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TC18C46 Datasheet(PDF) 4 Page - TelCom Semiconductor, Inc |
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TC18C46 Datasheet(HTML) 4 Page - TelCom Semiconductor, Inc |
4 / 10 page 4-104 TELCOM SEMICONDUCTOR, INC. Current Sense Section Amplifier Gain (Notes 2, 3) 2.7 3 3.6 2.7 3 3.4 V/V Max Differential (Note 2) 1.1 1.5 1.8 1.1 1.5 1.8 V Input Signal (VPin 4-VPin 3) Input Offset Voltage (Note 2) 0.4 0.65 0.85 0.4 0.65 0.85 V CMRR VCM = 1V to 12V, (Note 2) 40 60 — 40 60 — dB PSRR VIN = 8V to 16V, (Note 2) 40 60 — 40 60 — dB Input Bias Current (Note 1) — ±1 ±100 — ±1 ±100 nA Input Offset Current (Note 1) — ±0.1 ±2— ±0.1 ±2nA Input Common Mode Range (Note 1) 0 — 11 0 — 11 V Delay to Outputs Tf = 25°C, (Note 1) 150 225 400 150 225 400 nsec Current Limit Adjust Section Current Limit Voltage Offset — ±1 ±25 — ±1 ±25 mV Input Impedance (Shutdown Unlatched) 3 3.5 4 3 3.5 4 k Ω Shutdown Terminal Section Threshold Voltage 320 360 400 320 360 400 mV Input Voltage Range (Note 1) 0 — VIN 0 — VIN V Min Latching (Note 4) 140 — — 140 — — µA Current (IPin 1) Max Non-Latching (Note 5) — — 60 — — 65 µA Current (IPin1) Min Pulse Width (Note 1) 100 50 — 100 50 — nsec Delay to Outputs (Note 1) 125 250 400 125 250 400 nsec Output Section Output Low Level rDS (ON) ISINK = 20mA — 10 20 — 10 20 Ω Output High Level rDS (ON) ISOURCE = 20mA — 20 35 — 20 35 Ω Output Rise Time CL = 1 µF — 55 90 — 55 90 nsec Output Fall Time CL = 1 µF — 55 90 — 55 90 nsec Undervoltage Lockout Section Undervoltage Threshold 6.5 7 7.3 6.5 7 7.3 V Start Threshold 7.4 7.8 8 7.4 7.8 8 V Threshold Hysteresis 0.6 0.8 1 0.6 0.8 1 V Total Standby Current Supply Current — 1.2 2.5 — 1.2 2 mA Start-Up Current — 250 350 — 250 350 µA ELECTRICAL CHARACTERISTICS (Cont): 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 NOTES: 1. These parameters, although guaranteed over the recommended operating conditions, are not tested in production. 2. Parameter measured at trip point of latch with VPin 6 = VREF, VPin 16 = 0V. 3. Amplifier gain is defined as: 4. Current into Pin 1 guaranteed to latch circuit in shutdown state. 5. Current into Pin 1 guaranteed not to latch circuit in shutdown state. CMOS CURRENT MODE PWM CONTROLLERS TC18C46 TC28C46 TC38C46 G = ∆ VPin 7 ; ∆VPin 4 = 0V to 1V ∆VPin 4 |
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Descripción similar - TC18C46 |
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