Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
TL1453CNSLE Datasheet(PDF) 1 Page - Texas Instruments |
|
TL1453CNSLE Datasheet(HTML) 1 Page - Texas Instruments |
1 / 8 page TL1453C DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUIT SLVS039A – FEBRUARY 1990 – REVISED DECEMBER 1990 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Complete PWM Power Control Circuitry D Completely Synchronized Operation D Internal Undervoltage Lockout Protection D Wide Supply Voltage Range D Oscillator Frequency... 500 kHz Max D Variable Dead Time Provides Control Over Total Range D Internal Regulator Provides a Stable 2.5-V Reference Supply description The TL1453C incorporates the functions required in the construction of two pulse-width-modulation control circuits on a single monolithic chip. Designed primarily for power supply control, the TL1453C 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. The uncommitted output transistors provide common-emitter output capability for each controller. The internal amplifiers exhibit a common-mode voltage range from 1.05 V to 1.45 V. The dead-time control comparator has no offset unless externally altered and may be used to provide 0% to 100% dead time. The on-chip oscillator may be operated by terminating RT (pin 2) and CT (pin 1). During low-VCC conditions, the undervoltage lockout control circuit feature inhibits the output until the internal circuitry is operational. The TL1453C is characterized for operation from –20 °C to 85°C. functional block diagram 15 13 14 12 5 4 3 16 SCP 2 IN– 2 IN+ 2 FEEDBACK 1 FEEDBACK 1 IN– 1 IN+ REF GND 8 1 DEAD-TIME CONTROL 2 DEAD-TIME CONTROL 2.5 V 2.5 V UVLO† 11 6 2 OUTPUT 1 OUTPUT 10 7 PWM Comparator 2 PWM Comparator 1 Error Amp.2 1.4 V 2 V Oscillator Triangle Error Amp.1 2.5 V Voltage Reference Vref = 2.5 V VCC 12 CT RT 2 9 1 † UVLO = Undervoltage Lockout Protection Copyright © 1990, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 CT RT ERROR IN+ AMPLIFIER 1 IN– 1 FEEDBACK 1 DEAD-TIME CONTROL 1 OUTPUT GND REF SCP IN+ ERROR IN– AMPLIFIER 2 2 FEEDBACK 2 DEAD-TIME CONTROL 2 OUTPUT VCC N OR NS PACKAGE (T0P VIEW) { } |
Número de pieza similar - TL1453CNSLE |
|
Descripción similar - TL1453CNSLE |
|
|
Enlace URL |
Política de Privacidad |
ALLDATASHEET.ES |
¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |