www.fairchildsemi.com

Rev. .5.0

Features

· Precision fixed operating frequency (100/67/50kHz)
· Low start-up current(typ. 100uA)
· Pulse by pulse current limiting
· Over current protection
· Over voltage protecton (Min. 25V)
· Internal thermal shutdown function
· Under voltage lockout
· Internal high voltage sense FET
· Auto-restart mode

Description

The SPS product family is specially designed for an off-line
SMPS with minimal external components. The SPS consist
of high voltage power SenseFET and current mode PWM
IC. Included PWM controller features integrated fixed fre-
quency oscillator, under voltage lock-out, leading edge
blanking, optimized gate turn-on/turn-off driver, thermal
shutdown protection, over voltage protection, and tempera-
ture compensated precision current sources for loopcompen-
sation and fault protection circuitry. Compared to discrete
MOSFET and PWM controller or RCC solution, a SPS can
reduce total component count, design size, weight and at the
same time increase efficiency, productivity, and system reli-
ability. It has a basic platform well suited for cost-effective
design in either a flyback converter or a forward converter.

TO-220F-4L

1. GND 2. DRAIN 3. V

4. FB

Internal Block Diagram

Vcc

DRAIN

GND

SFET

Vref

OSC

INTERNAL

BIAS

GOOD

LOGIC

2.5R

1 mA

5 uA

+
_

7.5V

THERMAL S/D

POWER ON RESET

L.E.B

+
_

27V

UVLO

Rsens

KA5H0380R/KA5M0380R/KA5L0380R

SPS

KA5H0380R/KA5M0380R/KA5L0380R

Absolute Maximum Ratings

Notes:
1. Tj=25

C to 150

2. Repetitive rating: Pulse width limited by maximum junction temperature
3. L=51mH, starting Tj=25

4. L=13

H, starting Tj=25

Characteristic

Symbol

Value

Unit

Drain-source (GND) voltage

(1)

VDSS

800

Drain-Gate voltage (R

=1M

)

VDGR

800

Gate-source (GND) voltage

VGS

Drain current pulsed

(2)

IDM

Single pulsed avalanche energy

(3)

EAS

Avalanche current

(4)

IAS

Continuous drain current (T

=25

3.0

Continuous drain current (T

=100

2.1

Supply voltage

VCC

Analog input voltage range

VFB

0.3 to V

Total power dissipation

PD (watt H/S)

Derating

0.28

Operating temperature

TOPR

25 to +85

Storage temperature

TSTG

55 to +150

KA5H0380R/KA5M0380R/KA5L0380R

Electrical Characteristics (SFET part)

(Ta = 25

C unless otherwise specified)

Note:
Pulse test: Pulse width < 300

S, duty < 2%

Characteristic

Symbol

Test condition

Min.

Typ.

Max.

Unit

Drain-source breakdown voltage

DSS

=0V, I

=50

800

Zero gate voltage drain current

DSS

=Max., Rating,

=0V

250

=0.8Max., Rating,

=0V, T

=125

1000

Static drain-source on resistance

(note)

DS(ON)

=10V, I

=0.5A

Forward transconductance

(note)

=50V, I

=0.5A

1.5

2.5

Input capacitance

iss

=0V, V

=25V,

f=1MHz

779

Output capacitance

oss

75.6

Reverse transfer capacitance

rss

24.9

Turn on delay time

d(on)

=0.5BV

DSS

, I

=1.0A

(MOSFET switching
time are essentially
independent of
operating temperature)

Rise time

Turn off delay time

d(off)

150

Fall time

Total gate charge
(gate-source+gate-drain)

=10V, I

=1.0A,

=0.5BV

DSS

(MOSFET

switching time are
essentially independent of
operating temperature)

Gate-source charge

7.2

Gate-drain (Miller) charge

12.1

----

KA5H0380R/KA5M0380R/KA5L0380R

Electrical Charcteristics (SFET part) (Continued)

(Ta = 25

C unless otherwise specified)

NOTE:
1. These parameters, although guaranteed, are not 100% tested in production
2. These parameters, although guaranteed, are tested in EDS(water test) process

Characteristic

Symbol

Test condition

Min.

Typ.

Max.

