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KA3524 Datasheet

  • KA3524

  • SMPS Controller

  • 12頁

  • FAIRCHILD

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www.fairchildsemi.com
KA3524
SMPS Controller
Features
Complete PWM power control circuit
Operation beyond 100KHz
2% frequency stability with temperature
Total quiescent current less than 10mA
Single ended or push-pull outputs
Current limit amplifier provides external component
protection
鈥?On-chip protection against excessive junction temperature
and output current
鈥?5V, 50mA linear regulator output available to user
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Description
The KA3524 regulating pulse width modulator contains
all of the control circuit necessary to implement switching
regulators of either polarity, transformer coupled DC to
DC converters, transformerless polarity converters and volt-
age doublers, as well as other power control applications.
This device includes a 5V voltage regulator capable of sup-
plying up to 50mA to external circuit , a control ampli-
fier, an oscillator, a pulse width modulator, a phase
splitting flip-flop, dual alternating output switch transistors,
and current limiting and shut-down circuit. Both the regu-
lator output transistor and each output switch are internally
current limiting and, to limit junction temperature, aninter-
nal thermal shutdown circuit is employed.
16-DIP
1
Internal Block Diagram
Rev. 5.0
漏2000 Fairchild Semiconductor International

KA3524 產(chǎn)品屬性

  • 1,500

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 切換控制器

  • -

  • 電壓模式

  • 2

  • 350kHz

  • 45%

  • 8 V ~ 40 V

  • 0°C ~ 70°C

  • 16-DIP(0.300",7.62mm)

  • 管件

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