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Details, datasheet, quote on part number:NCP1002T
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| Part: | NCP1002T |
| Category: | Power Management => AC-DC Controllers/Converters => AC-DC Switching => Off-Line Regulators |
| Description: | Fixed-100kHz Switching Regulator With 700V / 1.5A Switch, 700V Maximum Startup, Zero Duty For Standby And Ovp, Package: Pdip, Pins=8 |
| Company: | ON Semiconductor |
| Datasheet: | Download NCP1002T datasheet File size : 120 kB |
| Request For quote: | Find where to buy NCP1002T
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Datasheet text preview:
NCP1000, NCP1001, NCP1002 Integrated Off-Line Switching Regulator
The NCP1000 through NCP1002 series of integrated switching regulators, combine a fixed frequency PWM controller with an integrated high voltage power switch circuit. This chip allows for simple design and minimal parts count for very low cost applications which utilize an ac input. This chip is designed to power a single ended topology, typically a discontinuous mode flyback, with secondary side sensing. The internal high voltage switch circuit and start-up circuit can function in continuous operation over a wide range of inputs, from 85 Vac to 265 Vac, and thus can be used in any existing power system in the world. Though inexpensive, these devices include a number of features such as undervoltage lockout, over-temperature protection, bandgap reference and leading edge blanking that make them an excellent value.
Features http://onsemi.com MARKING DIAGRAMS
TO-220 T SUFFIX CASE 314P NCP100xT AWLYWW 12 34 5 Pin: 1. 2. 3. 4. 5. VCC Feedback Input 1 Ground Startup Power Switch Circuit 8 DIP-8 P SUFFIX CASE 626 1 Pin: 1. 2. 3, 6-8 4. 5. 1 VCC Feedback Input Ground Startup Power Switch Circuit NCP100xP AWL YYWW 5
· · · · · · · ·
Highly Integrated Solution Operates Over Universal Input Voltage Range (85 Vac to 265 Vac) On-board 700 Volt Power Switch Circuit Minimal External Parts Required Input Undervoltage Lockout with Hysteresis Very Low Standby Current No Minimum Load Requirement Opto Fail-safe Shutdown Circuit
8
Typical Applications
· Cell Phone Chargers · Wall Adapters · On-board AC-DC Converters
VCC INTERNAL BIAS UVLO & OPTO FAIL-SAFE FEEDBACK INPUT + - GND PWM COMPARATOR PWM CONTROL & POWER SWITCH CIRCUIT START-UP
START-UP CIRCUIT POWER SWITCH CIRCUIT
x A WL YY, Y WW
= Device Number 0, 1, or 2 = Assembly Location = Wafer Lot = Year = Work Week
ORDERING INFORMATION*
Ipk Ron Typ Max (A) (W) 0.5 1.0 1.5 0.5 1.0 1.5 18 9 6 18 9 6
Device NCP1000P NCP1001P
Package DIP-8 DIP-8 DIP-8 TO-220 TO-220 TO-220
Shipping 50 Units/Rail 50 Units/Rail 50 Units/Rail 50 Units/Rail 50 Units/Rail 50 Units/Rail
OSCILLATOR
NCP1002P NCP1000T
Figure 1. Simplified Block Diagram
NCP1001T NCP1002T
*Consult factory for additional optocoupler fail-safe latching, frequency, and current limit options.
© Semiconductor Components Industries, LLC, 2003
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March, 2003 - Rev. 6
Publication Order Number: NCP1000/D
NCP1000, NCP1001, NCP1002
Functional Pin Description
Pin (DIP-8) 1 Pin (TO-220) 1 Function VCC Description Positive input supply voltage. This pin is connected to an external capacitor for energy storage. The start-up circuit sources current out of this pin to initially charge the capacitor. When the voltage reaches the upper threshold limit of the undervoltage lockout circuit, the start-up circuit will turn off, and the power supply will begin operation. Power is then supplied to the chip via this pin, by virtue of the auxiliary winding. The error signal from the optocoupler is fed into this input. It is loaded with a 2.7 kW resistor which converts the opto current into a voltage. There is a 7.0 kHz, single pole, low pass filter between this pin and the error amp input. A 10 volt clamp is also connected to this pin to protect the device from ESD damage or overvoltage conditions. Ground reference pin for the circuit. This pin is part of the integrated circuit leadframe and is electrically common with the tab on the TO-220, and is an integral part of the heat flow path on the DIP-8 package. This pin is connected to the bulk DC input voltage supply. It feeds an internal current source that initially charges up the VCC capacitor on power up. The internal power switch circuit is connected between this pin and ground. This pin connects directly to one end of the transformer primary winding.
