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LM3263 Scheda tecnica(PDF) 5 Page - Texas Instruments |
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LM3263 Scheda tecnica(HTML) 5 Page - Texas Instruments |
5 / 40 page LM3263 www.ti.com SNVS837 – JUNE 2013 ELECTRICAL CHARACTERISTICS (1) (2) (3) Limits in standard typeface are for TA = TJ = 25°C. Limits in boldface type apply over the full operating ambient temperature range ( −30°C ≤ TJ = TA ≤ +90°C). Unless otherwise noted, specifications apply to the Typical Application Diagram with VBATT = 3.8V (=PVIN = SVDD = PACB), VIO = 1.8V. Symbol Parameter Condition Min Typ Max Units VFB,MIN Feedback voltage at minimum setting VSET[7:0] = 1Bh, SMPS_CFG[5] = 1b 0.350 0.4 0.450 V Feedback voltage at maximum VSET[7:0] = F0h, VBATT = 3.9V, VFB,MAX 3.492 3.6 3.708 setting SMPS_CFG[5] = 0b ISHDN Shutdown supply current SW = 0V, VIO = 0V(4) 0.02 4 IL-PWR Low-power mode supply current VSET[7:0] = 00h 0.225 µA IQ-PFM PFM mode supply current into SVDD No switching(5), SMPS_CFG[5] = 1b 360 425 IQ PWM PWM mode supply current No switching(5), SMPS_CFG[5] = 0b 1240 1400 ILIM, PFET Transient Positive transient peak current limit 1.9 2.1 ILIM, PFET Steady- Positive steady-state peak current 1.35 1.45 1.65 State limit VSET[7:0] = 64h(6) A Positive Active Current Assist peak ILIM, P-ACB 1.4 1.7 2.0 current limit ILIM,NFET NFET current limit VSET[7:0] = A7h(6) −1.50 FOSC Average Internal oscillator frequency VSET[7:0] = A7h 2.43 2.7 2.97 MHz IVIO-IN VIO voltage average input current Average during a 26 MHz 1.25 mA VIORST RFFE I/O voltage reset voltage VIO toggled low 0.45 V IINVIO VIO reset current VIO = 0.45V −1.0 1.0 µA IIN SDATA, SCLK input current VIO = 1.95V −1.0 1.0 Input high-level threshold SDATA, VIH 0.4* VIO 0.7 * VIO SCLK VIL Input low-level threshold SDATA, 0.3 * VIO 0.6 * VIO V SCLK VIH-GPO Input high-level threshold GPO1 1.35 VIL-GPO Input low-level threshold GPO1 0.67 VOH Output high-level threshold SDATA ISDATA = 2mA VIO * 0.8 VIO + 0.01 VOL Output low-level threshold SDATA ISDATA = –2mA VIO * 0.2 V VOH-GPO Output high-level threshold GPO VIO - 0.15 VIO + 0.1 IOUT = ±200 µA VOL-GPO Output low-level threshold GPO -0.4 0.3 VSET-LSB Output voltage LSB VSET[7:0] = A7h to A8h 15 mV (1) All voltages are with respect to the potential at the GND pins. (2) Min and Max limits are specified by design, test, or statistical analysis. (3) The parameters in the electrical characteristics table are tested under open loop conditions at PVIN = SVDD = PACB = 3.8V. (4) Shutdown current includes leakage current of PFET. (5) Iq specified here is when the part is not switching. (6) Current limit is built-in, fixed, and not adjustable. Copyright © 2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM3263 |
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