参数资料
型号: MAX8677CETG+T
厂商: Maxim Integrated Products
文件页数: 7/21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
Typical Operating Characteristics (continued)
(T A = +25°C, unless otherwise noted.)
CHARGE PROFILE —1400mAh BATTERY
ADAPTER INPUT—1A CHARGE
CHARGE PROFILE —1400mAh BATTERY
USB INPUT—500mA CHARGE
6.0
5.5
V BAT
MAX8677C toc18
1.2
5.0
4.5
MAX8677C toc19
V BAT
0.50
0.45
5.0
1.0
4.0
0.40
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
I BAT
0.8
0.6
0.4
0.2
0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
I BAT
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
0
50
100
150
0
20
40
60
80
100 120 140
160
180
TIME (min)
DC CONNECT WITH USB CONNECTED
(R SYS = 25 Ω )
MAX8677C toc20
TIME (min)
DC CONNECT WITH NO USB
(R SYS = 25 Ω )
MAX8677C toc21
V SYS
I DC
3.6V
0A
4.35V
C DC CHARGING
3.68V
C SYS CHARGING
500mA
2V/div
500mA/div
V BAT
V SYS
I DC
3.6V
4.35V
3.6V
C DC C SYS CHARGING
CHARGING
1.2A
0A
500mA/div
I USB
500mA
0A
500mA/div
NEGATIVE BATTERY
I BAT
0A
BATTERY
NEGATIVE BATTERY CURRENT
FLOWS INTO THE BATTERY
(CHARGING)
500mA/div
I BAT
120mA
BATTERY
CHARGER
CURRENT FLOWS INTO
THE BATTERY (CHARGING)
-1A
500mA/div
-335mA CHARGER
SOFT-START
-330mA
SOFT-START
200 μ s/div
DC DISCONNECT WITH NO USB
(R SYS = 25 Ω )
MAX8677C toc22
400 μ s/div
USB CONNECT WITH NO DC
(R SYS = 20 Ω )
MAX8677C toc23
V SYS
4.35V
3.6V
V USB
0V
5V
C USB CHARGING
C SYS CHARGING
10V/div
1.2A
I USB
0A
500mA
500mA/div
I DC
0A
500mA/div
V SYS
3.6V
4.35V
4.3V
I BAT
-1A
0.2A
NEGATIVE BATTERY
CURRENT FLOWS INTO
THE BATTERY (CHARGING)
500mA/div
V UOK
V CHG
I BAT
3V
3V
155mA
BATTERY
0V
0V
-300mA
5V/div
5V/div
500mA/div
CHARGER SOFT-START
20 μ s/div
200 μ s/div
_______________________________________________________________________________________
7
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