參數(shù)資料
型號(hào): MIC2778-1BM5
廠商: MICREL INC
元件分類: 電源管理
英文描述: Voltage Monitor with Adjustable Hysteresis Preliminary Information
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝: SOT-23, 5 PIN
文件頁(yè)數(shù): 3/8頁(yè)
文件大?。?/td> 65K
代理商: MIC2778-1BM5
October 1999
3
MIC2778
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
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
Electrical Characteristics
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
RST not asserted
1
2
μ
A
Input Leakage Current
5
pA
10
nA
V
REF
Reference Voltage
1.240
V
MIC2778-2
1.215
1.265
V
MIC2778-1
1.228
1.252
V
t
D
Propagation Delay
V
LTH
= V
REF(max)
+100mV to
V
REF(min)
– 100mV
5
μ
s
t
RESET
V
RST
Reset Pulse Width
140
420
ms
Voltage-Low Reset
RST asserted, I
SINK
= 1.6mA, V
DD
1.6V
RST asserted, I
SINK
= 100
μ
A, V
DD
1.2V,
0.3
V
0.4
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
HTH
V
BATT
V
LTH
0V
V
RSTH
V
RSTL
t
RST
t
RST
A
A
V
RST
Propagation delays not shown for clarity.
Note A.
The MIC2778 ignores very brief transients.
See “Applications Information” for details.
相關(guān)PDF資料
PDF描述
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