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UCC3750NG4 PDF预览

UCC3750NG4

更新时间： 2024-11-18 12:01:43
品牌 Logo 应用领域
德州仪器 - TI 电信集成电路电信电路光电二极管信息通信管理控制器
页数 文件大小 规格书
18页 1402K
描述
Source Ringer Controller

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中文翻译

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UCC3750NG4 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Obsolete零件包装代码：DIP
包装说明：GREEN, PLASTIC, DIP-28针数：28
Reach Compliance Code：compliantHTS代码：8542.39.00.01
风险等级：5.64Is Samacsys：N
JESD-30 代码：R-PDIP-T28JESD-609代码：e4
长度：36.32 mm功能数量：1
端子数量：28最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：DIP封装形状：RECTANGULAR
封装形式：IN-LINE峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：5.08 mm
标称供电电压：5 V表面贴装：NO
技术：BICMOS电信集成电路类型：TELECOM CIRCUIT
温度等级：COMMERCIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：15.24 mmBase Number Matches：1

UCC3750NG4 数据手册

 浏览型号UCC3750NG4的Datasheet PDF文件第2页浏览型号UCC3750NG4的Datasheet PDF文件第3页浏览型号UCC3750NG4的Datasheet PDF文件第4页浏览型号UCC3750NG4的Datasheet PDF文件第5页浏览型号UCC3750NG4的Datasheet PDF文件第6页浏览型号UCC3750NG4的Datasheet PDF文件第7页 
application  
INFO  
UCC2750  
UCC3750  
available  
Source Ringer Controller  
FEATURES  
DESCRIPTION  
• Provides Control for Flyback Based  
Four Quadrant Amplifier Topology  
The UCC3750 Source Ringer Controller provides a complete control and  
drive solution for a four quadrant flyback-based ring generator circuit. The  
IC controls a primary side switch, which is modulated when power transfer  
is taking place from input to output. It also controls two secondary  
switches which act as synchronous rectifier switches during positive  
power flow. These switches are pulse-width-modulated when the power is  
being delivered back to the source.  
• Onboard Sine Wave Reference with  
Low THD  
• Selectable Ringing Frequency for  
Different Phone Systems (20Hz,  
25Hz and 50Hz)  
The UCC3750 has an onboard sine wave reference with programmable  
frequencies of 20Hz, 25Hz and 50Hz. The reference is derived from a  
high-frequency (32kHz) crystal connected externally. Two fre-  
quency-select pins control an internal divider to give a sinusoidal output at  
20Hz, 25Hz or 50Hz. The ring generator can also be used at other fre-  
quencies by supplying externally generated sine-waves to the chip or by  
clocking the crystal input at a fixed multiple of the desired frequency.  
• Programmable Output Amplitude and  
DC Offset  
• DC Current Limiting for Short Circuit  
Protection  
• Secondary Side Voltage Mode  
Control  
Other features included in the UCC3750 are programmable DC current  
limit (with buffer amplifier), a charge-pump circuit for gate drive voltage, in-  
ternal 3V and 7.5V references, a triangular clock oscillator and a buffer  
amplifier for adding programmable DC offset to the output voltage. The  
UCC3750 also provides an uncommitted amplifier (AMP) for other signal  
processing requirements.  
• Operates from a Single 5V Supply  
TYPICAL APPLICATION  
0V  
V
–48V  
OUT  
V
IN  
48V  
V
OUT  
28  
26  
27  
25  
GD2 GD3 ENBL REF  
VCP  
4
6
2
GD1  
UCC3750  
VS 2  
24 RT  
23 CT  
VS 1  
5
7
1
RGOOD  
VDD  
5V  
11 OUTDC  
OUT2 15  
12 NEGDC  
13 AMP OUT  
14 AMP IN  
22 XTAL1  
21 XTAL2  
20 FS0  
NEG2 18  
OUT1 16  
NEG1 17  
SINFLT 10  
19 FS1  
SINREF  
9
SWRLY  
8
GND  
3
C17  
0.047µF  
UDG-99073  
SLUS172C - DECEMBER 1999 - REVISED AUGUST 2005  
1234567...18

中文翻译

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