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B3843 Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers

Part # B3843
Description  Current Mode PWM Controller
PDF  10 Pages
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Manufacturer  ETC [List of Unclassifed Manufacturers]
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B3843 Datasheet(HTML) 2 Page - List of Unclassifed Manufacturers

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Bay Linear, Inc 2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
B384X
Absolute Maximum Rating
Parameter
Symbol
Value
Unit
Supply Voltage
VCC
30
V
Output Current
IO
±1
A
Analog Input (pin 2,3)
V(ANA)
-0.3 to 6.3
V
Error Amp Output Sink Current
ISINK (E.A)
10
mA
Power Dissipation
PD
1
W
Storage Temperature Range
T
-65 to 150
°C
Lead Temperature (Soldering 10 Sec.)
TL
260
°C
Electrical Characteristics
(VCC = 15V;RT = 10Ω, CT = 3.3nF, TA=0 °C to +70°C, unless otherwise specified)
Parameter
Symbol
Conditions
MIN
TYP
MAX
UNIT
REFERENCE SECTION
Reference Voltage
VREF
TJ = 25 °C. IREF= 1mA
4.90
5.00
5.10
V
Line Regulation
REG (line)
12V
≤VCC≤25V
-
6
20
Load Regulation
REG
(LOAD)
1mA
≤IREF≤20mA
T= 25
°C
-
6
25
mA
Short Circuit Output
Current
ISC
T= 25
°C
-
-100
-180
mA
OSCILLATOR SECTION
Oscillator Frequency
f
T= 25
°C
47
52
57
KHz
Frequency Change with
Voltage
∆f/∆VCC
12V
≤VCC≤25V
-
0.05
1
%
Oscillator Amplitude
VOSC
-
1.6
-
VP-P
ERROR AMPLIFIER SECTION
Input Bias Current
IBIAS
-
-0.1
-2
µA
Input Voltage
VI(E>A)
V1 =2.5V
2.42
2.50
2.58
V
Open Loop Voltage Gain
GVO
2V
≤VO≤4V
65
90
-
dB
Power Supply Rejection
Ratio
PSRR
12V
≤VCC≤25V
60
70
-
dB
Output Sink Current
ISINK
V2 =2.7V, V1 =1.1V
2
7
-
mA
Output Source Current
ISOURCE
V2=2.3, V1=5V
-0.6
-1.0
-
mA
High Output Voltage
VOH
V2=2.3, RL= 15Ω to GND
5
6
-
V
Low Output Voltage
VOL
V2=2.7, RL= 15Ω to pin 8
-
0.8
1.1
V
OUTPUT SECTION
ISINK = 20mA
Low Output Voltage
VOL
ISINK = 200mA
-
0.08
1.4
0.4
2.2
V
Source = 20mA
High Output Voltage
VOH
Source = 200mA
13
12
13.5
13.0
-
-
V
Rise Time
tR
TJ = 25 °C, CL=1nF (note3)
-
45
150
ns
Fall Time
tF
TJ = 25 °C, CL=1nF (note3)
-
35
150
ns
Note: Output Switch tests are performed under pulsed conditions to minimize power dissipation



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