NTE7154 데이터 시트보기 (PDF) - NTE Electronics

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NTE7154

Integrated Circuit Control Circuit for Switch Mode Power Supplies using MOS Transistors

NTE Electronics 

Electrical Characteristics (Cont’d): (VCC = 10V, TA = +25°C unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Protection Circuit

Undervoltage Protection for V6:

Voltage at Pin5 = V5(min) if V6 < V6(Min)

Overvoltage Protection for V6:

Voltage at Pin5 = V5(min) if V6 > V6(Min)

Undervoltage Protection for VAC:

Voltage at Pin5 = V5(min) if V3 < V3A

Over Temperature: At the given chip temperature

the IC will switch V5 to V5(Min)

Voltage at Pin3 if one of the protection functions

was triggered; (V3 will be clamped until

V6 < V6A)

Current Drain During Burst Operation

V6(Min)

V6(Max)

V3A V2 = 0V

Oj

V3Sat I3 = 750µA

I6

V3 = V2 = 0V

7.00 7.25 7.50 V

15.0 16.0 16.5 V

970 1005 1040 mV

– 150 – °C

– 0.4 0.8 V

–

8

– mA

Pin Connection Diagram

Regulation Input 1

Primary Current Simulation 2

Primary Voltage Monitoring 3

GND 4

8 Zero Crossing Detector Input

7 Soft–Start

6 Supply Voltage

5 Output

8

5

.260 (6.6) Max

1

4

.430 (10.92)

Max

.200

(5.08)

.300 (7.62)

.100 (2.54)

.300 (7.62)

.125 (3.18) Min

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