2
2
Feedback Input
3, 6, 7, 8
3
Ground
4 5
4 5
Start-up Power Switch Circuit
MAXIMUM RATINGS (Notes 1 and 2)
Rating Power Switch Circuit (Pin 5) Drain Voltage Range Drain Current Peak During Transformer Saturation Power Supply Voltage Range (Pin 1) Feedback Input (Pin 2) Voltage Range Current Thermal Resistance P Suffix, Plastic Package Case 626 Junction to Lead Junction to Air, 2.0 Oz. Printed Circuit Copper Clad 0.36 Sq. Inch 1.0 Sq. Inch T Suffix, Plastic Package Case 314D Junction to Case Junction to Air Operating Junction Temperature Storage Temperature Symbol VDS IDS(pk) Vclp VI(fb) lfb Value *0.3 to 700 2.0 Ilim Max *0.3 to 10 *0.3 to 10 100 Unit V A V V mA °C/W Rq J L Rq J A 5.0 45 35 Rq J C Rq J A TJ Tstg 2.0 65 *40 to 125 *65 to +150 °C °C
1. This device series contains ESD protection and exceeds the following tests: Pins 1-3: Human Body Model 2000 V per MIL-STD-883, Method 3015. Machine Model Method 200 V. Pins 4 and 5 are the HV start-up and the drain of the LDMOS device, rated only to the max rating of the part , or 700 V. 2. This device contains Latch-up protection and exceeds $200 mA per JEDEC Standard JESD78.
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NCP1000, NCP1001, NCP1002
ELECTRICAL CHARACTERISTICS (VCC = 8.6 volts, pin 2 grounded, TJ = 25°C for typical values. For min/max values, TJ is the operating junction temperature that applies.)
Characteristics OSCILLATOR Frequency (lfb = 1.1 mA) (Note 4) (Figure 7) TJ = 25°C TJ = 0°C to 125°C TJ = -40°C to 125°C PWM COMPARATOR Feedback Input PWM Gain (TJ = 25°C) (lfb = 1.20 mA to 1.30 mA) (Figure 2) Gain Temperature Coefficient (TJ = -40°C to TJ = 125°C) (Note 4) PWM Duty Cycle (Pin 2) Maximum (lfb = 0.8 mA) Zero Duty Cycle Current PWM Ramp Peak Valley START-UP CONTROL AND VCC LIMITER Undervoltage Lockout (Figure 8) VCC Clamp Voltage (ICC = 4.0 mA) Start-Up Threshold (Vclp Increasing) Minimum Operating Voltage After Turn-On Hysteresis Start-Up Circuit, Pin 1 Output Current (Pin 4 = 50 V) VCC = 0 V VCC = 8.0 V Minimum Start-Up Voltage (VCC = Vclp(on) -0.2 V, Istart = 0.5 mA) Auto Restart (CPin 1 = 47 mF, Pin 4 = 50 V) (Note 5) Duty Cycle Frequency Start-Up Circuit Breakdown Voltage (I = 25 mA) (Note 5) Start-Up Circuit Leakage Current (Pin 4 = 700 VDC) TJ = 25°C TJ = -40°C to 125°C V Vclp Vclp(on) Vclp(min) VH Istart 2.0 1.5 Vstart Drst frst VBR(st) Ileak 20 30 40 75 4.0 700 3.4 2.6 14.7 5.0 1.2 4.2 4.2 20 6.0 V % Hz V mA 8.3 8.2 7.2 8.55 8.5 7.5 1.0 8.9 8.8 8.0 mA Av DAv D(max) Ifb Vrpk Vrvly -1 10 68 1.8 *136 0.2 72 4.1 2.7 -170 74 %/mA (%/mA)/°C % mA V fOSC 90 85 75 100 110 115 115 kHz Symbol Min Typ Max Unit
3. Maximum package power dissipation limits must be observed. 4. Tested junction temperature range for this device series: Tlow = -40 °C, Thigh = +125°C 5. Guaranteed by design only.
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