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LTC3826IUH#TRPBF PDF预览

LTC3826IUH#TRPBF

更新时间: 2024-02-09 19:19:09
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凌特 - Linear 控制器
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LTC3826IUH#TRPBF 数据手册

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LTC3826  
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating  
temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, VRUN/SS1, 2 = 5V unless otherwise noted.  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
I
Phase Detector Output Current  
Sinking Capability  
Sourcing Capability  
PLLLPF  
f
f
< f  
> f  
–5  
5
μA  
μA  
PLLIN/MODE  
PLLIN/MODE  
OSC  
OSC  
PGOOD Output  
V
PGOOD Voltage Low  
PGOOD Leakage Current  
PGOOD Trip Level  
I
= 2mA  
= 5V  
0.1  
0.3  
1
V
PGL  
PGOOD  
I
V
V
μA  
PGOOD  
PGOOD  
V
with Respect to Set Regulated Voltage  
Ramping Negative  
Ramping Positive  
PG  
FB  
V
V
–12  
8
–10  
10  
–8  
12  
%
%
FB  
FB  
Note 4: The LTC3826 is tested in a feedback loop that servos V  
to a  
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.  
ITH1, 2  
specified voltage and measures the resultant V  
.
FB1, 2  
Note 5: Dynamic supply current is higher due to the gate charge being  
delivered at the switching frequency. See Applications Information.  
Note 2: The LTC3826E is guaranteed to meet performance specifications  
from 0°C to 85°C. Specifications over the –40°C to 85°C operating  
temperature range are assured by design, characterization and correlation  
with statistical process controls. The LTC3826I is guaranteed to meet  
performance specifications over the full –40°C to 85°C operating  
temperature range.  
Note 6: Rise and fall times are measured using 10% and 90% levels. Delay  
times are measured using 50% levels.  
Note 7: The minimum on-time condition is specified for an inductor  
peak-to-peak ripple current ≥40% of I  
(see minimum on-time  
MAX  
considerations in the Applications Information section).  
Note 3: T is calculated from the ambient temperature T and power  
J
A
dissipation P according to the following formulas:  
D
T = T + (P • 34 °C/W)  
J
A
D
3826fc  
4

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