PWM Controller with Wide Input Range - TL5001

TL5001 (ACTIVE)

PWM Controller with Wide Input Range

Recommended alternative parts

  • TPS40200  -  TPS40200 has more features as a step down DC/DC controller with the same 8 pin package
  • TL494  -  TL494 has the flexibility to tailor the power-supply control circuitry to a specific application

Description

The TL5001 and TL5001A incorporate on a single monolithic chip all the functions required for a pulse-width-modulation (PWM) control circuit. Designed primarily for power-supply control, the TL5001/A contains an error amplifier, a regulator, an oscillator, a PWM comparator with a dead-time-control input, undervoltage lockout (UVLO), short-circuit protection (SCP), and an open-collector output transistor. The TL5001A has a typical reference voltage tolerance of ±3% compared to ±5% for the TL5001.

The error-amplifier common-mode voltage ranges from 0 V to 1.5 V. The noninverting input of the error amplifier is connected to a 1-V reference. Dead-time control (DTC) can be set to provide 0% to 100% dead time by connecting an external resistor between DTC and GND. The oscillator frequency is set by terminating RT with an external resistor to GND. During low VCC conditions, the UVLO circuit turns the output off until VCC recovers to its normal operating range.

The TL5001C and TL5001AC are characterized for operation from –20°C to 85°C. The TL5001I and TL5001AI are characterized for operation from –40°C to 85°C. The TL5001Q and TL5001AQ are characterized for operation from –40°C to 125°C. The TL5001M and TL5001AM are characterized for operation from –55°C to 125°C.

Features

  • Complete PWM Power Control
  • 3.6-V to 40-V Operation
  • Internal Undervoltage-Lockout Circuit
  • Internal Short-Circuit Protection
  • Oscillator Frequency . . . 20 kHz to 500 kHz
  • Variable Dead Time Provides Control Over Total Range
  • ±3% Tolerance on Reference Voltage (TL5001A)
  • Available in Q-Temp Automotive
           HighRel Automotive Applications
           Configuration Control / Print Support
           Qualification to Automotive Standards

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Parametrics Compare all products in Buck/Boost, Inverting Controller

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Iq (Typ) (mA)
Switching Frequency (Max) (kHz)
Rating
Undervoltage Lockout
Regulated Outputs (#)
Market Segment
Control Mode
Topology
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
TL5001
3.6    
40    
1    
50    
3    
1.1    
400    
Catalog    
Fixed    
1    
Industrial    
Voltage Mode    
Boost
Buck
Flyback    
-25 to 85
-40 to 125
-40 to 85    
8PDIP
8SOIC
8SO    
0.45 | 1ku    

Other qualified versions of TL5001

Version Part Number Definition
Military TL5001M QML certified for Military and Defense Applications

Featured tools and software

Companion parts

Part # Name Product Family Comments
TPS2816   Inverting High Speed MOSFET Driver with Active Pullup and Internal Regulator   AC/DC AND ISOLATED DC/DC POWER SUPPLY - Gate Driver    Step-up converter with TL5001.
See Literature slvae05  
TPS1101   Single P-channel Enhancement-Mode MOSFET   POWER MOSFET - P-CHANNEL MOSFET TRANSISTOR    Step-down converter with TL5001.
See Literature slvs084f  
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