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TL1454A

双通道脉宽调制 (PWM) 控制电路; • Two Complete PWM Control Circuits\n• Outputs Drive MOSFETs Directly\n• Oscillator Frequency . . . 50 kHz to 2 MHz\n• 3.6-V to 20-V Supply-Voltage Range\n• Low Supply Current . . . 3.5 mA Typ\n• Adjustable Dead-Time Control, 0% to 100%\n• 1.26-V Reference;

The TL1454A is a dual-channel pulse-width-modulation (PWM) control circuit, primarily intended for low-power, dc/dc converters. Applications include LCD displays, backlight inverters, notebook computers, and other products requiring small, high-frequency, dc/dc converters.\n\n Each PWM channel has its own error amplifier, PWM comparator, dead-time control comparator, and MOSFET driver. The voltage reference, oscillator, undervoltage lockout, and short-circuit protection are common to both channels.\n\n Channel 1 is configured to drive n-channel MOSFETs in step-up or flyback converters, and channel 2 is configured to drive p-channel MOSFETs in step-down or inverting converters. The operating frequency is set with an external resistor and an external capacitor, and dead time is continuously adjustable from 0 to 100% duty cycle with a resistive divider network. Soft start can be implemented by adding a capacitor to the dead-time control (DTC) network. The error-amplifier common-mode input range includes ground, which allows the TL1454A to be used in ground-sensing battery chargers as well as voltage converters.

TITexas Instruments

德州仪器美国德州仪器公司

TL1454A

DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

TITexas Instruments

德州仪器美国德州仪器公司

TL1454A

DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

TI1Texas Instruments

德州仪器美国德州仪器公司

TL1454A_14

DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

TI1Texas Instruments

德州仪器美国德州仪器公司

TL1454ACD

DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

TITexas Instruments

德州仪器美国德州仪器公司

TL1454ACD

DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

TI1Texas Instruments

德州仪器美国德州仪器公司

TL1454ACDB

DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

TITexas Instruments

德州仪器美国德州仪器公司

TL1454ACDB

DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

TI1Texas Instruments

德州仪器美国德州仪器公司

TL1454ACDBR

DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

TITexas Instruments

德州仪器美国德州仪器公司

TL1454ACDBR

DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

TI1Texas Instruments

德州仪器美国德州仪器公司

技术参数

  • Vin (min) (V):

    3.6

  • Vin (max) (V):

    20

  • Vout (min) (V):

    1.26

  • Vout (max) (V):

    20

  • Type:

    Controller

  • Regulated outputs (#):

    2

  • Switching frequency (min) (kHz):

    50

  • Switching frequency (max) (kHz):

    2000

  • Iq (typ) (mA):

    3.5

  • Duty cycle (max) (%):

    100

  • Operating temperature range (°C):

    -20 to 85

  • Rating:

    Catalog

供应商型号品牌批号封装库存备注价格
TI
2025+
TSOP16
3750
全新原厂原装产品、公司现货销售
询价
TI
24+
TSSOP-16
53
询价
TI
23+
SSOP
2870
绝对全新原装!现货!特价!请放心订购!
询价
TI
05+
原厂原装
80051
只做全新原装真实现货供应
询价
TI
11+
TSSOP16
8000
全新原装,绝对正品现货供应
询价
Ti
24+
16-pinPDIP
4897
绝对原装!现货热卖!
询价
TI
24+
PDIP
6000
进口原装正品假一赔十,货期7-10天
询价
TI
25+
TSSOP16
10000
主打产品,长备大量现货
询价
TI
2020+
SOP16
746
百分百原装正品 真实公司现货库存 本公司只做原装 可
询价
TI
24+
SSOP
6868
原装现货,可开13%税票
询价
更多TL1454A供应商 更新时间2025-7-29 15:56:00