L5991AD13TR Datasheet, PDF (3/23 Pages) STMicroelectronics – PRIMARY CONTROLLER WITH STANDBY

L5991 - L5991A
ELECTRICAL CHARACTERISTICS (VCC = 15V; Tj = 0 to 105°C; R_T = 13.3kΩ (*) C_T = 1nF;
unless otherwise specified.)
Symbol
Parameter
REFERENCE SECTION
V_REF
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 Accuracy
Oscillator Ramp Peak
Oscillator Ramp Valley
ERROR AMPLIFIER SECTION
Input Bias Current
V_I
G_OPL
SVR
Input Voltage
Open Loop Gain
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
I_b
Input Bias Current
IS
Maximum Input Signal
Delay to Output
Gain
V_t
Fault Threshold Voltage
SOFT START SECTION
I_SSC
SS Charge Current
ISSD
SS Discharge Current
V_SSSAT SS Saturation Voltage
V_SSCLAMP SS Clamp Voltage
LEADING EDGE BLANKING
Internal Masking Time
OUTPUT SECTION
V_OL
Output Low Voltage
V_OH
Output High Voltage
V_{OUT CLAMP} Output Clamp Voltage
Collector Leakage
(*) RT = RA//RB, RA = RB = 27kΩ, see Fig. 23.
Test Condition
Min.
Tj = 25°C; I_O = 1mA
V_CC = 12 to 20V; T_j = 25°C
I_O = 1 to 10mA; T_j = 25°C
4.925
Line, Load, Temperature
Vref = 0V
V_CC = 6V; I_sink = 0.5mA
4.80
30
pin 15 = Vref; T_j = 25°C; V_comp = 4.5V
pin 15 = Vref; VCC = 12 to 20V
V_comp = 4.5V
pin 15 = Vref; V_CC = 12 to 20V
V_comp = 2V
pin 3 = 0,7V, pin 15 = V_REF
pin 3 = 0.7V, pin 15 = OPEN
pin 3 = 3.2V, pin 15 = V_REF
pin 3 = 3.2V, pin 15 = OPEN
pin 3 = 2.79V, pin 15 = OPEN
95
93
46.5
47
93
75
2.8
0.75
V_FB to GND
VCOMP = VFB
VCOMP = 2 to 4V
VCC = 12 to 20V
I_sink = 2mA
I_source = 0.5mA, V_FB = 2.3V
VCOMP > 4V, V_FB = 2.3V
VCOMP = 1.1V, V_FB = 2.7V
2.42
60
5
0.5
2
1.7
I_sen = 0
VCOMP = 5V
Tj = 25°C
VSS = 0.6V Tj = 25°C
DC = 0%
0.92
2.85
1.1
14
5
I_O = 250mA
I_O = 20mA; VCC = 12V
10
I_O = 200mA; VCC = 12V
9
I_O = 5mA; VCC = 20V
VCC = 20V VC = 24V
Typ.
5.0
2.0
2.0
0.4
5.0
0.2
100
100
50
80
3.0
0.9
0.2
2.5
90
85
6
1.3
6
4
8
3
1.0
70
3
1.2
20
10
7
100
10.5
10
13
2
Max. Unit
5.075
10
10
5.130
150
0.5
V
mV
mV
mV/°C
V
mA
V
105 kHz
107 kHz
53.5 kHz
0
%
0
%
%
%
85
%
3.2
V
1.05
V
3.0
µA
2.58
V
dB
dB
1.1
V
V
2.5
mA
mA
MHz
V/µs
15
µA
1.08
V
100
ns
3.15 V/V
1.3
V
26
µA
15
µA
0.6
V
V
ns
1.0
V
V
V
V
20
µA
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