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TL5001A

ACTIVE

PWM Controller with wide input range, with ±3% tolerance on reference, operation –20°C to 85°C

Product details

Topology Boost, Buck, Flyback, Forward Vin (min) (V) 3.6 Vin (max) (V) 40 Vout (min) (V) 1 Vout (max) (V) 50 Regulated outputs (#) 1 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 400 Iq (typ) (mA) 1.1 Features Nonsynchronous rectification, UVLO Fixed Duty cycle (max) (%) 100 Rating Automotive, Catalog Operating temperature range (°C) -40 to 125 Type Controller
Topology Boost, Buck, Flyback, Forward Vin (min) (V) 3.6 Vin (max) (V) 40 Vout (min) (V) 1 Vout (max) (V) 50 Regulated outputs (#) 1 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 400 Iq (typ) (mA) 1.1 Features Nonsynchronous rectification, UVLO Fixed Duty cycle (max) (%) 100 Rating Automotive, Catalog Operating temperature range (°C) -40 to 125 Type Controller
PDIP (P) 8 92.5083 mm² 9.81 x 9.43 SOIC (D) 8 29.4 mm² 4.9 x 6
  • 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

  • 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

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.

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.

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Technical documentation

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Type Title Date
* Data sheet Pulse-Width-Modulation Control Circuits datasheet (Rev. F) 31 Jan 2002
Application note 스트컨버터의 전력계 기본 계산 (Rev. D) PDF | HTML 21 Nov 2022
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. D) PDF | HTML 28 Oct 2022
User guide Designing Low-Cost Buck Regulators Using The TL5001A 23 Jun 1999
Application note TMS320C62x/67x Power Supply Solutions for 1-2 DSPs Using the TL5001A and TPS7133 (Rev. A) 01 Jun 1999

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Supported products & hardware

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