Datasheet > UCC2750DWTR

UCC2750DWTR

更新时间： 2024-01-08 02:15:05

品牌	Logo	应用领域
德州仪器 - TI		电信信息通信管理光电二极管电信集成电路
页数	文件大小	规格书
16页	996K
描述
SPECIALTY TELECOM CIRCUIT, PDSO28, GREEN, PLASTIC, SOIC-28

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技术参数
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UCC2750DWTR 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：	SOIC
包装说明：	SOP,	针数：	28
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.11	JESD-30 代码：	R-PDSO-G28
长度：	17.9 mm	功能数量：	1
端子数量：	28	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified	座面最大高度：	2.65 mm
标称供电电压：	5 V	表面贴装：	YES
技术：	BICMOS	电信集成电路类型：	TELECOM CIRCUIT
温度等级：	INDUSTRIAL	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	7.5 mm
Base Number Matches：	1

UCC2750DWTR 数据手册

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

–48V

OUT

48V

OUT

GD2 GD3 ENBL REF

VCP

GD1

UCC3750

VS 2

24 RT

23 CT

VS 1

RGOOD

VDD

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

SWRLY

GND

C17

0.047µF

UDG-99073

SLUS172C - DECEMBER 1999 - REVISED AUGUST 2005

12 3 4 5 6 7...16

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与UCC2750DWTR相关器件

型号	品牌	描述	获取价格	数据表
UCC2750DWTRG4	TI	SPECIALTY TELECOM CIRCUIT, PDSO28, GREEN, PLASTIC, SOIC-28	获取价格
UCC2750N	TI	Low Power Pulse Width Modulator	获取价格
UCC2750Q	TI	暂无描述	获取价格
UCC2751	TI	Single Line Ring Generator Controller	获取价格
UCC2751_10	TI	Not Recommended for New Design	获取价格
UCC27511	TI	Single Channel High-Speed, Low-Side Gate Driver	获取价格

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