參數(shù)資料
型號(hào)： FAN6520AMX
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： Single Synchronous Buck PWM Controller
中文描述： 1 A SWITCHING CONTROLLER, 340 kHz SWITCHING FREQ-MAX, PDSO8
封裝： MS-012AA, SOIC-8
文件頁(yè)數(shù)： 2/15頁(yè)
文件大?。?/td> 580K
代理商： FAN6520AMX
2
REV. 1.0.2 8/26/04
FAN6520A
PRODUCT SPECIFICATION
Pin Configuration
FAN6520AM 8-pin SOIC Package
Pin Definitions
Pin #
1
Pin Name
BOOT
Pin Function Description
Provides a boosted voltage to the high-side MOSFET driver.
Connect to bootstrap capacitor as shown in Figure 1.
High Side Gate Drive Output.
Connect to the gate of the high-side power MOSFET(s).
This pin is also monitored by the adaptive shoot-through protection circuitry to determine
when the upper MOSFET has turned off.
Ground.
The signal and power ground for the IC. Tie this pin to the ground island/plane
through the lowest impedance connection available. Connect directly to source of low-side
MOSFET(s).
Low Side Gate Drive Output.
Connect to the gate of the low-side power MOSFET(s).
This pin is also monitored by the adaptive shoot-through protection circuitry to determine
when the lower MOSFET has turned off.
VCC.
Provides bias power to the IC and the drive voltage for LDRV. Bypass with a ceramic
capacitor as close to this pin as possible.
Feedback.
This pin is the inverting input of the internal error amplifier. Use this pin, in
combination with the COMP/OCSET pin, to compensate the voltage-control feedback loop
of the converter.
COMP/OCSET/SD.
This is a multiplexed pin. During operation, the output of the error
amplifier drives this pin. During a short period of time following power-on reset (POR), this
pin is used to determine the over-current threshold of the converter. Pulling COMP/OCSET
to a level below 0.8V disables the controller. Disabling the controller causes the oscillator
to stop, the HDRV and LDRV outputs to be held low, and the soft-start circuitry to re-arm.
Switch Node Input.
Connect as shown in Figure 1. The SW pin provides return for the
high-side bootstrapped driver, is a sense point for the adaptive shoot-thru protection, and
is used for monitoring the drop across Q1’s R
Bootstrap Supply Input.
2
HDRV
3
GND
4
LDRV
5
VCC
6
FB
7
COMP/
OCSET/SD
8
SW
DS(ON)
for current limit.
FAN6520A
1
2
3
4
8
7
6
5
SW
COMP/OCSET/SD
FB
VCC
BOOT
HDRV
GND
LDRV
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FAN6520AMX_Q 功能描述:電壓模式 PWM 控制器 Single Synchronous Buck PWM Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
FAN6520AMXCT 制造商:Fairchild Semiconductor Corporation 功能描述:
FAN6520B 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Single Synchronous Buck PWM Controller
FAN6520BIM 功能描述:電壓模式 PWM 控制器 ANG FG SynchBuck Regulator- 8ld RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
FAN6520BIMX 功能描述:電壓模式 PWM 控制器 ANG FG SynchBuck Regulator- 8ld RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
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