K7801T-1000 データシートの表示（PDF） - MORNSUN Science& Technology Ltd.

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K7801T-1000

WIDE INPUT, NON-ISOLATED & REGULATED SMD PACKAGE SINGLE OUTPUT

MORNSUN Science& Technology Ltd. 

COMMON SPECIFICATIONS

Item

Test Conditions

Min. Typ. Max. Units

Case Material

MTBF

(MIL-HDBK-217F,+25°C)

Plastic (UL94-V0)

1000

k hours

Hop swap

Thermal resistance

Weight

Not supported

90

2.3

℃/W

g

EMC SPECIFICATIONS

EN55022, CLASS A(without external circuit)

CE

EN55022, CLASS B(refer to Figure 4)

RE

ESD

EFT

Surge

EN55022, CLASS A(refer to Figure 5)

IEC/EN61000-4-2 Air ±8KV / Contact ±6KV perf. Criteria B

IEC/EN61000-4-4 ±2KV perf. Criteria B

IEC/EN61000-4-5 ±2KV perf. Criteria B(refer to Figure 4)

TYPICAL APPLICATION CIRCUIT

Vin

C1

1 K7805T-1000 5

10 7,9

6

R1

Vout

C2

GND

ON/OFF C4

R2

470pF

GND

(Figure 1)

1. C1, C2 is required for best performance and should be fitted close to the converter

pins.

2. The capacitance of C1, C2 sees external capacitor table, it can be increased properly if

required, and tantalum or low ESR electrolytic capacitors may also suffice.

3. No parallel connection or plug and play.

EXTERNAL CAPACITOR TABLE

Part

Number

K7803T-1000

C1

(Ceramic

Capacit or)

10μF/25V

C2

(Ceram ic

Capacitor)

22μF/16V

K7805T-1000

10μF/25V

22μF/16V

ADJUSTMENT RESISTOR VALUES

TYPICAL TEMPERATURE CURVE

Temperature Derating Graph

120

100

80

60

Safe Operating Area

40

20

0

-40

0

40 71 85 120

Operating Temp.(°C )

(Figure2)

RECOMMENDED REFLOW SOLDERING PROFILE

250

P ea k.Te mp 2 4 0 C

10 Sec Max

220 C

200

90 Sec Max

(>220 C)

150

100

50

0

Time (sec.)

(Figure 3)

Part Number

Vo (nominal)

Vadj(V)

1.8

2.5

3.0

3.3

3.6

3.9

4.5

4.9

5.0

5.1

5.5

6.0

6.5

K7803T-1000

3.3(V)

R1(KΩ) R2(KΩ)

15.4

-

87

-

339

-

-

-

-

121

-

51.0

-

16.6

-

8.0

-

6.5

-

5.2

-

1.1

-

-

-

-

K7805T-1000

5.0(V)

R1(KΩ) R2(KΩ)

-

-

9.7

-

30.5

-

48.8

-

75

-

115

-

338

-

1835

-

-

-

-

426

-

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.

The copyright and authority for the interpretation of the products are reserved by MORNSUN

Specifications subject to change without notice.

K78XXT-1000

A/0-2011

Page 2 of 5

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