参数资料
型号: MAX6374KA/V+T
厂商: Maxim Integrated Products
文件页数: 4/10页
文件大小: 0K
描述: IC WATCHDOG PIN-SELECT SOT23-8
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 监视器电路
监视电压数目: 1
输出: 推挽式,图腾柱
复位: 低有效
复位超时: 可调节/可选择
电压 - 阀值: 可调节/可选择
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SOT-23-8
供应商设备封装: SOT-23-8
包装: 带卷 (TR)
MAX6369–MAX6374
Pin-Selectable Watchdog Timers
ELECTRICAL CHARACTERISTICS (continued)
(V CC = +2.5V to +5.5V, SET_ = V CC or GND, T A = -40°C to +125°C, unless otherwise noted. Typical values are at T A = +25°C and
V CC = +3V.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V SET2 = 0V, V SET1 = 0V, V SET0 = 0V
V SET2 = 0V, V SET1 = 0V, SET0 = V CC
V SET2 = 0V, SET1 = V CC , V SET0 = 0V
3
3
1
9
9
3
ms
s
Watchdog Timeout
Period
Watchdog Input Pulse Width
(Note 2)
t WD
t WDI
V SET2 = 0V, SET1 = V CC , SET0 = V CC
SET2 = V CC , V SET1 = 0V, V SET0 = 0V
SET2 = V CC , V SET1 = 0V, SET0 = V CC
SET2 = V CC , SET1 = V CC , V SET0 = 0V
SET2 = V CC , SET1 = V CC , SET0 = V CC
After WDO deasserted
Watchdog Disabled
30 90
1
3
10
30
10
30
100
μs
s
ns
Watchdog Output Pulse Width
Internal Setup Time
(Note 4)
t WDO
t SETUP
MAX6369/MAX6371/MAX6373
MAX6370/MAX6372/MAX6374
After WDO deasserted
100
1
100
300
3
300
ms
ms
ms
Note 1: Production tested at T A = +25°C. Guaranteed by design over temperature limits.
Note 2: Guaranteed by design.
Note 3: In this setting the watchdog timer is inactive and startup delay ends when WDI sees its first level transition. See the Selecting
Device Timing section for more information.
Note 4: After power-up, or a setting change, there is an internal setup time during which WDI is ignored.
Typical Operating Characteristics
(Circuit of Figure 1, T A = +25°C, unless otherwise noted .)
14
12
SUPPLY CURRENT
vs. TEMPERATURE
V CC = +5.5V
1.003
1.002
1.001
WATCHDOG TIMEOUT PERIOD
vs. TEMPERATURE
10
1.000
8
6
4
V CC = +2.5 V
0.999
0.998
0.997
-40
-15
10
35
60
85
-40
-15
10
35
60
85
4
TEMPERATURE ( ° C)
TEMPERATURE (°C)
Maxim Integrated
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