V7806-1000 [CUI]
DC switching regulator, non-isolated; DC开关稳压器，非隔离
| 型号： | V7806-1000 |
| 厂家： | 
CUI INC |
| 描述： | DC switching regulator, non-isolated |
| 文件： | 总4页 (文件大小：232K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
page 1 of 4
date 04/2008
PART NUMBER: V78XX-1000 series
DESCRIPTION: DC switching regulator, non-isolated
features
description
·efficiency up to 95%
·no need for heatsinks
·wide input range
·short circuit protection
·thermal shutdown
·low ripple and noise
·pin compatible to LM78XX
series
The V78XX series of switching regulators are
designed to replace 78XX linear regulators,
with the objective of drop-in replacement
without the need for a heatsink, because the
V78XX series features high efficiency under
all line conditions. Built-in short-circuit and
over-temperature protections ensure very
rugged operations. Additionally, low ripple
and noise performance make the parts useful
in a wide range of applications.
·non-isolated
model
input voltage
range
output
voltage
3.3 Vdc
5 Vdc
output
current
1000 mA
1000 mA
1000 mA
1000 mA
1000 mA
efficiency
Vin_max
number
Vin_min
90%
V7803-1000
V7805-1000
V7806-1000
V7809-1000
V7812-1000
4.75~28 Vdc
6.5~32 Vdc
8~32 Vdc
83%
88%
90%
92%
94%
93%
6.5 Vdc
9 Vdc
94%
11~32 Vdc
15~32 Vdc
95%
12 Vdc
95%
OUTPUT SPECIFICATIONS
item
conditions
at 100% load
min.
typ.
±2
max.
±3
unit
%
output voltage accuracy
line regulation
Vin = min. to max. at full load
10% to 100% full load
±0.2
±0.4
20
±0.4
±0.6
35
%
load regulation
%
output ripple
20 MHz bandwidth, output w/ 10μF cap
mVp-p
short circuit protection
short circuit input power
output current limit
switching frequency
dynamic load stability
quiescent current
thermal shutdown
temperature coefficient
max load capacitance
continuous, auto recovery upon removal of short
load impedance is≤ 0.1Ω
subject to over-temp shutdown
0.5
1.2
2000
450
±100
7
W
mA
KHz
mV
mA
°C
fixed switching frequency topology
100%<->10% load
280
330
Vin_min to Vin_max at no load
internal IC junction
5
150
-40°C ~ 85°C ambient
0.02
%/°C
μF
2000
GENERAL SPECIFICATIONS
item
conditions
min.
-40
typ.
max.
85
unit
°C
operating temperature range
operating case temperature
storage temperature range
cooling
see derating curve
-40
100
125
°C
-55
°C
free air convection
solderability
1.5 mm from case for 10 seconds
relative humidity, non-condensing
plastic (UL94-V0)
300
95
°C
%
storage humidity range
case material
10
case thermal impedance
MTBF
50
°C/W
hours
grams
at 25°C per MIL-HDBK-217F
2,000,000
package weight
3.7
th
20050 SW 112 Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
page 2 of 4
date 04/2008
PART NUMBER: V78XX-1000 series
DESCRIPTION: DC switching regulator, non-isolated
MECHANICAL DRAWINGS
11.50 0.453
8.90 0.350
Recommended PCB Layout Pattern
1.00 +0.15/-0
[0.040 +0.006/-0]
17.50 0.689
1
2
3
0.50 0.020
(TYP)
Top View
2.54
[0.100]
4.10
(3 PLCS)
0.50 0.020
(3 PLCS)
1
2
3
PIN
ASSIGNMENTS
+Vin
1
2
3
GND
+Vout
2.54 0.100
(2 plcs)
2.15 0.085
(3 PLCS)
0.30 0.012
(3 PLCS)
1
2
3
units: mm(inches)
pin tolerances: 0.10( 0.004)
general tolerances: 0.25( 0.01)
5.08 0.200
3.21 0.126
THERMAL DERATING CURVE
Temperature Derating Graph
Operating Temp.(
C )
th
20050 SW 112 Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
page 3 of 4
date 04/2008
PART NUMBER: V78XX-1000 series
DESCRIPTION: DC switching regulator, non-isolated
TYPICAL APPLICATION CIRCUIT
Vout
Vin
1
3
V78XX-1000
2
C2
100μF/25V
C1
22μF/50V
GND
INPUT CAPACITOR (C1):
A low ESR capacitor is recommended to keep the noise at the converter to a minimum.
Ceramic capacitors are preferred but tantalum or low ESR electrolytic capacitors may
also suffice. Place C1 as close as possible to pins 1 & 2.
OUTPUT CAPACITOR (C2):
A 100μF/25V electrolytic capacitor is recommended.
NOT FOR PARALLEL OPERATION
This converter is not designed for parallel operation with another to increase output
power.
TEST CIRCUIT
FOR EFFICIENCY & RIPPLE GRAPHS (PAGE4)
Electronic
Load
Current
Meter
Current
Meter
+Vout
+
-
+Vin
30cm, 18AWG
Twisted
DC/DC
Converter
A
B
Cin
Voltage
Meter
Voltage
Meter
DC Power
Source
20MHz
Oscilloscope
Cout
GND
0V
+
A
+
A
A
B
C01
C02
1. Cin = 10μF / 50V for 500mA and 22μF / 50V for 1A, Cout = 100μF / 16V.
2. C01 = 10μF / 50V Electrolytic, C02 = 0.1μF / 50V Ceramic.
3. All points labeled A refer to one junction.
B
B
-
4. All points labeled B refer to one junction.
5. Use a short ground loop for probing. Do not use a wired ground clip.
th
20050 SW 112 Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
page 4 of 4
date 04/2008
PART NUMBER: V78XX-1000 series
DESCRIPTION: DC switching regulator, non-isolated
EFFICIENCY AND RIPPLE
Output
Ripple
Efficiency
100
90
50
40
30
20
10
V7803-1000
V7805-1000
V7812-1000
V7803-1000
V7805-1000
V7812-1000
80
70
0
4.75
60
Vin (V)
32
8
12
16
20
24
28
4.75
8
12 16 20 24 28 32 Vin(V)
Efficiency VS Vin(Full Load)
Ripple vs. Vin ( Full Load)
100
95
90
85
80
75
50
45
40
35
30
25
20
15
10
5
V7803-1000
V7805-1000
V7812-1000
V7803-1000
V7805-1000
V7812-1000
0
40
80
200 400 600 800 1000 1200
40
80
200
400
600
800 1000 1200
Output Current (mA)
Output Current(mA)
Ripple vs. Load (Vin=Vin_min)
Efficiency vs. Load (Vin=Vin_min)
100
90
80
70
60
50
40
50
45
40
35
30
25
20
15
10
5
V7803-1000
V7805-1000
V7812-1000
V7803-1000
V7805-1000
V7812-1000
0
40
80
200 400 600 800 1000 1200
40
80
200
400
600
800 1000 1200
Output Current (mA)
Output Current (mA)
Ripple vs. Load (Vin=24V)
Efficiency vs. Load (Vin=Vin_max)
th
20050 SW 112 Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
相关型号：
©2020 ICPDF网 联系我们和版权申明