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5962-88685052A

更新时间： 2024-01-22 14:48:05
品牌 Logo 应用领域
德州仪器 - TI 电源电路电源管理电路
页数 文件大小 规格书
18页 389K
描述
SUPPLY-VOLTAGE SUPERVISORS

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5962-88685052A 技术参数

是否无铅：含铅是否Rohs认证：不符合
生命周期：Obsolete零件包装代码：QLCC
包装说明：QCCN, LCC20,.35SQ针数：20
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.7
Is Samacsys：N其他特性：POWER-ON RESET GENERATOR
可调阈值：YES模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：S-CQCC-N20长度：8.89 mm
信道数量：1功能数量：1
端子数量：20最高工作温度：125 °C
最低工作温度：-55 °C封装主体材料：CERAMIC, METAL-SEALED COFIRED
封装代码：QCCN封装等效代码：LCC20,.35SQ
封装形状：SQUARE封装形式：CHIP CARRIER
峰值回流温度（摄氏度）：NOT SPECIFIED电源：3.6/18 V
认证状态：Not Qualified筛选级别：MIL-STD-883
座面最大高度：2.03 mm子类别：Power Management Circuits
最大供电电流 (Isup)：4 mA最大供电电压 (Vsup)：18 V
最小供电电压 (Vsup)：3.6 V标称供电电压 (Vsup)：5 V
表面贴装：YES技术：BIPOLAR
温度等级：MILITARY端子形式：NO LEAD
端子节距：1.27 mm端子位置：QUAD
阈值电压标称：+4.55V处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：8.89 mmBase Number Matches：1

5962-88685052A 数据手册

 浏览型号5962-88685052A的Datasheet PDF文件第6页浏览型号5962-88685052A的Datasheet PDF文件第7页浏览型号5962-88685052A的Datasheet PDF文件第8页浏览型号5962-88685052A的Datasheet PDF文件第10页浏览型号5962-88685052A的Datasheet PDF文件第11页浏览型号5962-88685052A的Datasheet PDF文件第12页 
TL7702B, TL7705B, TL7733B  
SUPPLY-VOLTAGE SUPERVISORS  
The TL7705BM is obsolete  
and no longer is supplied.  
SLVS037M – SEPTEMBER 1989 – REVISED MAY 2003  
APPLICATION INFORMATION  
V
S
System Supply  
8
10 kΩ  
V
CC  
RESET  
7
2
5
6
To System  
RESET  
SENSE  
Reset Input  
(from system)  
RESIN  
REF  
CT  
1
3
R
T
To System  
RESET  
RESET  
GND  
(see text)  
10 kΩ  
C
0.1 µF  
4
T
Figure 8. System Reset Controller With Undervoltage Sensing  
When the TL770xB SENSE terminal is used to monitor V , a current-limiting resistor in series with C is  
CC  
T
recommended. During normal operation, the timing capacitor is charged by the onboard current source to  
approximately V or an internal voltage clamp (≈7.1-V Zener), whichever is less. When the circuit then is subjected  
CC  
to an undervoltage condition during which V  
is rapidly slewed down, the voltage on CT exceeds that on V . This  
CC  
CC  
forward biases a secondary path internally, which falsely activates the outputs. A fault is indicated when V  
drops  
CC  
below V  
, not when V  
falls below V  
.
(CT)  
SENSE  
T–  
Texas Instruments performs a 100% electrical screen to verify that the outputs do not switch with 1 mA forced into  
the CT terminal. Adding the external resistor, R , prevents false triggering. Its value is calculated as follows:  
T
V(  
VT  
–
)
CT  
RT  
Where:  
V
V
R
= V  
or 7.1 V, whichever is less  
(CT)  
T–  
T
CC  
= 4.55 V (nom)  
= value of series resistor required  
For V  
= 5 V:  
CC  
5
4.55  
RT  
1 mA  
Therefore,  
RT  
450  
Using a 20%-tolerance resistor, R should be greater than 560 Ω.  
T
Adding this series resistor changes the duration of the reset pulse by no more than 10%. R extends the discharge  
T
of C , but also skews the V  
threshold. These effects tend to cancel one another. The precise percentage change  
T
(CT)  
can be derived theoretically, but the equation is complicated by this interaction and is dependent upon the duration  
of the supply-voltage fault condition.  
Both outputs of the TL770xB should be terminated with similar value resistors, even when only one is being used.  
This prevents unwanted plateauing in either output waveform during switching, which may be interpreted as an  
undefined state or delay system reset.  
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1...6789101112...18

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