參數(shù)資料
型號(hào)： HV-2405E
廠商： Intersil Corporation
英文描述： World-WideSingle Chip Power Supply
中文描述： 世界WideSingle電源芯片
文件頁(yè)數(shù)： 9/16頁(yè)
文件大小： 699K
代理商： HV-2405E
4-
9
and tolerance of both the Zener diode and the band-gap of
the HV-2405E (see Figure 16). The maximum output voltage
is limited by Z
B2
to
≈
34V
DC
. Z
B2
protects the output by
ensuring that an overvoltage condition does not exist. Note:
the output voltage can also be set by placing a resistor
(1/4W) between pin 5 and pin 6. If a resistor is placed
between pin 5 and pin 6 an additional 1V per k
(
±
10%) is
added to the 5V output.
Optimizing Design
(Imbedded Supply)
Selecting the storage capacitor C2
For applications requiring less than 30mA, the value of C2
can be reduced for a more cost effective solution. The mini-
mum C2 capacitor value vs. output current is presented in
Table 2. Advantages of making C2 as small as possible are:
Reduced total size and cost of the circuit.
Reduced start up time.
Consideration should be given to the tolerance and tempera-
ture coefficient of the C2 value selected. (Note: momentary
peak output current demands should be considered in the
sizing of C2. Increasing the output capacitor C4 is another
way to supply momentary peak current demands.)
Determining the Power Dissipation in R1
Circuit efficiency is limited by the power dissipation in R1.
The power dissipation for 240Vrms and 120Vrms is shown in
Figure 11.
For input voltages other than 240Vrms or 120Vrms Equation
10 can be used to determine the power dissipation in R1.
FIGURE 11. POWER DISSIPATION IN R1 vs LOAD CURRENT
Operation information
Effects of Temperature on Output Current
Figure 12 and Figure 13 show the effects of temperature on
the output current for the imbedded supply (R2 = 2.7
).
Fig-
ure 12 illustrates V
OUT
= 5V operation and Figure 13 illus-
trates V
OUT
= 24V operation. The imbedded supply (R2 =
2.7
)
delivers 30mA output current across the specified tem-
perature range of -40
o
C to +85
o
C for all output voltages
between 5V and 24V. The effect of decreasing the value of
C2 (330
μ
F) reduces the maximum output current (i.e. moves
curve to the left). For all C2 values selected from Table 2
(assuming tolerance and temperature coefficient are taken
into account) the circuit meets the expected output current
across the above mentioned temperature range.
FIGURE 12. OUTPUT CURRENT vs TEMPERATURE (R1 = 150
,
R2 = 2.7
, C2 = 330
μ
F)
TABLE 2. IMBEDDED SUPPLY
R1 - 150
R2 = 2.7
V
IN
FREQ.
C2
I
OUT
30mA
264Vrms
50Hz
330
μ
F
220
μ
F
100
μ
F
50
μ
F
330
μ
F
220
μ
F
100
μ
F
50
μ
F
330
μ
F
220
μ
F
100
μ
F
50
μ
F
330
μ
F
220
μ
F
100
μ
F
50
μ
F
24mA
14mA
8mA
264Vrms
60Hz
30mA
27mA
16mA
9mA
132Vrms
50Hz
30mA
30mA
16mA
8mA
132Vrms
60Hz
30mA
30mA
16mA
9mA
Pd = 2.8
(EQ. 10)
√
R1 Vrms (I
OUT
)
3
LOAD CURRENT (mA)
P
0
1
2
3
4
0
10
20
30
120Vrms
240Vrms
IMBEDDED SUPPLY (R1 = 150
)
5
4
3
2
1
0
0
10
20
OUTPUT CURRENT (mA)
30
40
50
60
70
80
O
6
+85
o
C
-40
o
C
+25
o
C
IMBEDDED SUPPLY
HV-2405E
相關(guān)PDF資料
PDF描述
HV100 3-Pin Hotswap, Inrush Current Limiter Controllers
HV100DB1 3-Pin Hotswap Controller
HV100K5 3-Pin Hotswap, Inrush Current Limiter Controllers
HV100K6 3-Pin Hotswap, Inrush Current Limiter Controllers
HV100X 3-Pin Hotswap, Inrush Current Limiter Controllers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HV250 制造商:TESTEC 功能描述:PROBE HIGH VOLTAGE 2.5KV 制造商:TESTEC 功能描述:PROBE, HIGH VOLTAGE, 2.5KV 制造商:TESTEC 功能描述:PROBE, HIGH VOLTAGE, 2.5KV; Test Probe Type:Various; Test Probe Functions:Voltage; For Use With:Oscilloscopes; SVHC:No SVHC (19-Dec-2012); Attenuation:x100; Bandwidth:300MHz; External Length / Height:1.2m; Input Impedance:100Mohm;
HV250A 功能描述:氣體放電管 - GDT /氣體等離子體避雷器 2500V RoHS:否 制造商:Bourns 峰值脈沖電流: 直流擊穿電壓（標(biāo)稱）:4500 V 電極數(shù)量:2 系列:SA2 端接類型:Axial 故障安全保護(hù) Y/N: 封裝:Reel
HV250C 功能描述:氣體放電管 - GDT /氣體等離子體避雷器 2500V RoHS:否 制造商:Bourns 峰值脈沖電流: 直流擊穿電壓（標(biāo)稱）:4500 V 電極數(shù)量:2 系列:SA2 端接類型:Axial 故障安全保護(hù) Y/N: 封裝:Reel
HV2512AA1008F100S2 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:High Voltage Chip Resistors
HV2512AA1008F200S2 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:High Voltage Chip Resistors
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*