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LM2670 Folha de dados(PDF) 6 Page - Texas Instruments |
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LM2670 Folha de dados(HTML) 6 Page - Texas Instruments |
6 / 38 page 6 LM2670 SNVS036K – APRIL 2000 – REVISED JUNE 2016 www.ti.com Product Folder Links: LM2670 Submit Documentation Feedback Copyright © 2000–2016, Texas Instruments Incorporated (1) All room temperature limits are 100% tested during production with TA = TJ = 25°C. All limits at temperature extremes are specified through correlation using standard Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL). (2) Typical values are determined with TA = TJ = 25°C and represent the most likely norm. 6.7 Electrical Characteristics – 12 V PARAMETER TEST CONDITIONS MIN(1) TYP(2) MAX(1) UNIT VOUT Output voltage VIN = 15 V to 40 V, 100 mA ≤ IOUT ≤ 5 A 11.76 12 12.24 V over the entire junction temperature range of operation –40°C to 125°C 11.64 12.36 η Efficiency VIN = 24 V, ILOAD = 5 A 94% 6.8 Electrical Characteristics – All Output Voltage Versions Specifications are for TA = TJ = 25°C unless otherwise specified. Unless otherwise specified VIN = 12 V for the 3.3 V, 5 V and Adjustable versions, and VIN = 24 V for the 12 V version. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DEVICE PARAMETERS IQ Quiescent current VFEEDBACK = 8 V for 3.3-V, 5-V, and ADJ versions, VFEEDBACK = 15 V for 12-V Versions 4.2 6 mA ISTBY Standby quiescent current ON/OFF pin = 0 V 50 100 µA over the entire junction temperature range of operation –40°C to 125°C 150 ICL Current limit 3.8 4.5 5.25 A over the entire junction temperature range of operation –40°C to 125°C 3.6 5.4 IL Output leakage current VIN = 40 V, soft-start pin = 0 V VSWITCH = 0 V 200 µA VSWITCH = –1 V 16 15 mA RDS(ON) Switch ON-resistance ISWITCH = 5 A 0.15 0.17 Ω over the entire junction temperature range of operation –40°C to 125°C 0.29 fO Oscillator frequency Measured at switch pin 260 kHz over the entire junction temperature range of operation –40°C to 125°C 225 280 D Duty cycle Maximum duty cycle 91% Minimum duty cycle 0% IBIAS Feedback bias current VFEEDBACK = 1.3 V, ADJ version only 85 nA VON/OFF ON/OFF threshold voltage 1.4 V over the entire junction temperature range of operation –40°C to 125°C 0.8 2 ION/OFF ON/OFF input current ON/OFF pin = 0 V 20 µA over the entire junction temperature range of operation –40°C to 125°C 45 FSYNC Synchronization frequency VSYNC (pin 5) = 3.5 V, 50% duty cycle 400 kHz VSYNC SYNC threshold voltage 1.4 V |
Nº de peça semelhante - LM2670 |
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Descrição semelhante - LM2670 |
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