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UC1572J Datasheet(Fiches technique) 2 Page - Texas Instruments

Numéro de pièce UC1572J
Description  Negative Output Flyback Pulse Width Modulator
Télécharger  9 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

UC1572J Datasheet(HTML) 2 Page - Texas Instruments

  UC1572J Datenblatt HTML 1Page - Texas Instruments UC1572J Datasheet HTML 2Page - Texas Instruments UC1572J Datenblatt HTML 3Page - Texas Instruments UC1572J Datenblatt HTML 4Page - Texas Instruments UC1572J Datenblatt HTML 5Page - Texas Instruments UC1572J Datenblatt HTML 6Page - Texas Instruments UC1572J Datenblatt HTML 7Page - Texas Instruments UC1572J Datenblatt HTML 8Page - Texas Instruments UC1572J Datenblatt HTML 9Page - Texas Instruments  
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UC1572
UC2572
UC3572
ABSOLUTE MAXIMUM RATINGS
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V
EAINV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.6V to VCC
IEAOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25mA
RAMP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 4V
CS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VCC
Iout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.7A to 0.7A
I3VREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -15mA
Storage Temperature . . . . . . . . . . . . . . . . . . . -65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . -65°C to +150°C
Lead Temperature (Soldering, 10 sec.) . . . . . . . . . . . . . +300°C
Currents are positive into, negative out of the specified
terminal. Consult Packaging Section of Databook for thermal
limitations and considerations of packages.
DIL-8, SOIC-8 (TOP VIEW)
D, N or J Packages
CONNECTION DIAGRAM
TEMPERATURE RANGE
PACKAGE
UC1572
–55°C to +125°C
J
UC2572
–40°C to +85°C
D, N or J
UC3572
0°C to +70°C
D or N
ORDERING INFORMATION
ELECTRICAL CHARACTERISTICS: Unless otherwise specified, VCC = 5V, CT = 680pF, TA =TJ.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Reference Section
3VREF
2.94
3
3.06
V
Line Regulation
VCC = 4.75 to 30V
1
10
mV
Load Regulation
I3VREF = 0V to –5mA
1
10
mV
Oscillator Section
Frequency
VCC = 5V to 30V
85
100
115
kHz
Error Amp Section
EAINV
EAOUT = 2V
–10
0
10
mV
IEANV = –1mA
–0.2
–0.9
V
IEAINV
EAOUT = 2V
–0.2
–1.0
A
AVOL
EAOUT = 0.5V to 3V
65
90
dB
EAOUT High
EAINV = –100mV
3.6
4
4.4
V
EAOUT Low
EAINV = 100mV
0.1
0.2
V
IEAOUT
EAINV = –100mV, EAOUT = 2V
–350
–500
µA
EAINV = 100mV, EAOUT = 2V
7
20
mA
Unity Gain Bandwidth
TJ = 25°C, F = 10kHz
0.6
1
MHz
Current Sense Comparator Section
Threshold
0.185
0.205
0.225
V
Input Bias Current
CS = 0
–0.4
–1
µA
CS Propogation Delay
300
nS


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