參數(shù)資料
型號: PTC-01
英文描述: DC-DC flyback power supply, IRIS4007, 48VIN, 5VOUT, 5A IOUT
中文描述: PTC的01程序員Melexis的PTC器件
文件頁數(shù): 3/9頁
文件大?。?/td> 79K
代理商: PTC-01
PTC-01
Programmer for Melexis PTC Devices
PTC-01 Programmer Rev 2.0 15/Nov/2001 Page 3
Voltage Measurement Circuit (ADC)
Parameter
Min
Typ
Max
Units
Number of ADC channels
-
4*
-
channels
Input voltage range (AIN1, AIN2, AIN4)
0.25
-
20
volts
Input current range (AIN3)
0
-
300
mA
Digital Resolution of ADC
-
15
-
bits
Voltmeter Resolution
-
305
-
uV/LSB
Currentmeter Resolution
-
4.5
-
uA/LSB
* Single channel A/D converter multiplexed to 4 channels
Explanation of Analog Measurement Channels
The internal voltmeter of the PTC-01 is a 16-bit A/D converter with a range of 25mV -20V. The resolution is
therefore approximately 0.3mV per step.
The ADC is multiplexed to 4 analog input channels (AIN1 – AIN4) Their function is described below:
ADC MUX Channel Function PTC Pin
AD1 Voltage measurement of DA1 Vout
AD2 Voltage measurement of DA2 Vdd
AD3 Current measurement of DA2 Vdd
AD4 Voltage measurement output Vout
All 4 channels are over-voltage and short-circuit protected
Typical Performance Characteristics
Parameter
Voltmeter Absolute Accuracy
Min
Typ
Max
Units
-5
5
mV
Ammeter Absolute Accuracy
-100
-
100
uA
Programmable Power Supply
Absolute Accuracy
Operating Temperature
-50
50
mV
20
25
30
°C
Note:
Melexis reserves the right to make changes without further notice to any products herein to improve reliabil-
ity, function or design. Melexis does not assume any liability arising from the use of any product or applica-
tion of any product or circuit described herein.
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