KA3842AMN データシートの表示（PDF） - Wing Shing International Group

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KA3842AMN

Linear integrated circuit

Wing Shing International Group 

KA3842A/KA3842AM

Electrical characteristics (*VCC=15V, RT=10kΩ, CT=3.3nF, TA=00C to +700C, unless

otherwise specified)

Characteristics

Reference Section

Reference Output Voltege

Line Regulation

Load Regulation

Short Circit Output Current

Oscillator Section

Oscillation Freguency

Frequency Change with

Voltage

Oscillator Amplitude

Error Amplifier Section

Input Bias Current

Input Voltage

Open Loop Voltage Gain

Power Supply Rejection Ratio

Output Sink Current

Output Source Current

High Output Voltage

Low Output Voltage

Current Sense Section

Gain

Maximum Input Signal

Power Supply Rejection Ratio

Input Bias Current

Output Section

Low Output Voltage

Symbol

VREF

∆VREF

∆VREF

ISC

f

∆f/∆VCCF

V(OSC)

IBIAS

VI(E.A)

GVO

PSRR

ISINK

ISOURCE

VOH

VOL

GV

VI(MAX)

PSRR

IBIAS

VOL

High Output Voltage

VOH

Rise Time

tR

Fall Time

tF

Under−Voltage Lockout Section

Start Theshold

VTH(ST)

Test Condition

TJ = 25°C, IREF = 1 mA

12V ≤ VCC ≤ 25 V

1 mA ≤ IREF ≤ 20mA

TA = 25°C

TJ = 25°C

12V ≤ VCC ≤ 25 V

V1 = 2.5V

2V ≤ V0 ≤ 4V

12V ≤ VCC ≤ 25 V

V2 = 2.7V, V1 = 1.1V

V2 = 2.3V, V1 = 5V

V2 = 2.3V, RL = 15KΩ to GND

V2 = 2.7V, RL = 15KΩ to PIN 8

(Note 1 & 2)

V1 = 5V (Note1)

12V ≤ VCC ≤ 25 V (Note 1)

ISINK = 20 mA

ISINK = 200 mA

ISINK = 20 mA

ISINK = 200 mA

TJ = 25°C, CL = 1nF (Note 3)

TJ = 25°C, CL = 1nF (Note 3)

Min

4.9

47

2.42

65

60

2

-0.5

5.0

2.85

0.9

13

12

14.5

Typ

5.0

6.0

6.0

-100

52

0.05

1.6

-0.1

2.5

90

70

7

-1.0

6.0

0.8

3.0

1.0

70

-3.0

0.08

1.4

13.5

13.0

45

35

16.0

Max

5.1

20

25

-180

57

1.0

-2

2.58

1.1

3.15

1.1

-10

0.4

2.2

Unit

V

mV

mA

KHz

%

Vp-p

µA

V

dB

mA

mA

V

V/V

V

dB

µA

V

150

nS

150

17.5

V

Min. Operating Voltage

(After Turn On)

PWM Section

Max. Duty Cycle

Min. Duty Cycle

Total Standby Current

Start−Up Current

VOPR(min)

D(MAX)

D(MAX)

IST

8.5

10

11.5

V

95

97

100

%

0

0.17

0.3

mA

Operating Supply Current

Zener Voltage

ICC (OPR)

VZ

V3 = V2 = 0V

14

17

30

38

V

* Adjust VCC above the start threshold before setting at 15V

Note 1: Parameter measured at trip point of lath with V2=0

Note 2: Gain defined as A=∆V1/∆V3 ; 0 ≤ V3 ≤ 0.8V

Note 3: These parameters, although guaranteed, are not 100% tested in production.

2

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