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UCL64010DR Datasheet(PDF) 3 Page - Texas Instruments |
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UCL64010DR Datasheet(HTML) 3 Page - Texas Instruments |
3 / 19 page UCL64010 www.ti.com SLUS983 – OCTOBER 2009 ELECTRICAL CHARACTERISTICS VDD = 15 V, 0.1- μF capacitor from VDD to GND, 3.3-nF capacitor from SS to GND charged over 3.5 V, 500-Ω resistor from VSD to -0.1 V, FB = 4.8 V, LPM = not connected, 1-nF capacitor from GD to GND, PCS = GND, TA = –40°C to 105°C, (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OVERALL ISTARTUP Startup current VDD = VUVLO –0.3 V 12 25 μA ILPM Standby current VFB = 0 V 350 550 Not switching 2.5 3.5 IDD Operating current mA 130 kHz, QR mode 5.0 7.0 VDD clamp FB = GND, IDD = 10 mA 21 26 27 V UNDERVOLTAGE LOCKOUT VDD(uvlo) Startup threshold 10.3 13.0 15.3 Stop threshold 6.3 8 9.3 V ΔVDD(uvlo) Hysteresis 4.0 5.0 6.0 PWM (Ramp)(1) DMIN Minimum duty cycle VSS = GND, VFB = 2 V 0% DMAX Maximum duty cycle QR mode, fS = max, (open loop) 99% OSCILLATOR (OSC) fQR(max) Maximum QR and DCM frequency 117 130 143 fQR(min) Minimum QR and FFM frequency VFB = 1.3 V 32 40 48 kHz fSS Soft start frequency VSS = 2.0 V 32 40 48 dTS/dFB VCO gain TS for 1.6 V < VFB < 1.8 V –38 –30 –22 μs/V FEEDBACK (FB) RFB Feedback pullup resistor 12 20 28 k Ω VFB FB, no load QR mode 3.30 4.87 6.00 Low power mode ON threshold VFB threshold 0.3 0.5 0.7 Low power mode OFF threshold VFB threshold 1.2 1.4 1.6 V Low power mode hysteresis VFB threshold 0.9 Burst hysteresis VFB during low power mode 0.13 0.25 0.42 LOW POWER MODE RDS(on) LPM on resistance VLPM = 1 V 1.0 2.4 3.8 k Ω ILPM(leakage) LPM leakage/off current VFB = 0.44 V, VSTATUS = 15 V –0.1 2.0 μA PEAK CURRENT SENSE (PCS)(1) APCS(FB) Gain, FB = ΔVFB / ΔVPCS QR mode 2.5 V/V Shutdown threshold VFB = 2.4 V, VSS = 0 V 1.13 1.25 1.38 V PCS to output delay time (power limit) PCS = 1.0 VPULSE 175 300 ns PCS to output delay time (over current PCS = 1.45 VPULSE 100 150 fault) PCS discharge impedance PCS = 0.1 V, VSS = 0 V 25 115 250 Ω VPCS(os) PCS offset SS mode, VSS ≤ 2.0 V, via FB 0.35 0.40 0.45 V (1) RPCST and CPCST are not connected in the circuit for maximum and minimum duty cycle tests, current sense tests and power limit tests. Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): UCL64010 |
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