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ACT2801 の電気的特性と機能

ACT2801のメーカーはActive-Semiです、この部品の機能は「5V/1.5A Backup Battery Pack Manager」です。


製品の詳細 ( Datasheet PDF )

部品番号
ACT2801
部品説明
5V/1.5A Backup Battery Pack Manager
メーカ
Active-Semi
ロゴ

Active-Semi ロゴ 




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ACT2801 Datasheet, ACT2801 PDF,ピン配置, 機能
ACT2801
Rev 0, 21-Jan-14
5V/1.5A Backup Battery Pack Manager
FEATURES
 Dedicated Single Chip Solution for Mobile
Power With Minimal Component Count
 5V/1.5A Constant Output Current in Boost
Mode
 1.5A Switching Charger
 Programmable 4.1V to 4.35V Battery Voltage
 95% Boost Efficiency (Vbat=4.1V)
 Adaptive to 10mA-2400mA Input Sources
 Battery Disconnection at Output Short
 <10µA Low Battery Leakage Current at HZ
Mode During Storage
 Boost Auto Turn-off at No Load and Push
Button Turn-on
 Battery Over Current, Over Voltage, Over
Temperature and Short Circuit Protections
 Boost Auto Startup with Load Detection
 Up to 2.0A Input Current Limit with Prioritized
Power Path to Output
 5V+/-100mV Output Voltage in Boost Mode
 1.1MHz/0.55MHz Boost Switching Frequencies
 2.2uH SMD Inductor and Low Profile Ceramic
Capacitors
 4 LEDs Battery Level and Status Indication
 Battery Impedance Compensation
 Full Cycle of Battery Charge Management
Preconditioning, Fast Charge, Top Off and End
of Charge
 Charge Current Foldback at 110°C Die
Temperature
 IC Over Temperature Protection at 160°C
 QFN4x4-24 Package
APPLICATIONS
 Backup Battery Pack
 Power Bank
 Mobile Power
 Standalone Battery Charger with USB Output
GENERAL DESCRIPTION
ACT2801 is a space-saving and high-performance
low-profile single-chip solution for backup battery
pack and standalone battery charger. ACT2801
integrates all the functions that a backup battery
pack needs, including switching charger, boost
converter and LED indication.
ACT2801 operates at 2.2MHz/1.1MHz for switching
charger and 1.1MHz/0.55MHz for boost converter
allowing tiny external inductor and capacitors.
ACT2801 provides a direct power path from input to
output with programmable current limit while
providing power to switching charger. Output has
higher priority than battery charger if the
programmed input current limit is reached.
ACT2801 charges battery with full cycle of
preconditioning, fast charge with constant current
and constant voltage until end of charge. The
battery charger is thermally regulated at 110°C with
charge current foldback.
ACT2801 boost converter steps battery voltage up
to 5V. Boost converter features high efficiency,
constant current regulation, short circuit protection
and over voltage protection.
ACT2801 provides 3.5mA constant currents to drive
4 LEDs to indicate battery level and charge status.
Innovative PowerTM
ActiveSwitcherTM is a trademark of Active-Semi.
-1-
Boost CC/CV Curve
5.5
VBAT =3.7V
5.0
VBAT =3.2V
4.5
4.0
VBAT =4.1V
3.5
3.0
0 200 400 600 800 1000 1200 1400
Output Current (mA)
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.
Free Datasheet http://www.Datasheet4U.com

