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LM25069 Fiches technique(PDF) 4 Page - Texas Instruments

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No de pièce LM25069
Description  Positive Low Voltage Power Limiting Hot Swap Controller
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

LM25069 Fiches technique(HTML) 4 Page - Texas Instruments

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LM25069
SNVS607D – FEBRUARY 2009 – REVISED DECEMBER 2010
www.ti.com
Electrical Characteristics
Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the junction temperature (TJ) range of -40°C
to +85°C. Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values
represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise
stated the following conditions apply: VIN = 12V.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
Input (VIN pin)
IIN-EN
Input Current, enabled
UVLO = 2V and OVLO = 0.7V, VIN = 14V
1.6
2.4
mA
IIN-DIS
Input Current, disabled
UVLO = 0.7V or OVLO = 2V
1.0
1.6
mA
POR
Power On Reset threshold at VIN
VIN Increasing
2.6
2.8
V
PORHYS
POR hysteresis
VIN decreasing
150
mV
OUT pin
IOUT-EN
OUT bias current, enabled
OUT = VIN, Normal operation
0.30
µA
IOUT-DIS
OUT bias current, disabled (1)
Disabled, OUT = 0V, SENSE = VIN
-12
UVLO, OVLO pins
UVLOTH
UVLO threshold
1.154
1.17
1.183
V
UVLOHYS
UVLO hysteresis current
UVLO = 1V
15
20
26
µA
UVLODEL
UVLO delay
Delay to GATE high
15
µs
Delay to GATE low
8.3
UVLOBIAS
UVLO bias current
UVLO = 3V
1
µA
OVLOTH
OVLO threshold
1.142
1.16
1.185
V
OVLOHYS
OVLO hysteresis current
OVLO = 2V
-26
-20
-15
µA
OVLODEL
OVLO delay
Delay to GATE high
16
µs
Delay to GATE low
8.2
OVLOBIAS
OVLO bias current
OVLO = 1V
1
µA
Power Limit (PWR pin)
PWRLIM-1
Power limit sense voltage (VIN-SENSE)
SENSE-OUT = 12V, RPWR = 69.8 kΩ
19
25
31
mV
PWRLIM-2
SENSE-OUT = 6V, RPWR = 34.8 kΩ
19
25
31
mV
IPWR
PWR pin current
VPWR = 2.5V
-15
µA
RSAT(PWR)
PWR pin impedance when disabled
UVLO = 0.7V
140
Gate Control (GATE pin)
IGATE
Source current
Normal Operation
-27
-20
-13
µA
Sink current
UVLO = 1V
1.5
2
2.7
mA
VIN - SENSE = 150 mV or VIN < POR,
160
260
375
mA
VGATE = 5V
VGATE
Gate output voltage in normal operation
GATE voltage with respect to ground
18
19.5
21
V
Current Limit
VCL
Threshold voltage
VIN-SENSE voltage
45
50
55
mV
tCL
Response time
VIN-SENSE stepped from 0 mV to 80 mV
15
µs
ISENSE
SENSE input current
Enabled, SENSE = OUT
23
µA
Disabled, OUT = 0V
12
Enabled, OUT = 0V
62
Circuit Breaker
VCB
Threshold voltage
VIN - SENSE
75
95
110
mV
tCB
Response time
VIN - SENSE stepped from 0 mV to 150
0.19
0.36
µs
mV, time to GATE low, no load
Timer (TIMER pin)
VTMRH
Upper threshold
1.6
1.72
1.85
V
(1)
OUT bias current (disabled) due to leakage current through an internal 1.0 M
Ω resistance from SENSE to VOUT.
4
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