參數(shù)資料
型號： MC33470DW
廠商： MOTOROLA INC
元件分類： 穩(wěn)壓器
英文描述： 60-mA, 5.0-V, Buck/Boost Charge Pump in ThinSOT-23 6-SOT -40 to 85
中文描述： SWITCHING CONTROLLER, 390 kHz SWITCHING FREQ-MAX, PDSO20
封裝： PLASTIC, SO-20
文件頁數(shù)： 11/16頁
文件大?。?/td> 311K
代理商： MC33470DW
MC33470
11
MOTOROLA ANALOG IC DEVICE DATA
PIN FUNCTION DESCRIPTION
Pin
Name
Description
1
G2
This is a high current dual totem pole output Gate Drive for the Lower, or rectifier, N–channel
MOSFET. Its output swings from ground to
. During initial power application, both G2
PVCC
and G1 are held low until both VCC and PVCC
ááááááááááááááááááááááááááááááááá
á
áááááááááááááááááááááááááááááááá
ááááááááááááááááááááááááááááááááá
á
ááááááá
á
ááááááááááááááááááááááááááááááááá
á
á
ááááááá
á
á
ááááááááááááááááááááááááááááááááá
á
ááááááá
á
ááááááááááááááááááááááááááááááááá
á
ááááááááááááááááááááááááááááááááá
á
ááááááá
á
ááááááááááááááááááááááááááááááááá
á
ááááááá
á
ááááááááááááááááááááááááááááááááá
á
ááááááá
á
á
ááááááá
á
á
ááááá
ááááááááááááááááááááááááááááááááá
4
á
á
á
á
á
PVCC
á
G2 outputs. It may be connected to 12 V.
áááááááááááááááááááááá
reduce the effects of switching transient noise on the control circuitry.
á
AGnd
VCC
Sense
This pin is the ground for the control circuitry.
5
ááá
ááá
ááá
ááá
ááá
ááá
ááá
VID2
ááá
ááá
ááá
ááá
ááá
This pin is the positive supply of the control IC.
ááááááááááááááááááááááááááááááááá
ááááá
ááááá
ááááá
ááááá
ááááá
ááááá
ááááá
ááááá
ááááá
ááááá
ááááá
ááááá
16
ááááááááááááááááááááááááááááááááá
ááááá
ááááá
ááááá
ááááá
ááááá
ááááá
á
6
á
áááááááááááááááááááááááá
áááááááááááááááááááááá
resistor is determined from the following equation: R = ([RDS(on)] [ILIM]/[190
μ
A])
áááááááááááááááááááááá
á
This pin is used for feedback from the output of the power supply. It has a 20
μ
á
á
áááááááááááááááááááááá
áááááááááááááááááááááá
This is the soft–start pin. A capacitor at this pin, in conjunction with a 10
A internal current
source, sets the soft–start time. During moderate overload (current limit with VO > 50% of the
order to reduce the duty cycle of G1. During hard current limit (current limit with VO < 50% of
Imax
á
á
á
á
áááááááááááááááááááááááá
áááááááááááááááááááááá
áááááááááááááááááááááá
áááááááááááááááááááááá
á
á
current is excessive, this pin will reinitiate a soft–start cycle. If the voltage at the IFB pin drops
á
á
á
SS
á
á
á
á
áááááááááááááááááááááááá
áááááááááááááááááááááá
OUTEN pin is less than 2.0 V.
áááááááááááááááááááááá
power supply is recycled or the OUTEN pin is toggled.
Comp
á
á
á
OT
á
á
12
á
áááááááááááááááááááááá
Pwrgd indicates that VO is within
4% of its set value for more than 400
μ
s. Pwrgd will switch
Fault
á
á
á
áááááááááááááááááááááááá
áááááááááááááááááááááá
This pin has an internal 10 k pull–up resistor to VCC.
á
á
á
áááááááááááááááááááááá
This pin has an internal 10 k pull–up resistor to VCC.
áááááááááááááááááááááááá
Voltage ID pin. This CMOS–compatible input programs the output voltage as shown in Table 2.
This pin has an internal 10 k pull–up resistor to VCC.
VID4
á
á
á
á
á
17
á
áááááááááááááááááááááá
VID1
áááááááááááááááááááááá
This pin has an internal 10 k pull–up resistor to VCC.
á
á
á
áááááááááááááááááááááááá
áááááááááááááááááááááá
áááááááááááááááááááááá
controller will shut down.
áááááááááááááááááááááááá
áááááááááááááááááááááá
áááááááááááááááááááááá
á
á
á
á
OUTEN
á
á
This pin can also be used as a temperature sensor to trigger the OT pin (when OUTEN drops
á
á
20
á
G1
á
á
This is a high current dual totem pole output Gate Drive for the Upper, or switching, N–channel
相關(guān)PDF資料
PDF描述
MC33470 60-mA, 5.0-V, Buck/Boost Charge Pump in ThinSOT-23 6-SOT -40 to 85
MC33470DW SYNCHRONOUS RECTIFICATION DC/DC CONVERTER PROGRAMMABLE INTEGRATED CONTROLLER
MC33493 PLL tuned UHF Transmitter for Data Transfer Applications
MC33493DTB PLL tuned UHF Transmitter for Data Transfer Applications
MC3359 Single Output LDO, 400mA, Fixed(3.3V), Low Noise, Fast Transient Response 5-SOT-23 -40 to 85
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC33470DWG 功能描述:直流/直流開關(guān)調(diào)節(jié)器 5-Bit Synchronous Rectification Buck RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MC33470DWR2 功能描述:直流/直流開關(guān)調(diào)節(jié)器 5-Bit Synchronous RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MC33470DWR2G 功能描述:直流/直流開關(guān)調(diào)節(jié)器 5-Bit Synchronous Rectification Buck RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MC33486ADH 功能描述:電源開關(guān) IC - 配電 DUALHIGH-SIDE BRIDGE RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
MC33486ADHR2 功能描述:電源開關(guān) IC - 配電 DUALHIGH-SIDE BRIDGE RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*