LTC4211 Ver la hoja de datos (PDF) - Linear Technology
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LTC4211 Datasheet PDF : 40 Pages
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LTC4211
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, unless otherwise noted. (Note 2)
SYMBOL
IINON
ILEAK
IINSENSE
VCB(FAST)
VCB(SLOW)
IGATEUP
IGATEDOWN
PARAMETER
ON Input Current
RESET, FAULT Leakage Current
SENSE Input Current
SENSE Trip Voltage (VCC – VSENSE)
SENSE Trip Voltage (VCC – VSENSE)
GATE Pull-Up Current
Normal GATE Pull-Down Current
Fast GATE Pull-Down Current
ΔVGATE External N-Channel Gate Drive
VGATEOV
VFB
ΔVFB
VFBHST
VONHI
VONLO
VONHST
IFILTER
GATE Overvoltage Lockout Threshold
FB Voltage Threshold
FB Threshold Line Regulation
FB Voltage Threshold Hysteresis
ON Threshold High
ON Threshold Low
ON Hysteresis
FILTER Current
VFILTER
VFILTERHST
ITMR
FILTER Threshold
FILTER Threshold Hysteresis
TIMER Current
VTMR
TIMER Threshold
VFAULT
VFAULTHST
VOLFAULT
VOLRESET
tFAULTFC
tFAULTSC
FAULT Threshold
FAULT Threshold Hysteresis
Output Low Voltage
Output Low Voltage
FAST COMP Trip to GATE Discharging
SLOW COMP Trip to GATE Discharging
tEXTFAULT
tFILTER
FAULT Low to GATE Discharging
FILTER High to FAULT Latched
CONDITIONS
VON = VCC or GND
VRESET = VFAULT = 15V, Pull-Down Device Off
VSENSE = VCC or GND
Fast Comparator Trips
Slow Comparator Trips
Charge Pump On, VGATE ≤ 0.2V
ON Low
FAULT Latched and Circuit Breaker Tripped or in
UVLO
VGATE – VCC (For VCC = 2.5V)
VGATE – VCC (For VCC = 2.7V)
VGATE – VCC (For VCC = 3.3V)
VGATE – VCC (For VCC = 5V)
VGATE – VCC (For VCC = 12V)
VGATE – VCC (For VCC = 15V)
FB High to Low
2.5V ≤ VCC ≤ 16.5V
During Slow Fault Condition
During Normal and Reset Conditions
Latched Off Threshold, FILTER Low to High
Timer On, VTIMER = 1V
Timer Off, TIMER = 1.5V
TIMER Low to High
TIMER High to Low
Latched Off Threshold, FAULT High to Low
IFAULT = 1.6mA
IRESET = 1.6mA
VCB = 0mV to 200mV Step
VCB = 0mV to 100mV Step,
8-Pin Version or FILTER Floating
VCB = 0mV to 100mV Step,
10nF at FILTER Pin to GND
VFAULT = 5V to 0V
VFILTER = 0V to 5V
MIN
l
l 130
l 40
l –12.5
l 130
l 2.5
l 4.5
l 5.0
l 10
l 10
l
8
l 0.08
l 1.223
l
l 1.23
l 1.20
l –2.5
l
7
l 1.20
l – 2.5
l 1.20
l 0.15
l 1.20
l
l
l
l 10
l
4
l
1
l
2
TYP
±1
±0.1
±1
150
50
– 10
200
50
0.2
1.236
0.5
3
1.316
1.236
80
–2
10
1.236
80
–2
3
1.236
0.200
1.236
50
0.14
0.14
300
20
6
3
4.5
MAX
±10
±2.5
±10
170
60
–7.5
270
8
8
10
16
18
18
0.3
1.248
5
1.39
1.26
–1.5
13
1.26
–1.5
1.26
0.40
1.26
0.4
0.4
700
30
8
5
7
UNITS
μA
μA
μA
mV
mV
μA
μA
mA
V
V
V
V
V
V
V
V
mV
mV
V
V
mV
μA
μA
V
mV
μA
mA
V
V
V
mV
V
V
ns
μs
ms
μs
μs
4211fb
3
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