UC3842N/D
OR UC3842BM
Function
Current mode PWM Controller.
Features
Low startup current (1ma). Automatic feed forward compensation. Pule-by pulse current
limiting. Enhanced load response characteristics. Under voltage lockout with
hysteretic. Double pulse suppression.
High current totem-plow output.
Internally trimmed band gap reference.
400KHz operation, guaranteed min.
Applications: offline switch mode power
supplies. DC-TO-DC converters.
PIN NO.
|
FUNCTION |
1
|
Comparator
|
2
|
Vfb
|
3
|
Current Sense
|
4
|
Rr/Cr
|
5
|
Ground (-ve supply voltage)
|
6
|
Output
|
7
|
Positive (+ve supply voltage)
|
8
|
Reference voltage
|
TEA 2261.
Function: SMPS control Ic. Switching pulse oscillator
& error amplifier.
Pin No
|
Function
|
Voltage
|
1
|
Ground
|
|
2
|
Ground
|
|
3
|
Ground
|
|
4
|
Ground
|
|
5
|
Ground
|
|
6
|
Error amplifier
|
2
|
7
|
Error amplifier
|
2
|
8
|
Capacitor
|
0
|
9
|
Capacitor
|
1.2
|
10
|
Capacitor
|
0.5
|
11
|
Protect
|
2
|
12
|
Ground
|
|
13
|
Ground
|
|
14
|
Switching pulse output
|
1
|
15
|
Positive supply
|
12
|
16
|
Positive supply
|
TDA 8330
Function: switch mode power supply control circuit.
A low current initialization circuit. A band gap
reference generator circuitry for slow start combined with an accurate setting
of the maximum duty factor (Dmax).
Programmable low supply voltage protection with on default value.
Pin No
|
Function
|
1
|
Emitter of Output Source
Transistor
|
2
|
Collector of Output Source
Transistor
|
3
|
Demagnetization sense input
|
4
|
Minimum Vcc threshold setting
|
5
|
Positive supply
|
6
|
Reference Current setting
|
7
|
Feedback input
|
8
|
Output error amplifier
|
9
|
Pulse width modulator input
|
10
|
Oscillator capacitor
|
11
|
Synchronization input
|
12
|
Maximum duty factor (Dmax)
setting plus slow start.
|
13
|
Input current protection
|
14
|
Ground
|
15
|
Emitter of output sink
transistor
|
16
|
Collector of output sink
transistor
|
SE115N/SE117/SE140N/SE105M/SE110
ERROR AMPLIFIER.
Pin No
|
Function
|
1
|
Voltage sensing input [Output
voltage Sample Input]
|
2
|
Output error amplifier
|
3
|
Ground
|
SE130NH/S1854-C1
Pin No
|
Function
|
1
|
Voltage sensing input
|
2
|
Output error amplifier
|
3
|
Ground
|
MC44603 [SMPS] CONTROL
Pin No
|
Function
|
Voltage
|
1
|
Passive supply [Vcc]
|
11/0.7
|
2
|
Vc
|
-
|
3
|
Switching pulse output
|
-
|
4
|
Ground
|
0
|
5
|
Foldb
|
-
|
6
|
Over voltage protector
|
-
|
7
|
-
|
-
|
8
|
-
|
-
|
9
|
Start supply
|
5.3/5.4
|
10
|
Decoupling capacitor
|
-
|
11
|
SS
|
1.3/1
|
12
|
Rp
|
-
|
13
|
EAout
|
-
|
14
|
Vib
|
16.4/16.3
|
15
|
Rj
|
-
|
16
|
Rref
|
-
|
TDA8133/TDA8138/KA7630
Function: Power on/off and
voltage regulator.