Unit

REFERENCE SECTION

Output voltage

(1)

Vref

Ta=25

4.80

5.00

5.20

Temperature Stability

(1)(2)

Vref/

+85

0.3

0.6

mV/

OSCILLATOR SECTION

Initial accuracy

OSC

KA5H0380R

100

110

kHz

Initial accuracy

OSC

KA5M0380R

kHz

Initial accuracy

OSC

KA5L0380R

kHz

Frequency change with temperature

(2)

+85

PWM SECTION

Maximum duty cycle

max

KA5H0380R

Maximum duty cycle

max

KA5M0380R
KA5L0380R

FEEDBACK SECTION

Feedback source current

Ta=25

C, 0V<V

<3V

0.7

0.9

1.1

Shutdown delay current

delay

Ta=25

C, 5V

OVER CURRENT PROTECTION SECTION

Over current protection

L(max)

Max. inductor current

1.89

2.15

2.41

UVLO SECTION

Start threshold voltage

th(H)

8.4

9.6

Minimum operating voltage

th(L)

After turn on

TOTAL STANDBY CURRENT SECTION

Start current

=14V

0.1

0.17

Operating supply current
(control part only)

OPR

<28

SHUTDOWN SECTION

Shutdown Feedback voltage

>6.5V

6.9

7.5

8.1

Thermal shutdown temperature (Tj)

(1)

140

160

Over voltage protection

OVP

>24V

KA5H0380R/KA5M0380R/KA5L0380R

Typical Performance Characteristics

-1

@Notes:

1. 300

s Pulse Test

2. T

= 25

Top : 15V

10V

8.0V

7.0V

6.0V

5.5V

5.0V

Bottom:4.5V

, D

r
ai

n
C

u
r
r
e
n
t
[A

]

, Drain-Source Voltage [V]

-1

@ Notes:

1. V

= 30 V

2. 300

s Pulse Test

-25

150

,
D

r
ai

n C

u
rr

ent

[
A
]

, Gate-Source Voltage [V]

0.4

0.6

0.8

1.0

0.1

@ Notes:

1. V

= 0V

2. 300

s Pulse Test

150

,
R

e
v
e
rs

e D

r
ai

n C

u
rrent

[
A
]

, Source-Drain Voltage [V]

100

200

300

400

500

600

700

800

900

1000

rss

oss

iss

= C

+ C

= shorted)

oss

= C

+ C

rss

= C

n
c
e [p

F
]

, Drain-Source Voltage [V]

@ Note : I

=3.0A

=640V

=400V

=160V

,
G

a
t
e-S

ourc

e
V

o
l
t
age

[
V
]

,Total Gate Charge [nC]

Vgs=10V

Vgs=20V

@ Note : Tj=25

Fig3. On-Resistance vs. Drain Current

(
o
n
)

[

]

r
a
i
n-

o
u
r
c
e
O

n
-
R

i
s
t
a
nc

,Drain Current

Figure 1. Output Characteristics

Figure 2. Thansfer Characteristics

Figure 3. On-Resistance vs. Drain Current

Figure 4. Source-Drain Diode Forward Voltage

Figure 5. Capacitance vs. Drain-Source Voltage

Figure 6. Gate Charge vs. Gate-Source Voltage

KA5H0380R/KA5M0380R/KA5L0380R

typical performance characteristics (continued)

- 5

- 4

- 3

- 2

- 1

- 2

- 1

single pulse

0.2

0.1

0.01

0.02

0.05

D=0.5

@ Notes :

1. Z

J C

(t)=1.25

C/W Max.

2. Duty Factor, D=t

3. T

J M

-T

D M

J C

(t)

) ,

her

mal

Res

pon

, Square Wave Pulse Duration [sec]

-50

100

150

0.8

0.9

1.0

1.1

1.2

@ Notes :
1. V

= 0V

2. I

= 250

, Junction Temperature [

,
(
N

o
r
m

a
liz

e
d
)

r
ai

n
-
S

our

c
e
B

r
eak

dow

o
l
t
ag

-50

100

150

0.0

0.5

1.0

1.5

2.0

2.5

(
on)

,
(
N

a
l
i
z
ed)

r
ai

our

c
e
O

n
-
R

i
s
t
anc

, Junction Temperature [

@ Notes:
1. V

= 10V

2. I

= 1.5 A

-2

-1

100

1 ms

10 ms

@ Notes :

1. T

= 25

2. T

= 150

3. Single Pulse

Operation in This Area
is Limited by R

DS(on)

, Drai

n Current [

]

, Drain-Source Voltage [V]

100

120

140

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

,
D

r
ai

n C

u
r
r
ent

[
A
]

