L5991 STMicroelectronics, L5991 Datasheet - Page 18

IC PRIMARY CTRLR W/STANDBY 16DIP

L5991

Manufacturer Part Number
L5991
Description
IC PRIMARY CTRLR W/STANDBY 16DIP
Manufacturer
STMicroelectronics
Datasheet

Specifications of L5991

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
11 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
Package
DIP16 AND SO16
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
497-7251-5
L5991

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
L5991
Manufacturer:
ST
Quantity:
1 000
Part Number:
L5991
Manufacturer:
ST
0
Part Number:
L5991
Manufacturer:
ST
Quantity:
4 331
Part Number:
L5991@@@@@@
Manufacturer:
ST
0
Part Number:
L5991A
Manufacturer:
EC
Quantity:
1 262
Part Number:
L5991A
Manufacturer:
ST
0
Part Number:
L5991A
Manufacturer:
ST
Quantity:
20 000
Part Number:
L5991A
Manufacturer:
ST
Quantity:
4 206
Part Number:
L5991A-LF
Manufacturer:
ST
0
Part Number:
L5991A-LT
Manufacturer:
ST
Quantity:
20 000
Part Number:
L5991AD
Manufacturer:
ST
Quantity:
2 500
Part Number:
L5991AD
Quantity:
1 000
Part Number:
L5991AD
Manufacturer:
STR
Quantity:
1
Part Number:
L5991AD
Manufacturer:
ST
Quantity:
20 000
Part Number:
L5991AD
Manufacturer:
ST
Quantity:
13 767
L5991 - L5991A
Figure 39. Typical E/A compensation networks.
Figure 40. Feedback with optocoupler.
Figure 41. Slope compensation techniques.
I
18/23
R
SENSE
R
SLOPE
R
B
OPTIONAL
ST-BY
R
C
ISEN
V
RCT
C
A
T
Error Amp compensation circuit for stabilizing any current-mode topology except
for boost and flyback converters operating with continuous inductor current.
Error Amp compensation circuit for stabilizing current-mode boost and flyback
topologies operating with continuous inductor current.
REF
R
P
From V
P
From V
16
4
2
13
O
R
L5991
12
R
i
R
R
O
d
d
i
SGND
L5991
C
f
C
f
5
I
VFB
R
6
COMP
COMP
SENSE
VFB
VFB
R
R
R
SLOPE
COMP
f
f
5
6
5
6
R
2.5V
2.5V
B
OPTIONAL
+
+
-
-
EA
EA
ST-BY
R
C
ISEN
V
RCT
A
T
REF
+
+
D97IN759
TL431
16
4
2
13
1.3mA
1.3mA
L5991
12
SGND
2R
2R
12
12
D97IN760A
R
R
SGND
V
OUT
SGND
SGND
L5991
12
10
13
D97IN507
OPTIONAL
OUT
ISEN
R
R
SLOPE
C
R
SLOPE
SENSE

Related parts for L5991