Pin No
|
Function
|
Voltage
|
|
On
|
Standby
|
||
1
|
Unregulated supply voltage
input
|
13.9
|
13.4
|
2
|
Unregulated supply voltage
input
|
13.3
|
13.4
|
3
|
Decoupling capacitor
|
3.11
|
3.11
|
4
|
Power on/off voltage input
from microprocessor
|
3.6
|
0.2
|
5
|
Ground
|
||
6
|
Reset voltage output
|
4.1
|
4.1
|
7
|
Not connected
|
||
8
|
Regulated supply output (1)
|
8
|
0.6
|
9
|
Regulated supply output (2)
|
5
|
5
|
10
|
Not connected
|
||
IX 1779CE
SMPS control Ic
Pin No
|
Function
|
Voltage
|
1
|
IS
|
0/0
|
2
|
IN
|
0/0
|
3
|
MAX
|
0/0
|
4
|
Ground
|
|
5
|
Ground
|
|
6
|
E
|
2.9/2.9
|
7
|
S
|
2.6/2.6
|
8
|
C3
|
9/10
|
9
|
C1
|
3/3
|
10
|
C4
|
2.5/2.5
|
11
|
RE
|
2.6/2.6
|
12
|
Ground
|
|
13
|
Ground
|
|
14
|
Drive out
|
1.4/1.7
|
15
|
Drive Cot
|
10.3/10.4
|
16
|
Positive supply
|
11.1/11.2
|
STR 54041S – SWITCHING REGULATOR
Pin
|
Function
|
1
|
Ref
|
2
|
Base drive
|
3
|
Supply input
|
4
|
Reg Control
|
5
|
Reg control
|
STR 44115 – DRIVE CONTROL SOFT STARTER SW REGULATOR
Pin
|
Function
|
Voltage
|
1
|
Detector
|
235
|
2
|
Drive control
|
115
|
3
|
--
|
300
|
4
|
--
|
115
|
5
|
Soft starter
|
--
|
STR 58041 – Base drive
Pin
|
Function
|
On condition voltage
|
Standby condition voltage
|
1
|
Vout sense(-)
|
90
|
0
|
2
|
Base drive(B_
|
90
|
0
|
3
|
Input
|
300
|
300
|
4
|
Ground
|
||
5
|
Vo.control
|
Adj
|
Adj
|
STR50112/STR50115B/STR50103 – BASE DRIVE
Pin
|
Function
|
On condition voltage
|
Standby condition voltage
|
1
|
Ground
|
||
2
|
Base drive
|
100
|
55
|
3
|
Input
|
500
|
400
|
4
|
Output
|
100
|
55
|
5
|
Vo. control
|
6.6
|
6.4
|
STR 50113-M – POWER SUPPLY
Pin
|
Function
|
1
|
Ground
|
2
|
Reference voltage
|
3
|
Unregulated DC
|
4
|
Control voltage
|
5
|
Output
|
STR 50215 - POWER
SUPPLY REGULATION
Pin
|
Function
|
1
|
Ground
|
2
|
Starting voltage
|
3
|
Unregulated DC input
|
4
|
Regulated output
|
5
|
Regulator switch
|
STR S6707N / STR S6708 / STR 6709 – POWER REGULATOR
Pin
|
Function
|
Voltage
|
1
|
Collector of switching
transistor inside the STR
|
300
|
2
|
Ground
|
|
3
|
Base of switching transistor
inside the STR
|
0.1
|
4
|
Sink
|
0.1
|
5
|
Drive
|
0.5
|
6
|
Over current protector [OCP]
|
0
|
7
|
Feedback
|
0.1
|
8
|
INH
|
1
|
9
|
Voltage input [supply]
|
9
|
STR S6307 / STR S6309 – POWER REGULATOR
Pin
|
Function
|
Voltage
|
1
|
Collector of switching
transistor inside Ic
|
400
|
2
|
Common [emitter of switching
transistor]
|
2.1
|
3
|
Base of switching transistor
inside Ic
|
3.2
|
4
|
Drive [voltage control]
|
0.4
|
5
|
Drive [voltage control]
|
20
|
6
|
Current detector
|
0
|
7
|
Ground
|
|
8
|
Drive [base error amp:]
|
3
|
9
|
Pulse modulation coupler
|
5.8
|
STR
10006: SUB POWER REGULATOR.
Pin
|
Function
|
1
|
Error voltage output
|
2
|
Base drive input
|
3
|
Collector of switching
transistor
|
4
|
Collector of error transistor
|
5
|
Ground
|
STR
5412; BASE DRIVE.
