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參數(shù)資料
| 型號(hào)： | MAX1979ETM |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Integrated Temperature Controllers for Peltier Modules |
| 中文描述： | DIGITAL TEMP SENSOR-SERIAL, 1Cel, SQUARE, SURFACE MOUNT |
| 封裝： | EXPOSED PAD, TQFP-48 |
| 文件頁數(shù)： | 10/20頁 |
| 文件大小： | 620K |
| 代理商： | MAX1979ETM |
M
Integrated Temperature
Controllers for Peltier Modules
10
______________________________________________________________________________________
Pin Description (continued)
PIN
23
24
NAME
AIN-
AOUT
FUNCTION
Undedicated Chopper-Stabilized Amplifier Inverting Input
Undedicated Chopper-Stabilized Amplifier Output
27, 30
PV
DD
1
Power 1 Inputs. Must be same voltage as V
DD
. Connect all PV
DD
1 inputs together at the V
DD
power plane.
Bypass to PGND1 with a 10μF ceramic capacitor.
28, 31, 33
LX1
Inductor 1 Connection. Connect all LX1 pins together. Connect LX1 to LX2 when using the MAX1979.
32, 34
PGND1
Power Ground 1. Internal synchronous-rectifier ground connections. Connect all PGND pins together at
power ground plane.
36
FREQ
Switching-Frequency Select. Low = 500kHz, high = 1MHz.
37
ITEC
TEC Current Monitor Output. The ITEC output voltage is a function of the voltage across the TEC current-
sense resistor. V
ITEC
= 1.50V + (V
OS1
- V
CS
)
8.
Current-Control Loop Compensation. For most designs, connect a 10nF capacitor from COMP to GND.
Maximum Positive TEC Current. Connect MAXIP to REF to set default positive current limit +150mV / R
SENSE
.
Maximum Negative TEC Current. Connect MAXIN to REF to set default negative current limit
-150mV / R
SENSE
. Connect MAXIN to GND when using the MAX1979.
38
39
COMP
MAXIP
40
MAXIN
41
MAXV
Maximum Bipolar TEC Voltage. Connect an external resistive divider from REF to GND to set the maximum
voltage across the TEC. The maximum TEC voltage is 4
V
MAXV
.
Analog Supply Voltage Input. Bypass to GND with a 10μF ceramic capacitor.
TEC Current-Control Input. Sets differential current into the TEC. Center point is 1.50V (no TEC current).
Connect to INTOUT when using the thermal control loop. I
TEC
= (V
OS1
- V
CS
) / R
SENSE
= (V
CTLI
- 1.50) / (10
R
SENSE
). When (V
CLTI
- V
REF
) > 0, V
OS2
> V
OS1
> V
CS
.
1.5V Reference Voltage Output. Bypass REF to GND with a 1μF ceramic capacitor.
44
V
DD
45
CTLI
46
REF
47
CS
Current-Sense Input. The current through the TEC is monitored between CS and OS1. The maximum TEC
current is given by 150mV / R
SENSE
and is bipolar for the MAX1978. The MAX1979 TEC current is unipolar.
48
OS1
Output Sense 1. OS1 senses one side of the differential TEC voltage. OS1 is a sense point, not a power
output.
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| MAX1979ETM+ | 功能描述:電壓模式 PWM 控制器 Integrated Temp Ctlr for Peltier Modules RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX1979ETM+T | 功能描述:電壓模式 PWM 控制器 Integrated Temp Ctlr for Peltier Modules RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX1979ETM-T | 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX197ACAI | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX197ACAI+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 100ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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