NTE1678 데이터 시트보기 (PDF) - NTE Electronics

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NTE1678

Integrated Circuit Switching Regulator for TV

NTE Electronics 

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

Parameter

Symbol

Test Conditions

Min Typ Max Unit

High Level of Oscillation

Starting VOH

Thermal Drift of VOH

Synchronous Signal Voltage

VOH

VOH(s)

dVOH(TA)

VS

V8 = 3.0V

Difference of Min & Max of VOH

in TA from –20° to+75°C

Oscillation is Synchronizing (15.75kHz)

Oscillation is Synchronizing (15.75kHz)

– 3.8 4.5 V

1.0 1.8 –

V

–

– 100 mV

–1.0 – +0.3 V

–200 –40 – µA

Pin Connection Diagram

Error Voltage Input 1

Duty Limit 2

ON/OFF Output 3

ON/OFF Input 4

Current Limit 5

14 Reference Voltage Input

13 Error Amp Output

12 Comparator Input

11 OSC

10 Synchronization

Shutdown 6

Pulse Output 7

9 GND

8 VCC

14

8

1

7

.827 (21.0) Max

.100 (2.45)

.600 (15.24)

.100 (2.54)

.025

(0.65)

.197

(5.0)

Max

.300 (7.62)

.099 (2.5) Min

.099

(2.5)

.012

(0.30)

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