Pin
|
Function
|
On-condition voltage
|
Standby condition voltage
|
1
|
Input
|
310
|
300
|
2
|
Base drive
|
90
|
0
|
3
|
Ground
|
||
4
|
Output
|
90
|
0
|
5
|
Remote
|
30
|
0
|
STR
6020. POWER REGULATOR.
Pin
|
Function
|
Voltage
|
1
|
Unregulated voltage input
|
300
|
2
|
Feedback [output to input]
|
50
|
3
|
Error amplifier input
|
36
|
4
|
Switching signal output
|
50
|
5
|
Regulated power output
|
54
|
STR
F6654. POWER REGULATOR.
Pin
|
Symbol
|
Function
|
Voltage
|
|
ON
|
STANDBY
|
|||
1
|
OCP/FB
|
Over current protect feedback
|
1.89
|
1.63
|
2
|
SOURCE
|
Source of switching FET inside
STR
|
0.03
|
0
|
3
|
DRAIN
|
Drain of switching transistor
inside STR
|
325
|
330
|
4
|
Vin
|
Voltage input
|
16.6
|
14.9
|
5
|
GND
|
Ground
|
||
STR
456A. SWITCHING REGULATOR.
Pin
|
Function
|
Voltage
|
1
|
Switching regulator
|
296
|
2
|
Switching regulator
|
113
|
3
|
Ground
|
|
4
|
Switching
|
113
|
STR-D
1005T. SUB POWER REGULATOR.
Pin
|
Function
|
Voltage
|
1
|
Charging capacitor
|
5
|
2
|
Start bias input
|
0.2
|
3
|
Regulator
|
300
|
4
|
Ground
|
|
5
|
Feedback
|
0
|
STR 440.
ERROR AMPLIFIER DRIVE AND SWITCH.
Pin
|
Function
|
Voltage
|
1
|
Supply voltage
|
282
|
2
|
Ground
|
|
3
|
Switched regulated supply
voltage out
|
107.5
|
4
|
Switch
|
0.3
|
STR 441.
Pin
|
Function
|
Voltage
|
1
|
Switching
|
282
|
2
|
Switching
|
0
|
3
|
Error amplifier
|
107.5
|
4
|
Switching
|
0.28
|
STR
SMR40000. POWER REGULATOR.
Pin
|
Function
|
Voltage
|
1
|
PLIM
|
38mv
|
2
|
Gate
|
990mv
|
3
|
Drain
|
310v
|
4
|
Source
|
37mv
|
5
|
Feedback
|
-9.41v
|
STR
2SD680R / 3SD1265R. POWER REGULATOR.
Pin
|
Function
|
Voltage
|
1
|
Collector
|
278
|
2
|
Ground
|
|
3
|
Base drive
|
18
|
4
|
Control
|
0.7
|
5
|
Control
|
6.7
|
STR 370.
POWER REGULATOR.
Pin
|
Function
|
Voltage
|
1
|
Input supply
|
132
|
2
|
Regulated voltage out
|
109
|
3
|
Ground
|
|
4
|
Error amp. Onput [Ref.
Voltage]
|
110
|
STR371.
POWER REGULATOR.
Pin
|
Function
|
1
|
Regulator
|
2
|
Regulator drive
|
3
|
Error amplifier
|
4
|
Regulator
|
STR
50100. POWER REGULATOR.
Pin
|
Function
|
1
|
Ground
|
2
|
Base
|
3
|
Collector
|
4
|
Emitter
|
5
|
Control
|
STR 50213. POWER REGULATOR
Pin
|
Function
|
1
|
Ground
|
2
|
Base
|
3
|
Collector
|
4
|
Emitter
|
5
|
Control
|
STR
40115. POWER REGULATOR.
Pin
|
Function
|
1
|
Error amp input
|
2
|
Base drive
|
3
|
Collector
|
4
|
Output
|
5
|
Ground
|
STR
HM9207. BASE DRIVE.
Pin
|
Function
|
1
|
Input
|
2
|
Not connected
|
3
|
Positive bias
|
4
|
Base drive
|
5
|
Negative bias
|
6
|
Output
|
STR
56041. SWITCHING REGULATOR.
Pin
|
Function
|
1
|
Ref
|
2
|
Base drive
|
3
|
Collector
|
4
|
Emitter
|
5
|
Base
|
