MICRODC WRN7803T-500

WRN78XXT-500 Series
WIDE INPUT, NON-ISOLATED & REGULATED SMD PACKAGE SINGLE OUTPUT
PRODUCT PROGRAM
Input Voltage(VDC)
Output Voltage (VDC)
Part Number
Adjust
Efficienc
Efficiencyy(%,Typ)
Current
Vin
Vin
(min.)
(max.)
(mA)
Nominal
Range
Normal
WRN7803T-500
12
4.5-28
3.3
1.8-5.5
500
90
75
FEATURES
WRN7805T-500
12
6.0-28
5.0
2.5-8.0
500
94
81
◆Efficiency up to 96%
WRN7809T-500
24
11-28
9.0
3.0-11.5
500
95
87
◆No need for heat sinks
WRN7812T-500
24
14-28
12
4.5-13.5
500
95
90
◆0.5AMP SMD package
WRN7815T-500
24
17-28
15
4.5-15.5
500
96
92
◆Wide input voltage range(4.5V~28V)
Note:
1. Answer for Vin-Vo>2V if needed to adjust the output voltage;
2. If input voltage above specified may cause permanent damage to the device.
3. WRN7812T-500, WRN7815T-500 is not allowed to operate under no load.
◆Adjustable output voltage
Range
◆Remote ON/OFF control
◆Short circuit protection,Thermal shutdown
SPECIFICATIONS
◆Very low shutdown current
◆Super low ripple and noise
MODEL SELECTION
①
②
③
④
①
② ③
④
WR
WRN78
N78 05 T -500
①Product Series
②Output Voltage
③SMD Package Style ④Output Current
Characteristics
Conditions
Min.
Typ.
Input voltage range
See selection guide
4.5
12/24
Output voltage adjust range
See selection guide
1.8
Output voltage accuracy
Input voltage range at full load
±2
Line regulation
Input voltage range at full load
Load regulation
Nominal Input ,10% to 100% load
Ripple and Noise
20MHz bandwidth
Short circuit protection mode
Hiccup mode
Short circuit protection
Continuous, automatic recovery
Output current limit
APPLICATIONS
The WRN78xxT-500 series with high efficiency
regulators
are
ideally
supply
for
V
±0.2
±0.5
%
±0.3
±0.75
%
10
25
mVp-p
±75
mV
1.8
Quiescent current
Normal input (3.3V, 5V output)
15
Thermal shutdown
Internal IC junction
160
Temperature coefficient
-40℃ to +85℃ ambient
±30
ON: open or 1.5<Vc≤6V
any heat sinks , even if operate at +85 ℃. The additional
ON/OFF shutdown threshold voltage
1.1
Operating temperature range
-40
only 10mV and a shutdown input current of typically only
℃
±0.02
%/℃
1000
µF
µA
15
30
1.25
1.4
V
±85
℃
±100
℃
±125
℃
300
℃
95
%
Operating case temperature
Storage temperature range
Lead temperature
15uA .
mA
2
Shutdown input current
adjustable
A
OFF:GND or 0V<Vc<1V
space
output voltage.Super low ripple and noise of typically
V
%
100%<->10% load
constrained mobile applications . They are no need for
features include remote ON/OFF control and
28
±3
Dynamic load stability
ON/OFF control current
Units
15.5
Max capacitance load
switching
Max.
-55
1.5mm from case for 10 seconds
Storage humidity range
Cooling
Free Air Convection
Case material
MTBF
Plastic (UL94-V0)
(MIL-HDBK-217F,+25℃)
2000
Package weight
K hours
2.3
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µA
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Page 1 of 6
g
WRN78XXT-500 Series
TYPICAL TEMPERATURE CURVE
EXTERNAL CAPACITOR TABL
Part Number
C1
(Ceramic capacitor)
C2
(Ceramic capacitor)
