Power Manager. ACT2804 Datasheet

ACT2804 Manager. Datasheet pdf. Equivalent

ACT2804 Datasheet
Recommendation ACT2804 Datasheet
Part ACT2804
Description Dual Cell Battery Power Manager
Feature ACT2804; ACT2804 5V/3.4A Dual Cell Battery Power Manager   FEATURES • Dedicated Single-chip Integrated Batte.
Manufacture qorvo
Datasheet
Download ACT2804 Datasheet




qorvo ACT2804
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
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



qorvo ACT2804
ACT2804
5V/3.4A Dual Cell Battery Power Manager
PIN DESCRIPTIONS
PIN
1
2
3
4,5
6,7
8
9
10
11
12
13
14,15
16,17
18
19
20
21
22
23
24
25
NAME
DESCRIPTION
CSN2 Output current sense negative input for channel 2.
CSN1 Output current sense negative input for channel 1.
CSP Output current sense positive input.
VOUT Power Output Pin.
VIN USB or AC Adapter input.
OVGATE Output to drive optional external NMOS protect IC from over voltage.
OVSENS USB or AC Adapter input sense.
SCL I2C clock input.
SDA
PGND
HSB
I2C data input.
Power ground. Directly connect this pin to IC thermal PAD and connect 10uF or 22uF high quality
capacitors from BAT to PGND on the same layer with IC.
High side bias pin. Connect a 47nF ceramic capacitor from HSB to SW.
SW
BAT
BATS
BATP
Internal switch connected to a terminal of the output inductor.
BAT connection. Connect it to battery current sense positive terminal. Bypass BAT pin to PGND pin
with high quality ceramic capacitors on the same layer with IC.
Battery charge current sense input. Connect to charge sense resistor positive terminal with
Kevin sense.
Connect to charge sense resistor negative terminal and battery positive terminal.
BATC Battery central point connection. Connect to dual battery cell common terminal.
CBD Cell balancing discharge. Connect to a discharge resistor from this pin to battery common terminal.
BATN
ICST
TH
VREG
Battery negative terminal.
Fast charge current setting pin. Connect a resistor from this pin to AGND to set the charging
current. The current setting ranges from 0.5A-1.8A. The voltage at this pin reflects the charge
current and discharge current in charge mode and discharge mode, respectively.
Temperature sensing input. Connect to a battery thermistor terminal.
+5V Bias output. Connect a 1.0uF to this pin. This pin supplies up to 50mA output current. The bias
turns on in charge mode and discharge mode. Internal register bit can shut down the bias. Bias
turns off in HZ mode.
Data Sheet Rev. 4.0, January 20, 2020 | Subject to change without notice
3 of 23
www.qorvo.com







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