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
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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

参数

与其它产品相比 升压控制器(外部开关) 邮件 下载到电子表格中
Part number 立即下单 Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Duty cycle (Max) (%) Operating temperature range (C) Rating Type Package Group
LM5020 立即下单 13     100     1.25     300     1     175     1000     2     Enable
Frequency Synchronization
Pre-Bias Start-Up    
80     -40 to 125     Catalog     Controller     VSSOP | 10
WSON | 10    
LM25122-Q1 立即下单 3     42     3     50     1     50     600     4     Enable
Frequency Synchronization
Phase Interleaving
Synchronous Rectification    
100     -40 to 125     Automotive     Controller     HTSSOP | 20    
LM5022 立即下单 6     60     1.25     300     1     170     2200     3.5     Enable
Frequency Synchronization
UVLO Adjustable    
90     -40 to 125     Catalog     Controller     VSSOP | 10    
LM5121 立即下单 3     65     3     100     1     50     1000     4     Adjustable Current Limit
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification
UVLO Adjustable    
100     -40 to 125     Catalog     Controller     HTSSOP | 20    
LM5122 立即下单 3     65     3     100     1     50     1000     4     Enable
Frequency Synchronization
Phase Interleaving
Synchronous Rectification
UVLO Adjustable    
100     -40 to 125     Catalog     Controller     HTSSOP | 20
HTSSOP | 24    
LM5122-Q1 立即下单 3     65     3     100     1     50     1000     4     Enable
Frequency Synchronization
Phase Interleaving
Synchronous Rectification
UVLO Adjustable    
100     -40 to 125