参数资料
型号: MAX1978
厂商: Maxim Integrated Products, Inc.
英文描述: Integrated Temperature Controllers for Peltier Modules
中文描述: Peltier模块集成温度控制器
文件页数: 3/20页
文件大小: 620K
代理商: MAX1978
M
Integrated Temperature
Controllers for Peltier Modules
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= PV
DD
1 = PV
DD
2 =
SHDN
= 5V, FREQ = GND, CTLI = FB+ = FB- = MAXV = MAXIP = MAXIN = REF,
T
A
= 0
°
C to +85
°
C
,
unless otherwise noted. Typical values at T
A
= +25
°
C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
0.02
1
30
15
2
165
2.6
2.5
500
1000
MAX
10
UNITS
V
LX
= 0, T
A
= +25
°
C
V
LX
= 0, T
A
= +85
°
C
V
DD
= 5V
V
DD
= 3.3V
SHDN
= GND, V
DD
= 5V (Note 3)
T
S H U TD OWN
Hysteresis = 15
°
C
V
DD
rising
V
UVLO
V
DD
falling
FREQ = GND
f
SW-INT
FREQ=V
DD
I
OS1
, I
OS2
,
I
CS
I
SHDN
,
I
FREQ
PFET Leakage
I
LEAK(P)
μA
50
30
3
No-Load Supply Current
I
DD(NO
LOAD)
I
DD-SD
mA
Shutdown Supply Current
Thermal Shutdown
mA
°
C
2.4
2.25
450
800
2.8
2.75
650
1200
UVLO Threshold
V
Switching Frequency Internal
Oscillator
kHz
OS1, OS2, CS Input Current
0 or V
DD
-100
+100
μA
SHDN
, FREQ Input Current
0 or V
DD
-5
+5
μA
SHDN
, FREQ Input Low Voltage
V
IL
V
DD
= 3V to 5.5V
0.25
×
V
DD
V
SHDN
, FREQ Input High Voltage
V
IH
V
DD
= 3V to 5.5V
0.75
×
V
DD
V
V
MAXV
= V
REF
0.67,
V
OS1
to V
OS2
= ±4V, V
DD
= 5V
-1
+1
MAXV Threshold Accuracy
V
MAXV
= V
REF
0.33,
V
OS1
to V
OS2
= ±2V, V
DD
= 3V
-2
+2
%
MAXV, MAXIP, MAXIN
Input Bias Current
CTLI Gain
CTLI Input Resistance
Error Amp Transconductance
ITEC Accuracy
I
MAXV-BIAS
,
I
MAXI_-BIAS
A
CTLI
R
CTLI
g
m
V
MAXV
= V
MAXI_
= 0.1V or 1.5V
-0.1
+0.1
μA
V
CTLI
= 0.5V to 2.5V (Note 4)
1M
terminated at REF
9.5
0.5
50
-10
10
1.0
100
10.5
2.0
175
+10
V/V
M
μS
%
V
OS1
to V
CS
= +100mV or -100mV
V
OS1
to V
CS
= +100mV or -100mV,
I
ITEC
= ±10μA
ITEC Load Regulation
V
ITEC
-0.1
+0.1
%
Instrumentation Amp Input Bias
Current
I
DIF-BIAS
-10
0
+10
nA
Instrumentation Amp Offset
Voltage
V
DIF-OS
V
DD
= 3V to 5.5V
-200
+20
+200
μV
Instrumentation Amp Offset-
Voltage Drift with Temperature
V
DD
= 3V to 5.5V
0.1
μV/
°
C
Instrumentation Amp Preset
Gain
A
DIF
R
LOAD
= 10k
to REF
45
50
55
V/V
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