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LTC2918CMS-B1#PBF

更新时间： 2024-01-06 23:30:58
品牌 Logo 应用领域
凌特 - Linear 输入元件光电二极管
页数 文件大小 规格书
16页 171K
描述
LTC2918 - Voltage Supervisor with 27 Selectable Thresholds and Watchdog Timer; Package: MSOP; Pins: 10; Temperature Range: 0°C to 70°C

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LTC2918CMS-B1#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：MSOP包装说明：TSSOP, TSSOP10,.19,20
针数：10Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.09其他特性：MANUAL RESET INPUT
可调阈值：YES模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码：S-PDSO-G10JESD-609代码：e3
长度：3 mm湿度敏感等级：1
信道数量：1功能数量：1
端子数量：10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：TSSOP封装等效代码：TSSOP10,.19,20
封装形状：SQUARE封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260电源：2.5 V
认证状态：Not Qualified座面最大高度：1.1 mm
子类别：Power Management Circuits最大供电电流 (Isup)：0.08 mA
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：1.5 V
标称供电电压 (Vsup)：2.5 V表面贴装：YES
技术：CMOS温度等级：COMMERCIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：3 mm
Base Number Matches：1

LTC2918CMS-B1#PBF 数据手册

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LTC2917/LTC2918  
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating  
temperature range, otherwise specifications are at TA = 25°C. VCC = 2.5V, unless otherwise noted. (Note 2)  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
Reset Output (RST)  
●
●
●
t
t
t
Internal Reset Timeout Period  
Adjustable Reset Timeout Period  
V
C
= V  
CC  
150  
16  
200  
20  
260  
25  
ms  
ms  
μs  
RST(INT)  
RST(EXT)  
UV  
RT  
= 2.2nF  
RT  
VM Undervoltage Detect to RST  
Asserted  
VM Less Than Reset Threshold  
10  
80  
150  
V
by More Than 5%  
MTX  
●
●
●
V
Output Voltage Low RST  
V
CC  
V
CC  
V
CC  
= 3.3V, I = 2.5mA  
RST  
0.15  
0.15  
0.05  
0.4  
0.3  
0.2  
V
V
V
OL  
= 1V, I  
= 100μA  
RST  
= 0.8V, I  
= 15μA  
RST  
●
I
RST Output Voltage High Leakage  
RST = V  
1
μA  
OH(RST)  
CC  
Watchdog Timer Control (WT)  
●
●
●
●
I
I
WT Pull-Up Current  
V
= 0.25V  
= 1.1V  
–2  
2
–3  
3
–4  
4
μA  
μA  
WT(UP)  
WT  
WT Pull-Down Current  
WT Internal Timer Threshold  
V
WT  
WT(DOWN)  
V
V
WT  
Rising, Referenced to V  
CC  
–100  
–160  
1
–300  
8
mV  
μA  
WT(INT, LH)  
I
Internal WT V Detect Current  
V
= V  
WT(INT)  
WT(DIS)  
CC  
WT CC  
I
Watchdog Disable Hold Current  
V
WT  
= 0V  
–3.5  
μA  
Watchdog Input (WDI)  
●
●
t
t
Internal Watchdog Upper Boundary  
V
= V  
CC  
1.3  
1.6  
50  
2
s
WDU(INT)  
WDL(INT)  
WT  
Internal Watchdog Lower Boundary  
(Note 5)  
B Versions, V = V  
37.5  
62.5  
ms  
WT  
CC  
●
●
t
t
External Watchdog Upper Boundary  
C
= 2.2nF  
130  
160  
200  
0.4  
ms  
ms  
WDU(EXT)  
WT  
External Watchdog Lower Boundary  
(Note 5)  
B Versions, C = 2.2nF  
t
/32  
WDU(EXT)  
WDL(EXT)  
WT  
●
●
●
●
V
V
Input Low Voltage  
Input High Voltage  
Input Pulsewidth  
V
V
IL(WDI)  
IH(WDI)  
PW(WDI)  
1.1  
t
400  
ns  
μA  
WDI Leakage Current  
1
Manual Reset Input (LTC2918)  
●
●
●
●
V
Input Low Voltage  
Input High Voltage  
Pull-Up Resistance  
Pulsewidth  
0.2 • V  
150  
V
V
IL(MR)  
IH(MR)  
CC  
V
0.8 • V  
50  
CC  
R
100  
kΩ  
ns  
PU  
t
250  
PW(MR)  
Note 1: Stresses beyond those listed under Absolute Maximum Ratings  
may cause permanent damage to the device. Exposure to any Absolute  
Maximum Rating condition for extended periods may affect device  
reliability and lifetime.  
from higher voltage supplies requires a series dropping resistor. See  
Applications Information.  
Note 4: Input impedance is dependent on the configuration of the SEL  
pins.  
Note 2: All currents into pins are positive; all voltages are referenced to  
GND unless otherwise noted.  
Note 5: In the LTC2917-B/LTC2918-B, edges must occur on WDI with a  
period between the lower and upper boundary or RST is invoked. For the  
LTC2917-A/LTC2918-A, the edges must simply occur before the upper  
boundary. See Applications Information.  
Note 3: V maximum pin voltage is limited by input current. Since the  
CC  
V
pin has an internal 6.2V shunt regulator, a low impedance supply  
CC  
which exceeds 5.7V may exceed the rated terminal current. Operation  
29178fb  
5
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