L5991A STMicroelectronics, L5991A Datasheet - Page 4
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L5991A
Manufacturer Part Number
L5991A
Description
IC CTRLR PRIMARY BCD 16-DIP
Manufacturer
STMicroelectronics
Datasheet
1.L5991AD13TR.pdf
(23 pages)
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
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
L5991 - L5991A
ELECTRICAL CHARACTERISTICS (continued.)
Figure 1. L5991 - Quiescent current vs. input
4/23
0 .2
0 .1 5
0 .1
0 .0 5
0
V
OUTPUT SECTION
SUPPLY SECTION
STANDBY FUNCTION
SYNCHRONIZATION SECTION
OVER CURRENT PROTECTION
DISABLE SECTION
3 0
2 0
4
REF
8
6
Symbol
V
V
CCOFF
V
I
CCON
V
I
V
V
V
qSH
-V
0
I
V
I
I
I
op
hys
S
q
T1
1
1
Z
1
1
t
Iq [m A ]
ST-BY
voltage.
(X = 7.6V and Y= 8.4V for L5991A)
4
Fall Time
Rise Time
UVLO Saturation
Startup voltage
Minimum Operating
Voltage
UVLO Hysteresis
Start Up Current
Operating Current
Quiescent Current
Zener Voltage
Standby Threshold
Clock Amplitude
Clock Source Current
Sync Pulse
Sync Pulse Current
Fault Threshold Voltage
Shutdown threshold
Input Bias Current
Quiescent current After
Disable
V 1 4 = 0 , P in 2 = o p e n
T j = 2 5 °C
8
Parameter
X
1 2
V c c [V ]
1 6
Y
2 0
C
C
C
C
V
Before Turn-on at:
V
C
(After turn on), CT = 1nF,
R
I
I
V
V
I
Vclock = 3.5V
Low Level
High Level
VSYNC = 3.5V
V
V
8
ST-BY
SOURCE
CC
CC
comp
comp
pin14
CC
O
O
O
O
T
T
= 20mA
2 4
= 13.3k , C
= 1nF, R
= 1nF
= 2.5nF
= 1nF
= 2.5nF
= V
= V
= 15V
Master Operation
= 2mA
Falling
Rising
= 0 to 3V
Slave Operation
C
C
= 0.8mA
2 8
= 0 to V
= V
Test Condition
T
= 13.3k , C
CCON
O
=0nF
CCON;
Figure 2. L5991 - Quiescent current vs. input
3 5 0
3 0 0
2 5 0
2 0 0
1 5 0
1 0 0
-0.5V
5 0
0
I
0
sink
O
I q [ µ A ]
=1nF
= 10mA
L5991A
L5991A
L5991A
voltage (after disable).
(X = 7.6V and Y= 8.4V for L5991A)
L5991
L5991
L5991
4
8
Min.
7.8
4.5
0.5
3.5
0.5
1.1
2.4
14
40
21
-1
9
7
4
3
X
V c c [ V ]
1 2
Typ.
330
8.4
7.6
0.8
7.0
2.5
4.0
1.2
2.5
20
35
50
70
15
10
75
25
45
5
9
7
Y
1 6
V 1 4 = V r e f
T j = 2 5 ° C
Max.
100
120
1.0
8.2
1.3
2.6
60
16
11
13
10
30
9
1
1
2 0
Unit
mA
mA
mV
mA
mA
ns
ns
ns
ns
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
A
A
A
2 4