參數(shù)資料
型號(hào)： HCPL-7560-500
英文描述： Optically Isolated Sigma-Delta Modulator
中文描述： 光隔離Σ-Δ調(diào)制器
文件頁(yè)數(shù)： 17/18頁(yè)
文件大?。?/td> 153K
代理商： HCPL-7560-500
Table 3. Isotek (Isabellenhütte) Four-Terminal Shunt Summary.
In some applications, however,
supply currents flowing
through the power-supply
return path may cause offset
or noise problems. In this
case, better performance may
be obtained by connecting V
IN+
and V
IN-
directly across the
shunt resistor with two
conductors, and connecting
GND1 to the shunt resistor
with a third conductor for the
power-supply return path, as
shown in Figure 19. When
connected this way, both input
Figure 19. Schematic for Three Conductor Shunt Connection.
Shunt Resistor
Part Number
Shunt Resistance
m
50
Tol.
Maximum RMS
Current
Motor Power Range
120 V
ac
-440 V
ac
%
A
hp
kW
PBV-R050-0.5
0.5
3
0.8 - 3
0.6 - 2
PBV-R020-0.5
20
0.5
7
2 - 7
0.6 - 2
PBV-R010-0.5
10
0.5
14
4 - 14
3 - 10
PBV-R005-0.5
5
0.5
25 [28]
7 - 25 [8 - 28]
5 - 19 [6 - 21]
PBV-R002-0.5
2
0.5
39 [71]
11 - 39 [19 - 71]
8 - 29 [14 - 53]
pins should be bypassed. To
minimize electromagnetic
interference of the sense
signal, all of the conductors
(whether two or three are
used) connecting the isolated
modulator to the sense resistor
should be either twisted pair
wire or closely spaced traces
on a PC board.
The 39
resistor in series with
the input lead (R2) forms a
lowpass anti-aliasing filter
with the 0.01
μ
F input bypass
capacitor (C2) with a 400 kHz
bandwidth. The resistor
performs another important
function as well; it dampens
any ringing which might be
present in the circuit formed
by the shunt, the input bypass
capacitor, and the inductance
of wires or traces connecting
the two. Undamped ringing of
the input circuit near the
input sampling frequency can
alias into the baseband
producing what might appear
to be noise at the output of
the device.
+
-
MOTOR
HV-
HV+
R
SENSE
FLOATING
POSITIVE
SUPPLY
GATE DRIVE
CIRCUIT
V
DD1
V
IN+
V
IN-
GND1
V
DD2
MCLK
MDAT
GND2
HCPL-7560
C1
0.1 μF
C2a
0.01 μF
R2a 39
R1
D1
5.1 V
C2b
0.01 μF
R2b 39
Note: Values in brackets are with a heatsink for the shunt.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HCPL-7560-500E 功能描述:隔離放大器 Isolated Modulator RoHS:否 制造商:Texas Instruments 輸入補(bǔ)償電壓:1.5 mV 共模抑制比（最小值）:95 dB 帶寬:60 KHz 工作電源電壓:3.3 V 電源電流:8 mA 工作溫度范圍:- 40 C to + 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOP-8 封裝:Tube
HCPL-7560-560E 功能描述:隔離放大器 Isolated Modulator RoHS:否 制造商:Texas Instruments 輸入補(bǔ)償電壓:1.5 mV 共模抑制比（最小值）:95 dB 帶寬:60 KHz 工作電源電壓:3.3 V 電源電流:8 mA 工作溫度范圍:- 40 C to + 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOP-8 封裝:Tube
HCPL-7601 功能描述:高速光耦合器 10 Mb/s 3750Vrms RoHS:否 制造商:Avago Technologies 電流傳遞比: 最大波特率: 最大正向二極管電壓:1.75 V 最大反向二極管電壓:5 V 最大功率耗散:40 mW 最大工作溫度:+125 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-5 封裝:Tube
HCPL-7601#300 功能描述:高速光耦合器 10 Mb/s 3750Vrms RoHS:否 制造商:Avago Technologies 電流傳遞比: 最大波特率: 最大正向二極管電壓:1.75 V 最大反向二極管電壓:5 V 最大功率耗散:40 mW 最大工作溫度:+125 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-5 封裝:Tube
HCPL-7601#500 功能描述:高速光耦合器 10 Mb/s 3750Vrms RoHS:否 制造商:Avago Technologies 電流傳遞比: 最大波特率: 最大正向二極管電壓:1.75 V 最大反向二極管電壓:5 V 最大功率耗散:40 mW 最大工作溫度:+125 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-5 封裝:Tube
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