Datasheet LT4422 (Analog Devices) - 5
| Hersteller | Analog Devices |
| Beschreibung | 28V, 4A Ideal Diode |
| Seiten / Seite | 18 / 5 — Data Sheet. LT4422. PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS. Figure … |
| Dateiformat / Größe | PDF / 709 Kb |
| Dokumentensprache | Englisch |
Data Sheet. LT4422. PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS. Figure 3. Pin Configurations. Table 3. Pin Descriptions. PIN
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Data Sheet LT4422 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS Figure 3. Pin Configurations Table 3. Pin Descriptions PIN NAME DESCRIPTION
Positive Input Supply and Ideal Diode Anode. Connect the IN pin to the power source that supplies power to the load. The exposed pad is also connected to IN. Use a copper plane connected to the exposed pad for thermal management (see Applications 1, 2, 3, 11 IN Information – Layout and Thermal Considerations for sizing details). Bypass IN with a 0.1µF or larger capacitor to suppress undesired reverse turn-off in applications with load transient ringing. Shutdown Control Input. Driving SHDN low disables the ideal diode between IN and OUT, placing the part in a low quiescent current mode. SHDN may be connected to IN 4 SHDN for automatic turn-on applications. Do not leave SHDN open. Note that the power path body diode provides a conducting path between IN and OUT when in shutdown. 5, 6 GND Device Ground. Open-Drain Status Output. When IN or OUT is greater than 1.9V, STATUS pulls low when 7 STATUS SHDN is pulled low or when OUT exceeds IN by approximately 20mV. Connect STATUS to OUT or an external supply through a pull-up resistor. Leave STATUS open or connect to GND if not used. Ideal Diode Cathode Output. In diode-OR applications using multiple LT4422s, connect 8, 9, 10 OUT the common output node to OUT. Bypass OUT with a 0.1µF or larger capacitor to suppress undesired reverse turn-off in applications with load transient ringing.
analog.com
Rev. 0 5 of 18 Document Outline Features Applications General Description Simplified Application Diagram TABLE OF CONTENTS Revision History Specifications Absolute Maximum Ratings Pin Configurations and Function Descriptions Typical Performance Characteristics Block Diagram Theory of Operation Applications Information USB PD 3.0 and Back-Up Battery Supply Automatic Power Path Control 5V Power Ride-Through High-Voltage Diode-OR Layout and Thermal Considerations Typical Application High-Load Current Application Reverse Input Voltage Protection Related Parts Outline Dimensions Ordering Guide
Data Sheet LT4422 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS Figure 3. Pin Configurations Table 3. Pin Descriptions PIN NAME DESCRIPTION
Positive Input Supply and Ideal Diode Anode. Connect the IN pin to the power source that supplies power to the load. The exposed pad is also connected to IN. Use a copper plane connected to the exposed pad for thermal management (see Applications 1, 2, 3, 11 IN Information – Layout and Thermal Considerations for sizing details). Bypass IN with a 0.1µF or larger capacitor to suppress undesired reverse turn-off in applications with load transient ringing. Shutdown Control Input. Driving SHDN low disables the ideal diode between IN and OUT, placing the part in a low quiescent current mode. SHDN may be connected to IN 4 SHDN for automatic turn-on applications. Do not leave SHDN open. Note that the power path body diode provides a conducting path between IN and OUT when in shutdown. 5, 6 GND Device Ground. Open-Drain Status Output. When IN or OUT is greater than 1.9V, STATUS pulls low when 7 STATUS SHDN is pulled low or when OUT exceeds IN by approximately 20mV. Connect STATUS to OUT or an external supply through a pull-up resistor. Leave STATUS open or connect to GND if not used. Ideal Diode Cathode Output. In diode-OR applications using multiple LT4422s, connect 8, 9, 10 OUT the common output node to OUT. Bypass OUT with a 0.1µF or larger capacitor to suppress undesired reverse turn-off in applications with load transient ringing.
analog.com
Rev. 0 5 of 18 Document Outline Features Applications General Description Simplified Application Diagram TABLE OF CONTENTS Revision History Specifications Absolute Maximum Ratings Pin Configurations and Function Descriptions Typical Performance Characteristics Block Diagram Theory of Operation Applications Information USB PD 3.0 and Back-Up Battery Supply Automatic Power Path Control 5V Power Ride-Through High-Voltage Diode-OR Layout and Thermal Considerations Typical Application High-Load Current Application Reverse Input Voltage Protection Related Parts Outline Dimensions Ordering Guide