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LM5022-Q1 Datasheet Preview

LM5022-Q1 Datasheet

60-V Low-Side Controller

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LM5022-Q1
SNVSAG9 – MARCH 2016
LM5022-Q1 2.2MHz, 60 V Low-Side Controller For Boost and SEPIC
1 Features
1 AEC-Q100 Grade 1 Qualified with the following
results:
– Device Temperature Grade 1: -40°C to 125°C
Ambient Operating Temperature Range
– Device HBM ESD Classification Level 2
– Device CDM ESD Classification Level C5
• Internal 60-V Start-Up Regulator
• 1-A Peak MOSFET Gate Driver
• VIN Range: 6 V to 60 V (operate down to 3 V after
startup)
• Duty Cycle Limit of 90%
• Programmable UVLO with Hysteresis
• Cycle-by-Cycle Current Limit
• Single Resistor Oscillator Frequency Set
• Adjustable Switching Frequency to 2.2MHz
• External Clock Synchronization
• Slope Compensation
• Adjustable Soft Start
• 10-Pin VSSOP Package
2 Applications
• Boost Converter
• SEPIC Converter
3 Description
The LM5022-Q1 is a high voltage low-side N-channel
MOSFET controller ideal for use in boost and SEPIC
regulators. It contains all of the features needed to
implement single-ended primary topologies. Output
voltage regulation is based on current-mode control,
which eases the design of loop compensation while
providing inherent input voltage feed-forward. The
LM5022-Q1 includes a start-up regulator that
operates over a wide input range of 6 V to 60 V. The
PWM controller is designed for high-speed capability
including an oscillator frequency range up to 2.2 MHz
and total propagation delays less than 100 ns.
Additional features include an error amplifier,
precision reference, line undervoltage lockout, cycle-
by-cycle current limit, slope compensation, soft-start,
external synchronization capability, and thermal
shutdown. The LM5022-Q1 is available in the 10-pin
VSSOP package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LM5022-Q1
VSSOP (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application
VIN L1
D1 VO
CIN
RUV2
RUV1
VIN
RT
RT
UVLO
CSS
SS
COMP
R1
OUT
CS
GND
VCC
FB
C2
RS1
CCS
CF
C1
Q1
RSNS
CO
RFB2
RFB1
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




etcTI

LM5022-Q1 Datasheet Preview

LM5022-Q1 Datasheet

60-V Low-Side Controller

No Preview Available !

LM5022-Q1
SNVSAG9 – MARCH 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings: LM5022-Q1 ........................................ 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics .......................................... 5
6.6 Typical Characteristics .............................................. 7
7 Detailed Description .............................................. 9
7.1 Overview ................................................................... 9
7.2 Functional Block Diagram ......................................... 9
7.3 Feature Description................................................. 10
7.4 Device Functional Modes........................................ 12
8 Application and Implementation ........................ 14
8.1 Application Information............................................ 14
8.2 Typical Application ................................................. 14
9 Power Supply Recommendations...................... 28
10 Layout................................................................... 28
10.1 Layout Guidelines ................................................. 28
10.2 Layout Example .................................................... 30
11 Device and Documentation Support ................. 31
11.1 Device Support...................................................... 31
11.2 Community Resources.......................................... 31
11.3 Trademarks ........................................................... 31
11.4 Electrostatic Discharge Caution ............................ 31
11.5 Glossary ................................................................ 31
12 Mechanical, Packaging, and Orderable
Information ........................................................... 31
4 Revision History
DATE
March 2016
REVISION
*
NOTES
Initial release.
2 Submit Documentation Feedback
Product Folder Links: LM5022-Q1
Copyright © 2016, Texas Instruments Incorporated


Part Number LM5022-Q1
Description 60-V Low-Side Controller
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