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LM2633 Fiches technique(PDF) 10 Page - Texas Instruments |
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LM2633 Fiches technique(HTML) 10 Page - Texas Instruments |
10 / 51 page LM2633 SNVS139D – AUGUST 2000 – REVISED MAY 2013 www.ti.com ELECTRICAL CHARACTERISTICS VCC = +15V unless otherwise indicated under the Conditions column. Typicals and limits appearing in plain type apply for TA = TJ = +25°C. Limits appearing in boldface type apply over 0°C to +125°C. Symbol Parameter Conditions Min Typ(1) Max Units SYSTEM ΔVout1_load Channel 1 Load VCOMP1 moves from 0.5V to 1.5V, 0 mV Regulation(2) VID4:0=01101 ΔVout2_load Channel 2 Load VCOMP2 moves from 0.5V to 1.5V 1.5 mV Regulation(2) ΔVfb Line Regulation (for the two 5.0V ≤ VIN ≤ 30V, VID4:0=01101 2 mV switching regulators) Ivin Input Supply Current with VFB = 0.9V, no VLIN5 DC Current (3) 1.5 2.4 mA the Switching Channels ON Ivin_sd Input Supply Current with VON/SS1 = VON/SS2 = 0V (4) 10 18 µA the IC Shut Down Vvlin5 VLIN5 Output Voltage IVLIN5 = 0 to 25mA, 5.5V < VIN < 30V 4.7 5.0 5.3 V Iilim_pos ILIM1 and ILIM2 Pins Sink 8 10 12 µA Current Vilim_neg Negative Current Limit 45 mV (SWx vs PGNDx voltage) Iss_sc Soft Start Charge Current 0.5 2.25 5 µA Iss_sk Soft Start Sink Current In UVLO or thermal shutdown 2 µA Vss_on Soft Start ON Threshold 1.2 V Vssto Soft Start Timeout See(5) 3.5 V Threshold Vuvd UV_DELAY Threshold VLIN5 = 5V(6) 2.1 V Idelay UV_DELAY Source Current 1.0 5 9.0 µA Ivid VID4:0 Internal Pull Up 6 13 µA Current Vuvlo_thr VIN Under-voltage Lockout Rising Edge 4.2 4.5 V (UVLO) Threshold Vuvlo_hys VIN UVLO Hysteresis 300 mV Vuvp1 Channel 1 VOUT Under- voltage Shutdown Latch VID4:0 = 01100 73 80 83 %VOUT Threshold(Measured at the FB1) Vuvp2, 3 Channels 2 and 3 VOUT Undervoltage Shutdown VID4:0 = 01100 76 80 86 %VOUT Latch Threshold (Measured at the FB2 and FB3) Vovp1 VOUT Overvoltage Shutdown Latch Threshold 110 114 119 %VOUT for Channel 1 (Measured at the FB1) Vovp2 VOUT Overvoltage Shutdown Latch Threshold 109 112 115 %VOUT for Channel 2 (Measured at the FB2) Vlreg_thr VOUT Low Regulation Comparator Enable 91.5 %VOUT Threshold for Channels 1 and 2 (1) A typical is the center of characterization data taken with TA = TJ = 25°C. Typical data are not ensured. (2) This test simulates heavy load condition by changing COMP pin voltage. (3) This parameter indicates how much current the LM2633 is drawing from the input supply when it is functioning but not driving external MOSFETs or a bipoloar transistor. (4) This parameter indicates how much current the LM2633 is drawing from the input supply when it is completely shut off. (5) When ON/SS1,2 pins are charged above this voltage, the under voltage protection feature is enabled. (6) Above this voltage, the under-voltage protection is enabled. 10 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM2633 |
Numéro de pièce similaire - LM2633_15 |
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Description similaire - LM2633_15 |
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