參數(shù)資料
型號： LM25066PSQX
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 電源管理
英文描述： POWER SUPPLY SUPPORT CKT, QCC24
封裝： LLP-24
文件頁數(shù)： 44/48頁
文件大小： 1456K
代理商： LM25066PSQX
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
Gate Control (GATE Pin)
I
GATE
Source current
Normal operation
-28
-22
-16
A
Fault Sink current
UVLO = 1V
1.5
2
2.5
mA
POR Circuit Breaker sink current
VIN - SENSE = 150 mV or VIN < R
POR,
V
GATE = 5V
105
190
275
mA
V
GATE
Gate output voltage in normal operation GATE voltage with respect to ground
17
18.8
20.3
V
OUT Pin
I
OUT-EN
OUT bias current, enabled
OUT = VIN, normal operation
16
A
I
OUT-DIS
OUT bias current, disabled (Note 4)
Disabled, OUT = 0V, SENSE = VIN
-12
A
Current Limit
V
CL
Threshold voltage
CL = GND
22.5
25
27
mV
CL = GND, T
J = 10°C to 85°C
23
25
27
CL = VDD
42.3
46
49.7
t
CL
Response time
VIN-SENSE stepped from 0 mV to 80
mV
1.2
s
I
SENSE
SENSE input current
Enabled, SENSE = OUT
33
A
Disabled, OUT = 0V
46
Enabled, OUT = 0V
45
Circuit Breaker
V
CB
Threshold voltage x 1.8
VIN - SENSE, CL = GND, CB = GND
35
45
55
mV
CB:CL Ratio
CB = GND
1.6
1.8
2
V
CB
Threshold voltage x 3.6
VIN - SENSE, CL = GND, CB = VDD
70
90
110
mV
CB:CL Ratio
CB = VDD
3.1
3.6
4
t
CB
Response time
VIN - SENSE stepped from 0 mV to 150
mV, time to GATE low, no load
0.6
1.2
s
Timer (TIMER pin)
V
TMRH
Upper threshold
1.54
1.7
1.85
V
TMRL
Lower threshold
Restart cycles
0.85
1.0
1.07
V
End of 8th cycle
0.3
V
Re-enable threshold
0.3
V
I
TIMER
Insertion time current
TIMER pin = 2V
-3
-5.5
-8
A
Sink current, end of insertion time
1.4
1.9
2.4
mA
Fault detection current
-120
-90
-60
A
Fault sink current
2.8
A
DC
FAULT
Fault Restart Duty Cycle
0.67
%
t
FAULT_DELAY
Fault to GATE low delay
TIMER pin reaches the upper threshold
17
s
Internal Reference
V
REF
Reference Voltage
2.703
2.73
2.757
V
ADC and MUX
Resolution
12
Bits
INL
Integral Non-Linearity
ADC only
+/-1
LSB
t
AQUIRE
Acquisition + Conversion Time
Any channel
100
s
t
RR
Acquisition Round Robin Time
Cycle all channels
1
ms
5
www.national.com
LM25066
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