Datenblatt

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date
01/26/2016
page
1 of 6
SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR
FEATURES
•
•
•
•
•
•
•
•
1 A current output
high efficiency up to 93%
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
MODEL
input
voltage
output
voltage
output
current
output
power
ripple and
noise1
efficiency
level2
range
(Vdc)
(Vdc)
(mA)
max
(W)
max
(mVp-p)
typ
(%)
V7801-1000-SMT
4.75 ~ 15
1.5
1,000
1.5
35
76
V7801A-1000-SMT
4.75 ~ 15
1.8
1,000
1.8
35
79
V7802-1000-SMT
5 ~ 18
2.5
1,000
2.5
35
83
V7803-1000-SMT
5 ~ 18
3.3
1,000
3.3
35
84
V7805-1000-SMT
7 ~ 18
5.0
1,000
5
35
90
V7806-1000-SMT
8.5 ~ 18
6.5
1,000
6.5
35
93
Notes:
1. 20 MHz bandwidth
2. Measured at Vin min. and 100% load
PART NUMBER KEY
V78 XX - XXX -SMT- X
Base Number
Output Voltage
Output Current
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Package Options
"blank" = standard
TR = Tape & Reel
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CUI Inc │ SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR
date 01/26/2016 │ page 2 of 6
INPUT
parameter
conditions/description
min
typ
max
units
operating input voltage
1.5, 1.8 Vdc models
2.5, 3.3 Vdc models
5.0 Vdc model
6.5 Vdc model
4.75
5.0
7.0
8.5
12
12
12
12
15
18
18
18
Vdc
Vdc
Vdc
Vdc
input filter
capacitor
remote on/off
on:
off:
open or 1.2 < Vc ≤ 6 V
Vc < 0.6 V
on/off control current
on:
off:
open or 1.2 < Vc ≤ 6 V
GND or Vc < 0.4 V
10
shutdown input current
µF
100
200
µA
120
200
µA
OUTPUT
parameter
conditions/description
min
typ
max capacitive load
max
units
1,000
µF
line regulation
measured from low line to high line at 100% load
±0.2
±0.5
%
load regulation
measured from 10% to full load at nominal input
±0.4
±1.0
%
voltage accuracy
measured from low line to high line at 100% load
adjustability1
1.8
2.5
3.3
5.0
switching frequency
PWM type
temperature coefficient
-40 °C ~ +85 °C ambient
Notes:
Vdc
Vdc
Vdc
Vdc
model
model
model
model
±2
1.5
1.5
1.8
2.5
±3
%
3.6
3.9
5.5
6.5
Vdc
Vdc
Vdc
Vdc
1.4
MHz
±0.02
%/°C
1. Output voltage adjustment must meet Vin-Vo > 2V requirement, see adjustment resistor values on page 4. Not availabe on 1.5 or 6.5 Vdc output models.
PROTECTIONS
parameter
conditions/description
min
short circuit protection
hiccup, continuous, automatic recovery
thermal shutdown
internal IC junction
current limit
typ
max
units
150
°C
1.8
A
SAFETY AND COMPLIANCE
parameter
conditions/description
min
thermal resistance
conducted emissions
CISPR22/EN55022 class A (without external circuit)
CISPR22/EN55022 class B (external circuit required, see Figure 1-b)
rediated emissions
CISPR22/EN55022 class A
(external circuit required, see Figure 1-b)
ESD
IEC/EN 61000-4-2, class B, contact ±6KV/ Air
±8KV
radiated immunity
IEC/EN 61000-4-3, class A, 10V/m
EFT/burst
IEC/EN 61000-4-4, class B, ±2KV
(external circuit required, see Figure 1-a)
surge
IEC/EN 61000-4-5, class B, ±2KV
(external circuit required, see Figure 1-a)
conducted immunity
IEC/EN 61000-4-6, class A, 3 Vr.ms
voltage dips & interruptions
IEC/EN 61000-4-29, class B, 0%-70%
MTBF
as per MIL-HDBK-217F, 25 °C
RoHS
2011/65/EU
1,000,000
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typ
max
units
90
°C/W
hours
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CUI Inc │ SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR
date 01/26/2016 │ page 3 of 6
ENVIRONMENTAL
parameter
conditions/description
min
typ
max
units
100
°C
-40
85
°C
-55
125
°C
case operating temperature
opertaing temperature
see derating curve
storage temperature
storage humidity
95
%
hand soldering
for 10 seconds
260
°C
reflow soldering
refer to IPC/JEDEC J-STD-020D.1
240
°C
max
units
MECHANICAL
parameter
conditions/description
dimensions
15.24 x 8.30 x 7.25
(0.600 x 0.327 x 0.285)
case material
Plastic (UL94-V0)
min
typ
mm
inches
weight
2.3
MECHANICAL DRAWING
units: mm [in]
pin tolerance: ±0.10 mm [±0.004 in]
general tolerance: ±0.25 mm [±0.010 in]
PIN CONNECTIONS
1
+Vin
7,9
GND
5
+Vout
6
Vadj
10
On/Off
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CUI Inc │ SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR
TYPICAL APPLICATION CIRCUIT
DERATING CURVE
V7805-1000-SMT
7,9
10
100
6
R1
C1
ON/OFF
GND
120
Vo u t
5
1
C4
470pF
Output Power (%)
Vin
C2
R2
GND
1. C1 and C2 are required for best performance and should
be fitted close to the converter pins.
