FS6S FAIRCHILD | Alldatasheet

Document overview

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Technical content

Features

  • Wide Operating Frequency Range Up to 150Khz
  • Lowest Cost SMPS Solution
  • Lowest External Components
  • Low Start up Current (max:170uA)
  • Low Operating Current (max:15mA)
  • Internal High V oltage SenseFET
  • Built-in Auto Restart Circuit
  • Over V oltage Protection (Auto Restart Mode)
  • Over Load Protection (Auto Restart Mode)
  • Over Current Protection With Latch Mode
  • Internal Thermal Protection With Latch Mode
  • Pulse By Pulse Over Current Limiting
  • Internal Burst Mode Controller for Stand-by Mode
  • Under V oltage Lockout With Hysteresis
  • External Sync. Terminal Application
  • Monitor SMPS

Description

The Fairchild Power Switch(FPS) product family are specially designed for an off line SMPS with minimal external components. The Fairchild Power Switch(FPS) consists of a high voltage power SenseFET and a current mode PWM IC. Included PWM controller features the integrated fixed oscillator, the under voltage lockout, the optimized gate turn on/turn off driver, the thermal shut down protection, the over voltage protection, and the temperature compensated precision current sources for the loop compensation and the fault protection circuitry. Compared to a discrete MOSFET and a controller or a RCC switching converter solution, a Fairchild Power Switch(FPS) can reduce the total component count, design size, and weight and at the same time increase efficiency, productivity, and system reliability. It has a basic platform well suited for the cost effective monitor power supply. TO-3P-5L TO-220F-5L Internal Block Diagram FS6S-SERIES FS6S0965RT/FS6S1265RB Fairchild Power Switch(FPS) S R Q S R Q TS D (Tj=160℃) Ifb 11113333 5555 4444 2222 Vref Rsenese 2.5R R Vref Internal Bias Vref UVLO Ron Roff PWM OCL Burst mode controller Filter (130nsec) UVLO Reset (Vcc=9V) OLP OVP Vth=7.5V Vcc Vth=30V Vth=1V Vfb Offset Idelay Vcc Vfb Vth=1V Vcc Vth=11V/12V OSC Vref Vpp=5.8/7.2V DrainDrainDrainDrainVccVccVccVcc SoftStart SoftStart SoftStart SoftStart & Sync& Sync& Sync& Sync FeedbackFeedbackFeedbackFeedback GNDGNDGNDGND

FS6S-SERIES FS6S0965RT/FS6S1265RB Absolute Maximum Ratings (Ta=25°C, unless otherwise specified) Characteristic Symbol Value Unit FS6S0965RT Maximum Drain Voltage V D,MAX 650 V Drain-Gate Voltage(RGS=1MΩ) VDGR 650 V Gate-Source(GND) Voltage V GS ±30 V Drain Current Pulsed(1) IDM 36 ADC Continuous Drain Current (Tc = 25°C) I D 9A D C Continuous Drain Current (Tc = 100°C) I D 7.2 ADC Single Pulsed Avalanche Current(Energy (2))I AS(EAS) 25(950) A(mJ) Maximum Supply Voltage V CC,MAX 35 V Input Voltage Range VFB -0.3 to VCC V VSS -0.3 to 10 V Total Power Dissipation PD (Watt H/S) 48 W Darting 0.385 W / °C Operating Junction Temperature. T J +160 °C Operating Ambient Temperature. T A -25 to +85 °C Storage Temperature Range. T STG -55 to +150 °C FS6S1265RB Maximum Drain Voltage V D,MAX 650 V Drain-Gate Voltage(RGS=1MΩ) VDGR 650 V Gate-Source(GND) Voltage V GS ±30 V Drain Current Pulsed(1) IDM 48 ADC Continuous Drain Current (Tc = 25°C) I D 12 ADC Continuous Drain Current (Tc = 100°C) I D 8.4 ADC Single Pulsed Avalanche Current(Energy (2))I AS(EAS) 30(950) A(mJ) Maximum Supply Voltage V CC,MAX 35 V Input Voltage Range VFB -0.3 to VCC V VSS -0.3 to 10 V Total Power Dissipation PD (Watt H/S) 240 W Darting 1.92 W / °C Operating Junction Temperature. T J +160 °C Operating Ambient Temperature. T A -25 to +85 °C Storage Temperature Range. T STG -55 to +150 °C

