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Manufacturer Part #

L6591

L6591 Series 22 V 50% 500 kHz PWM Controller for ZVS Half Bridge - SOIC-16

Mfr. Name: STMicroelectronics
Standard Pkg:
Product Variant Information section
Date Code: 1623
Product Specification Section
Technical Attributes
Attributes Table
Supply Current-Max: 8mA
Supply Voltage: 22V
Frequency-Max: 500kHz
Topology: Half-Bridge
Rated Power: 0.75W
Duty Cycle-Min: 46%
Duty Cycle-Max: 50%
Operating Temp Range: -40°C to +150°C
Storage Temperature Range: -55°C to +150°C
Output Current: 0.5A
Thermal Resistance: 120°C/W
Package Style:  SOIC-16N
Mounting Method: Surface Mount
Features & Applications

The L6591 is a double-ended PWM controller specific for the soft-switched half-bridge topology. It provides complementary PWM control, where the high-side switch is driven ON for a duty cycle D and the low-side switch for a duty cycle 1-D, with D < 50%. An externally programmable dead time inserted between the turn-off of one switch and the turn-on of the other one guarantees soft-switching and enables high-frequency operation.

Features:

  • Complementary PWM control for soft-switched half-bridge with programmable dead-time
  • Up to 500 kHz operating frequency
  • On-board high-voltage start-up
  • Advanced light load management
  • Adaptive UVLO
  • Pulse-by-pulse OCP
  • OLP (latched or autorestart)
  • Transformer saturation detection
  • Interface with PFC controller
  • Latched disable input
  • Input for power-on sequencing or brownout protection
  • Programmable soft-start
  • 4% precision external reference
  • 600 V-rail compatible high-side gate driver with integrated bootstrap diode and high dV/dt
  • immunity
  • SO16N package

Applications:

  • High power AC-DC adapter/charger
  • Desktop PC, entry-level server
  • Telecom SMPS
Pricing Section
Stock:
0
Minimum Order:
1,000
Multiple Of:
50
On Order:
0
Factory Stock:Factory Stock:
0
Factory Lead Time:
12 Weeks
Total
$1,650.00
USD
Quantity
Web Price
50
$2.56
200
$1.80
750
$1.65
1,500
$1.57
3,750+
$1.48
Product Variant Information section