ON Semiconductor

FSL116LR

650V Integrated Power Switch with 50kHz frequency and adjustable current limit for 14W offline flyback converters

Topology: Flyback
Input Voltage (min.): 85.00 V
Input Voltage (max.): 600.00 V
Switching Frequency (min.): 45.50 kHz
Switching Frequency (max.): 54.50 kHz
Output 1: 12.00 V / 0.400 A
Output 2: 5.00 V / 1.000 A

Original publication on 2012-04-27, revision 1.0.1 on

Description

The FSL116LR integrates a Pulse Width Modulator (PWM) and SenseFET is specifically designed for highperformance offline Switch-Mode Power Supplies (SMPS) with minimal external components. FSL116LR includes integrated high-voltage power switching regulators that combine an avalanche-rugged SenseFET with a current-mode PWM control block. The integrated PWM controller includes: Under-Voltage Lockout (UVLO) protection, Leading-Edge Blanking (LEB), a frequency generator for EMI attenuation, an optimized gate turn-on/turn-off driver, Thermal Shutdown (TSD) protection, and temperaturecompensated precision current sources for loop compensation and fault protection circuitry. The FSL116LR offers good soft-start performance. When compared to a discrete MOSFET and controller or RCC switching converter solution, the FSL116LR reduces total component count, design size, and weight; while increasing efficiency, productivity, and system reliability. This device provides a basic platform that is well suited for the design of cost-effective flyback converters.

Characteristics

  • Internal Avalanche-Rugged SenseFET (650V)
  • Under 50mW Standby Power Consumption at265VAC, No-load Condition with Burst Mode
  • Precision Fixed Operating Frequency withFrequency Modulation for Attenuating EMI
  • Internal Startup Circuit
  • Built-in Soft-Start: 15ms
  • Pulse-by-Pulse Current Limiting
  • Various Protections: Over-Voltage Protection(OVP), Overload Protection (OLP), Output-ShortProtection (OSP), Abnormal Over-CurrentProtection (AOCP), Internal Thermal ShutdownFunction with Hysteresis (TSD)
  • Auto-Restart Mode
  • Under-Voltage Lockout (UVLO)
  • Low Operating Current: 1.8mA
  • Adjustable Peak Current Limit

Products

  Order Code SPEC Product series Vin VOut1
(V)
IOut1
(A)
VOut2
(V)
IOut2
(A)
Vaux
(V)
fswitch
(kHz)
L1
(mH)
NPRI : NSEC : NAUX VT
(V (AC))
L
(mm)
W
(mm)
H
(mm)
Montageart Samples
750341793 PDF MID-OLON Offline Flyback Transformers for ON Semiconductor 85 - 600 V (AC) 5 1 12 0.4 12 50 2.25 14.9:1:2.30:2.4 3000 23 22 17.53 THT