Description: NTE7109 primary switching regulator controller 16-Lead ty
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NTE7109 Integrated Circuit Switching Regulator Control
Description: NTE7109 primary switching regulator controller 16-Lead type package designed regulated voltage from power supply. This device directly drive MOSFET with fast rise fall output pulses. NTE7109 contains only high frequency fast output drive, also current limiter with fast response high sensibility true "fast switching regulator" realized. adding additional compenents primary side, timer-type protection circuit made protection against short-circuit overcurrent. Features: 500kHz Operation MOSFET Output Current: Output Rise Time: 60ns; Fall Time: 40ns Modified Totem-Pole Output Method with Through Current Compact Light-Weight Power Supply Start-Up Current: Typ. Wide Range Between "Start-Up Voltage" "Stop Voltage" make Power Input Smooting Capacitor Low; Start-Up Threshold Voltage: 16V; Stop Voltage: High Power Dissipation Package withstands Heat Generated Gate-Drive Current MOSFET Simplified Peripheral Circuit with Protection Circuit Built-In Large-Capacity Totem-Pole Output High-Speed Current Limiting Circuit using Pulse-by-Pulse Method (Two Systems CLM+pin, CLM-pin) Protection Intermittent Operation Output Overcurrent: Timer Protection Circuit Overvoltage Protection Circuit with Externally Resettable Latch (OVP) Protection Circuit Output Miss Action Supply Voltage (UVLO) High-Performance Highly Functional Power Supply Triangular Wave Oscillator Easy Dead Time Setting Applications: Feed Forward Regulator Flyback Regulator Absolute Maximum Ratings: Supply Voltage,
Collector Voltage, Output Current, Peak Continuous ±0.5A Terminal Voltage, ON/OFF Terminal Voltage, VON/OFF Terminal Voltage, VCLM -4.0 +4.0V Terminal Voltage, VCLM -0.3 +4.0V Terminal Current, IOVP Terminal Voltage, VDET Terminal Input Current, IDET Terminal Voltage, VF/B T-ON Terminal Input Current, ITON -1mA T-OFF Terminal Input Current, ITOFF -2mA Power Dissipation +25°C), 1.5W Derate Above 12mW/°C Junction Temperature, +150°C Operating Temperature Range, Topr -30° +85°C Storage Temperature Range, Tstg -40° +125°C Note sign shows direction current flow into sigh shows current flow from Note This terminal constant voltage characteristic when current supplied from outside. maximum allowable voltage when constant voltage applied this terminal. maximum allowable current into this terminal 5mA. Note impedance voltage supply should applied terminal. Recommended Operating Conditions:
Parameter Supply Voltage Range Operating Frequency Oscillator Frequency Setting Resistance T-ON Resistance T-OFF Resistance Symbol fOSC ROFF Test Conditions Unit
Electrical Characteristics: (VCC 18V, +25°C unless otherwise specified)
Parameter Supply Voltage Circuit Current Operating Supply Voltage Range Operation Start-Up Voltage Operation Stop Voltage Difference Between Operation Start Stop Voltage Stand-By Current VCC(START) VCC(STOP) ICCL ICCO VCC(START) VCC(STOP) 14.5V, +25°C 14.5V, -30° +85°C Operating Circuit Current VCC(STOP) 15.2 16.2 17.2 10.9 Symbol Test Conditions Unit
Electrical Characteristics (Cont'd): (VCC 18V, +25°C unless otherwise specified)
Parameter Symbol Test Conditions Unit Supply Voltage Circuit Current (Cont'd) Circuit Current State Circuit Current Timer State Circuit Current State ON/OFF High Threshold Voltage Threshold Voltage Hysterisis Current Duty Current Maximum Duty Current Difference Between Duty Terminal Voltage Terminal Resistance Detection Detection Voltage Input Current Detection Voltage Gain Detection High Threshol Voltage Hysterisis Voltage Threshold Current Input Current Reset Supply Voltage Difference Between Operation Supply Voltage Stop Reset Current From Terminal Reset Threshold Voltage Input Current Reset Supply Voltage Difference Between Operation Supply Voltage Stop Reset OVPC (STOP) -VCC OVPC 1.00 0.65 1.40 1.30 1.90 OVPH OVPC (STOP) -VCC OVPC OVPC VOVP 400mV Terminal Open (High Impedance) OVPH OVPL 0.55 1.20 10.0 VDET VDET 2.5V MIND MAXD Terminal Input Current Terminal Input Current MIND MAXD Terminal Input Current 0.95mA -2.1 -1.54 -1.0 VTHH ON/OFF VTHL ON/OFF ON/OFF 0.95 0.95 1.31 1.35
-0.90 -0.55 -0.40 -1.35 -0.99 -0.70
-480 -210
-320 -140
-213
Electrical Characteristics (Cont'd): (VCC 18V, +25°C unless otherwise specified)
Parameter Timer Timer Frequency Timer Charge Current ITIMER ITIM 4.7F 3.3V, -5°C +25°C +85°C Time/ON Time Ratio Threshold Voltage Input Current Delay Time from CLM- VOUT Threshold Voltage Input Current Delay Time from CLM+ VOUT Oscillator Oscillating Frequency Maximum Duty Upper Limit Oscillation Waveform Lower Limit Oscillation Waveform Difference Betwee Upper Limit Lower Limit Voltage Waveform Frequency Operating State Duty Operating State Timer Operating Start Voltage Input Current Output Output Voltage Output High Voltage Output Voltage Rise Time Output Voltage Fall Time TRISE tFALL 18V, 10mA 18V, 100mA 100mA 18V, -10mA 18V, -100mA Load Load 16.0 15.5 0.05 0.69 16.5 16.0 fOSC DUTY TIME Source Current 20k, ROFF 17k, 220pF 11.0 13.7 22.0 fOSC TDUTY VOSCH VOSCL VOSC 20k, ROFF 17k, 220pF, 85°C fOSC 188kHz fOSC 188kHz fOSC 188kHz 3.97 1.76 2.11 4.37 1.96 2.41 4.77 2.16 2.71 CLM+ CLM+ CLM+ 85°C VCLM+ -0.1V -270 -205 -140 CLMIIN CLMTPD CLM-5° 85°C VCLM- -0.1V -220 -170 -200 -125 -180 TIMEOFF/ON 0.27 -193 -178 -147 0.40 -138 -127 -105 0.60 -102 11.0 Symbol Test Conditions Unit
0.2V, Duty/Max Duty
Connection Diagram
Collector VOUT
Capacitance
Emitter
ON/OFF (Shut Down)
.260 (6.6)
.785 (19.9) .200 (5.08) .245 (6.22) .100 (2.54) .700 (17.7)
.300 (7.62)
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