|
|
PDF HCPL-786J Data sheet ( Hoja de datos )
| Número de pieza | HCPL-786J | |
| Descripción | Optically Isolated Sigma-Delta Modulator | |
| Fabricantes | Agilent | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de HCPL-786J (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
|
No Preview Available !
Agilent HCPL-7860/HCPL-786J
Optically Isolated
Sigma-Delta (Σ−∆) Modulator
Data Sheet
Description
The HCPL-7860/HCPL-786J
Optically Isolated Modulator
and HCPL-0872 Digital
Interface IC or digital filter
together form an isolated
programmable two-chip
analog-to-digital converter. The
isolated modulator allows
direct measurement of motor
phase currents in power
inverters.
1
In operation, the HCPL-7860/
HCPL-786J Isolated Modulator
(optocoupler with 3750 VRMS
dielectric withstand voltage
rating) converts a low-
bandwidth analog input into a
high-speed one-bit data stream
by means of a Sigma-Delta (Σ−
∆) over-sampling modulator.
This modulation provides for
high noise margins and
excellent immunity against
isolation-mode transients. The
modulator data and on-chip
sampling clock are encoded
and transmitted across the
isolation boundary where they
are recovered and decoded
into separate high-speed clock
and data channels.
8
Features
• 12-bit Linearity
• 200 ns Conversion Time (Pre-
Trigger Mode 2 with HCPL-0872)
• 12-bit Effective Resolution with 5
µs Signal Delay (14-bit with 102
µs) (with HCPL-0872)
• Fast 3 µs Over-Range Detection
(with HCPL-0872)
• ± 200 mV Input Range with Single
5 V Supply
• 1% Internal Reference Voltage
Matching
• Offset Calibration (with HCPL-
0872)
• -40°C to +85°C Operating
Temperature Range
• 15 kV/µs Isolation Transient
Immunity
• Safety Approval: UL 1577, CSA
and IEC/EN/DIN EN 60747-5-2
Input
Current
2 SIGMA
7
DELTA
MOD./
DECODE
3 ENCODE
6
45
HCPL-7860
HCPL-0872
or
Digital Filter
MCU Applications
or
DSP
• Motor Phase and Rail Current
Sensing
• Data Acquisition Systems
• Industrial Process Control
• Inverter Current Sensing
• General Purpose Current Sensing
and Monitoring
A 0.1 µF bypass capacitor must be connected between pins VDD and Ground
CAUTION: It is advised that normal static precautions be taken in handling and assembly
of this component to prevent damage and/or degradation, which may be induced by ESD.
SPI and QSPI are trademarks of Motorola Corp.
Microwire is a trademark of National Semiconductor Inc.
1 page  
Solder Reflow Temperature Profile
300
PREHEATING RATE 3˚C + 1˚C/-0.5˚C/SEC.
REFLOW HEATING RATE 2.5˚C ± 0.5˚C/SEC.
PEAK
TEMP.
245˚C
200
160˚C
150˚C
140˚C
100
2.5˚C ± 0.5˚C/SEC.
3˚C + 1˚C/-0.5˚C
PREHEATING TIME
150˚C, 90 + 30 SEC.
30
SEC.
30
SEC.
PEAK
TEMP.
240˚C
SOLDERING
TIME
200˚C
PEAK
TEMP.
230˚C
50 SEC.
ROOM
TEMPERATURE
0
0
TIGHT
TYPICAL
LOOSE
50 100 150 200 250
Recommended Lead Free IR Profile
Tp
TL
Tsmax
Tsmin
260 +0/-5˚C
217˚C
RAMP-UP
3˚C/SEC. MAX.
150 - 200˚C
ts
PREHEAT
60 to 180 SEC.
tp
tL
TIME (SECONDS)
TIME WITHIN 5˚C of ACTUAL
PEAK TEMPERATURE
20-40 SEC.
RAMP-DOWN
6˚C/SEC. MAX.
60 to 150 SEC.
25
t 25˚C to PEAK
TIME (SECONDS)
NOTES:
THE TIME FROM 25˚C to PEAK TEMPERATURE = 8 MINUTES MAX.
Tsmax = 200˚C, Tsmin = 150˚C
Regulatory Information
The HCPL-7860/HCPL-786J has been approved by the following organizations:
IEC/EN/DIN EN 60747-5-2
Approved under:
IEC 60747-5-2:1997 + A1:2002
EN 60747-5-2:2001 + A1:2002
DIN EN 60747-5-2 (VDE 0884 Teil 2):2003-01.
UL
Approval under UL 1577,
component recognition program
up to VISO = 3750 VRMS.
File E55361.
CSA
Approval under CSA Component
Acceptance Notice #5, File CA
88324.
5
5 Page 
14
13
12
11
10
9
8
1234
CONVERSION MODE #
5
80
75
70
65
60
55
50
45
1234
CONVERSION MODE #
5
200
180
160
140
120
100
80
60
40
20
0
1
PRE-TRIGGER
MODE 0
PRE-TRIGGER
MODE 1
PRE-TRIGGER
MODE 2
23 4
CONVERSION MODE #
5
Figure 10. SNR vs. Conversion Mode.
Figure 11. Effective Resolution vs. Conversion Figure 12. Conversion Time vs. Conversion
Mode.
Mode.
100
90
80
70
60
50
40
30
20
10
0
123 45
CONVERSION MODE #
Figure 13. Signal Delay vs. Conversion Mode.
VIN+(200 mV/DIV.)
OVR1 (200 mV/DIV.)
THR1
(2 V/DIV.)
2 µs/DIV.
Figure 14. Over-Range and Threshold Detect
Times.
100
90
80
70
60
50
40
30
20
10
0
123 45
CONVERSION MODE #
Figure 15. Signal Bandwidth vs. Conversion
Mode.
11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet HCPL-786J.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| HCPL-7860 | Isolated 15-bit A/D Converter | .gif){kind=logo} Agilent(Hewlett-Packard) |
| HCPL-7860 | Isolated 15-bit A/D Converter |  Hewlett-Packard |
| HCPL-7860 | Optically Isolated Sigma-Delta (S-D) Modulator |  Avago |
| HCPL-786J | Optically Isolated Sigma-Delta Modulator | Agilent |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |