L6591 STMicroelectronics, L6591 Datasheet - Page 35

• 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

L6591
Table 6.
1. Use one external diode from SS (#14) to VREF (#10), cathode to VREF.
2. The condition is latched as long as the IC is supplied; the HV generator is not invoked.
Note:
Protection
DISABLE
Brownout
2
nd
OCP
Protections (continued)
All values are typical unless otherwise specified.
It is worth reminding that “auto-restart” means that the device will work intermittently as long
as the condition that is activating the function is not removed; “Latched” means that the
device is stopped as long as the unit is connected to the input power source and the unit
must be disconnected for some time from the source in order for the device (and the unit) to
restart.
programmabl
undervoltage
saturation or
Description Caused by
Transformer
secondary
protection
Externally
protection
protection
e latched
shorted
Mains
diode
consecutive
1.5 V for 2
switching
V
V
cycles
V
1.25 V
4.5 V
ISEN
LINE
DIS
>
<
>
behavior
Latched
Latched
restart
Auto
IC
(2)
Doc ID 14821 Rev 5
restart
Vcc
[V]
13
Summary of L6591 power management functions
5
5
[mA]
IC Iq
0.35
max
0.35
max
0.35
max
VREF
[V]
0
0
0
SS
0
0
0
V
COMP
[V]
0
0
0
OSC
Stop
Stop
Stop
[V]
PFC_STOP
Active (low)
Active (low)
Not active
(high Z)
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