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Fairchild
Fairchild

KA5M0380R-TU Datasheet

SPS consist of high voltage power SenseFET and current mode PWM IC


KA5M0380R-TU Datasheet Preview


www.fairchildsemi.com
KA5H0380R/KA5M0380R/KA5L0380R
SPS
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
Internal Block Diagram
1. GND 2. DRAIN 3. VCC 4. FB
Vcc
FB
5 uA
UVLO
9V
1 mA
2.5R
1R
5V
Vref
OSC
_
+
GOOD
LOGIC
INTERNAL
BIAS
S
Q
R
L.E.B
SFET
7.5V
+
_
27V
+
_
THERMAL S/D
S
Q
R
Rsens
POWER ON RESET
©2000 Fairchild Semiconductor International
DRAIN
GND
Rev. .5.0
Page 1

KA5H0380R/KA5M0380R/KA5L0380R
Absolute Maximum Ratings
Characteristic
Drain-source (GND) voltage (1)
Symbol
VDSS
Drain-Gate voltage (RGS=1M)
VDGR
Gate-source (GND) voltage
Drain current pulsed (2)
Single pulsed avalanche energy (3)
Avalanche current (4)
VGS
IDM
EAS
IAS
Continuous drain current (TC=25°C)
ID
Continuous drain current (TC=100°C)
ID
Supply voltage
VCC
Analog input voltage range
VFB
Total power dissipation
PD (watt H/S)
Derating
Operating temperature
TOPR
Storage temperature
TSTG
Notes:
1. Tj=25°C to 150°C
2. Repetitive rating: Pulse width limited by maximum junction temperature
3. L=51mH, starting Tj=25°C
4. L=13µH, starting Tj=25°C
Value
800
800
±30
12
95
10
3.0
2.1
30
0.3 to VSD
35
0.28
25 to +85
55 to +150
Unit
V
V
V
ADC
mJ
A
ADC
ADC
V
V
W
W/°C
°C
°C
2
Page 2

KA5H0380R/KA5M0380R/KA5L0380R
Electrical Characteristics (SFET part)
(Ta = 25°C unless otherwise specified)
Characteristic
Drain-source breakdown voltage
Zero gate voltage drain current
Static drain-source on resistance (note)
Forward transconductance (note)
Input capacitance
Output capacitance
Reverse transfer capacitance
Turn on delay time
Rise time
Turn off delay time
Fall time
Total gate charge
(gate-source+gate-drain)
Gate-source charge
Gate-drain (Miller) charge
Symbol
BVDSS
IDSS
RDS(ON)
gfs
Ciss
Coss
Crss
td(on)
tr
td(off)
tf
Qg
Qgs
Qgd
Test condition
VGS=0V, ID=50µA
VDS=Max., Rating,
VGS=0V
VDS=0.8Max., Rating,
VGS=0V, TC=125°C
VGS=10V, ID=0.5A
VDS=50V, ID=0.5A
VGS=0V, VDS=25V,
f=1MHz
VDD=0.5BVDSS, ID=1.0A
(MOSFET switching
time are essentially
independent of
operating temperature)
VGS=10V, ID=1.0A,
VDS=0.5BVDSS (MOSFET
switching time are
essentially independent of
operating temperature)
Min.
800
1.5
Typ. Max. Unit
−−V
250 µA
1000
4
2.5
779
75.6
24.9
40
95
150
60
5
34
7.2
12.1
µA
S
pF
nS
nC
Note:
Pulse test: Pulse width < 300µS, duty < 2%
S = -1--
R
3
Page 3

KA5H0380R/KA5M0380R/KA5L0380R
Electrical Charcteristics (SFET part) (Continued)
(Ta = 25°C unless otherwise specified)
Characteristic
REFERENCE SECTION
Output voltage (1)
Temperature Stability (1)(2)
OSCILLATOR SECTION
Initial accuracy
Initial accuracy
Initial accuracy
Frequency change with temperature (2)
PWM SECTION
Maximum duty cycle
Symbol
Vref
Vref/T
FOSC
FOSC
FOSC
Dmax
Maximum duty cycle
Dmax
FEEDBACK SECTION
Feedback source current
IFB
Shutdown delay current
Idelay
OVER CURRENT PROTECTION SECTION
Over current protection
IL(max)
UVLO SECTION
Start threshold voltage
Vth(H)
Minimum operating voltage
Vth(L)
TOTAL STANDBY CURRENT SECTION
Start current
IST
Operating supply current
(control part only)
IOPR
SHUTDOWN SECTION
Shutdown Feedback voltage
Thermal shutdown temperature (Tj) (1)
VSD
TSD
Over voltage protection
VOVP
Test condition
Ta=25°C
25°CTa+85°C
KA5H0380R
KA5M0380R
KA5L0380R
25°CTa+85°C
KA5H0380R
KA5M0380R
KA5L0380R
Ta=25°C, 0V<Vfb<3V
Ta=25°C, 5VVfbVSD
Max. inductor current
After turn on
VCC=14V
VCC<28
Vfb>6.5V
VCC>24V
NOTE:
1. These parameters, although guaranteed, are not 100% tested in production
2. These parameters, although guaranteed, are tested in EDS(water test) process
Min. Typ. Max. Unit
4.80
5.00
0.3
5.20 V
0.6 mV/°C
90 100 110 kHz
61 67 73 kHz
45 50 55 kHz
− ±5 ±10 %
62 67 72
72 77 82
%
%
0.7 0.9 1.1 mA
4 5 6 µA
1.89 2.15 2.41 A
8.4 9 9.6
14 15 16
V
V
0.1 0.17 mA
7 12 mA
6.9 7.5 8.1
140 160
25 27 29
V
°C
V
4
Page 4
Part Number KA5M0380R-TU
Manufactur Fairchild
Description SPS consist of high voltage power SenseFET and current mode PWM IC
Total Page 14 Pages
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