Product Summary

The TL1451ACN is a dual pulse-width-modulation control circuit. The TL1451ACN incorporates on a single monolithic chip all the functions required in the construction of two PWM control circuits. Designed primarily for power-supply control, the The TL1451ACN contains an on-chip 2.5-V regulator, two error amplifiers, an adjustable oscillator, two dead-time comparators, undervoltage lockout circuitry, and dual common-emitter output transistor circuits.

Parametrics

TL1451ACN absolute maximum ratings: (1)Supply voltage, VCC: 51 V; (2)Amplifier input voltage, VI: 20 V; (3)Collector output voltage, VO: 51 V; (4)Collector output current, IO: 21 mA; (5)Continuous power total dissipation: See Dissipation Rating Table; (6)Operating free-air temperature range, TA C suffix: -20℃ to 85℃; Q suffix: -40℃ to 125℃; M suffix: -55℃ to 125℃; (7)Storage temperature range, Tstg: -65℃ to 150℃; (8)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 260℃.

Features

TL1451ACN features: (1)Complete PWM Power Control Circuitry; (2)Completely Synchronized Operation; (3)Internal Undervoltage Lockout Protection; (4)Wide Supply Voltage Range; (5)Internal Short-Circuit Protection; (6)Oscillator Frequency: 500 kHz Max; (7)Variable Dead Time Provides Control Over Total Range; (8)Internal Regulator Provides a Stable 2.5-V Reference Supply; (9)Available in Q-Temp Automotive HighRel Automotive Applications Configuration Control / Print Support Qualification to Automotive Standards.

Diagrams

TL1451ACN block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TL1451ACN
TL1451ACN
Texas Instruments
DC/DC Switching Controllers Dual ch PWM Ctlr
Data Sheet
0-1: $0.89
1-25: $0.81
25-100: $0.64
100-250: $0.54
TL1451ACNE4
TL1451ACNE4
Texas Instruments
DC/DC Switching Controllers Dual Ch w/Wide Input Voltage Range
Data Sheet
0-1: $0.89
1-25: $0.74
25-100: $0.64
100-250: $0.54
TL1451ACNSR
TL1451ACNSR
Texas Instruments
DC/DC Switching Controllers Dual ch PWM Ctlr
Data Sheet
0-1: $0.91
1-25: $0.72
25-100: $0.65
100-250: $0.59
TL1451ACNSG4
TL1451ACNSG4
Texas Instruments
DC/DC Switching Controllers Dual Ch Controller
Data Sheet
0-1: $0.99
1-25: $0.83
25-100: $0.66
100-250: $0.46
TL1451ACNS
TL1451ACNS
Texas Instruments
DC/DC Switching Controllers Dual Ch Controller
Data Sheet
0-1: $0.99
1-25: $0.83
25-100: $0.66
100-250: $0.46
TL1451ACNSRG4
TL1451ACNSRG4
Texas Instruments
DC/DC Switching Controllers Dual Ch w/Wide Input Voltage Range
Data Sheet
0-1380: $0.40
1380-2000: $0.35
2000-10000: $0.34