V7812-500-SMT-TR [CUI]
IC 1-OUTPUT 5 W DC-DC REG PWR SUPPLY MODULE, ROHS COMPLIANT, PLASTIC, SMT-10/6, Power Supply Module;
| 型号： | V7812-500-SMT-TR |
| 厂家： | 
CUI INC |
| 描述： | IC 1-OUTPUT 5 W DC-DC REG PWR SUPPLY MODULE, ROHS COMPLIANT, PLASTIC, SMT-10/6, Power Supply Module 光电二极管 输出元件 |
| 文件： | 总8页 (文件大小：499K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
For more information, please visit the product page.
date 01/26/2016
page 1 of 8
SERIES: V78-500-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR
FEATURES
• 500 mA current output
• high efficiency up to 96%
• no heat sink required
• SMT package
• remote on/off control
• low ripple and noise
• short circuit protection, thermal shutdown
• wide temperature (-40°C~+85°C)
RoHS
input
voltage
output
voltage
output
current
output
power
max
ripple and
noise1
efficiency
MODEL
typ
range
max
Vin min
Vin max
(Vdc)
(Vdc)
(Vdc)
3.3
5
(mA)
500
500
500
500
(W)
(mVp-p)
(%)
90
94
95
96
(%)
V7803-500-SMT
V7805-500-SMT
V7812-500-SMT2
V7815-500-SMT2
4.5 ~ 28
6 ~ 28
1.65
2.5
6
25
25
25
25
75
81
90
92
12
12
24
24
14 ~ 28
17 ~ 28
12
15
7.5
Notes:
1. ripple & noise are measured at 20 MHz BW with 1 µF ceramic cap and 10 µF electrolytic capacitors on the output
2. must operate with a minimum of 5% loading
PART NUMBER KEY
V78 XX - XXX -SMT- X
Base Number
Output Voltage Output Current
Package Options
"blank" = standard
TR = Tape & Reel
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CUI Inc │ SERIES: V78-500-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR
date 01/26/2016 │ page 2 of 8
INPUT
parameter
conditions/description
min
typ
max
units
3.3 Vdc output
5 Vdc output
12 Vdc output
15Vdc output
4.5
6
14
17
12
12
24
24
28
28
28
28
Vdc
Vdc
Vdc
Vdc
input voltage
remote on/off shutdown
threshold voltage
1.1
1.25
1.4
Vdc
on:
off:
open or 1.5<Vc≤6V
GND or 0V<Vc<1V
on/off control current
shutdown input current
2
µA
µA
15
30
OUTPUT
parameter
conditions/description
min
typ
max
1000
±0.5
±0.75
±3
units
µF
max capacitive load
line regulation
load regulation
voltage accuracy
adjustability1
measured from low line to high line at 100% load
measured from 10% to full load at nominal input
measured from low line to high line at 100% load
see application notes
±0.2
±0.3
±2
%
%
%
temperature coefficient
±0.02
%/°C
Notes:
1. output voltage adjustment must meet Vin-Vo > 2V requirement
PROTECTIONS
parameter
conditions/description
min
typ
max
units
short circuit protection
thermal shutdown
current limit
hiccup, continuous, automatic recovery
internal IC junction
160
1.8
°C
A
SAFETY AND COMPLIANCE
parameter
conditions/description
min
typ
typ
max
units
RoHS
2011/65/EU
MTBF
as per MIL-HDBK-217F, 25°C
2,000,000
hours
ENVIRONMENTAL
parameter
conditions/description
min
max
100
85
units
°C
case operating temperature
