Sanken Electric Co SAI01 Datasheet

●SAI Series

SAI Series

Surface-Mount, Separate Excitation Switching Type

■Features

• Surface-mount package

• Output current: 0.4 to 0.5A

• High efficiency: 75 to 89%

• Requires only 4 external components

• Phase correction and output voltage adjustment performed internally

• Built-in reference oscillator (60kHz)

• Built-in overcurrent and thermal protection circuits

■Applications

• Power supplies for telecommunication equipment

• Onboard local power supplies

■Lineup

Part Number SAI01 SAI02 SAI03 SAI04 SAI06

VO(V) 5.0 3.3 12.0 15.0 9.0

IO(A) 0.5 0.4

■Absolute Maximum Ratings

Parameter
DC Input Voltage
Power Dissipation
Junction Temperature
Storage T emperature
SW Terminal Applied Reverse Voltage
Thermal Resistance(junction to case)

Symbol

VIN

PD

Tj

Tstg

VSW

Rth(j-c)

Ratings

35

0.75

+125

–40 to +125

–1
20

■Recommended Operating Conditions

Parameter

DC Input Voltage Range
Output Current Range
Operating Junction Temperature Range

Symbol

VIN

IO

Tjop

SAI01 SAI02 SAI03 SAI04 SAI06

7 to 33 5.3 to 28 15 to 33 18 to 33 12 to 33

0 to 0.5 0 to 0.4

Ratings

–30 to +125

Unit

V

W

°C
°C

V

°C/W

Unit

V
A

°C

72

●SAI Series

■Electrical Characteristics

Parameter

Output Voltage

Efficiency

Switching Frequency

Line Regulation

Load Regulation

Temperature Coefficient of Output Voltage
Ripple Rejection

Overcurrent Protection
Starting Current

Symbol

Conditions

Conditions

Conditions

∆VOLINE

Conditions

∆VOLOAD

Conditions

∆VO/∆Ta

RREJ
Conditions

Conditions

VO

η

f

IS1

■Outline Drawing

(Ta=25°C)

Ratings

SAI01 SAI02 SAI03 SAI04 SAI06

min. typ. max. min. typ. max. min. typ. max. min. typ. max. min. typ. max.

4.80 5.00 5.20 3.17 3.30 3.43 11.40 12.00 12.60 14.25 15.00 15.75 8.55 9.00 9.45
VIN=20V, IO=0.3A VIN=15V, IO=0.3A VIN=24V, IO=0.3A VIN=27V, IO=0.3A VIN=21V, IO=0.3A

80 75 88 89 86

VIN=20V, IO=0.3A VIN=15V, IO=0.3A VIN=24V, IO=0.3A VIN=27V, IO=0.3A VIN=21V, IO=0.3A

60 60 60 60 60

VIN=20V, IO=0.3A VIN=15V, IO=0.3A VIN=24V, IO=0.3A VIN=27V, IO=0.3A VIN=21V, IO=0.3A

80 100 60 80 100 130 100 130 90 110

VIN=10 to 30V, IO=0.3A VIN=8 to 28V, IO=0.3A VIN=18 to 30V, IO=0.3A VIN=21 to 30V, IO=0.3A VIN=15 to 30V, IO=0.3A

30 40 20 30 70 95 90 120 50 80

VIN=20V, IO=0.1 to 0.4A VIN=15V, IO=0.1 to 0.4A VIN=24V, IO=0.1 to 0.4A VIN=27V, IO=0.1 to 0.4A VIN=21V, IO=0.1 to 0.4A

±0.5 ±0.5 ±1.5 ±1.5 ±1.0

45 45 45 45 45

f=100 to 120HZf=100 to 120HZf=100 to 120HZf=100 to 120HZf=100 to 120H

Z

0.55 0.55 0.45 0.45 0.45
VIN=10V VIN=8V VIN=18V VIN=21V VIN=15V

(unit: mm)

Unit

V

%

kHZ

mV

mV

mV/°C

dB

A

3V

OS

±0.25

4
.GND

2.54

±0.15

+0.15

–0.05

0.89

0.75

A

0.25

±0.3

1.0

■Block Diagram

VIN

OSC

Reg.

4

GND

Comp.

a

Reset

6.8

8.0

6.3

3.0

9.8

Amp.

max.

±0.2

±0.3

±0.5

±0.2

b

0~0.15

OCP

V

REF

2 SW

1V

Drive

±0.2

max.

IN

4.7

4.32

±0.2

1.4

±0.2

3.6

max.

4.0

a. Part Number
b. Lot Number
A Case temperature measuring point

q VIN
w SWOUT
e VOS
r GND

+0.15

–0.05

0.3

Plastic Mold Package Type
Flammability: UL94V-0
Weight: Approx. 0.22g

■Standard External Circuit

V

V

3.3

5

: 200µH

V

V

V

12

15

: 300µH

9

V

O

3

D

1

C

330µF

2

GND

TSD

21

3

SWOUT

VOS

GND

12

V

IN

V

IN

SAI

+ +

C

1

100µF

GND

4

SW

SFPB54
(Sanken)

L1

OUT

V

OS

73