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ACT2804 Datasheet Preview

ACT2804 Datasheet

Dual Cell Battery Power Manager

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ACT2804
5V/3.4A Dual Cell Battery Power Manager
 
FEATURES
Dedicated Single-chip Integrated Battery Power
Manager
Dual Cell Battery Charger with Cell Balancing
Management
Auto Detection support USB BC1.2, Chinese YD/T
1591-2009, Apple 2.4A, and Samsung Devices
Passed Apple MFi Test
4.5V-5.5V Input Voltage with 3.8A Input Current
Limit
2.4A+1.0A Dual Outputs with CC Regulation
5.07V+/-1% Output with Prioritized Power Path from
Input to Output
4.2V/4.35V +/- 0.5% Battery Charge Voltage Accu-
racy of Each Cell
Output Plug-in Detection Wakeup and No Load De-
tection Sleep Mode
Optimized Power Path and Battery Charge Control
<10uA Low Battery Drainage Current
I2C Port for Optimal System Performance and Sta-
tus Reporting
Configurable Charge, Discharge and HZ modes
>92% Charge and Discharge Efficiency at 3.4A Out-
put for Full Battery Range
4 Modes of LED Operation
Capability to Charge Wearable Devices
Weak Input Sources Accommodation
Safety:
Input Over-voltage Protection
Nearly Zero Power Short Circuit Protection
Output Over-voltage Protection
Battery Over-charge and Over-discharge
Protections
Charge/Discharge Thermal Regulation
TQFN5x5-40 Package
APPLICATIONS
Backup Battery Pack
Power Bank
Dual Cell Boost Battery Charger
Bluetooth Speaker
Standalone Battery Charger with USB Output
GENERAL DESCRIPTION
ACT2804 is a space-saving and dedicated single-chip
solution for dual-cell battery charge and discharge. It
takes 5V USB input source to charge a dual cell battery
with boost configuration in three phases: precondition-
ing, constant current, and constant voltage. Charge is
terminated when the current reaches 10% of the fast
charge rate. The battery charger is thermally regulated
at 110˚C with charge current foldback.
If input 5V is not present, ACT2804 discharge a dual cell
battery with buck configuration to provide 5.07V+/-1%
to output ports. There is a power path from input to out-
put. The cycle-by-cycle peak current mode control,
constant current regulation, short circuit protection and
over voltage protection maximize safe operation.
ACT2804 provides 4 LED drive pins for battery capacity
level and charge status indication to indicate 25%,
50%, 75%, and 75% above battery level with battery
impedance compensation. The LED indication patterns
are programmable.
ACT2804 is available in a thermally enhanced
5mmx5mm QFN55-40 package with exposed pad.
VIN
4.5V-5.5V
VOUT2
5.07V/2.4A
VOUT1
5.07V/1A
22uF
25mΩ
25mΩ
4.7uH
22uF
47nF
22uF
1uF
LED4 LED3 LED2 LED1 VREG
VIN BAT
CSN2
BATS
CSP
BATP
CSN1
VOUT
ACT2804
BATC
SW
PGND
CBD
HSB
BATN
RIMC ICS T TH PB AGND
22uF
22uF
25mΩ
510Ω
47Ω
510Ω
540k 8k 10k
Data Sheet Rev. 4.0, January 20, 2020 | Subject to change without notice
1 of 23
www.qorvo.com




qorvo

ACT2804 Datasheet Preview

ACT2804 Datasheet

Dual Cell Battery Power Manager

No Preview Available !

ACT2804
5V/3.4A Dual Cell Battery Power Manager
ORDERING INFORMATION
PART NUMBER
ACT2804QJ-T
ACT2804QJ-T0435
BATTERY CELL VOLTAGE
4.20V
4.35V
JUNCTION TEMPERATURE
-40°C to 150°C
-40°C to 150°C
PACKAGE
QFN55-40
QFN55-40
PINS
40
40
PIN CONFIGURATION
CSN2
CSN1
CSP
VOUT
VOUT
VIN
VIN
OVG AT E
OVSENS
SCL
ACT2804
PGND
TOP VIEW
LED3
LED2
LED1
PB
AGND
VREG
TH
ICST
BATN
CBD
Data Sheet Rev. 4.0, January 20, 2020 | Subject to change without notice
2 of 23
www.qorvo.com


Part Number ACT2804
Description Dual Cell Battery Power Manager
Maker qorvo
PDF Download

ACT2804 Datasheet PDF






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