参数资料
型号: MIC2778-2YM5 TR
厂商: Micrel Inc
文件页数: 3/6页
文件大小: 0K
描述: IC SUPERVISOR ADJ HYSTER SOT23-5
标准包装: 1
类型: 简单复位/加电复位
监视电压数目: 1
输出: 开路漏极或开路集电极
复位: 低有效
复位超时: 最小为 140 ms
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: SC-74A,SOT-753
供应商设备封装: SOT-23-5
包装: 标准包装
产品目录页面: 1112 (CN2011-ZH PDF)
其它名称: 576-2691-6
MIC2778
Absolute Maximum Ratings (Note 1)
Supply Voltage (V DD ) .......................................–0.3V to +7V
Input Voltages (V HI , V LO ) .................................–0.3V to +7V
RST Output Current (I RST ) ......................................... 20mA
Storage Temperature (T S ) ........................ –65°C to +150°C
ESD Rating, Note 3 ....................................................... 2kV
Electrical Characteristics
Micrel
Operating Ratings (Note 2)
Supply Voltage (V DD ) .................................. +1.5V to +5.5V
Input Voltages (V RST , V LTH , V HTH ) ................–0.3V to +6.0V
Ambient Temperature Range (T A ) .............. –40°C to +85°C
Package Thermal Resistance ................................ 256°C/W
1.5V ≤ V DD ≤ 5.5V; T A = +25°C, bold values indicate –40°C ≤ T A ≤ +85°C; unless noted
Symbol Parameter Condition
Min
Typ
Max
Units
I DD
I LTH, I HTH
Supply Current
Input Leakage Current
RST not asserted
1
5
2
10
μA
pA
nA
V REF
Reference Voltage
MIC2778-2
1.215
1.240
1.265
V
V
MIC2778-1
1.228
1.252
V
t D
t RESET
V RST
Propagation Delay
Reset Pulse Width
Voltage-Low Reset
V LTH = V REF(max) +100mV to
V REF(min) – 100mV
RST asserted, I SINK = 1.6mA, V DD ≥ 1.6V
RST asserted, I SINK = 100μA, V DD ≥ 1.2V,
140
5
420
0.3
0.4
μs
ms
V
V
Note 1.
Note 2.
Note 3.
Note 4.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
V DD operating range is 1.5V to 5.5V. Output is guaranteed to be held low down to V DD = 1.2V.
Timing Diagram
V BATT
V RST
V HTH
V LTH
0V
V RSTH
V RSTL
T RST
A
A
T RST
Propagation delays not shown for clarity.
Note A.
The MIC2778 ignores very brief transients.
See “Applications Information” for details.
January 2005
3
M9999-011405
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