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参数资料
| 型号： | MAX8672ETD+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/17页 |
| 文件大小： | 0K |
| 描述： | IC MANAGE NIMH BACKUP 14-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 备份管理 |
| 电池化学： | 镍金属氢化物 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 供应商设备封装： | 14-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
Complete Backup Management
IC for NiMH Batteries
Typical Operating Characteristics (continued)
(V IN = 3.6V, Circuit of Figure 6, T A = +25°C, unless otherwise noted.)
100
90
BST EFFICIENCY
vs. BST LOAD CURRENT
500
450
BATT INPUT CURRENT (WHILE BOOSTING)
vs. BATT VOLTAGE
3.2
BST OUTPUT VOLTAGE
vs. BST LOAD CURRENT
V IN = NOT CONNECTED
80
70
V BATT = 2.4V
V BATT = 1.2V
400
350
3.1
60
300
50
40
30
250
200
150
3.0
V BATT = 1.2V
V BATT = 2.4V
20
10
100
50
I LDO ,I BST = 0A,
V IN = NOT CONNECTED ,
2.9
0
V IN = NOT CONNECTED
0
BACKUP MODE
2.8
0.01
0.1
1
10
100
0.8
1.2
1.6
2.0
2.4
2.8
3.2
0
30
60
90
120
150
180
25
20
15
10
BST LOAD CURRENT (mA)
DR CURRENT (I DR )
vs. BATTERY VOLTAGE (V BATT )
V BATT(CHG) = 3.0V
BATT VOLTAGE (V)
BATT INPUT LEAKAGE CURRENT DURING UVLO
vs. TEMPERATURE
20.0
17.5
15.0
12.5
10.0
7.5
18.0
17.5
17.0
16.5
16.0
BST LOAD CURRENT (mA)
CT FREQUENCY vs. TEMPERATURE
5
0
V BATT(CHG) =
1.5V
R DR = 100Ω
5.0
2.5
0.0
V IN = V BST = V LDO = 0V
V BATT = 0.9V
R CHGV = 28.7k Ω
15.5
15.0
C CT = 0.047μF, X7R, 10%
0
0.5
1.0
15
2.0
2.5
3.0
-40
-15
10
35
60
85
-40
-15
10
35
60
85
BATTERY VOLTAGE (V)
MAX BATT CHARGE VOLTAGE
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
1.55
vs. TEMPERATURE (1-CELL NiMH)
V BST
LIGHT-LOAD SWITCHING WAVEFORMS
MAX8672 toc14
3.05V
1.53
1.51
1.49
1.47
50mV/div
V LX
1V/div
0V
1.45
R CHGV = 28.7kΩ
I LX
200mA/div
I BST = 2mA
0A
-40
-15
10
35
60
85
10 μ s/div
TEMPERATURE ( ° C)
_______________________________________________________________________________________
5
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| MAX8677AETG+ | 功能描述:电池管理 1.5A Dual USB/AC Adapter Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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