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NCP1201

http://onsemi.com

ORDERING INFORMATION

Device

Package

Shipping

†

NCP1201P60

PDIP−8

50 Units / Rail

NCP1201P60G

PDIP−8

(Pb−Free)

NCP1201D60R2

SOIC−8

2500 Units / Tape & Reel

NCP1201D60R2G

SOIC−8

(Pb−Free)

NCP1201P100

PDIP−8

50 Units / Rail

NCP1201P100G

PDIP−8

(Pb−Free)

NCP1201D100R2

SOIC−8

2500 Units / Tape & Reel

NCP1201D100R2G

SOIC−8

(Pb−Free)

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging

Specifications Brochure, BRD8011/D.

Содержание NCP1201

Страница 1: ...down to a pre defined setpoint VSKIP value e g the output power demand diminishes the IC automatically enters the skip cycle mode and can provide excellent efficiency under light load conditions The s...

Страница 2: ...3 C1 4 7 m 400 V 470 mH 0 2 A L1 C2 4 7 m 400 V R1 195 7 k R2 4 3 k C3 470 p 250 V R3 100 k 1 0 W 1N4937 D1 Q1 MTD1N60E C4 10 mF T1 D2 1N5819 47 mH 1 0 A L3 6 5 V 600 mA C6 10 m C5 10 m C7 1 0 n 250...

Страница 3: ...iagram 50 mA Iref Output 80 K Output 1 07 V Reset Reset Q Set Enable Skip Cycle Comparator 60 or 100 kHz Clock Oscillator 10 5 V 12 5 V Output Internal Regulator Vref Overload Startup Blanking Output...

Страница 4: ...CC capacitor MAXIMUM RATINGS TJ 25 C unless otherwise noted Rating Symbol Value Unit Power Supply Voltage Pin 6 VCC 0 3 16 V Input Output Pins Pins 1 2 3 5 VIO 0 3 6 5 V Maximum Voltage on Pin 8 HV VH...

Страница 5: ...10 22 W CURRENT SENSE SECTION Pin 5 Unloaded Input Bias Current 1 0 V Input Level on Pin 3 IIB CS 10 100 nA Maximum Current Sense Input Threshold VILIMIT 0 8 0 9 1 0 V Default Current Sense Threshold...

Страница 6: ...T SOURCE mA 5 0 3 5 2 0 0 5 6 5 VCC 11 V 1 nF Load Figure 3 VCC OFF Threshold Voltage vs Junction Temperature TJ JUNCTION TEMPERATURE C 125 100 75 50 25 0 25 10 8 VCC ON V CC ON THRESHOLD VOLTAGE V 10...

Страница 7: ...ture TJ JUNCTION TEMPERATURE C 125 100 75 50 25 0 25 12 I IB CS CS PIN INPUT BIAS CURRENT nA 10 9 7 6 8 11 TJ JUNCTION TEMPERATURE C 125 100 75 50 25 0 25 70 R OH SOURCE RESISTANCE W 60 40 30 0 TJ JUN...

Страница 8: ...nS 85 55 40 10 TJ JUNCTION TEMPERATURE C 125 100 75 50 25 0 25 400 T LEB LEADING EDGE BLANKING DURATION nS 250 100 0 50 300 TJ JUNCTION TEMPERATURE C 125 100 75 50 25 0 25 120 F OSC OSCILLATOR FREQUE...

Страница 9: ...50 25 0 25 1 15 V SKIP SKIP CYCLE COMPARATOR THRESHOLD VOLTAGE V 1 10 1 05 1 00 0 95 TJ JUNCTION TEMPERATURE C 125 100 75 50 25 0 25 19 R UP INTERNAL PULLUP RESISTOR kW 18 16 13 TJ JUNCTION TEMPERATU...

Страница 10: ...arge Discharge Cycle Over a 10 mF VCC Capacitor 10 mS 30 mS 50 mS 70 mS 90 mS Current Source OFF VCC Output Pulses Vripple 2 V VCCOFF 12 5 V VCCON 10 5 V ON The DSS behavior actually depends on the in...

Страница 11: ...reshold level 1 07 V the IC prevents the current from decreasing further down and starts to blank the output pulses i e the controller enters the so called Skip Cycle Mode also named Controlled Burst...

Страница 12: ...30 MOSFET VDS at Various Power Levels P1 P2 P3 P1 0 4 W P2 1 8 W P3 3 6 W 315 4uS 882uS 1 450mS 2 017mS 2 585mS 300 0M 200 0M 100 0M 0 Skip Cycle current limit Max peak current Figure 31 The Skip Cycl...

Страница 13: ...below 1 92 V a reset signal will be generated via internal protection logic to the PWM Latch to turn off the Power Switch immediately At the same time an internal current source controlled by the stat...

Страница 14: ...e device temporarily and authorize its restart once the control signal has disappeared This option can easily be accomplished through a single NPN bipolar transistor wired between FB and ground By pul...

Страница 15: ...V No synchronization between DSS and fault event Time Time Time Drv FB Calculating the VCC Capacitor As the above section describes the fall down sequence depends upon the VCC level i e how long does...

Страница 16: ...king about ms pulses the amount of injected charge Q I x t immediately latches the controller which brutally discharges its VCC capacitor If this VCC capacitor is of sufficient value its stored energy...

Страница 17: ...2500 Units Tape Reel NCP1201D60R2G SOIC 8 Pb Free NCP1201P100 PDIP 8 50 Units Rail NCP1201P100G PDIP 8 Pb Free NCP1201D100R2 SOIC 8 2500 Units Tape Reel NCP1201D100R2G SOIC 8 Pb Free For information o...

Страница 18: ...U 751 06 ARE OBSOLETE NEW STANDARD IS 751 07 A B S D H C 0 10 0 004 DIM A MIN MAX MIN MAX INCHES 4 80 5 00 0 189 0 197 MILLIMETERS B 3 80 4 00 0 150 0 157 C 1 35 1 75 0 053 0 069 D 0 33 0 51 0 013 0 0...

Страница 19: ...nded or authorized for use as components in systems intended for surgical implant into the body or other applications intended to support or sustain life or for any other application in which the fail...

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