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TEA2019 Datasheet(PDF) 3 Page - STMicroelectronics |
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TEA2019 Datasheet(HTML) 3 Page - STMicroelectronics |
3 / 7 page ELECTRICAL OPERATING CHARACTERISTICS Tamb =+25 oC, potentials referenced to ground (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit V + CC Positive Supply Voltage 6.6 8 15 V VCC Negative Supply Voltage –1 –3 –5 V VCC(start) Minimum positive supply voltage required for starting (V + CC rising) 6 6.6 V VCC(stop) Minimum positive voltage below which device stops operating (V + CC falling) 4.2 4.9 5.6 V ∆ V+CC Hysteresis on V+CC Threshold 0.7 1.1 1.6 V ICC(sb) Standby Supply Current Before Starting [V + CC <VCC(start)] 1 1.6 mA Vth (Ic) Current Limitation Threshold Voltage (pin 12) –1100 –1000 –880 mV R(Ic) Collector Current Sensing Input Resistance 1000 Ω IS Demagnetization Sensing Threshold 75 100 125 mV Demagnetization Sensing Input Current (pin 5 grounded) 1 µA τmax Maximum Duty Cycle 70 80 % AV Error Amplifier Gain 50 I + I Error Amplifier Input Current (non-inverting input) (pin 6) 2 µA V(REF) Internal Reference Voltage 2.3 2.4 2.5 V ∆V(REF) ∆T Reference Voltage Temperature Drift 10 –4 V/ °C TOSC Oscillator Free-running Period ( R = 59k Ω, C = 1.5nF) 60 65 70 µs ∆f OSC ∆T Oscillator Frequency Drift with Temperature (V + CC = + 8V) 0.05 %/ °C ∆fOSC ∆VCC Oscillator Frequency Drift with V + CC (+ 8V < V + CC < + 14V) 0.5 %/V ton(min) Minimum Conducting Time (Ct = 1nF) 2 µs SYNCHRONIZATION INPUT (pin 7) Symbol Parameter Min. Typ. Max. Unit V7pp Peak to Peak Sawtooth Voltage 0.5 2.5 V R(7) Input Impedance 20 k Ω PLL CHARACTERISTICS (see Test Circuit) Symbol Parameter Min. Typ. Max. Unit Frequency Sensitivity 100 Hz/ µA ∆T Capture Range (TOSC =64 µs Typ.) TOSC -TSYN min TSYN max -TOSC 5.5 4.5 8 8 µs µs SATURATION SENSING (pin 4) Symbol Parameter Min. Typ. Max. Unit V(4) Input Threshold 3.2 V I(4) Input Current (V4 > 3.2V) 50 µA Input Internal Resistance 1 k Ω RECOMMENDED OPERATING CONDITIONS Symbol Parameter Min. Typ. Max. Unit V + CC Positive Supply Voltage 8 V VCC Negative Supply Voltage 3 V IO Output Current 0.5 A Foper Operating Frequency 30 kHz THERMAL DATA Symbol Parameter Value Unit Rth (j-a) Junction-ambient Thermal Resistance 80 °C/W TEA2019 3/7 |
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