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參數(shù)資料
| 型號： | MAX1978-MAX1979 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Integrated Temperature Controllers for Peltier Modules |
| 中文描述： | 集成溫度控制器佩爾蒂埃模塊 |
| 文件頁數(shù)： | 9/20頁 |
| 文件大小： | 620K |
| 代理商： | MAX1978-MAX1979 |
M
Integrated Temperature
Controllers for Peltier Modules
_______________________________________________________________________________________
9
Pin Description
THERMAL STABILITY,
ROOM TEMPERATURE
M
4s/div
TEMPERATURE
0.001
°
C/div
I
TEC
= +25
°
C
T
A
= +25
°
C
THERMAL STABILITY,
HEATING MODE
M
4s/div
TEMPERATURE
0.001
°
C/div
T
TEC
= +25
°
C
T
A
= +5
°
C
TEMPERATURE ERROR
vs. AMBIENT TEMPERATURE
M
AMBIENT TEMPERATURE (
°
C)
T
°
C
30
40
10
20
0
-10
-0.02
-0.01
0
0.01
0.02
0.03
-0.03
-20
50
Typical Operating Characteristics (continued)
(V
DD
= 5V, V
= 1V, V
FREQ
= GND, RTEC = 1
, circuit of Figure 1, T
A
= +25
°
C, unless otherwise noted.)
PIN
NAME
FUNCTION
1
OS2
Output Sense 2. OS2 senses one side of the differential TEC voltage. OS2 is a sense point, not a power
output.
2, 8, 29,
35
N.C.
Not Internally Connected
3, 5
PGND2
Power Ground 2. Internal synchronous rectifier ground connections. Connect all PGND pins together at
power ground plane.
4, 6, 9
LX2
Inductor 2 Connection. Connect all LX2 pins together. Connect LX2 to LX1 when using the MAX1979.
7, 10
PV
DD
2
Power 2 Inputs. Must be same voltage as V
DD
. Connect all PV
DD
2 inputs together at the V
DD
power plane.
Bypass to PGND2 with a 10μF ceramic capacitor.
11
SHDN
Shutdown Control Input. Active-low shutdown control.
12
OT
Under-Temperature Alarm. Open-drain output pulls low if temperature feedback falls 20mV
(typically +1.5
°
C) below the set-point voltage.
13
UT
Under-Temperature Alarm. Open-drain output pulls low if temperature feedback falls 20mV
(typically +1.5
°
C) below the set-point voltage.
14
15
INTOUT
INT-
Integrator Amp Output. Normally connected to CTLI.
Integrator Amp Inverting Input. Normally connected to DIFOUT through thermal-compensation network.
16, 25,
26, 42, 43
GND
Analog Ground. Connect all GND pins to analog ground plane.
17
18
19
20
21
22
DIFOUT
FB-
FB+
BFB-
BFB+
AIN+
Chopper-Stabilized Instrumentation Amp Output. Differential gain is 50
(FB+ - FB-).
Chopper-Stabilized Instrumentation Amp Inverting Input. Connect to thermistor bridge.
Chopper-Stabilized Instrumentation Amp Noninverting Input. Connect to thermistor bridge.
Chopper-Stabilized Buffered FB- Output. Used to monitor thermistor bridge voltage.
Chopper-Stabilized Buffered FB+ Output. Used to monitor thermistor bridge voltage.
Undedicated Chopper-Stabilized Amplifier Noninverting Input
相關PDF資料 |
PDF描述 |
|---|---|
| MAX1978ETM | Integrated Temperature Controllers for Peltier Modules |
| MAX1979ETM | Integrated Temperature Controllers for Peltier Modules |
| MAX197ACWI | Multi-Range (【10V, 【5V, +10V, +5V), Single +5V, 12-Bit DAS with 8+4 Bus Interface |
| MAX197AMYI | Circular Connector; No. of Contacts:18; Series:MS27505; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:15; Circular Contact Gender:Socket; Circular Shell Style:Box Mount Receptacle RoHS Compliant: No |
| MAX197AEAI | Multi-Range (【10V, 【5V, +10V, +5V), Single +5V, 12-Bit DAS with 8+4 Bus Interface |
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