, Case Temperature [

Figure 7. Breakdown Voltage vs. Temperature

Figure 8. On-Resistance vs. Temperature

Figure 9. Max. Safe Operating Area

Figure 10. Max. Drain Current vs. Case Temperature

Figure 11. Thermal Response

KA5H0380R/KA5M0380R/KA5L0380R

typical performance characteristics (control part)

(These characteristic graphs are normalized at Ta = 25

Fig.1 Operating Frequency

0.8

0.85

0.9

0.95

1.05

1.1

1.15

1.2

-25

100 125 150

Fosc

Fig.2 Feedback Source Current

0.8

0.85

0.9

0.95

1.05

1.1

1.15

1.2

-25

100 125 150

Ifb

Fig.3 Operating Current

0.8

0.85

0.9

0.95

1.05

1.1

1.15

1.2

-25

100 125 150

Iop

Fig.4 Max Inductor Current

0.8

0.85

0.9

0.95

1.05

1.1

-25

100 125 150

Ipeak

Fig.5 Start up Current

0.5

0.7

0.9

1.1

1.3

1.5

-25

100 125 150

Istart

Fig.6 Start Threshold Voltage

0.85

0.9

0.95

1.05

1.1

1.15

-25

75 100 125 150

Vstart

Figure 1. Operating Frequency

Figure 2. Feedback Source Current

Figure 3. Operating Current

Figure 4. Max Inductor Current

Figure 5. Start up Current

Figure 6. Start Threshold Voltage

KA5H0380R/KA5M0380R/KA5L0380R

typical performance characteristics (continued)

(These characteristic graphs are normalized at Ta = 25

Fig.7 Stop Threshold Voltage

0.85

0.9

0.95

1.05

1.1

1.15

-25

100 125 150

Vstop

Fig.8 Maximum Duty Cycle

0.85

0.9

0.95

1.05

1.1

1.15

-25

75 100 125 150

Dmax

Fig.9 Vcc Zener Voltage

0.8

0.85

0.9

0.95

1.05

1.1

1.15

1.2

-25

100 125 150

Fig.10 Shutdown Feedback Voltage

0.85

0.9

0.95

1.05

1.1

1.15

-25

100 125 150

Vsd

Fig.11 Shutdown Delay Current

0.8

0.85

0.9

0.95

1.05

1.1

1.15

1.2

-25

100 125 150

Idelay

Fig.12 Over Voltage Protection

0.85

0.9

0.95

1.05

1.1

1.15

-25

100 125 150

Vovp

Figure 7. Stop Threshold Voltage

Figure 8. Maximum Duty Cycle

Figure 9. V

Zener Voltage

Figure 10. Shutdown Feedback Voltage

Figure 11. Shutdown Delay Current

Figure 12. Over Voltage Protection

KA5H0380R/KA5M0380R/KA5L0380R

typical performance characteristics (continued)

(These characteristic graphs are normalized at Ta = 25

Figure13. Soft Start Voltage

Figure 14. Drain Source Turn-on Resistance

Fig.13 Soft Start Voltage

0.85

0.9

0.95

1.05

1.1

1.15

-25

100 125 150

Vss

Fig.14 Drain Source Turn-on

Resistance

0.5

1.5

2.5

-25

75 100 125 150

Rdson

KA5H0380R/KA5M0380R/KA5L0380R

Ordering Information

TU : Non forming Type
YDTU :forming Type

Product Number

Package

Rating

Operating Temperature

KA5H0380R-TU

TO-220F-4L

800V, 3A

-25

C to +85

KA5H0380R-YDTU

TO-220F-4L(Forming)

KA5M0380R-TU

TO-220F-4L

800V, 3A

-25

C to +85

KA5M0380R-YDTU TO-220F-4L(Forming)

KA5L0380R-TU

TO-220F-4L

800V, 3A

-25

C to +85

KA5L0380R-YDTU

TO-220F-4L(Forming)

KA5H0380R/KA5M0380R/KA5L0380R

7/24/00 0.0m 001

Stock#DSxxxxxxxx

2000 Fairchild Semiconductor International

LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES

OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR

INTERNATIONAL. As used herein:

1. Life support devices or systems are devices or systems

which, (a) are intended for surgical implant into the body,

or (b) support or sustain life, and (c) whose failure to

perform when properly used in accordance with
instructions for use provided in the labeling, can be

reasonably expected to result in a significant injury of the

user.

2. A critical component in 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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ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: KA5L0380R-YDTU