L5991 STMicroelectronics, L5991 Datasheet - Page 2
![IC PRIMARY CTRLR W/STANDBY 16DIP](/photos/5/23/52339/497-16-dip_series_sml.jpg)
L5991
Manufacturer Part Number
L5991
Description
IC PRIMARY CTRLR W/STANDBY 16DIP
Manufacturer
STMicroelectronics
Datasheet
1.L5991AD13TR.pdf
(23 pages)
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
L5991
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
L5991A
Manufacturer:
ST
Quantity:
20 000
Part Number:
L5991A-LT
Manufacturer:
ST
Quantity:
20 000
Part Number:
L5991AD
Manufacturer:
ST
Quantity:
20 000
Part Number:
L5991D
Manufacturer:
ST
Quantity:
20 000
L5991 - L5991A
ABSOLUTE MAXIMUM RATINGS
(*) maximum package power dissipation limits must be observed
PIN CONNECTION
THERMAL DATA
PIN FUNCTIONS
2/23
10
11
12
13
14
15
16
N.
1
2
3
4
5
6
7
8
9
Symbol
Symbol
R
th j-amb
I
V
P
T
OUT
T
CC
stg
tot
j
DC-LIM
COMP
PGND
SGND
ST-BY
SYNC
Name
VREF
ISEN
OUT
RCT
VFB
V
DIS
DC
SS
V
CC
C
Supply Voltage (I
Output Peak Pulse Current
Analog Inputs & Outputs (6,7)
Analog Inputs & Outputs (1,2,3,4,5,15,14, 13, 16)
Power Dissipation @ T
Junction Temperature, Operating Range
Storage Temperature, Operating Range
Thermal Resistance Junction -Ambient (DIP16)
Thermal Resistance Junction -Ambient (SO16)
Synchronization. A synchronization pulse terminates the PWM cycle and discharges Ct
Oscillator pin for external C
Duty Cycle control
5.0V +/-1.5% reference voltage @ 25°C
Error Amplifier Inverting input
Error Amplifier Output
Soft start pin for external capacitor Css
Supply for internal "Signal" circuitry
Supply for Power section
High current totem pole output
Power ground
Signal ground
Current sense
Disable. It must never be left floating. TIE to SGND if not used.
Connecting this pin to Vref, DC is limited to 50%. If it is left floating or grounded no limitation is
imposed
Standby. Connect a resistor to RCT. Connect to VREF or floating if not used.
CC
@ T
COMP
SYNC
VREF
< 50mA) (*)
RCT
VFB
V
amb
amb
DC
SS
CC
Parameter
Parameter
= 50 C (SO16)
= 70 C (DIP16)
1
2
3
4
5
6
7
8
T
, R
A
, R
B
components
16
15
14
13
12
11
10
Function
9
ST-BY
DC-LIM
DIS
ISEN
SGND
PGND
OUT
V
C
-40 to 150
-55 to 150
-0.3 to 8
-0.3 to 6
selflimit
Value
Value
0.83
120
1.5
80
1
Unit
Unit
C/W
C/W
W
W
V
A
V
V
C
C