MIC280 Datasheet, PDF (6/23 Pages) Micrel Semiconductor – Precision IttyBitty Thermal Supervisor

MIC280
Typical Characteristics
V_DD = 3.3V; T_A = 25°C, unless otherwise noted.
Accuracy vs.
T emperature, Internal S ens or
2.5
2
1.5
1
0.5
0
-0.5
-1
-1.5
-2
-2.5
-55 -35 -15 5 25 45 65 85 105 125
JUNCTION TEMPERATURE (°C)
R emote T emperature
Meas urement E rror
2
1.5
1
0.5
0
-0.5
-1
-1.5
-2
0 20 40 60 80 100
REMOTE DIODE TEMPERATURE (°C)
Quies cent Current vs .
Clock Frequency in
S hutdown Mode
20
/INT , T 1 open
DATA = HIGH
15
10
5
00
100 200 300 400
FREQUENCY (kHz)
R es pons e to Immers ion
in 125°C F luid B ath
140
120
100
80
60
40
20
0
0 1 2 3 4 5 6 7 8 9 10
TIME (sec)
Nois e Injec ted into the B as e of
R emote T rans is tor
7
6
25mV _{P -P}
5
4
3
2
10mV _{P -P}
1
3mV _{P -P}
0
1
10 100 1k 10k 100k 1M 10M100M
FREQUENCY (Hz)
Quies cent Current vs .
T emperature in S hutdown Mode
30
/INT , T 1 open
25 ^{C LK = DAT A = HIG H}
20
15
10
5
0
-55 -35 -15 5 25 45 65 85 105 125
TEMPERATURE (°C)
Meas urement E rror vs .
P C B L eakage to +3.3V /G ND
8
6
4
2
G ND
0
-2
3.3V
-4
-6
-8
1x10 ⁶
1x10 ⁷
1x10 ⁸
RESISTANCE FROM T1 (Ω)
1x10 ⁹
Nois e Injec ted into the
C ollec tor of R emote T rans is tor
1.6
1.4
100mV _P-P
1.2
1.0
0.8
0.6
0.4
50mV _{P -P}
0.2
0
25mV _{P -P}
1 10 100 1k 10k 100k 1M 10M100M
FREQUENCY (Hz)
MIC280
6
Micrel
S upply C urrent vs .
400 ^{T emperature for V DD = 3.3V}
350
300
250
200
150
100
50
0
-55 -35 -15 5 25 45 65 85 105 125
TEMPERATURE (°C)
Quies cent C urrent vs .
S upply V oltage in S hutdown Mode
10
9
/INT , T 1 open
CLK = DATA = HIGH
8
7
6
5
4
3
2
1
0
2.6 2.8 3.0 3.2 3.4 3.6
SUPPLY VOLTAGE (V)
R emote T emperature E rror vs .
C apac itanc e on T 1
5
0
-5
-10
-15
-20
CAPACITANCE (pF)
November 2004