L5991A STMicroelectronics, L5991A Datasheet - Page 3

• Manufacturer Part Number: L5991A
• Description: IC CTRLR PRIMARY BCD 16-DIP
• Manufacturer: STMicroelectronics

Specifications of L5991A

• Mfg Application Notes: 25W Off-Line Battery Charger with L5991A AppNote 300W Forward Converter with L5991A AppNote 45W AC-DC Adapter with Standby AppNote 60W Power Supply using the L5991 AppNote 80W Adapter using L6561/L5991A AppNote 90W SMPS for Monitors with Standby AppNote Trick Enhances L5991s Standby Function AppNote L5991-Based Converter, Temp Extra Power AppNote Auxiliary Power Supply Design AppNote Minimize Power Losses AppNote
• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 1MHz
• Duty Cycle: 93%
• Voltage - Supply: 8.2 V ~ 20 V
• Buck: No
• Boost: Yes
• Flyback: Yes
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: 0°C ~ 105°C
• Package / Case: 16-DIP (0.300", 7.62mm)
• Frequency-max: 1MHz
• Duty Cycle (max): 93 %
• Output Voltage: 5.075 V
• Output Current: 1500 mA
• Mounting Style: Through Hole
• Switching Frequency: 1000 KHz
• Operating Supply Voltage: 12 V to 20 V
• Maximum Operating Temperature: + 150 C
• Fall Time: 35 ns
• Minimum Operating Temperature: - 40 C
• Rise Time: 70 ns
• Synchronous Pin: Yes
• Topology: Boost, Flyback
• For Use With: 497-8226 - BOARD EVAL L5991/STP12NK80Z497-6416 - BOARD EVAL L5991/STP10NK60Z497-5083 - EVAL BOARD 3PH PWR SUPPLY W/ESBT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5722

ELECTRICAL CHARACTERISTICS (V
unless otherwise specified.)
(*) R
REFERENCE SECTION
OSCILLATOR SECTION
ERROR AMPLIFIER SECTION
PWM CURRENT SENSE SECTION
SOFT START SECTION
LEADING EDGE BLANKING
OUTPUT SECTION
V
V
Symbol
OUT CLAMP
V
SSCLAMP
T
G
V
SVR
V
I
I
V
V
SSSAT
V
= R
I
S
SSC
SSD
T
REF
OS
V
I
I
V
OPL
I
OH
OH
OL
O
OL
b
S
S
R
I
t
A
//R
B
, R
A
Output Voltage
Line Regulation
Load Regulation
Temperature Stability
Total Variation
Short Circuit Current
Power Down/UVLO
Initial Accuracy
Duty Cycle
Duty Cycle Accuracy
Oscillator Ramp Peak
Oscillator Ramp Valley
Input Bias Current
Input Voltage
Open Loop Gain
Supply Voltage Rejection
Output Low Voltage
Output High Voltage
Output Source Current
Output Sink Current
Unit Gain Bandwidth
Slew Rate
Input Bias Current
Maximum Input Signal
Delay to Output
Gain
Fault Threshold Voltage
SS Charge Current
SS Discharge Current
SS Saturation Voltage
SS Clamp Voltage
Internal Masking Time
Output Low Voltage
Output High Voltage
Output Clamp Voltage
Collector Leakage
= R
B
= 27k , see Fig. 23.
Parameter
CC
T
V
I
Line, Load, Temperature
Vref = 0V
V
pin 15 = Vref; T
pin 15 = Vref; V
pin 15 = Vref; V
pin 3 = 0,7V, pin 15 = V
pin 3 = 0.7V, pin 15 = OPEN
pin 3 = 3.2V, pin 15 = V
pin 3 = 3.2V, pin 15 = OPEN
pin 3 = 2.79V, pin 15 = OPEN
V
V
V
V
I
I
V
V
I
V
T
VSS = 0.6V T
DC = 0%
I
I
I
I
V
O
sink
source
sen
O
O
O
O
j
CC
CC
FB
COMP
COMP
CC
COMP
COMP
COMP
j
CC
= 25 C; I
= 25 C
= 1 to 10mA; T
= 250mA
= 20mA; V
= 200mA; V
= 5mA; V
= 15V; T
= 0
= 2mA
to GND
= 12 to 20V; T
= 6V; I
= 12 to 20V
= 20V V
= 0.5mA, V
= 5V
= V
= 2 to 4V
> 4V, V
= 1.1V, V
Test Condition
FB
sink
O
CC
= 1mA
CC
C
j
CC
= 0 to 105 C; R
= 0.5mA
FB
= 20V
j
= 24V
j
= 25 C
= 12V
CC
FB
= 25°C; V
CC
= 2.3V
FB
j
= 12V
V
V
= 25°C
j
= 2.7V
= 12 to 20V
comp
comp
= 25°C
= 12 to 20V
= 2.3V
REF
REF
= 4.5V
= 2V
comp
= 4.5V
T
= 13.3k
4.925
Min.
4.80
46.5
0.75
2.42
0.92
2.85
2.8
0.5
1.7
1.1
30
95
93
47
93
75
60
14
10
5
2
5
9
(*) C
Typ.
10.5
100
100
100
5.0
2.0
2.0
0.4
5.0
0.2
3.0
0.9
0.2
2.5
1.3
1.0
1.2
50
80
90
85
70
20
10
10
13
T
6
6
4
8
3
3
7
2
= 1nF;
L5991 - L5991A
5.075
5.130
Max.
53.5
1.05
2.58
1.08
3.15
150
105
107
100
1.1
2.5
1.3
0.6
1.0
0.5
3.2
3.0
10
10
85
15
26
15
20
0
0
mV/ C
Unit
MHz
V/ s
kHz
kHz
kHz
V/V
mV
mV
mA
mA
mA
dB
dB
ns
ns
%
%
%
%
%
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
A
A
A
A
A
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