TLE6389G 50-1 Infineon Technologies, TLE6389G 50-1 Datasheet

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Step-Down DC/DC Controller Target Datasheet Features • Operation from 5V to 60V Input Voltage • 100% Maximum Duty Cycle • Efficiency >90% • Output Current • Less than 100µA Quiescent Current • 2µA Max Shutdown Current • ...

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Output capacitor requirements are also reduced, minimizing PC board area and system costs. The output voltage is preset at 5V (TLE6389-50) or 3.3V (TLE6389-33) and adjustable for the TLE6389. ...

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Pin No Symbol Function SO-14 1 SI_ENA SI Enable Input. SI_GND is switched to high impedance when SI_Enable BLE is low. High level at SI_Enable connects SI_GND to GND via a low impedance path undefined when SI_Enable is ...

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Absolute Maximum Ratings Item Parameter Supply Input 1.0.1 Voltage 1.0.2 Current Current Sense Input 1.0.3 Voltage 1.0.4 Current Gate Drive Output 1.0.5 Voltage 1.0.6 Current Buck Drive Supply Input 1.0.7 Voltage 1.0.8 Current Feedback Input 1.0.9 Voltage 1.0.10 Current ...

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Absolute Maximum Ratings (cont’d) Item Parameter 1.0.15 Voltage 1.0.16 Current Sense Input 1.0.17 Voltage 1.0.18 Current Sense Output 1.0.19 Voltage 1.0.20 Current VOUT Input 1.0.21 Voltage 1.0.22 Current Reset Delay Adjust Input 1.0.23 Voltage 1.0.24 Current Reset Output 1.0.25 ...

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Absolute Maximum Ratings (cont’d) Item Parameter Temperatures 1.0.30 Junction temperature 1.0.31 Storage temperature Note: Maximum ratings are absolute ratings; exceeding any one of these values may cause irreversible damage to the integrated circuit. Target Datasheet Rev. 1.7 Symbol Limit ...

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Operating Range Item Parameter 2.0.1 Supply voltage range 2.0.2 Junction temperature Thermal Resistance 2.0.3 Junction ambient 2.0.4 Junction pin 3 Electrical Characteristics V T 5V< <48V; - 40°C< S all voltages with respect to ground; positive current defined flowing ...

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Electrical Characteristics (cont’ 5V< <48V; - 40°C< S all voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified Item Parameter Current Consumption TLE6389-50 3.0.5 Supply current into VS 3.0.6 3.0.7 3.0.8 ...

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Electrical Characteristics (cont’ 5V< <48V; - 40°C< S all voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified Item Parameter 3.0.12 Supply current into VS 3.0.13 3.0.14 FB current Current Consumption ...

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Electrical Characteristics (cont’ 5V< <48V; - 40°C< S all voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified Item Parameter 3.0.19 Output voltage 3.0.20 3.0.21 Output voltage 3.0.22 3.0.23 FB threshold ...

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Electrical Characteristics (cont’ 5V< <48V; - 40°C< S all voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified Item Parameter 3.0.28 Gate driver, P-gate to source voltage (on) 3.0.29 Gate driver, ...

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Electrical Characteristics (cont’ 5V< <48V; - 40°C< S all voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified Item Parameter Reset Generator 3.0.41 Reset threshold 3.0.42 Reset threshold hysteresis 3.0.43 Reset ...

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Electrical Characteristics (cont’ 5V< <48V; - 40°C< S all voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified Item Parameter 3.0.52 Upper reset timing threshold 3.0.53 Lower timing threshold 3.0.54 Reset ...

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Electrical Characteristics (cont’ 5V< <48V; - 40°C< S all voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified Item Parameter 3.0.64 L-level input current I SI_GND Input 3.0.65 Switch ON resistance ...

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Electrical Characteristics (cont’ 5V< <48V; - 40°C< S all voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified Item Parameter 3.0.73 Thermal shutdown junction temperature 3.0.74 Temperature hysteresis 1) The device ...

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Detailed Description The TLE6389 family is a family of step-down DC-DC controllers designed primarily for use in high voltage applications such as automotive. Using an external MOSFET and current-sense resistor allows design flexibility and the improved efficiencies associated with ...

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IN1 100 SI1 IN2 400k 220nF
SI2 100k
TLE6389GV Application Circuit IN1 100 SI1 IN2 400k ...

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Operating Modes 4.1.1 PWM Control Scheme The TLE6389 uses a slope-compensated, current-mode PWM controller capable of achieving 100% duty cycle. The device uses an oscillator-triggered, minimum on-time, current-mode control scheme. The minimum on-time is approximately 200ns unless in dropout. ...

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PWM/PFM Operation This control scheme overrides PWM mode and places the TLE6389 in PFM mode at light loads to improve efficiency and reduce quiescent current to less than 100µA. The pulse-skipping PFM operation is initiated when the peak inductor ...

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Quiescent Current The device’s typical quiescent current is 50µA. However, actual applications draw additional current to supply MOSFET switching currents, FB pin current, or external feedback resistors (if used), and both the diode and capacitor leakage currents. For example, ...

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Do not exceed the ripple-current ratings of tantalum capacitors. Ceramic capacitors have the lowest ESR overall. Target Datasheet Rev. 1.7 21 TLE 6389 2001-09-17 ...

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Package Outlines Dimensions in mm Target Datasheet Rev. 1.7 22 TLE 6389 2001-09-17 ...

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