ICHG Constant Charge Current
ITRICKLE
Trickle Charge Current
IMIN End-of-Charge Threshold
V2P8 Pin Output
V2P8 V2P8 Pin Output Voltage
Recharge Threshold
VRECHG
Recharge Threshold
VRECHG-HYS
Recharge Threshold Hysteresis
Trickle Charge Threshold
VMIN Trickle Threshold Voltage
VMINHYS
Trickle Threshold Hysteresis
Test Condition
—
—
VIN floating or EN=LOW
VBAT floating and EN pulled low
VBAT and EN floating
VBAT=4.2V,
IBAT= 20mA,
use STATUS pin
Tested at 50mA load, 5V input, and
+25°C
VBAT=4.0V,
charge current = 0.35A
RIREF=100kΩ,
VBAT=3.0V to 4.0V
RIREF=100kΩ, VBAT=2.5V
RIREF=100kΩ
Load current less than 1mA
—
—
—
—
Min Typ Max Unit
3.2
2.25
3.6
2.5
3.9
2.7
V
V
— — 3.3 μA
— — 150 μA
——
1 mA
45 80 100 mV
4.175 4.2 4.225
V
— 175 — mV
760 800 840 mA
— 120 — mA
70 80 90 mA
2.8 2.9 3.0
V
3.97
—
4.05
50
4.13
—
V
mV
2.7 2.8 2.9
V
50 100 150 mV
AUR9801D
Document number: DS39016 Rev. 1 - 2
5 of 14
www.diodes.com
July 2016
© Diodes Incorporated
5 Page 
Flow Chart
Power on & EN
AUR9801D
Battery Exist?
Yes
No
Pre-charge, timer
start
VBAT >2.8V for 16
clocks ?
No
Yes
No
1/8 Timeout ?
Yes
Fault
Fast charge
VBAT > 4.2V ?
Yes
No
Constant voltage
Charge mode
ICHG < IMIN ?
Yes
No
No
Yes
Timeout ?
No
Yes
Timeout ?
Timeout?
No
Yes
Yes
Standby mode,
Charger off
VBAT < 4.0V ?
No
AUR9801D
Document number: DS39016 Rev. 1 - 2
11 of 14
www.diodes.com
July 2016
© Diodes Incorporated
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet AUR9801D.PDF ] | |
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