LM5021-Q1

Name: LM5021-Q1
Brand: TI
SKU: LM5021-Q1
Price: 0.59 USD

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1-MHz-Strommodus-PWM-Controller, 30 V, für die Automobilindustrie

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Datenblatt

document-pdfAcrobat LM5021-Q1 AC-DC Current-Mode PWM Controller datasheet (Englisch) PDF | HTML

LM5021-Q1

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Operating temperature range (°C)

-40 to 125

Control mode

Secondary-side regulation

Topology

Flyback, Forward

Rating

Automotive

Features

Automotive qualified, CCM, DCM, Frequency synchronization, Leading edge blanking, Secondary-side regulated, Skip cycle mode

Duty cycle (max) (%)

80

Operating temperature range (°C)

-40 to 125

Control mode

Secondary-side regulation

Topology

Flyback, Forward

Rating

Automotive

Features

Automotive qualified, CCM, DCM, Frequency synchronization, Leading edge blanking, Secondary-side regulated, Skip cycle mode

Duty cycle (max) (%)

80

VSSOP (DGK)

8

14.7 mm² 3 x 4.9

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C
  Ambient Operating Temperature Range
- Device HBM Classification Level 2: ±2 kV
- Device CDM Classification Level C4B: 750 V
Ultra Low Start-up Current (25 µA maximum)
Current Mode Control
Skip Cycle Mode for Low Standby Power
Single Resistor Programmable Oscillator
Synchronizable Oscillator
Adjustable Soft-Start
Integrated 0.7 A Peak Gate Driver
Direct Opto-Coupler Interface
Maximum Duty Cycle Limiting (80% for LM5021-1 or 50%
for LM5021-2)
Slope Compensation (LM5021-1 Only)
Under Voltage Lockout (UVLO) with Hysteresis
Cycle-by-Cycle Over-Current Protection
Hiccup Mode for Continuous Overload Protection
Leading Edge Blanking of Current Sense Signal
Package: VSSOP-8

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C
  Ambient Operating Temperature Range
- Device HBM Classification Level 2: ±2 kV
- Device CDM Classification Level C4B: 750 V
Ultra Low Start-up Current (25 µA maximum)
Current Mode Control
Skip Cycle Mode for Low Standby Power
Single Resistor Programmable Oscillator
Synchronizable Oscillator
Adjustable Soft-Start
Integrated 0.7 A Peak Gate Driver
Direct Opto-Coupler Interface
Maximum Duty Cycle Limiting (80% for LM5021-1 or 50%
for LM5021-2)
Slope Compensation (LM5021-1 Only)
Under Voltage Lockout (UVLO) with Hysteresis
Cycle-by-Cycle Over-Current Protection
Hiccup Mode for Continuous Overload Protection
Leading Edge Blanking of Current Sense Signal
Package: VSSOP-8

The LM5021 off-line pulse width modulation (PWM) controller contains all of the features needed to implement highly efficient off-line single-ended flyback and forward power converters using current-mode control. The LM5021 features include an ultra-low (25 µA) start-up current, which minimizes power losses in the high voltage start-up network. A skip cycle mode reduces power consumption with light loads for energy conserving applications (ENERGY STAR®, CECP, and so forth). Additional features include under-voltage lockout, cycle-by-cycle current limit, hiccup mode overload protection, slope compensation, soft-start and oscillator synchronization capability. This high performance 8-pin IC has total propagation delays less than 100 ns and a 1-MHz capable oscillator that is programmed with a single resistor.

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Technische Dokumentation

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Alle anzeigen 2

	Typ	Titel		Datum
*	Data sheet	LM5021-Q1 AC-DC Current-Mode PWM Controller datasheet	PDF \| HTML	17 Dez 2014
	Selection guide	Power Management Guide 2018 (Rev. R)		25 Jun 2018

Design und Entwicklung

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