IP1P125 SEME-LAB | Alldatasheet

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Technical content

Prelim.5/00Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. REGULATING PULSE WIDTH MODULATORS

FEATURES

  • Pin Compatible with 1525A Series  Low Output Crossover Current  Fixed 100ns Deadtime  100Hz to 500kHz Operating Frequencyrange  5.1 volt ± 1% Reference  Oscillator Sync. Terminal  Soft Start  Undervoltage Lockout  Latching PWM IN Input Voltage Collector Voltage Logic Inputs Analogue Inputs Output Current, Source or Sink Reference Output Load Current Oscillator Charging Current P D Power Dissipation T A = 25°C Derate @ TA > 50°C PD Power Dissipation T C = 25°C Derate @ TC > 25°C TJ Operating Junction Temperature TSTG Storage Temperature Range TL Lead Temperature (soldering, 10 seconds) +40V +40V –0.3 to +5.5V –0.3 to +VIN 500mA Internally Limited 5mA 1000mW 10mW/°C 2000W 16mW/°C –55 to +150°C –65 to +150°C +300°C ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated) TOP VIEW J Package – 16 Pin Ceramic DIP N Package – 16 Pin Plastic DIP D Package – 16 Pin Plastic (300) SOIC INV. INPUT N. I. INPUT OSC. OUTPUT SOFT START DISCHARGE SYNC VREF VIN OUTPUT B GROUND SHUTDOWN COMPENSATION CV OUTPUT A CT RT Part J –Pack N –Pack D –16 Temp. Number 16 Pin 16 Pin 16 Pin Range IP1P125J ✔ -55 to +125°C IP3P125D ✔ 0 to + 70°C IP3P125J ✔ 0 to +70°C IP3P125N ✔ 0 to +70°C Order Information Note: To order, add the package identifier to the part number. eg. IP1P125J

Prelim.5/00Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. +8 to + +4.5 to +35V 0 to 100mA 0 to 400mA 0 to 20mA 100Hz to 500kHz 1.5k/G57 to 200k/G57 470pF to 0.1/G6D F 0 to 500/G57 –55 to +125°C –25 to + 85°C 0 to +70°C RECOMMENDED OPERATING CONDITIONS VIN Input Voltage Collector Voltage Sink/Source Load Current (Steady State) Sink/Source Load Current (Peak) Reference Load Current Oscillator Frequency Range R T Oscillator Timing Resistor C T Oscillator Timing Capacitor Deadtime Resistor Range Operating Ambient Temperature Range IP1525A / IP1527A IP2525A / IP3527A IP3525A / IP3527A

DESCRIPTION

The IP1P125 series of pulse width modulator intergrated circuits offers high speed performance optimized for MOSFET drive. Pin compatible with SG1525A, the IP1P125 features low crossover current through the output transistors as well as 95% total usable output pulse width up to 500KHz. High speed latched shutdown is included as well as a pre- cision 5.1 volt rference, error amp, oscillator, latched PWM coparator, totem-pole output drivers, soft-start and undervolt- age lockout.

Temperature Stability note5 Total Output Short Circuit Current Output Noise Voltagenote5 Long Term Stability note5 Initial Accuracy Voltage Stability Temperature Stability note5 Minimum Frequency Maximum Frequency Current Mirror Clock Amplitude Clock Width Sync Threshold Sync Input Current Input Offset Voltage Input Bias Current Input Offset Current DC Open Loop Gain Gain Bandwidth Product T J = 25°C VIN = 8 to 35V IL = 0 to 20mA Over Operating Range V IN = 8 to 35V, IL = 0 to 20mA VREF = 0

10 Hz /GA3 f /GA3 10kHz

VIN = 8 to 35V Over Operating Range R T = 200k/G57 C T = 0.1/G6D F R T = 2k/G57 C T = 470pF RD = 0/G57 IRT = 2mA Output, PIN 4, CT = 0.1/G6D F Output, PIN 4, CT = 0.1/G6D F Sync Voltage = 3.5V V cm = 1.5 to 5.2V Vcm = 1.5 to 2.5V Vcm = 1.5 to 5.2V /G44/G20 V0 = 1 to 3V ,RL /GB3 10 M/G57 note5 IP1P125 IP3P125 Prelim.5/00Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. IP1P125 IP3P125 ELECTRICAL CHARACTERISTICS (TJ = Over Operating Temperature Range unless otherwise stated) 5.0 5.1 5.2 11 5 52 5 15 20 4.95 5.25 25 70 120 40 200 15 0 37.6 40 42.4 0.1 2 80 120 900 1.7 2.0 2.2 3.0 4.0 0.3 0.5 1.0 1.2 2.0 2.8 1.0 2.5 21 0 11 0 0.1 1 60 80 1 3.5 5.05 5.10 5.15 11 0 51 5 15 50 5.0 5.2 25 70 120 40 200 11 0 37.6 40 42.4 0.1 0.5 80 120 900 1.7 2.0 2.2 3.0 4.0 0.3 0.5 1.0 1.2 2.0 2.8 1.0 2.5 0.1 5 11 0 0.1 1 60 80 1 3.5 V mV mV V mA /G6D Vrms mV kHr kHz Hz kHz mA V /G6D s V mA mV /G6D A dB MHz REFERENCE SECTION OSCILLATOR SECTION 2 ERROR AMPLIFIER SECTION 3

VCM = 1.5 to 5.2V VIN = 8 to 35V VPIN1 – VPIN2 /GB3 150mV VPIN2 – VPIN1 /GB3 150mV Zero Duty Cycle Max. Duty Cycle V SHUTDOWN = 0V VSHUTDOWN = 2V To Outputs V SHUTDOWN = 2.5V PIN 10 to Output TJ = 25°C ISINK = 20mA ISINK = 100mA ISOURCE = 20mA ISOURCE = 100mA VC = 35V C L = 1nF T J = 25°C C L = 1nF T J = 25°C C L = 1nF T J = 25°C Output Low Level Output High Level Common Mode Rejection Supply Voltage Rejection Minimum Duty Cycle Maximum Duty Cycle Input Threshold Input Threshold Input Bias Current Soft Start Current Soft Start Low Level Shutdown Threshold Shutdown Input Current Shutdown Delay note5 Output Low Level Output High Level Collector Leakage Current Rise Time Fall Time Dead Time IP1P125 IP3P125 0.2 0.5 3.8 5.6 7.0 60 90 50 60 45 49 0.6 0.9 3.3 3.6 25 50 80 0.4 0.6 0.6 1.3 2.0 0.1 1.0 50 300 0.2 0.4 1.0 2.5 18 19 17 18 200 100 300 50 300 100 0.2 0.5 3.8 5.6 7.0 60 90 50 60 45 49 0.6 0.9 3.3 3.6 25 50 80 25 50 80 0.4 0.6 0.6 1.3 2.0 0.1 1.0 50 300 0.2 0.4 0.2 0.4 1.0 2.5 18 19 17 18 200 100 300 50 300 100 V dB V /G6D A /G6D A V mA ns V V V ns IP1P125 IP3P125 Prelim.5/00Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. NOTES note5 These parameters, although guaranteed over the recommended conditions are not 100% tested in production. ELECTRICAL CHARACTERISTICS (TJ = Over Operating Temperature Range unless otherwise stated) PWM COMPARATOR ERROR AMPLIFIER SECTION (cont.) 3 SHUTDOWN SECTION OUTPUT DRIVERS (each output) 4