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UCC28700QDBVRQ1

更新时间： 2024-11-24 01:14:15
品牌 Logo 应用领域
德州仪器 - TI 开关光电二极管
页数 文件大小 规格书
38页 1732K
描述
Constant-Voltage, Constant-Current Controller With Primary-Side Regulation

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UCC28700QDBVRQ1 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：SOT-23, 6 PIN
Reach Compliance Code：compliantECCN代码：EAR99
Factory Lead Time：6 weeks风险等级：1.72
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：CURRENT/VOLTAGE-MODE
控制技术：RESONANT CONTROL最大输入电压：35 V
最小输入电压：9 V标称输入电压：25 V
JESD-30 代码：R-PDSO-G6JESD-609代码：e4
长度：2.9 mm湿度敏感等级：1
功能数量：1端子数量：6
最高工作温度：125 °C最低工作温度：-40 °C
标称输出电压：5 V封装主体材料：PLASTIC/EPOXY
封装代码：LSSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, LOW PROFILE, SHRINK PITCH筛选级别：AEC-Q100
座面最大高度：1.45 mm表面贴装：YES
切换器配置：SINGLE最大切换频率：140 kHz
温度等级：AUTOMOTIVE端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：GULL WING端子节距：0.95 mm
端子位置：DUAL宽度：1.6 mm
Base Number Matches：1

UCC28700QDBVRQ1 数据手册

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Sample &  
Buy  
Support &  
Community  
Reference  
Design  
Product  
Folder  
Tools &  
Software  
Technical  
Documents  
UCC28700-Q1  
SLUSC61 –JANUARY 2015  
UCC28700-Q1 Constant-Voltage, Constant-Current Controller  
With Primary-Side Regulation  
1 Features  
3 Description  
The UCC28700-Q1 of flyback power supply  
1
•
•
Qualified for Automotive Applications  
controllers provides Constant-Voltage (CV) and  
Constant-Current (CC) output regulation without the  
use of an optical coupler. The devices process  
information from the primary power switch and an  
auxiliary flyback winding for precise control of output  
voltage and current. Low start-up current, dynamically  
controlled operating states and a tailored modulation  
profile support very low standby power without  
sacrificing start-up time or output transient response.  
AEC-Q100 Qualified with the Following Results:  
–
–
–
Device Temperature Grade 1: –40°C to 125°C  
Device HBM Classification Level 2: ±2 kV  
Device CDM Classification Level C4B: 750 V  
•
•
< 30-mW Standby Power Consumption  
Primary-Side Regulation (PSR) Eliminates Opto-  
Coupler  
•
•
•
±5% Voltage and Current Regulation  
130-kHz Maximum Switching Frequency  
Control algorithms in the UCC28700-Q1 allows  
operating efficiencies to meet or exceed applicable  
standards. The output drive interfaces to a MOSFET  
power switch. Discontinuous Conduction Mode  
(DCM) with valley switching reduces switching losses.  
Modulation of switching frequency and primary  
current peak amplitude (FM and AM) keeps the  
conversion efficiency high across the entire load and  
line ranges.  
Quasi-Resonant Valley-Switching Operation for  
Highest Overall Efficiency  
•
Patent-Pending Frequency-Jitter Scheme to Ease  
EMI Compliance  
•
•
•
Wide VDD Range Allows Small Bias Capacitor  
Clamped Gate-Drive Output for MOSFET  
The controllers have a maximum switching frequency  
of 130 kHz and always maintain control of the peak-  
primary current in the transformer. Protection features  
help keep primary and secondary component  
stresses in check. The UCC28700-Q1 allows the  
level of cable compensation to be programmed.  
Protection Functions: Overvoltage, Low-Line, and  
Overcurrent  
•
•
Programmable Cable Compensation  
SOT23-6 Package  
2 Applications  
Device Information(1)  
•
•
•
Automotive AC-to-DC and DC-to-DC Power  
Conversion  
PART NUMBER  
PACKAGE  
BODY SIZE (NOM)  
UCC28700-Q1  
SOT-23 (6)  
2.90 mm × 1.60 mm  
Auxiliary Power Supply for Automotive Power  
Train in HEV  
(1) For all available packages, see the orderable addendum at  
the end of the datasheet.  
Flyback and Buck Power Converters  
Typical Application Schematic  
VREG  
D1  
VBLK  
RPL  
CB1  
CB2  
VOUT  
Ns  
Np  
COUT  
±
VAC  
RSTR  
UCC28700-Q1  
SOT23-6  
D2  
VAUX  
VDD  
CDD  
Na  
RS1  
DRV  
VS  
CS  
RS2  
RLC  
CBC  
RCS  
RCBC  
GND  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
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