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LM5030 Datasheet(PDF) 5 Page - Texas Instruments

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Part # LM5030
Description  100V Push-Pull Current Mode PWM Controller
PDF  19 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM5030 Datasheet(HTML) 5 Page - Texas Instruments

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LM5030
www.ti.com
SNVS215B – MAY 2004 – REVISED MARCH 2005
Electrical Characteristics (continued)
Specifications in standard type face are for TJ= +25°C and those in boldface type apply over the full operating junction
temperature range. Unless otherwise specified: VIN = 48V, VCC = 10V, and RT = 26.7KΩ
Symbol
Parameter
Conditions
Min(1)
Typ(2)
Max(1)
Units
Error Amplifier
GBW
Gain Bandwidth
4
MHz
DC Gain
75
dB
Input Voltage
VFB = COMP
1.220
1.245
1.270
V
COMP Sink Capability
VFB = 1.5V COMP= 1V
5
13
mA
Current Limit
CS1
Cycle by Cycle CS Threshold
0.45
0.5
0.55
V
Voltage
CS2
Restart CS Threshold Voltage
Resets SS capacitor; auto
0.575
0.625
0.675
V
restart
ILIM Delay to Output
CS step from 0 to 0.6V
30
ns
Time to onset of OUT
Transition (90%)
Cload = 0
CS Sink Current (clocked)
CS = 0.3V
3
6
mA
Soft Start/Shutdown
Softstart Current Source
7
10
13
µA
Softstart to COMP Offset
0.25
0.5
0.75
V
Shutdown Threshold
0.2
0.45
0.7
V
Oscillator
Frequency1 (RT = 26.7K)
175
200
225
kHz
Frequency2 (RT = 8.2K)
510
600
690
kHz
Sync threshold
3.2
3.8
V
PWM Comparator
Delay to Output
COMP set to 2V CS
30
ns
stepped 0 to 0.4V, Time to
onset of OUT transition low
Max Duty Cycle
Inferred from deadtime
47.5
49
50
%
Min Duty Cycle
COMP=0V
0
%
COMP to PWM Comparator Gain
0.34
COMP Open Circuit Voltage
VFB = 0V
4.3
5.2
6.1
V
COMP Short Circuit Current
VFB = 0V, COMP=0V
0.6
1.1
1.5
mA
Slope Compensation
Slope Comp Amplitude
Delta increase at PWM
80
105
130
mV
Comparator to CS
Output Section
Deadtime
Cload = 0, 10% to 10%
85
135
185
ns
Output High Saturation
Iout = 50mA, VCC - VOUT
0.25
0.75
V
Output Low Saturation
IOUT = 100mA
0.25
0.75
V
Rise Time
Cload = 1nF
16
ns
Fall Time
Cload = 1nF
16
ns
Thermal Shutdown
Tsd
Thermal Shutdown Temp.
165
°C
Thermal Shutdown Hysteresis
15
°C
Copyright © 2004–2005, Texas Instruments Incorporated
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