1 Page





ACT2801 pdf, ピン配列
PIN DESCRIPTIONS
ACT2801
Rev 0, 21-Jan-14
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
HZ
PB
AGND
nPG
ILIM
VIN
VOUT
SW
PGND
BAT
CSP
CSN
IOST
ICST
BTV
LED1
LED2
LED3
LED4
RIMC
BLVS
TH
EP
DESCRIPTION
Boost high-Z mode enable pin, internally pulled up by a 3Mresistor to battery. When
HZ pin is pulled ground, boost is enabled if VIN is not present.
Push button input, connect a push button from this pin to AGND, internally pulled up
by a 3Mresistor to battery. When this pin is pushed for 100ms, LED1-4 indicators
are enable for 5 seconds. PB starts up boost converter if HZ pin is grounded and VIN
is not present.
Logic ground.
Drive external P-FET to protect output short circuit and leakage during shutdown. nPG
pin is pulled up to VOUT internally. nPG pin is pulled low if VOUT is in the range.
Input current limit setting pin. Connect a resistor from this pin to AGND to set the input
current limit. The current setting ranges from 0.5A-2.0A.
USB or AC adaptor input. When VIN is valid, charge and power path is enabled.
Output pin. Bypass to PGND with a high quality low ESR and ESL ceramic capacitor
placed as close to the IC as possible.
Internal switch to output inductor terminal.
Power ground. PGND is connected to the source of low-side N-channel MOSFET and
the MOSFET’s gate driver.
Battery input. Connected to the battery pack positive terminal to provide power in High
-Z mode. Bypass to PGND with a high quality ceramic capacitor placed as close to the
IC as possible.
Positive terminal of charge current sense input. Kevin sense is required with 10nF
ceramic capacitor right across CSP and CSN pins.
Negative terminal of charge current sense input.
Output current setting. Connect a resistor from this pin to AGND to set output constant
current. The current setting ranges from 0.5A-1.5A.
Fast charge current setting pin. Connect a resistor from this pin to AGND to set the
charge current. The current setting ranges from 0.5A-1.5A.
Battery termination voltage setting. Connect a resistor from this pin to AGND to
program battery charge termination voltage.
Battery level indicator. An internal 3.5mA sink current limit is built in.
Battery level indicator. An internal 3.5mA sink current limit is built in.
Battery level indicator. An internal 3.5mA sink current limit is built in.
Battery level indicator. An internal 3.5mA sink current limit is built in.
Battery impendence compensation input. Connect to a resistor from this pin to APNG
to program the battery impedance.
Battery level voltage shift. Connect a resistor from this pin to AGND to shift the battery
LED indication thresholds.
Temperature sensing input. Connect to battery thermistor terminal. If no use, put 10K
pulled down resistor.
Exposed pad. Must be soldered to ground on the PCB.
Innovative PowerTM
-3-
Active-Semi ConfidentialDo Not Copy or Distribute
ActiveSwitcherTM is a trademark of Active-Semi.
www.active-semi.com
Copyright © 2013 Active-Semi, Inc.
Free Datasheet http://www.Datasheet4U.com


3Pages


ACT2801 電子部品, 半導体
ACT2801
Rev 0, 21-Jan-14
ELECTRICAL CHARACTERISTICS
(VIN = 5V, TA = 25°C, unless otherwise specified.)
PARAMETER
Fast Charge Current
Precondition Charge Current
Precondition Voltage Threshold
Precondition Voltage Threshold Hysteresis
Low VBAT Charge Current
EOC Current Threshold
Charge Restart Voltage Threshold
TH Upper Temperature Voltage Threshold
TH Lower Temperature Voltage Threshold
TH Hysteresis
TH Internal Pull-up Current
TEST CONDITIONS
VBAT=3.5V
2.4VVBAT2.8V, Percent of ICHRG
VBAT rising, Rbtv=0
VBAT=1V, RICST=39k
VBAT=4.2V, ratio to the fast
charge current
Cold detect NTC thermistor
Hot detect NTC thermistor
MIN
-10%
4
1.45
0.28
TYP
ICHRG
10
2.8
130
200
13
200
1.5
0.3
50
60
MAX
UNI
T
10% A
%
V
mV
mA
25 %
mV
1.55 V
0.32 V
mV
µA
Boost Mode
Input Voltage Operation Range
3.0 4.5 V
Switching Frequency
ACT2801QL-T
ACT2801QL-T0550
-15%
-15%
1.1 +15% MHz
0.55 +15% MHz
Input Voltage UVLO
VBAT rising
3.3 V
Input Voltage UVLO Hysteresis
VBAT falling
2.9 V
Output Voltage
Ta=25
4.97 5.05 5.10 V
Output Voltage Accuracy
All conditions
-3 VOUT 2 %
Output Voltage Transient Response
80mA-1A-80mA, 0.1A/us
4.8 5.25 V
Output Over Voltage Protection
VOUT rising
5.5 5.7 5.9 V
Output Over Voltage Protection Hysteresis
VOUT falling
300 mV
Output Current Regulation Range
Output Current Limit
Minimum On-Time
Rcs=50m,RIOST=37.5k—113k
Rcs=50m, RIOST=75k
0.5
-10%
1.5 A
1.0 +10% A
100 ns
Low Side Switch Peak Current Limit
VBAT=3.2V, VOUT=5V
3 5.0
A
Soft-Startup Time
400 µs
Under Voltage Protection (UVP Threshold)
VOUT falling
4.1 4.25 4.4 V
Innovative PowerTM
-6-
Active-Semi ConfidentialDo Not Copy or Distribute
ActiveSwitcherTM is a trademark of Active-Semi.
www.active-semi.com
Copyright © 2013 Active-Semi, Inc.
Free Datasheet http://www.Datasheet4U.com

6 Page

合計 : 21 ページ
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[ ACT2801 データシート.PDF ]

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部品番号部品説明メーカ
ACT2801

5V/1.5A Backup Battery Pack Manager

Active-Semi
Active-Semi
ACT2802

5V/2.5A Backup Battery Pack Manager

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ACT2802B

5V/2.5A Backup Battery Pack Manager

Active-Semi
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ACT2802C

5V/2.5A Backup Battery Pack Manager

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