L5993D 查看數據表（PDF） - STMicroelectronics
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L5993D Datasheet PDF : 22 Pages
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L5993
ELECTRICAL CHARACTERISTICS (VCC = 15V; Tj = 0 to 105°C; RT = 13.3kΩ; CT = 1nF
unless otherwise specified.)
Symbol
Parameter
REFERENCE SECTION
VRef
Output Voltage
Line Regulation
Load Regulation
TS
Temperature Stability
Total Variation
IOS
Short Circuit Current
Power Down/UVLO
OSCILLATOR SECTION
Initial Accuracy
Duty Cycle
Duty Cycle
Duty Cycle Accuracy
Oscillator Ramp Peak
Oscillator Ramp Valley
ERROR AMPLIFIER SECTION
Input Bias Current
VI
Input Voltage
GOPL
Open Loop Gain
SVR
Supply Voltage Rejection
VOL
Output Low Voltage
VOH
Output High Voltage
IO
Output Source Current
Output Sink Current
Unit Gain Bandwidth
SR
Slew Rate
PWM CURRENT SENSE SECTION
Ib
Input Bias Current
IS
Maximum Input Signal
Delay to Output
Gain
SOFT START
ISSC
SS Charge Current
ISSD
SS Discharge Current
VSSSAT SS Saturation Voltage
VSSCLAMP SS Clamp Voltage
LEADING EDGE BLANKING
Internal Masking Time
OUTPUT SECTION
VOL
Output Low Voltage
VOH
Output High Voltage
VOUT CLAMP Output Clamp Voltage
Test Condition
Min. Typ. Max. Unit
Tj = 25°C; IO = 1mA
VCC = 12 to 20V; Tj = 25°C
IO = 1 to 10mA; Tj = 25°C
Line, Load, Temperature
Vref = 0V
VCC = 8.5V; Isink = 0.5mA
4.925 5.0 5.075 V
2.0
10
mV
2.0
10
mV
0.4
mV/°C
4.80 5.0 5.130 V
30
150 mA
0.2
0.5
V
pin 15 = Vref
Tj = 25°C 95
VCC = 12 to 20V 93
100 105 kHz
100 107 kHz
pin 3 = 0,7V, pin 15 = Vref
pin 3 = 0.7V, pin 15 = OPEN
0
%
0
%
pin 3 = 3.2V, pin 15 = Vref
47
%
pin 3 = 3.2V, pin 15 = OPEN
93
%
pin 3 = 2.79V, pin 15 = OPEN
75
80
85
%
2.8
3.0
3.2
V
0.75 0.9 1.05
V
VFB to GND
VCOMP = VFB
VCOMP = 2 to 4V
VCC = 12 to 20V
Isink = 2mA, VFB = 2.7V
Isou rce = 0.5mA, VFB = 2.3V
VCOMP > 4V, VFB = 2.3V
VCOMP > 1.1V, VFB = 2.7V
0.2
3.0
µA
2.42 2.5 2.58
V
60
90
dB
85
dB
1.1
V
5
6
V
0.5
1.3
2.5
mA
2
6
mA
1.7
4
MHz
8
V/µs
Isen = 0
VCOMP = 5V
3
15
µA
0.92 1.0 1.08
V
70
100
ns
2.85
3
3.15 V/V
VSS = 0.6V, Tj = 25°C
DC = 0%
14
20
26
µA
5
10
15
µA
0.6
V
7
V
100
ns
IO = 250mA
IO = 20mA; VCC = 12V
IO = 200mA; VCC = 12V
IO = 5mA; VCC = 20V
1.0
V
10 10.5
V
9
10
V
13
V
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