NTE7098 데이터 시트보기 (PDF) - NTE Electronics

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NTE7098

Integrated Circuit Current Mode Pulse Width Modulator (PWM) Control Circuit

NTE Electronics 

Elecrtrical Characteristics: (0° ≤ TA ≤ +70°C, VCC = 15V, RT = 10K, CT = 3.3nF for sawtooth

mode, Note 1 unless otherwise specified)

Parameter

Test Conditions

Min Typ Max Unit

Reference Section

Output Voltage

Line Regulation

Load Regulation

Temperature Stability

TJ = +25°C, IREF = 1mA

12V ≤ VIN ≤ 25V

1mA ≤ IREF ≤ 20mA

Note 2

4.9 5.0 5.1

V

–

6 20 mV

–

6 25 mV

– 0.2 0.4 mV/°C

Total Output Variation

Line, Load, Temperature, Note 2

4.82 – 5.18 V

Output Noise Voltage

Long Term Stability

Output Short Circuit

Oscillator Section

10Hz ≤ f ≤ 10kHz, TJ = +25°C, Note 2

TA = +125°C, 1000Hrs., Note 2

TA = +25°C

–

50

–

µV

–

5 25 mV

–30 –100 –180 mA

Initial Accuracy

Voltage Stability

Temperature Stability

Amplitude

Error Amp Section

Sawtooth Mode, TJ = +25°C

12V ≤ VCC ≤ 25V

Sawtooth Mode, 0° ≤ TA ≤ +70°C, Note 2

VPIN4 peak to peak

47 52 57 kHz

– 0.2 1.0

%

–

5

–

%

– 1.7 –

V

Input Voltage

Input Bias Current

AVOL

Unity Gain Bandwidth

VCOMP = 2.5V

VFB = 0V

2V ≤ VO ≤ 4V

Note 2

2.42 2.50 2.58

– –0.3 –2.0

65 90

–

0.7 1.0 –

V

µA

dB

MHz

PSRR

Output Sink Current

Output Source Current

VOUT High

VOUT Low

Current Sense Section

12V ≤ VCC ≤ 25V

VFB = 2.7V, VCOMP = 1.1V

VFB = 2.3V, VCOMP = 5V

VFB = 2.3V, RL = 15K to GND

VFB = 2.7V, RL = 15K to Pin8

60 70

–

dB

2

6

–

mA

–0.5 –0.8 –

mA

5

6

–

V

– 0.7 1.1

V

Gain

Note 3, Note 4

2.85 3.00 3.15 V/V

Maximum Input Signal

PSRR

Input Bias Current

Delay to Output

Output Section

VCOMP = 5V, Note 3

12V ≤ VCC ≤ 25V, Note 3

VSENSE = 0V

TJ = +25°C, Note 2

0.9 1.0 1.1

V

–

70

–

dB

–

–2 –10 µA

– 150 300 ns

Output Low Level

Output High Level

Rise Time

Fall Time

Total Standby Current

ISINK = 20mA

ISINK = 200mA

ISOURCE = 20mA

ISOURCE = 200mA

TJ = +25°C,CL = 1nF, Note 2

TJ = +25°C,CL = 1nF, Note 2

– 0.1 0.4

V

– 1.5 2.2

V

13.0 13.5 –

V

12.0 13.5 –

V

–

50 150

ns

–

50 150

ns

Start–Up Current

– 0.5 1.0 mA

Operating Supply Current

VCC Zener Voltage

PWM Section

VFB = VSENSE = 0V, RT = 10K, CT = 3.3nF

ICC = 25mA

–

11 17

mA

–

34

–

V

Maximum Duty Cycle

46 48 50

%

Minimum Duty Cycle

–

–

0

%

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