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TC38C46 Datasheet(PDF) 3 Page - TelCom Semiconductor, Inc |
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TC38C46 Datasheet(HTML) 3 Page - TelCom Semiconductor, Inc |
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3 / 10 page  4-103 TELCOM SEMICONDUCTOR, INC. 7 6 5 4 3 1 2 8 ELECTRICAL CHARACTERISTICS: unless otherwise stated, these specifications apply for TA = – 55°C to +125 °C for TC18C46; – 40°C to +85°C for the TC28C46; and 0°C to +70°C for the TC38C46; VIN = VDD = 16V; RT = 30.1k; CT = 270pF. TC18C46 TC28C46 TC38C46 Parameter Test Conditions Min Typ Max Min Typ Max Units Reference Section Output Voltage Tf = 25°C, IO = 1mA 5.0 5.1 5.2 5.0 5.1 5.2 V Line Regulation VIN = 8V to 16V — 4 20 — 4 20 mV Load Regulation IO = 1mA to 10mA — 4 20 — 4 20 mV Temp Coefficient Over Operating Range, (Note 1) — 0.2 0.5 — 0.2 0.5 mV/ °C Total Output Range Line, Load, and Temperature (Note 1) 4.97 — 5.24 4.94 — 5.26 V Long Term Drift Tf = 125°C, 1000 Hrs (Note 1) — 50 — — 50 — mV Short Circuit VREF = 0V 20 — 70 20 — 70 mA Output Current Output Noise Voltage 10 Hz ≤ f ≤ 10 kHz, Tf = 25°C (Note 1) — 22 — — 22 — µV(rms) Oscillator Section Initial Accuracy Tf = 25°C 96.5 102 106.5 96.5 101 106.5 kHz Voltage Coefficient VIN = 8V to 16V — .1 2.0 — .1 1.5 %/V Temp Coefficient Over Operating Range (Note 1) — .04 0.06 — .04 0.06 %/ °C Clock Ramp 1.2 2 3 1.2 2 3 mA Reset Current Osc Ramp Amplitude 3.6 3.8 4 3.6 3.8 4 V Sync Output High Level (Note 1) VDD —— VDD —— V –0.5 –0.5 Sync Output Low Level (Note 1) — — 0.5 — — 0.5 V Sync Input High Level Pin 8 = 0V, (Note 1) — 8.5 — — 8.5 — V Sync Input Low Level Pin 8 = 0V, (Note 1) — 8.5 5 — 8.5 5 V Sync Input Current Sync Voltage = 5.25V, Pin 8 = 0V — ±5 50 — ±5 50 nA Error Amp Section Input Offset Voltage — ±5 ±25 — ±5 ±25 mV Input Bias Current — ±10 ±100 — ±0.1 ±0.5 nA Input Offset Current — ±10 ±100 — ±0.1 ±0.5 nA Open Loop Voltage Gain ∆VO = 1V to 6V, RL = 100k 70 90 — 70 90 — dB Gain Bandwidth Product Tf = 25°C (Note 1) 0.7 1 — 0.7 1 — MHz CMRR VCM = 0V to 11V 70 90 — 70 90 — dB PSRR VIN = 8V to 16V 70 90 — 70 90 — dB Output Sink Current V(EA –) = 5V, V(EA+) = 4.9V, 2 4 — 2 4 — mA V(CMPTR) = 1.2V Output Source Current V(EA –) = 5V, V(EA+) = 5.1V, 5 10 — 5 10 — mA V(CMPTR) = 2.5V High Level Output Volt RL = (CMPTR) 5kΩ to GND, ACL = 300 4.75 4.9 5.1 4.75 4.9 5.1 V Low Level Output Volt RL = (CMPTR) 5kΩ to GND, ACL = 300 — 0.4 0.9 — 0.4 0.9 V Slew Rate 1.3 2 — 1.3 2 — V/ µsec CMOS CURRENT MODE PWM CONTROLLERS TC18C46 TC28C46 TC38C46 |
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