Datasheet LT3743 (Analog Devices) - 4
| Hersteller | Analog Devices |
| Beschreibung | High Current Synchronous Step-Down LED Driver with Three-State Control |
| Seiten / Seite | 28 / 4 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| Dateiformat / Größe | PDF / 535 Kb |
| Dokumentensprache | Englisch |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
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LT3743
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, VEN/UVLO = 5V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS PWMG Control Signals
CTRL_SEL High to PWMGL Low Delay 10 40 ns CTRL_SEL High to PWMGH High Delay 150 200 ns CTRL_SEL Low to PWMGH Low Delay 30 60 ns CTRL_SEL Low to PWMGL High Delay 170 220 ns PWMGH and PWMGL Pull-up Impedance 3.2 Ω PWMGH and PWMGL Pull-Down Impedance 1.75 Ω
Current Control Loop gm Amp
Offset Voltage V + – SENSE = 4V, VSENSE = 4V l –3 0 3 mV Input Common Mode Range VCM(LOW) 0 V VCM(HIGH) VCM(HIGH) Measured from VIN to VCM 2 V Output Impedance 3.5 MΩ gm 375 475 625 µA/V Differential Gain 1.7 V/mV
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings to 125°C operating junction temperature range are assured by design, may cause permanent damage to the device. Exposure to any Absolute characterization and correlation with statistical process controls. The Maximum Rating condition for extended periods may affect device LT3743I is guaranteed to meet performance specifications over the –40°C reliability and lifetime. to 125°C operating junction temperature range.
Note 2:
The LT3743E is guaranteed to meet performance specifications
Note 3:
The minimum on and off times are guaranteed by design and are from 0°C to 125°C junction temperature. Specifications over the –40°C not tested. 3743fe 4 For more information www.linear.com/LT3743 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, VEN/UVLO = 5V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS PWMG Control Signals
CTRL_SEL High to PWMGL Low Delay 10 40 ns CTRL_SEL High to PWMGH High Delay 150 200 ns CTRL_SEL Low to PWMGH Low Delay 30 60 ns CTRL_SEL Low to PWMGL High Delay 170 220 ns PWMGH and PWMGL Pull-up Impedance 3.2 Ω PWMGH and PWMGL Pull-Down Impedance 1.75 Ω
Current Control Loop gm Amp
Offset Voltage V + – SENSE = 4V, VSENSE = 4V l –3 0 3 mV Input Common Mode Range VCM(LOW) 0 V VCM(HIGH) VCM(HIGH) Measured from VIN to VCM 2 V Output Impedance 3.5 MΩ gm 375 475 625 µA/V Differential Gain 1.7 V/mV
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings to 125°C operating junction temperature range are assured by design, may cause permanent damage to the device. Exposure to any Absolute characterization and correlation with statistical process controls. The Maximum Rating condition for extended periods may affect device LT3743I is guaranteed to meet performance specifications over the –40°C reliability and lifetime. to 125°C operating junction temperature range.
Note 2:
The LT3743E is guaranteed to meet performance specifications
Note 3:
The minimum on and off times are guaranteed by design and are from 0°C to 125°C junction temperature. Specifications over the –40°C not tested. 3743fe 4 For more information www.linear.com/LT3743 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts