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Product details

Parameters

Vin (Min) (V) 3.6 Vin (Max) (V) 40 Vout (Min) (V) 1 Vout (Max) (V) 50 Switch current limit (Typ) (A) 2 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 50 Switching frequency (Max) (kHz) 400 Iq (Typ) (mA) 1.1 Duty cycle (Max) (%) 100 Operating temperature range (C) -40 to 125 Rating Automotive open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new Find other Boost converters (integrated switch)

Features

  • Qualified for Automotive Applications
  • 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
  • Available in Q-Temperature Automotive
    • High-Reliability Automotive Applications
    • Configuration Control/Print Support
    • Qualification to Automotive Standards

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Description

The TL5001A incorporates on a single monolithic chip all the functions required for a pulse-width-modulation (PWM) control circuit. Designed primarily for power-supply control, the TL5001A 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%.

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 TL5001A is characterized for operation from –40°C to 125°C.

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Technical documentation

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Type Title Date
* Datasheet Pulse-Width-Modulation Control Circuits datasheet (Rev. B) Feb. 27, 2009

Design & development

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Design tools & simulation

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PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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CALCULATION TOOL Download
Fly-Buck and Flyback Topology Selector
FLYBUCK-FLYBACK-DESIGN-CALC This tool helps a power supply engineer to select the right isolated DC-DC topology based on the specifications. Depending on the topology chosen, the calculator also recommends the right IC for the design.
Features
  • Features isolated topologies like Fly-Buck™, Fly-Buck-Boost, DCM and CCM Flyback
  • Capability to design up to 6 isolated outputs
  • Recommends ICs for desired application design
  • Incorporates loop compensation in designs
  • Compares efficiency, external component count and transformer currents for every topology (...)

Reference designs

REFERENCE DESIGNS Download
Car Door Opener for Automotive Applications
PMP2715 This reference design supplies power for a car opener by using a PWM controller, the TL5001-Q1 . The device has an input from 3V-5V with an output of up to 10V at 2.5A due to the buck/boost controller. The design can handle up to 25W of power.
document-generic Schematic

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Package Pins Download
SOIC (D) 8 View options

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