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LM2594M-5.0 Folha de dados(PDF) 4 Page - Texas Instruments |
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LM2594M-5.0 Folha de dados(HTML) 4 Page - Texas Instruments |
4 / 40 page LM2594, LM2594HV SNVS118C – DECEMBER 1999 – REVISED APRIL 2013 www.ti.com LM2594/LM2594HV-5.0 Electrical Characteristics Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range Symbol Parameter Conditions LM2594/LM2594HV-5.0 Units (Limits) Typ(1) Limit(2) SYSTEM PARAMETERS(3) Test Circuit Figure 20 VOUT Output Voltage 7V ≤ VIN ≤ VINmax, 0.1A ≤ ILOAD ≤ 0.5A 5.0 V 4.800/4.750 V(min) 5.200/5.250 V(max) η Efficiency VIN = 12V, ILOAD = 0.5A 82 % (1) Typical numbers are at 25°C and represent the most likely norm. (2) All limits ensured at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits are 100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL). (3) External components such as the catch diode, inductor, input and output capacitors, and voltage programming resistors can affect switching regulator system performance. When the LM2594/LM2594HV is used as shown in the Figure 20 test circuit, system performance will be as shown in system parameters section of Electrical Characteristics. LM2594/LM2594HV-12 Electrical Characteristics Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range Symbol Parameter Conditions LM2594/LM2594HV-12 Units (Limits) Typ(1) Limit(2) SYSTEM PARAMETERS(3) Test Circuit Figure 20 VOUT Output Voltage 15V ≤ VIN ≤ VINmax, 0.1A ≤ ILOAD ≤ 0.5A 12.0 V 11.52/11.40 V(min) 12.48/12.60 V(max) η Efficiency VIN = 25V, ILOAD = 0.5A 88 % (1) Typical numbers are at 25°C and represent the most likely norm. (2) All limits ensured at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits are 100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL). (3) External components such as the catch diode, inductor, input and output capacitors, and voltage programming resistors can affect switching regulator system performance. When the LM2594/LM2594HV is used as shown in the Figure 20 test circuit, system performance will be as shown in system parameters section of Electrical Characteristics. LM2594/LM2594HV-ADJ Electrical Characteristics Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range Symbol Parameter Conditions LM2594/LM2594HV-ADJ Units (Limits) Typ(1) Limit(2) SYSTEM PARAMETERS(3) Test Circuit Figure 20 VFB Feedback Voltage 4.5V ≤ VIN ≤ VINmax, 0.1A ≤ ILOAD ≤ 0.5A 1.230 V 1.193/1.180 VOUT programmed for 3V. Circuit of Figure 20 V(min) 1.267/1.280 V(max) η Efficiency VIN = 12V, ILOAD = 0.5A 80 % (1) Typical numbers are at 25°C and represent the most likely norm. (2) All limits ensured at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits are 100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL). (3) External components such as the catch diode, inductor, input and output capacitors, and voltage programming resistors can affect switching regulator system performance. When the LM2594/LM2594HV is used as shown in the Figure 20 test circuit, system performance will be as shown in system parameters section of Electrical Characteristics. 4 Submit Documentation Feedback Copyright © 1999–2013, Texas Instruments Incorporated Product Folder Links: LM2594 LM2594HV |
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