FS6S-SERIES FS6S0965RT/FS6S1265RB Electrical Characteristics (SenseFET Part) (Ta = 25°C unless otherwise specified) Parameter Symbol Conditions Min. Typ. Max. Unit FS6S0965RT Drain Source Breakdown Voltage BV DSS VGS = 0V, ID = 50µA 650 - - V Zero Gate Voltage Drain Current I DSS VDS=Max., Rating, VGS=0V - - 200 µA VDS= 0.8Max., Rating, VGS = 0V, TC = 125°C - - 300 µA Static Drain-Source On Resistance (1) RDS(on) VGS = 10V, ID = 4.5A - 1.1 1.2 Ω Forward Transconductance(1) gfs V DS = 50V, ID = 4.5A - - - S Input Capacitance Ciss VGS = 0V, VDS = 25V, f = 1MHz - 1300 - pFOutput Capacitance Coss - 135 - Reverse Transfer Capacitance Crss - 25 - Turn On Delay Time t d(on) VDD = 0.5BVDSS, ID = 9.0A (MOSFET switching time is essentially independent of operating temperature) -2 5- nS Rise Time tr - 75 - Turn Off Delay Time t d(off) - 130 - Fall Time tf - 70 - Total Gate Charge (Gate-Source+Gate-Drain) Qg V GS = 10V, ID = 9.0A, VDS = 0.5BVDSS(MOSFET switching time is essentially independent of operating temperature) -4 5- nC Gate-Source Charge Qgs - 8 - Gate-Drain (Miller) Charge Qgd - 22 - FS6S1265RB Drain-Source Breakdown Voltage BV DSS VGS = 0V, ID = 50µA 650 - - V Zero Gate Voltage Drain Current I DSS VDS=Max, Rating, VGS = 0V - - 200 µA VDS= 0.8Max, Rating, VGS = 0V, TC = 125°C - - 300 µA Static Drain-Source on Resistance (1) RDS(on) VGS = 10V, ID = 4.5A - 0.7 0.9 Ω Forward Transconductance(1) gfs V DS = 50V, ID = 4.5A - - - S Input Capacitance Ciss VGS = 0V, VDS = 25V, f = 1MHz - 1820 - pFOutput Capacitance Coss - 185 - Reverse Transfer Capacitance Crss - 32 - Turn On Delay Time t d(on) VDD = 0.5BVDSS, ID = 12.0A (MOSFET switching time are essentially independent of operating temperature) -3 8- nSRise Time tr - 120 - Turn Off Delay Time t d(off) - 200 - Fall Time tf - 100 - Total Gate Charge (Gate-Source+Gate-Drain) Qg VGS = 10V, ID = 12.0A, VDS = 0.5BVDSS(MOSFET switching time are essentially independent of operating temperature) -6 0- nCGate-Source Charge Qgs - 10 - Gate-Drain (Miller) Charge Qgd - 30 -