operating temperature
storage temperature
storage humidity
see derating curve
-40
-55
°C
125
95
°C
%
hand soldering
for 10 seconds
300
240
°C
reflow soldering
refer to IPC/JEDEC J-STD-020D.1
°C
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CUI Inc │ SERIES: V78-500-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR
date 01/26/2016 │ page 3 of 8
DERATING CURVES
100
80
60
40
20
-40
-20
0
20
40
60 71
85
100
120
Ambient Temperature (°C)
MECHANICAL
parameter
dimensions
conditions/description
min
typ
max
units
15.24 x 8.30 x 7.25 (0.600 x 0.327 x 0.285 inch)
plastic (UL94-V0)
mm
case material
weight
2.3
g
MECHANICAL DRAWING
units: mm [in]
pin tolerance: ±0.10 mm [±0.004 in]
general tolerance: ±0.25 mm [±0.010 in]
PIN CONNECTIONS
1
5
Vin
Vout
Vadj
6
7
GND
GND
On/Off
9
10
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CUI Inc │ SERIES: V78-500-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR
date 01/26/2016 │ page 4 of 8
PACKAGING DIMENSIONS
Taping dimension:
1.75 [0.069]
11.50 [0.453]
2.00 [0.079]
∅1.50 [0.059]
0.50 [0.020]
14.70 [0.579]
10.20[0.402]
12.40 [0.488]
Taping reel dimension:
∅1.50 [0.059]
7.65 [0.301]
16.00 [0.630]
29.40 [1.157]
∅100.00[3.937]
5.60 [0.220]
Note:
Unit :mm[inch]
General tolerances: 0.50mm[ 0.020inch]
L=530mm[20.866inch] Tube Quantity: 33pcs
L=220mm[8.661inch] Tube Quantity: 13pcs
∅
13.00 [0.512]
∅
21.50 [0.846]
Note:
Unit :mm[inch]
General tolerances: 0.50mm[ 0.020inch]
Devices per reel quantity:500pcs
TYPICAL APPLICATION CIRCUIT
V78XX-500-SMT
1. C1, C2: Use ceramic capacitors (see table below); C3: For best performance, use a 100 μF or more capacitor.
2. C1, C2, & C3 are required and should be placed close to the pins of the converter, with shortest possible leads.
3. R1 is used when trimming down. R2 is used when trimming up.
4. No parallel connection or plug and play.
C1
C2
Part Number
(ceramic capacitor)
(ceramic capacitor)
V7803-500-SMT
V7805-500-SMT
V7812-500-SMT
V7815-500-SMT
10uF/50V
10uF/50V
10uF/50V
10uF/50V
22uF/16V
22uF/16V
10uF/25V
10uF/25V
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CUI Inc │ SERIES: V78-500-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR
date 01/26/2016 │ page 5 of 8
OUTPUT TRIMMING
Trim Down
R1(KΩ)
61*Vo-75.10
3.3-Vo
61*Vo-91.52
5.0-Vo
71*Vo-287.02
12-Vo
Trim Up
Vo nom
3.3V
5.0V
12V
Part Name
R2(KΩ )
75.10-10*Vo
Vo-3.3
91.52-10*Vo
Vo-5.0
287.02-20*Vo
Vo-12
269.37-15*Vo
Vo-15
V7803-500-SMT
=
=
=
=
V7805-500-SMT
V7812-500-SMT
V7815-500-SMT
=
=
66*Vo-269.37
15-Vo
=
=
15V
To trim the output of the device input the desired output voltage (Vo) into the proper equation.
R1 trims the output voltage down and R2 trims the voltage up. If not using the trim feature
R1 and R2 are left open. Make sure that the desired output voltage is within the trim range.
