NTE7154 NTE ELECTRONICS, NTE7154 Datasheet
NTE7154
Manufacturer Part Number
NTE7154
Description
Replacement Semiconductors IC-PWR SUPPLY CONTROL
Manufacturer
NTE ELECTRONICS
Datasheet
1.NTE7154.pdf
(3 pages)
Specifications of NTE7154
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Description:
The NTE7154 is an integrated circuit in an 8–Lead DIP type package which controls the MOS power
transistor and performs all necessary regulation and monitoring functions in free running flyback con-
verters. Since good load regulation over a wide load range is attained, this device is particularly suit-
able for consumer as well as industrial power supplies.
Features:
D Fold–Back Characteristic Provides Overload Protection for External Diodes
D Burst Operation Under Short–Circuit and No Load Conditions
D Loop Error Protection
D Switch–Off In Case of Too Low Line Voltage (Under Voltage Switch–Off)
D Line Voltage Compensation of Overload Point
D Soft–Start for Smooth Start–Up
D Chip Over–Temperature Protection (Thermal Shutdown)
D On–Chip Parasitic Transformer Oscillation Suppression Circuitry
D Decrease of Regulated Voltage for Low Power Consumption
Absolute Maximum Ratings:
Supply Voltage (Pin1), V
Supply Voltage (Pin2, Pin3, Pin4, Pin7), V
Supply Voltage (Pin6), V
Supply Current (Pin1, Pin2, Pin3, Pin7), I
Supply Current (Pin4, Note 1), I
Supply Current (Pin5, Note 1), I
Supply Current (Pin6, Note 1), I
Supply Current (Pin8), I
Operating Junction Temperature, T
Ambient Temperature Range, T
Storage Temperature Range, T
Thermal Resistance, Junction–to–Ambient, R
Thermal Resistance, Junction–to–Case, R
Note 1. t
p
50 s, V
Control Circuit for Switch Mode Power Supplies
0.1.
8
1
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
A
4
5
6
using MOS Transistors
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Integrated Circuit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
2
, I
thJC
NTE7154
, V
2
, I
thJA
3
, V
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
, I
4
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–40 to +125 C
–20 to +85 C
–0.3 to +3.0V
–0.5 to +1.5A
–0.3 to +20V
–3 to +3mA
85 C/W
45 C/W
+125 C
–0.3V
–1.5A
3mA
0.5A
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NTE7154 Summary of contents
Page 1
... Control Circuit for Switch Mode Power Supplies Description: The NTE7154 is an integrated circuit in an 8–Lead DIP type package which controls the MOS power transistor and performs all necessary regulation and monitoring functions in free running flyback con- verters. Since good load regulation over a wide load range is attained, this device is particularly suit- able for consumer as well as industrial power supplies ...
Page 2
Electrical Characteristics: (V Parameter Start–Up Hysteresis Start–Up Current Drain Switch–On Voltage Switch–Off Voltage Switch–On Current Switch–Off Current Voltage Clamp (V = 10V, IC Switched Off Pin2 (V < Pin3 (V < ...
Page 3
Electrical Characteristics (Cont’d): (V Parameter Protection Circuit Undervoltage Protection for Voltage at Pin5 = 5(min) Overvoltage Protection for Voltage at Pin5 = 5(min) Undervoltage Protection for V AC ...