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3842 View Datasheet(PDF) - Estek Electronics Co. Ltd

Part Name
Description
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3842 Datasheet PDF : 7 Pages
1 2 3 4 5 6 7
Electrical characteristics
(*VCC=15V, RT=10k, CT=3.3nF, TA=00C to +700C, unless otherwise specified)
Characteristics
Symbol
Test Conditions
Reference Section
Reference Output Voltage
Line Regulation
Load Regulation
Short Circuit Output Current
Oscillator Section
VREF
VREF
VREF
ISC
TJ = 25°C, IREF = 1 mA
12V VCC 25 V
1 mA IREF 20mA
TA = 25°C
Oscillation Frequency
f
TJ = 25°C
MIK384XA
MIK384XAM
Frequency Change with Voltage
Oscillator Amplitude
Error Amplifier Section
f/VCC
V(OSC)
12V VCC 25 V
(peak to peak)
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
IBIAS
VI(E.A)
AVOL
PSRR
ISINK
ISOURCE
VOH
VOL
VFB=3V
Vpin1 = 2.5V
2V V0 4V
12V VCC 25 V
Vpin2 = 2.7V, Vpin1 = 1.1V
Vpin2 = 2.3V, Vpin1 = 5V
Vpin2 = 2.3V, RL = 15Kto GND
Vpin2 = 2.7V, RL = 15Kto PIN 8
Gain
Maximum Input Signal
Supply Voltage Rejection
Input Bias Current
Output Section
GV
VI(MAX)
SVR
IBIAS
(Note 1 & 2)
V pin1 = 5V (Note1)
12V VCC 25 V (Note 1)
Vpin3 = 3V
Low Output Voltage
High Output Voltage
Rise Time
VOL
ISINK = 20 mA
ISINK = 200 mA
VOH
ISINK = 20 mA
ISINK = 200 mA
tR
TJ = 25°C, CL = 1nF (Note 3)
Fall Time
Undervoltage Lockout Section
tF
TJ = 25°C, CL = 1nF (Note 3)
Start Theshold
Min. Operating Voltage
(After Turn On)
VTH(ST)
VOPR(min)
MIK3842A(AM)/44A(AM)
MIK3843A(AM)/45A(AM)
MIK3842A(AM)/44A(AM)
MIK3843A(AM)/45A(AM)
PWM Section
Max. Duty Cycle
D(MAX)
MIK3842A(AM)/43A(AM)
MIK3844A(AM)/45A(AM)
Min. Duty Cycle
D(MAX)
Total Standby Current
StartUp Current
IST
MIK384XA(AM)
Operating Supply Current
ICC (OPR)
Vpin3 = Vpin2 = 0V
Zener Voltage
VZ
ICC=25 mA
* - Adjust VCC above the start threshold before setting it to 15V.
Note 1: Parameter measured at trip point of latch with Vpin2=0.
Note 2: Gain defined as A=Vpin1/Vpin3 ; 0 Vpin3 0.8V.
Note 3: These parameters, although guaranteed, are not 100% tested in production.
Min
4.9
47
47
2.42
65
60
2
-0.5
5.0
2.85
0.9
13
12
14.5
7.8
8.5
7.0
95
47
30
Typ
5.0
6.0
6.0
-100
50
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
8.4
10
7.6
97
48
0.17
13
38
Max Units
5.1
V
20
mV
25
-180
mA
57
KHz
57
1.0
%
V
-2
µA
2.58
V
dB
mA
mA
V
1.1
3.15
V/V
1.1
V
dB
-10
µA
0.4
2.2
V
150
nS
150
17.5
V
9.0
11.5
V
8.2
100
50
%
0
0.3
mA
17
V
BEIJING ESTEK ELECTRONICS CO.,LTD
2
 

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