 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| NTE7159 Integrated Circuit Switch Mode Power Supply Controller Description: The NTE7159 is a monolithic integrated circuit in a 16-Lead DIP type package designed for use as the primary part of an off-line switching mode power supply. All functions required for SMPS control under normal operating, transient or abnormal conditions are provided. The capability of working according to the "master-slave" concept, or according to the "primary regulation" mode makes the NTE7159 very flexible and easy to use. This is particularly true for TV receivers where the IC provides an attractive and low cost solution (no need of stand-by auxiliary power supply). Features: D Positive and Negative Current Up To 1.2A and -2A D Low Start-Up Current D Direct Drive of the Power Transistor D Two Levels Transistor Current Limitation D Double Pulse Suppression D Soft-Starting D Under and Overvoltage Lock-Out D Automatic Stand-By Mode Recognition D Large Power Range Capability in Stand-By (Burst Mode) D Internal PWM Signal Generator Absolute Maximum Ratings: Power Supply (V16-V4, V5, V12, V13), VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V Output Stage Power Supply (V15-V4, V5, V12, V13), V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V Output Current, IOUT Positive (Source Current) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A Negative (Sink Current) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5A Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150C StorageTemperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +150C Thermal Resistance, Junction-to-Case (Note 1), RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11C/W Thermal Resistance, Junction-to-Ambient (Note 1), RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . . 45C/W Note 1. Soldered on a 35m, 40cm2 board copper area. Recommended Operating Conditions: Parameter Power Supply Positive Output Current (Source Current) Negative Output Current (Sink Current) Average Positive Output Current Average Negative Output Current Operating Frequency Input Pulses Amplitude (Pin2) Oscillator Resistor Range Oscillator Capacitor Range Soft-Starting Capacitor Range Overload Integration Capacitor Ratio C2/C1 (C2 must be C1) Operating Ambient Temperature Symbol VCC IOUT+ IOUT- IOUT+ IOUT- Foper VIN ROSC COSC C1 C2 C2/C1 TA Min VCCstop - - - - 10 1.5 20 0.47 0.047 0.047 1 -20 Typ 12 - - - - - 2.5 - - 1.0 1.0 - - Max VCCmax 1.2 2.0 0.6 0.6 100 4.5 150 4.7 - - - +70 C Unit V A A A A kHz V k nF F F Electrical Characteristics: (TA = +25C, VCC = 12V unless otherwise specified) Parameter Power Supply Starting Voltage Stopping Voltage Hysteresis Starting Current Supply Current Overvoltage Threshold on VCC Supply Current After Overvoltage Detection Oscillator/PWM Section Accuracy Error Amplifier Section Open Loop Gain Unity Gain Frequency Short Circuit Output Current E Input Bias Current Internal Voltgage Reference Input Section IN Input Threshold IS Input Threshold IN Input Bias Current IS Input Bias Current VIN VIS IBIN IBIS Pin2 Pin1 0.60 - - - 0.85 0.15 0.3 0.4 1.20 - - - V V A A AVO Fug ISC IBE VREF Pin7 Connected to GND Pin6 Connected to Error Amplifier Input and Not Directly Accessible - - - - 2.34 75 550 2 0.08 2.49 - - - - 2.64 dB kHz mA A V F/F ROSC = 68k, COSC = 1nF - 10 - % VCC(start) VCC(stop) ICC(start) ICC VCC(max) ICC(over) VCC = 17V VCC increasing VCC decreasing VCC = 9V VCC = 12V 9.3 6.4 2.4 - - 15.0 26 10.3 7.4 2.9 0.7 7.5 15.7 35 11.3 8.4 - 1.4 15.0 - 42 V V V mA mA V mA Symbol Test Conditions Min Typ Max Unit Hyst VCC VCC(start) - VCC(stop) Electrical Characteristics (Cont'd): (TA = +25C, VCC = 12V unless otherwise specified) Parameter Current Limitation Section First Current Limitation Threshold Second Current Limitation Threshold Thresholds Difference Lock-Out Threshold on Pin2 Capacitor C2 Discharge Current Capacitor C2 Charge Current Maximum Input Bias Current VIM1 VIM2 VIM VC2 IDC2 ICC2 IBI(max) Pin3 VIM2 - VIM1 558 837 - 2.25 - - - 600 900 300 2.55 10 45 0.2 642 963 - 2.85 - - - mV mV mV V A A A Symbol Test Conditions Min Typ Max Unit Pin Connection Diagram Transformer Demagnetizatin 1 Sensing Input Secondary Pulses Input 2 Power Transistor Current 3 Limitation Input GND 4 GND 5 Error Amplifier Input (Inverting) 6 Error Amplifier Output 7 Overload Integration Capacitor 8 16 Power Supply 15 Positive Output Stage Supply 14 Power Output 13 GND 12 GND 11 Oscillator Resistor 10 Oscillator Capacitor 9 Soft-Start Capacitor 16 9 1 8 .787 (20.0) Max .280 (7.1) .201 (5.1) .100 (2.54) .130 (3.3) Min .335 (8.5) |
Price & Availability of NTE7159
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |