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LTC2912

更新时间： 2023-12-20 18:44:03
品牌 Logo 应用领域
亚德诺 - ADI 监视器
页数 文件大小 规格书
14页 342K
描述
单路 UV/OV 电压监视器

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LTC2912 数据手册

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LTC2912  
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating  
temperature range, otherwise specifications are at TA = 2.°C1 VCC = 313V, VL = ꢀ14.V, VH = ꢀ1..V, LATCH = VCC unless otherwise  
noted1 (Note 2)  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
l
l
V
V
Shunt Regulator Voltage  
I
I
= 5mA  
= 5mA (H‑Grade)  
6.2  
6.2  
6.6  
6.6  
7.2  
7.3  
V
V
SHUNT  
CC  
CC  
CC  
l
l
l
l
l
l
l
l
V
Shunt Regulator Load Regulation  
I
= 2mA to 10mA  
200  
300  
mV  
V
DV  
CC  
CC  
SHUNT  
V
V
V
Supply Voltage (Note 3)  
2.3  
V
SHUNT  
CC  
Minimum V Output Valid  
DIS = 0V  
1
V
CCR(MIN)  
CC(UVLO)  
CC  
Supply Undervoltage Lockout  
Supply Undervoltage Lockout Hysteresis  
Supply Current  
DIS = 0V, V Rising  
1.9  
5
2
2.1  
50  
V
CC  
DIS = 0V  
25  
mV  
µA  
mV  
µs  
DV  
CC(UVHYST)  
I
CC  
V
= 2.3V to 6V  
29  
70  
CC  
Hn  
V
UOT  
Undervoltage/Overvoltage Threshold  
492  
50  
500  
125  
508  
500  
t
I
t
Undervoltage/Overvoltage Threshold to  
Output Delay  
V
= V  
– 5mV or V = V  
+ 5mV  
UOT  
UOD  
UOT  
Ln  
l
l
VH, VL Input Current  
15  
30  
nA  
nA  
VHL  
H‑Grade  
l
l
UV/OV Time‑Out Period  
C
C
= 1nF  
= 1nF (H‑Grade)  
6
6
8.5  
8.5  
12.5  
14  
ms  
ms  
UOTO  
TMR  
TMR  
l
l
l
l
l
l
V
V
OV Latch Clear Input High  
OV Latch Clear Input Low  
LATCH Input Current  
DIS Input Current  
1.2  
V
V
LATCH(VIH)  
LATCH(VIL)  
LATCH  
0.8  
1
I
I
V
V
> 0.5V  
µA  
µA  
V
LATCH  
> 0.5V  
1
2
3.3  
DIS  
DIS  
V
V
DIS Input High  
1.2  
DIS(VIH)  
DIS(VIL)  
TMR(UP)  
DIS Input Low  
0.8  
V
l
l
I
I
TMR Pull‑Up Current  
V
TMR  
V
TMR  
= 0V  
= 0V (H‑Grade)  
–1.3  
–1.2  
–2.1  
–2.1  
–2.8  
–2.8  
µA  
µA  
l
l
TMR Pull‑Down Current  
V
TMR  
V
TMR  
= 1.6V  
= 1.6V (H‑Grade)  
1.3  
1.2  
2.1  
2.1  
2.8  
2.8  
µA  
µA  
TMR(DOWN)  
l
l
V
V
V
Timer Disable Voltage  
Referenced to V  
–180  
1
–270  
mV  
V
TMR(DIS)  
CC  
UV/OV  
UV/OV  
Output Voltage High UV/OV/OV  
Output Voltage Low UV/OV/OV  
V
= 2.3V, I  
= 2.3V, I  
= –1µA  
OH  
CC  
l
l
V
CC  
V
CC  
= 2.5mA  
0.10  
0.01  
0.30  
0.15  
V
V
OL  
= 1V, I = 100µA  
UV  
Note ±: 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.  
Note 3: V maximum pin voltage is limited by input current. Since the  
CC  
V
pin has an internal 6.5V shunt regulator, a low impedance supply that  
CC  
exceeds 6V may exceed the rated terminal current. Operation from higher  
voltage supplies requires a series dropping resistor. See Applications  
Information.  
Note 2: All currents into pins are positive; all voltages are referenced to  
GND unless otherwise noted.  
Rev. C  
4
For more information www.analog.com  
1234567...14

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