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ACT2801_14 参数 Datasheet PDF下载

ACT2801_14图片预览
型号: ACT2801_14
PDF下载: 下载PDF文件 查看货源
内容描述: [5V/1.5A Backup Battery Pack Manager]
分类和应用: 电池
文件页数/大小: 23 页 / 614 K
品牌: ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
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ACT2801/ACT2801C  
Rev 2, 15-Apr-14  
PIN DESCRIPTIONS  
PIN  
NAME  
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.  
1
HZ  
Push button input, connect a push button from this pin to AGND, internally pulled up  
by a 3Mresistor to battery. PB starts up boost converter if HZ pin is grounded and  
VIN is not present. When this pin is pushed for 100ms, LED1-4 indicators are enable  
2
PB  
for 5 seconds. For ACT2801C, if this pin is pushed for 3s, Flashlight is enabled.  
3
4
AGND  
nPG  
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.  
5
6
ILIM  
VIN  
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.  
7, 8  
9, 10  
11  
VOUT  
SW  
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.  
PGND  
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.  
12  
BAT  
Positive terminal of charge current sense input. Kevin sense is required with 10nF  
ceramic capacitor right across CSP and CSN pins.  
13  
14  
15  
CSP  
CSN  
IOST  
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.  
16  
17  
ICST  
BTV  
Battery termination voltage setting. Connect a resistor from this pin to AGND to  
program battery charge termination voltage.  
18  
19  
20  
21  
LED1  
LED2  
LED3  
LED4  
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.  
22  
23  
RIMC  
BLVS  
Battery level voltage shift. Connect a resistor from this pin to AGND to shift the battery  
LED indication thresholds.  
TH: ACT2801  
Temperature sensing input. Connect to battery thermistor terminal. If no use, put 10K  
pulled down resistor.  
24  
TH/FLD  
EP  
FLD: ACT2801C  
Open-drain Flashlight driver. A internal switch can handle up to 50mA.  
25  
Exposed pad. Must be soldered to ground on the PCB.  
Innovative PowerTM  
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www.active-semi.com  
Copyright © 2014 Active-Semi, Inc.