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參數(shù)資料
| 型號： | UCD7230_07 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Digital Control Compatible Synchronous Buck Gate Drivers with Current Sense Conditioning Amplifier |
| 中文描述： | 數(shù)字控制兼容同步降壓門驅動器，電流調節(jié)放大器檢測 |
| 文件頁數(shù)： | 2/33頁 |
| 文件大?。?/td> | 874K |
| 代理商： | UCD7230_07 |
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SIMPLIFIED APPLICATION DIAGRAMS
DLY
SRE
AGND
3V3
UCD7230
IN
VDD
DPWMB0
UCD9112
A0
I0
CLF
ILIM
DPWMA0
RB1/TMRI1
OUT1
CSBIAS
SW
6
5
4
2
COMMUNICATION
(Programming&
StatusReporting)
1
VIN
10
7
9
8
OUT2
2
1
3
2
2
ADC2
RB0
AD33
EAP
EAM
VOUT
VOUT
VD25
RST
ADC3
AVSS
2
1
RNEG
RPOS
GSENSE
GSENSE
20
18
CS+
15
PVDD
19
17
BST16
12
NEG
14
PGND13
11
POS
UCD7230
SLUS741C–NOVEMBER 2006–REVISED MARCH 2007
The UCD7230 is a MOSFET gate driver specifically designed for synchronous buck applications. It is ideally
suited to provide the bridge between digital controllers such as the UCD91xx or the UCD95xx and the power
stage. With cycle-by-cycle current limit protection, the UCD7230 device protects the power stage from faulty
input signals or excessive load currents.
The UCD7230 includes high-side and low-side gate drivers which utilize Texas Instrument’s TrueDrive output
architecture. This architecture delivers rated current into the gate capacitance of a MOSFET during the Miller
plateau region of the switching. Furthermore, the UCD7230 offers a low offset differential amplifier with a fixed
gain of 48. This amplifier greatly simplifies the task of conditioning small current sense signals inherent in high
efficiency buck converters.
The UCD7230 includes a 3.3-V, 10-mA linear regulator to provide power to digital controllers such as the
UCD91xx. The UCD7230 is compatible with standard 3.3-V I/O ports of the UCD91xx, the TMS320TM family
DSPs,
μ
Cs, or ASICs.
The UCD7230 is offered in PowerPAD HTSSOP or space-saving QFN packages. Package pin out has been
carefully designed for optimal board layout
Figure 1. Single-Phase Synchronous Buck Converter using UCD9112 and one UCD7230
2
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| UCD7230A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Digital Control Compatible Synchronous Buck Gate Driver with Current Sense Conditioning Amplifier |
| UCD7230ARGWR | 功能描述:功率驅動器IC Dig Pwr Comp Synch Buck Driver RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| UCD7230ARGWT | 功能描述:功率驅動器IC Dig Pwr Comp Synch Buck Driver RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| UCD7230PWP | 功能描述:DC/DC 開關控制器 Dig Pwr Comp Synch Buck RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| UCD7230PWPG4 | 功能描述:DC/DC 開關控制器 Dig Pwr Comp Synch Buck Drvr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
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