2. See the capacitor values for C1 and C2 in the external
capacitor table below. These can be increased if required
and tantalum or low ESR electrolytic capacitors will also
suffice.
C1 (Ceramic)
C2 (Ceramic)
V7801-1000-SMT
10 µF / 25 V
22 µF / 16 V
V7801A-1000-SMT
10 µF / 25 V
22 µF / 16 V
V7802-1000-SMT
10 µF / 25 V
22 µF / 16 V
V7803-1000-SMT
10 µF / 25 V
22 µF / 16 V
V7805-1000-SMT
10 µF / 25 V
22 µF / 16 V
V7806-1000-SMT
10 µF / 25 V
22 µF / 16 V
APPLICATION EXAMPLE
C1
DC/DC
Converter
7 ,9
5
6
C4
L
+Vo u t
C2
470pF
22 F
Load
1
60
40
Safe Operating Area
20
-40
0
40
71 85
Operating Temperature (°C)
EXTERNAL CAPACITOR TABLE
MODEL
80
0
3. No parallel connection or plug and play.
Vin
date 01/26/2016 │ page 4 of 6
GND
To reduce output ripple, it is recommended to add a LC filter to the
output port.
L: Recommended parameter 10 ~ 47μH.
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120
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CUI Inc │ SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR
date 01/26/2016 │ page 5 of 6
ADJUSTMENT RESISTOR VALUES
MODEL
V7801A-1000
V7802-1000
V7803-1000
Vadj (V)
R1 (kΩ)
R2 (kΩ)
R1 (kΩ)
R2 (kΩ)
1.5
188.1
-
15.4
1.8
-
-
68.6
2.5
-
81.4
-
3.0
-
32.2
-
3.3
-
18.6
-
41.3
3.6
-
9.5
-
20.1
3.9
-
-
-
4.5
-
-
4.9
-
-
5.0
-
5.1
-
5.5
6.0
6.5
V7805-1000
R1 (kΩ)
R2 (kΩ)
R1 (kΩ)
R2 (kΩ)
-
-
-
-
-
-
15.4
-
-
-
-
87
-
9.7
-
88.7
339
-
30.5
-
-
-
48.8
-
-
121
75
-
8.0
-
51.0
115
-
-
-
-
16.6
338
-
-
-
-
8.0
1,835
-
-
-
-
-
6.5
-
-
-
-
-
-
5.2
-
426
-
-
-
-
-
1.1
-
58.7
-
-
-
-
-
-
-
16.9
-
-
-
-
-
-
-
3.2
The R1, R2 in the above table are used to set the output voltage. If no need to adjust the output voltage, connect a ceramic capacitor to
GND with 470pF typical value for increase immunity. Insure the output voltage is in the adjust range or else may cause permanent
damage to the device. Fine-tune output voltage must appease Vin-Vo>2V.
EMC RECOMMENDED CIRCUIT
V in
FUSE
LDM1
LDM2
EUT
+Vout
+Vin
GND
MOV
GND
TVS
C0
a
C1
b
Figure 1
Recommended External Circuit Components
FUSE
choose according to practical
input current
MOV
10D560
LDM1
82μH
TVS
SMCJ36A
C0
120μF/50V
C1
4.7μF/50V
LDM2
33μH
Table 1
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Load
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CUI Inc │ SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR
date 01/26/2016 │ page 6 of 6
REVISION HISTORY
rev.
description
date
1.0
initial release
11/23/2011
1.01
V-Infinity branding removed
09/04/2012
1.02
added TR package option
10/31/2012
housing width changed, EMC recommendations updated
01/26/2016
1.03
The revision history provided is for informational purposes only and is believed to be accurate.
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20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
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[email protected]
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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