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參數(shù)資料
| 型號： | AAT3697IWP-4.2-T1 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | 2A Lithium-Ion/Polymer Battery Charger |
| 中文描述： | 第2A鋰離子電池充電器 |
| 文件頁數(shù)： | 15/22頁 |
| 文件大?。?/td> | 1269K |
| 代理商： | AAT3697IWP-4.2-T1 |
AAT3697
2A Lithium-Ion/Polymer Battery Charger
3697.2007.02.1.1
15
Data Timing
The system microcontroller should assert an active
low data request pulse for minimum duration of
200ns; this is specified by T
LO(DATA)
. Upon sensing
the rising edge of the end of the data request pulse,
the AAT3697 status data control will reply the data
word back to the system microcontroller after a
delay specified by the data report time specification
T
DATA(RPT)
. The period of the following group of
data pulses will be specified by T
DATA
.
Digital Charge Status Reporting
The AAT3697 has a comprehensive digital data
reporting system by use of the DATA pin feature.
This function can provide detailed information
regarding the status of the charging system. The
DATA pin is a bi-directional port which will read
back a series of data pulses when the system
microcontroller asserts a request pulse. This sin-
gle strobe request protocol will invoke one of 12
possible return pulse counts that the system micro-
controller can look up based on the serial report
data listed in Table 4.
The DATA pin function logic is active low and
should normally be pulled high to V
ADP
. This data
line can also be pulled high to the same level as the
high state for the logic I/O port on the system
microcontroller. In order for the DATA pin control
circuit to generate clean, sharp edges for the data
output, and to maintain the integrity of the data tim-
ing for the system, the pull-up resistor on the data
line should be low enough in value so that the
DATA signal returns to the high state without delay.
If the pull-up resistor is too high, the strobe pulse
from the system microcontroller could exceed the
maximum pulse time and the DATA output control
could issue false status reports. A 1.5k
Ω
resistor is
recommended when pulling the DATA pin high to
5.0V on the V
ADP
input. If the data line is pulled
high to a voltage level less than 5.0V, the pull-up
resistor can be calculated based on a recommend-
ed minimum pull-up current of 3mA. Use the fol-
lowing formula:
Eq. 6:
V
PULL-UP
3mA
R
PULL-UP
≤
Figure 3: Data Pin Application Circuit.
AAT3697
Status
Control
1.8V to 5.0V
DATA Pin
R
PULL_UP
μ
P GPIO
Port
GPIO
IN
IN
OUT
OUT
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AAT3698IWO-4.2-1-T1 | 功能描述:電池管理 1.6A Linear Li-Ion Battery Charger RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| AAT3698IWO-4.2-2-T1 | 功能描述:電池管理 1.6A Linear Li-Ion Battery Charger RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| AAT3783AIRN-4.2-DB1 | 制造商:SKYWORKS SOLUTIONS 功能描述:AAT3783 Series 1 A Linear Li-Ion/Polymer Battery Charger Evaluation Board |
| AAT3783AIRN-4.2-T1 | 制造商:Skyworks Solutions Inc 功能描述:IC CHARGER LI-ION/POLY 制造商:SKYWORKS SOLUTIONS 功能描述:AAT3783 Series 7.5 V 1-A Linear Li-Ion/Polymer Battery Charger - TDFN33-16 制造商:Skyworks Solutions Inc 功能描述:POWER MANAGEMENT IC |
| AAT3783IRN-4.2-T1 | 制造商:SKYWORKS SOLUTIONS INC 功能描述:1A LINEAR LI-ION BATTERY CHARGER TR |
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