LM5020 13-100V 宽输入电压、电流模式 PWM 升压控制器 | 德州仪器 TI.com.cn

LM5020 (正在供货)

13-100V 宽输入电压、电流模式 PWM 升压控制器

13-100V 宽输入电压、电流模式 PWM 升压控制器 - LM5020
数据表
 

描述

The LM5020 high voltage pulse-width-modulation (PWM) controller contains all of the features needed to implement single ended primary power converter topologies. Output voltage regulation is based on current-mode control, which eases the design of loop compensation while providing inherent line feed-forward. The LM5020 includes a high-voltage start-up regulator that operates over a wide input range up to 100V. The PWM controller is designed for high speed capability including an oscillator frequency range to 1MHz and total propagation delays less than 100ns. Additional features include an error amplifier, precision reference, line under-voltage lockout, cycle-by-cycle current limit, slope compensation, softstart, oscillator synchronization capability and thermal shutdown. The controller is available in both MSOP-10 and LLP-10 packages.


特性

  • Internal Start-up Bias Regulator
  • Error Amplifier
  • Precision Voltage Reference
  • Programmable Softstart
  • 1A Peak Gate Driver
  • Maximum Duty Cycle Limiting (80% for LM5020-1 or 50% for LM5020-2)
  • Programmable Line Under Voltage Lockout (UVLO) with Adjustable Hysteresis
  • Cycle-by-Cycle Over-Current Protection
  • Slope Compensation (LM5020-1)
  • Programmable Oscillator Frequency with Synchronization Capability
  • Current Sense Leading Edge Blanking
  • Thermal Shutdown Protection

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参数 与其它产品相比 升压控制器 (外部开关)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Switch Current Limit (Typ) (A)
Regulated Outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Features
Iout (Max) (A)
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Rating
Package Group
LM5020 LM25122-Q1 LM5022 LM5121 LM5122 LM5122-Q1 LM5122ZA
13     3     6     3     3     3     3    
100     42     60     65     65     65     65    
1.25     3     1.25     3     3     3     3    
300     50     300     100     100     100     100    
10     20     10     20     20     20     20    
1     1     1     1     1     1     1    
175     50     170     50     50     50     50    
1000     600     2200     1000     1000     1000     1000    
2     4     3.5     4     4     4     4    
Enable
Frequency Synchronization
Pre-Bias Start-Up    
Enable
Frequency Synchronization
Phase Interleaving
Synchronous Rectification    
Enable
Frequency Synchronization
UVLO Adjustable    
Adjustable Current Limit
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification
UVLO Adjustable    
Enable
Frequency Synchronization
Phase Interleaving
Synchronous Rectification
UVLO Adjustable    
Enable
Frequency Synchronization
Phase Interleaving
Synchronous Rectification
UVLO Adjustable    
Enable
Frequency Synchronization
Phase Interleaving
Synchronous Rectification
UVLO Adjustable    
10     20     10     20     20     20     20    
80     100     90     100     100     100     100    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
Catalog     Automotive     Catalog     Catalog     Catalog     Automotive     Catalog    
VSSOP
WSON    
HTSSOP     VSSOP     HTSSOP     HTSSOP
HTSSOP    
HTSSOP     HTSSOP