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参数资料
| 型号： | MAX8677CETG+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/21页 |
| 文件大小： | 0K |
| 描述： | IC USB/AC ADP CHARGER 24-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 电源电压： | 4.1 V ~ 6.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
1.5A Dual-Input USB/AC Adapter Charger
and Smart Power Selector
R PU
560k Ω
R PU
3X 560k Ω
TO VL
PREQUAL
1
PREQ
MAX8677C
FLT
24
FAULT
OUTPUT
ADAPTER
C DC
4.7 μ F
2
3
DC
DC
UOK
DOK
23
22
USB PWR
OK
DC PWR
OK
OFF
CHARGE ON
4
5
CEN
PEN1
SYS
SYS
21
20
C SYS
10 μ F
560k Ω
TO SYSTEM
LOAD
TO VL
500mA
100mA
6
PEN2
CHG
19
CHARGE
INDICATOR
R PSET
7
8
PSET
VL
BAT
BAT
18
17
C BAT
4.7 μ F
1-CELL
Li+
C L
0.1 μ F
C T
0.068 μ F
9
10
GND
CT
USB
USB
16
15
C USB
4.7 μ F
USB
VBUS
GND
11
ISET
TSET
14
R ISET
12
THM
USUS
13
TO VL: I TERM = 15%
OPEN: I TERM = 10%
10k Ω
NTC
10k Ω
+25 ° C
GND: I TERM = 5%
USB SUSPEND
Figure 2. Typical Application Circuit Using Separate DC and USB Connectors
for two-input or single-input operation. Figure 2 is the
typical application circuit using separate DC and USB
connectors. Figure 3 is the typical application circuit
using a Mini 5-style connector or other DC/USB com-
mon connector.
In addition to charging the battery, the MAX8677C also
supplies power to the system through the SYS output.
The charging current is also provided from SYS so that
the set input current limit controls the total SYS current,
which is the sum of the system load current and the
battery-charging current. SYS is powered from either
the DC input pin or the USB input pin. If both the DC
and USB are connected, DC takes precedence.
______________________________________________________________________________________
11
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