参数资料
型号: MAX8672ETD+T
厂商: Maxim Integrated Products
文件页数: 6/17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.)
V BST
50mV/div
V LX
HEAVY-LOAD SWITCHING WAVEFORMS
MAX8672 toc15
3.05V
I BST
BST LOAD TRANSIENT
MAX8672 toc16
1V/div
20mA/div
0A
0V
0V
V BST
I LX
20mV/div
200mA/div
I BST = 20mA
0A
AC-COUPLED
V BATT = 2.4V
3.2
10 μ s/div
BST OUTPUT VOLTAGE
vs. LDO LOAD CURRENT
V IN = NOT CONNECTED
I LDO
200 μ s/div
LDO LOAD TRANSIENT
MAX8672 toc18
3.1
3.0
2.9
V BATT = 1.2V
V BATT = 2.4V
20mA/div
V LDO
10mV/div
AC-COUPLED
0A
0V
2.8
0
30
60
90
120
150
180
200 μ s/div
V BATT = 2.4V
LDO LOAD CURRENT (mA)
BATTERY RIPPLE (V BATT_P-P )
BST RESPONSE TO LDO LOAD TRANSIENT
MAX8672 toc19
300
250
vs. TEMPERATURE
I LDO
20mA/div
0A
200
C BATT = 10 μ F
150
V BST
20mV/div
AC-COUPLED
0V
100
50
C BATT = 47 μ F
200 μ s/div
V BATT = 2.4V
0
-20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45
TEMPERATURE ( ° C)
6
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