PI3740-00 Datasheet, PDF (2/48 Pages) Vicor Corporation – Parallel capable with single wire current sharing

Contents
Order Information
Absolute Maximum Ratings
Pin Description
Package Pin-Out
Storage and Handling Information
Block Diagram
PI3740-00-LGIZ Electrical Characteristics
PI3740-00-LGIZ Performance Characteristics
MTBF
Functional Description
Enable
Switching Frequency Synchronization
Soft-Start and Tracking
Remote Sensing Differential Amplifier
Power Good
Output Current Limit Protection
Input Undervoltage Lockout
Input Overvoltage Lockout
Output Overvoltage Protection
Overtemperature Protection
Pulse Skip Mode (PSM)
Variable Frequency Operation
IMON Amplifier
PI3740-00
3
Application Description
22
3
Output Voltage Trim
22
4
Soft-Start Adjustment and Tracking
22
5
Inductor Pairing
22
6
Filter Considerations
23
6
Thermal Design
26
7
Thermal Design Inductor
28
11
PI3740-00-LGIZ Percentage of SiP Loss to Total Loss
30
19
Evaluation Board Thermal De-rating
32
20
Parallel Operation
34
20
Synchronization
34
20
Interleaving
34
20
Small Signal Models CV-CC Modes
35
20
Small Signal Model – Constant Voltage Mode
35
20
Error Amplifier
35
20
Lighting Mode (LGH)
35
20
LGH Amplifier Small Signal Model
36
20
VDR Bias Regulator
36
21
PI3740-00-LGIZ Modulator Gain / Output Resistance
37
21
System Design Considerations
44
21
Package Drawings
45
21
Receiving PCB Pattern Design Recommendations
46
21
Revision History
47
Product Warranty
48
Cool-Power^® ZVS Switching Regulators
Page 2 of 48
Rev 1.4
04/2017
vicorpower.com
800 927.9474