NTE7117 데이터 시트보기 (PDF) - NTE Electronics

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NTE7117

Integrated Circuit Switched–Mode Power Supply Controller

NTE Electronics 

DC Electrical Characteristics (Cont’d): (VCC = 12V, TA = +25°C unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Current Limiting

Input Current

Single Pulse Inhibit Delay

Current Limit Trip Level

IIN Pin6 = 250mV

TA = +25°C

– –2 –10 µA

TA = 0° to +70°C –

– –20 µA

Inhibit Delay Time IOUT = 20mA

for 20% Overdrive IOUT = 40mA

– 0.88 1.10 µs

– 0.7 0.8 µs

0.4 0.5 0.6

V

Error Amplifier

Open–Loop Gain

– 60 –

dB

Feedback Resistor

10k –

–

Ω

Small–Signal Bandwidth

BW

–

3

– MHz

Output Voltage Swing, High

VOH

Output Voltage Swing, Low

VOL

Output Stage

6.2 –

–

V

–

– 0.7

V

Output Current

Saturation Voltage

Supply Voltage/Current

IOUT TA = 0° to +70°C

VCE TA = 0° to +70°C IC = 20mA

IC = 40mA

20 –

–

mA

–

– 0.4

V

–

– 0.5

V

Supply Current

Supply Voltage

Low Supply Protection

ICC IZ = 0,

Voltage–Fed

TA = +25°C

–

TA = 0° to +70°C –

– 10 mA

– 13 mA

VCC IS = 10mA, Current–Fed

19 21 24

V

ICC = 30mA, Current–Fed

20 – 30

V

Pin1 Threshold

8.0 9.0 10.5 V

Pin Connection Diagram

VCC 1

VZ 2

Feedback 3

Gain 4

8 GND

7 Output

6 Current Sense

5 RT, CT

8

5

.256 (6.52) Max

1

4

.393 (10.0)

Max

.150

(3.81)

.300

(7.62)

.100

(2.54)

.300 (7.62)

.070 (1.77) Min

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