L6591 STMicroelectronics, L6591 Datasheet - Page 4
L6591
Manufacturer Part Number
L6591
Description
IC CTRLR PWM PROG CM HV 16SOIC
Manufacturer
STMicroelectronics
Specifications of L6591
Output Isolation
Isolated
Frequency Range
168 ~ 192kHz
Voltage - Input
8.7 ~ 22 V
Power (watts)
750mW
Operating Temperature
-40°C ~ 150°C
Package / Case
16-SOIC (0.154", 3.90mm Width)
Output Voltage
5 V
Input Voltage
25 V
Operating Temperature Range
- 40 C to + 150 C
Mounting Style
SMD/SMT
Duty Cycle (max)
50 %
For Use With
497-8335 - BOARD EVAL FOR L6591
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-8286
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
L6591
Manufacturer:
ST
Quantity:
20 000
Part Number:
L6591TR
Manufacturer:
ST
Quantity:
20 000
Pin settings
2
2.1
2.2
4/41
Pin settings
Connection
Figure 3.
Functions
Table 1.
Pin N.
1
2
Pin connection (top view)
Pin functions
Name
LINE
DIS
PFC_STOP
Line sensing input. The pin is to be connected to the high-voltage input bus
with a resistor divider. A voltage below 1.25 V shuts down the IC, lowers its
consumption and discharges the soft-start capacitor. IC’s operation is re-
enabled as the voltage exceeds 1.25 V. The comparator is provided with
current hysteresis: an internal 15 µA current generator is ON as long as the
voltage applied at the pin is below 1.25 V and is OFF if this value is
exceeded. Bypass the pin with a capacitor to GND (#11) to reduce noise
pick-up. The pin is intended for either power-on sequencing in systems with
PFC, or brownout protection. Tie to Vcc (#9) with a 220 to 330 kΩ resistor if
the function is not used.
Latched device shutdown. Internally the pin connects a comparator that,
when the voltage on the pin exceeds 4.5 V, shuts the IC down and brings its
consumption to a value barely higher than before start-up. The information
is latched and it is necessary to recycle the input power to restart the IC: the
latch is removed as the voltage on the Vcc pin (#9) goes below the UVLO
threshold. Connect the pin to GND (#11) if the function is not used.
COMP
VREF
ISEN
LINE
OSC
DIS
Doc ID 14821 Rev 5
SS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
Function
9
HVSTART
BOOT
HVG
FGND
N.C.
GND
LVG
Vcc
L6591