WRN7803T-500
10uF/50V
22uF/16V
WRN7805T-500
10uF/50V
22uF/16V
WRN7809T-500
10uF/50V
22uF/16V
WRN7812T-500
10uF/50V
10uF/25V
WRN7815T-500
10uF/50V
10uF/25V
STANDARD APPLICATION CIRCUIT
1. C1,C2: Choose a ceramic type capacitors; C3 is require ,for best performance , use a 100uF or more capacitor please.
2. C1,C2 are require and should be placed close to the pins of the converter, with shortest possible traces.
3. No parallel connection or plug and play.
ADJUSTMENT RESISTOR VALUES
Model
WRN7803T-500
WRN7805T-500
WRN7809T-500
WRN7812T-500
Vo (nominal)
3.3V
5.0V
9V
12V
15V
Adjusted range
1.8V-5.5V
2.5V-8V
3V-11.5V
4.5V-13.5V
4.5V-15.5V
Regulated voltage
R1(kΩ)
1.8V
24.31
R2(kΩ)
2.5V
98.9
25.28
3.0V
364
47.6
3.1
3.3V
R1(kΩ)
R2(kΩ)
R1(kΩ)
R2(kΩ)
R1(kΩ)
R2(kΩ)
WRN7815T-500
R1(kΩ)
67.3
5.79
3.6V
129.1
95.8
8.47
3.9V
59.1
140.9
11.8
4.5V
24.3
411
19.14
4.55
2.69
4.9V
15.25
2060
25.77
8.05
5.55
5.0V
14.05
27.3
9.16
6.17
5.1V
12.8
208.5
29.22
10.41
6.98
5.5V
8.65
58.5
37.8
15
10
15.57
70.8
29.8
18.5
6.5V
7.2V
7.8
115.3
43.5
26.2
8.0V
3.15
243.1
64.8
36.7
105
52.9
76.3
9.0V
10.0V
18.84
180.6
11.0V
4.47
370
111
11.5V
1.61
635
134.1
12.0V
R2(kΩ)
167.7
13.0V
40.6
277.8
13.5V
15
385
14.0V
586
14.5V
1128
15.0V
15.5V
88.2
Note: The above dates only are as reference, you could make corresponding adjustment with actual output when they are at practical application.
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Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 2 of 6
WRN78XXT-500 Series
TEST CONFIGURATIONS (TA=25
(TA=25℃
℃)
1
Efficiency and Output Voltage Ripple Test
2
Start-up and Load Transient Response Test
APPLICATION EXAMPLE
1. To reduce output ripple, it is recommended to add a LC filter to output port.
L: Recommended parameter 10µH ~ 47µH.
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Page 3 of 6
WRN78XXT-500 Series
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.
2) Line UVLO. If desired to achieve a UVLO voltage, an 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 voltage, as the output
cannot teach regulation. To enable the converter when the input voltage reaches 14V , a 51kΩ ⁄ 5kΩ resistor 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.
3) Power supply sequencing. By connecting a small capacitor from ON/OFF to GND, the 2µA 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.
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Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 4 of 6
WRN78XXT-500 Series
CHARACTERISTIC CURVE (TA=25
(TA=25℃
℃)
Efficiency and Output Voltage Ripple
TAPING REEL DIMENSIONS
Note:
Unit :mm[inch]
General tolerances: ±0.50mm[±0.020inch]
Devices per reel quantity:500pcs
Inner packaging dimensions: L*W*H=365*350*150mm
Outer packaging dimensions: L*W*H=390*360*245mm
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Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 5 of 6
WRN78XXT-500 Series
PACKAGE STYLE AND PINNING
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT
TUBE OUTLINE DIMENSIONS
RoHS COMPLIANT INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature
of 300°C for 10 seconds.
The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin
with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this
series are backward compatible with Sn/Pb soldering systems.
Microdc Professional Power Module,Inc.
Tel:0086-20-86000646
REACH COMPLIANT INFORMATION
E-mail:[email protected]
Website:http://www.microdc.cn
http://www.microdc.cn
This series has proven that this product does not contain harmful chemicals, it also has
harmful chemical substances through the registration, inspection and approval.
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 6 of 6