TEST CIRCUIT
1) Efficiency and Output Voltage Ripple Test
25.4mm
25.4mm
12.7mm
+Vout
Vin
DC/DC
Copper strip
5
1
Converter
1
F
10
F
7 9
6
C1
Ta ntalum Scope
Ceramic
C3
C2
470pF
Ceramic
C5
GND
Copper strip
2) Start-up and Load Transient Response Test
50.8 mm
+Vout
Vin
DC/DC
Converter
Copper strip
5
1
7 9
6
C1
Scope
C2 C3
470pF
C5
Ceramic
GND
Copper strip
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CUI Inc │ SERIES: V78-500-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR
date 01/26/2016 │ page 6 of 8
EFFICIENCY AND RIPPLE
Efficiency(%)
100
Ripple (mV)
45
90
80
70
60
50
40
30
20
10
0
40
35
30
25
20
15
10
5
V7803-500-SMT
V7805-500-SMT
V7812-500-SMT
V7815-500-SMT
V7803-500-SMT
V7805-500-SMT
V7812-500-SMT
V7815-500-SMT
0
Load (mA)
20 50 80 120 160 200 240 280 320 360 400 440 480 500 550
Load (mA)
20 50 80 120 160 200 240 280 320 360 400 440 480 500 550
Efficiency VS Output Load (Vin=Norm)
Output Voltage Ripple VS Output Load (Vin=Norm)
Efficiency (%)
Ripple (mV)
100
95
90
85
80
75
70
65
60
55
50
45
40
45
40
35
30
25
20
15
10
5
V7803-500-SMT
V7803-500-SMT
V7805-500-SMT
V7812-500-SMT
V7815-500-SMT
V7805-500-SMT
V7812-500-SMT
V7815-500-SMT
0
4.5
6
8
10 12 14 16 17 20 22 24 26 28
Vin(V)
Vin (V)
10 12 14 16 17 20 22 24 26 28
4.5
6
8
Efficiency VS Input Voltage (Full Load)
Output Voltage Ripple VS Input Voltage (Full Load)
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
cui.com
techsupport@cui.com
CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.
CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is
assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical
component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to
affect its safety or effectiveness.
For more information, please visit the product page.
CUI Inc │ SERIES: V78-500-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR
date 01/26/2016 │ page 7 of 8
SHUTDOWN CONTROL
The ON/OFF pin provides several features for adjusting and sequencing the power supply, a user has the flexibility of using the ON/OFF pin as:
1) A digital on/off control by pulling down the ON/OFF pin with an open-drain transistor.
ON/OFF
2) Line UVLO. If desired to achieve a UVLO voltage, a resistor divider from Vin to ON/OFF to GND can be used to disable the converter until
a higher input voltage is achieved. For example, it is not useful for a converter with 12V output to start up with a 12V input , as the
output cannot each regulation. To enable the converter when the input voltage reaches 14V, a 51kΩ/5kΩ voltage divider from Vin to GND
can be connected to the ON/OFF pin. Both the precision 1.25V threshold and 150mV hysteresis are multiplied by the resistor ratio,
providing a proportional 12% hysteresis for any startup threshold. So, the turn off threshold would be between 12.3V to 15.7V.
Vin
+Vout
V78XX-500-SMT
5
1
51KΩ
5KΩ
10
7,9
6
100
F
C1
470pF
GND
3) Power supply sequencing. By connecting a small capacitor from ON/OFF to GND, the 2 A current source and 1.25V threshold can provide
a stable and predictable delay between startup of multiple power supplies. For example, a startup delay of roughly 64mS is provided using
100nF, and roughly 136mS by using 200nF.
Vin
+Vout
V78XX-500-SMT
5
1
7,9
10
C5
6
C1
100 F
470pF
100nF
GND
CH1: Von/off
CH2: Vo
Delay time: 64mS
Vin
+Vout
V78XX-500-SMT
5
1
10 7,9
C5
6
C1
100 F
470pF
200nF
GND
CH1: Von/off
CH2: Vo
Delay time: 136mS
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For more information, please visit the product page.
CUI Inc │ SERIES: V78-500-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR
date 01/26/2016 │ page 8 of 8
REVISION HISTORY
rev.
description
date
1.0
initial release
new template applied
01/04/2008
04/28/2009
09/06/2012
10/31/2012
01/30/2013
03/08/2013
01/26/2016
1.01
1.02
1.03
1.04
1.05
1.06
V-Infinity branding removed
added TR package option
added minimum loading requirement note
updated spec
housing width changed, updated datasheet
The revision history provided is for informational purposes only and is believed to be accurate.
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
cui.com
techsupport@cui.com
CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.
CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is
assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical
component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to
affect its safety or effectiveness.
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