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PDF AUR9807 Data sheet ( Hoja de datos )
| Número de pieza | AUR9807 | |
| Descripción | Single-cell Li-Ion Charger IC | |
| Fabricantes | BCD | |
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NOT RECOMMENDED FOR NEW DESIGN
Data Sheet
Single-cell Li-Ion Charger IC with System Power Management AUR9807
General Description
The AUR9807 is a single-cell Li-ion charger IC with
system power management feature. It charges the
battery and power the system simultaneously. The
maximum charging current (up to 1.5A) is set by
external resistor for fast charging. The output
voltage for the system is regulated to a nominal
value (three different versions available: 4.4V, 5V or
6V); the actual value of the output voltage depends
on the input voltage from the adapter, the charging
current and the system loading. With the decrease of
the input voltage or the increase of the system
loading current, the output voltage drops. When the
output voltage drops to a predetermined value
(VAPM-REG), the Active Power Management function
is activated and tries to maintain the output voltage
at VAPM-REG; the AUR9807 will suffice the system
loading with first priority and reduce the charging
current temporarily, i.e. under heavy load condition,
the AUR9807 charges the battery with the remaining
available current to keep the output voltage at VAPM.
In this manner, the charge and discharge cycle of the
battery can be reduced.
It is possible that the AUR9807 fails to maintain the
output voltage at VAPM-REG; for example, when the
system loading current exceeds the capability of the
current-limiting AC adapter. In this scenario, the
output voltage drops to the battery voltage, and the
system is allowed to draw current from the battery.
The AUR9807 is available in QFN-4.5×3.5-20
package.
Features
• QFN Package
• Active Power Management (APM) for
Simultaneously Powering the System and
Charging the Battery
• Total Current Supported Up to 2 Amperes
(System Loading Having Higher Priority on the
Budget)
• Automatic Power Source Selection (AC Adapter
or Battery)
• 40mΩ Power Path for the Battery to Supply the
System Power Efficiently
• Junction Temperature Detection and Thermal
Regulation During Charging Process
• External LED Indicating Charger and Power
Good Status as Well as Fault Condition
• Thermal, Short-Circuit, and Reverse Current
Protection
• Short-Circuit Protection in the Low Power
Consumption Sleep Mode
• SYSOFF Function to Cut Off the Path Between
the System and the Battery
• Built-in Over Voltage Protection up to 18V
Applications
• Battery-Powered Devices or Equipment
• Mobile Phones, Digital Cameras and MP3
Players
• Radios, Other Hand-Held Games and Instruments
• Solar Power System
QFN-4.5×3.5-20
Figure 1. Package Type of AUR9807
AUR9807
Document number: DS37580 Rev. 1 - 3
1 of 23
www.diodes.com
October 2014
© Diodes Incorporated
1 page  
NOT RECOMMENDED FOR NEW DESIGN
Data Sheet
Single-cell Li-Ion Charger IC with System Power Management AUR9807
Ordering Information
AUR9807
Circuit Type
Output Voltage
VF: 4.4V, CV Mode
DF: 4.4V, Done
VI: 5V, CV Mode
DI: 5V, Done
VS: 6V, CV Mode
DS: 6V, Done
D: QFN-4.5x3.5-20
G: Green
CV mode: After charge done, charger will stay in constant
voltage mode until time out.
Done: After charge done, charger will shut down until the
battery voltage drops below the battery recharge threshold.
Package
QFN-4.5x3.5-20
Temperature
Range
-40 to 85C
Output Voltage Part Number
4.4V, CV Mode
4.4V, Done
5V, CV Mode
5V, Done
6V, CV Mode
6V, Done
AUR9807VFGD
AUR9807DFGD
AUR9807VIGD
AUR9807DIGD
AUR9807VSGD
AUR9807DSGD
Marking ID
A9807VFG
A9807DFG
A9807VIG
A9807DIG
A9807VSG
A9807DSG
Packing
Type
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "G" in the part number, are RoHS compliant and
green.
AUR9807
Document number: DS37580 Rev. 1 - 3
5 of 23
www.diodes.com
October 2014
© Diodes Incorporated
5 Page 
NOT RECOMMENDED FOR NEW DESIGN
Data Sheet
Single-cell Li-Ion Charger IC with System Power Management AUR9807
Electrical Characteristics (Continued)
TA=25oC, VIN is within the recommended range, unless otherwise specified.
SHORT CIRCUIT PROTECTION
Short-circuit Recovery
Between BAT to OUT
IOSH1
IN to OUT Short-circuit
Protection
Output
Short-circuit
Detection Threshold,
Power-on
Output
Short-circuit
Detection Threshold,
Supplement mode
(VBAT – VOUT)>VOUT(SC2)
Indicates Short-circuit
Deglitch
Time,
Supplement Mode Short
Circuit
Maximum Short-current
for VBAT>VOUT
RSHAC
VOUT(SC1)
VOUT(SC2)
tDGL(SC2)
ISHORT(2)
Pull-up source from
BAT to OUT for
short-circuit recovery
VOUT<VBAT–200mV
VOUT<1V
VIN>VUVLO and
VIN>VBAT + VIN(DT)
VBAT>2.5V
VBAT>2.5V
0.9
160
10 mA
500
1 1.1
Ω
V
200 240 mV
512
9
μs
A
(2) For short current>ISHORT , short-protection may not work due to avalanche breakdown phenomenon.
Typical Performance Characteristics
Figure 4. Output Voltage vs. Output Current
Figure 5. Output Voltage vs. Charge Current
AUR9807
Document number: DS37580 Rev. 1 - 3
11 of 23
www.diodes.com
October 2014
© Diodes Incorporated
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet AUR9807.PDF ] | |
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