FS6S-SERIES FS6S0965RT/FS6S1265RB Electrical Characteristics (Continued) (VCC=16V, Tamb = 25°C unless otherwise specified) Notes: 1. These parameters are the Current Flowing in the Control IC. 2. These parameters, although guaranteed, are not 100% tested in production 3. These parameters, although guaranteed, are tested in EDS(wafer test) process 4. These parameters are indicated Inductor Current. Parameter Symbol Conditions Min. Typ. Max. Unit UVLO SECTION Start Threshold Voltage V START VFB=GND 14 15 16 V Stop Threshold Voltage V STOP VFB=GND 8 9 10 V OSCILLATOR SECTION Initial Frequency F OSC -2 2 2 5 2 8 k H z Voltage Stability F STABLE 12V ≤ VCC ≤ 23V 0 1 3% Temperature Stability (Note2) ∆FOSC -25°C ≤ Τa ≤ 85°C0 ±5 ±10 % Maximum Duty Cycle D MAX -9 2 9 5 9 8 % Minimum Duty Cycle D MIN -- - 0 % FEEDBACK SECTION Feedback Source Current I FB VFB=GND 0.7 0.9 1.1 mA Shutdown Feedback Voltage V SD VFB ≥ 6.9V 6.9 7.5 8.1 V Shutdown Delay Current I DELAY VFB=5V 1.6 2.0 2.4 µA SYNC. & SOFTSTART SECTION Softstart Voltage V SS VFB=2V 4.7 5.0 5.3 V Softstart Current I SS VSS=0V 0.8 1.0 1.2 mA Sync High Threshold Voltage(Note3) V SYNCH VCC=16V , VFB=5V - 7.2 - V Sync Low Threshold Voltage(Note3) V SYNCL VCC=16V , VFB=5V - 5.8 - V BURST MODE SECTION Burst Mode Low Threshold Voltage V BURL VFB=0V 10.4 11.0 11.6 V Burst Mode High Threshold Voltage V BURH VFB=0V 11.4 12.0 12.6 V Burst Mode Enable Feedback Voltage V BEN VCC=10.5V 0.7 1.0 1.3 V Burst Mode Peak Current Limit(Note4) I BURPK VCC=10.5V , VFB=0V 0.6 0.85 1.1 A Burst Mode Frequency F BUR VCC=10.5V , VFB=0V 40 50 60 kHz CURRENT LIMIT(SELF-PROTECTION)SECTION Peak Current Limit (Note4) I OVER FS6S0965RT 5.28 6.0 6.72 A FS6S1265RB 7.04 8.0 8.96 PROTECTION SECTION Over Voltage Protection V OVP VCC ≥ 27V 27 30 33 V Over Current Latch voltage(Note3) V OCL -0 . 9 1 . 0 1 . 1 V Thermal Shutdown Temperature (Note2) TSD - 140 160 - °C TOTAL DEVICE SECTION Start-Up Current I START VFB = GND, VCC = 14V - 0.1 0.17 mA Operating Supply Current(Note1) IOP VFB = GND, VCC = 16V -1 0 1 5 m AIOP(MIN) VFB = GND, VCC = 12V IOP(MAX) VFB = GND, VCC = 30V

FS6S-SERIES FS6S0965RT/FS6S1265RB Package Dimensions TO-3P-5L

FS6S-SERIES FS6S0965RT/FS6S1265RB Package Dimensions (Continued) TO-3P-5L(Forming)

FS6S-SERIES FS6S0965RT/FS6S1265RB Package Dimensions (Continued) TO-220F-5L

FS6S-SERIES FS6S0965RT/FS6S1265RB Package Dimensions (Continued) TO-220F-5L(Forming)

FS6S-SERIES FS6S0965RT/FS6S1265RB TOP Mark and Pinout Information Notes: (1) F : Fairchild Semiconductor (2) 6S1265RB : Device Marking Name (3) S : Plant Code (FPS: S) (4) XX : Patweek Based on Fairchild Semiconductor Work Month Calender (5) YY : Last Two Digit of Calender Year Device Marking FS6S0965RT 6S0965R FS6S1265RB 6S1265RB SSSSXXXXXXXXYYYYYYYY MMMMAAAARRRRKKKKIIIINNNNGGGG FFFF Pin No. Symbol Description

1 Drain SenseFET Drain

2 GND Ground (Source)

3V CC Control Part Supply Input

4 F/B PWM Non Inverting Input

5 S/S Soft start & External Sync.

FS6S-SERIES FS6S0965RT/FS6S1265RB 4/19/02 0.0m 001 Stock#DSxxxxxxxx  2002 Fairchild Semiconductor Corporation LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

Ordering Information

TU : Non Forming Type YDTU : Forming Type Product Number Package Marking Code BVdss Rds(on) FS6S0965RT-TU TO-220F-5L 6S0965R 650V 1.1 Ω FS6S0965RT-YDTU TO-220F-5L(Forming) FS6S1265RB-TU TO-3P-5L 6S1265RB 650V 0.7 ΩFS6S1265RB-YDTU TO-3P-5L(Forming)