
TL5001M Series
PWM Controller with wide input range, with ±5% tolerance on reference, operation –55°C to 125°C
Manufacturer: Texas Instruments
Catalog
PWM Controller with wide input range, with ±5% tolerance on reference, operation –55°C to 125°C
Key Features
• Complete PWM Power Control3.6-V to 40-V OperationInternal Undervoltage-Lockout CircuitInternal Short-Circuit ProtectionOscillator Frequency . . . 20 kHz to 500 kHzVariable Dead Time Provides Control Over Total Range±3% Tolerance on Reference Voltage (TL5001A)Available in Q-Temp AutomotiveHighRel Automotive ApplicationsConfiguration Control / Print SupportQualification to Automotive StandardsComplete PWM Power Control3.6-V to 40-V OperationInternal Undervoltage-Lockout CircuitInternal Short-Circuit ProtectionOscillator Frequency . . . 20 kHz to 500 kHzVariable Dead Time Provides Control Over Total Range±3% Tolerance on Reference Voltage (TL5001A)Available in Q-Temp AutomotiveHighRel Automotive ApplicationsConfiguration Control / Print SupportQualification to Automotive Standards
Description
AI
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 VCCconditions, the UVLO circuit turns the output off until VCCrecovers 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 VCCconditions, the UVLO circuit turns the output off until VCCrecovers 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.