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LTC4260IGN Folha de dados(PDF) 3 Page - Linear Technology

Nome de Peças LTC4260IGN
Descrição Electrónicos  Positive High Voltage Hot Swap Controller with I2C Compatible Monitoring
PDF  28 Pages
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Fabricante Electrônico  LINER [Linear Technology]
Página de início  http://www.linear.com
Logo LINER - Linear Technology

LTC4260IGN Folha de dados(HTML) 3 Page - Linear Technology

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LTC4260
3
4260f
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VDD = 48V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
INTVCC(UVL)
VCC Supply Undervoltage Lockout
INTVCC Falling
●
3.4
3.8
4.2
V
INTVCC
Internal Regulator Voltage
●
5
5.5
6
V
Gate Drive
tD
Turn-On Delay
●
50
100
150
ms
∆VGATE
External N-Channel Gate Drive
VDD = 20V to 80V
●
10
14
18
V
(VGATE – VSOURCE)VDD = 8.5V to 20V
●
4.5
6
18
V
IGATE(UP)
External N-Channel Pull-Up Current
Gate Drive On, VGATE = 0V
●
–14
–18
–22
µA
IGATE(FST)
External N-Channel Fast Pull-Down
Fast Turn Off, VGATE = 48V, VSOURCE = 38V
●
400
600
1000
mA
IGATE(DN)
External N-Channel Pull-Down Current
Gate Drive Off, VGATE = 58V, VSOURCE = 48V
●
0.7
1
1.4
mA
ISOURCE
SOURCE Pin Input Current
SOURCE = 48V
●
200
400
600
µA
Input Pins
VON(TH)
ON Pin Threshold Voltage
VON Rising
●
1.19
1.235
1.27
V
∆VON(HYST)
ON Pin Hysteresis
●
60
130
200
mV
ION(IN)
ON Pin Input Current
VON = 1.2V
●
0
±1
µA
VOV(TH)
OV Pin Threshold Voltage
VOV Rising
●
3.43
3.5
3.56
V
∆VOV(HYST)
OV Pin Hysteresis
●
70
90
120
mV
IOV(IN)
OV Pin Input Current
VOV = 3.5V
●
0
±1
µA
VUV(TH)
UV Pin Threshold Voltage
VUV Rising
●
3.43
3.5
3.56
V
∆VUV(HYST)
UV Pin Hysteresis
●
310
380
440
mV
IUV(IN)
UV Pin Input Current
VUV = 3.5V
●
0
±2
µA
VUV(RTH)
UV Pin Reset Threshold Voltage
VUV Falling
●
1.18
1.235
1.27
V
∆VUV(RHYST)
UV Pin Reset Threshold Hysteresis
●
80
160
250
mV
∆VSENSE(TH)
Current Limit Sense Voltage Threshold
VFB = 3.5V
●
40
50
60
mV
(VDD – VSENSE)VFB = 0V
●
10
20
30
mV
ISENSE(IN)
SENSE Pin Input Current
VSENSE = 48V
●
70
100
130
µA
VFB
Foldback Pin Power Good Threshold
FB Rising
●
3.43
3.5
3.56
V
∆VFB(HYST)
FB Pin Power Good Hysteresis
●
80
100
120
mV
IFB
Foldback Pin Input Current
FB = 3.5V
●
0
±2
µA
VBD_PRST(TH)
BD_PRST Input Threshold
VBD_PRST Rising
●
1.2
1.235
1.27
V
∆VBD_PRST(HYST) BD_PRST Hysteresis
●
70
130
190
mV
IBD_PRST
BD_PRST Pullup Current
BD_PRST = 0V
●
–7
–10
–16
µA
VGPIO(TH)
GPIO Pin Input Threshold
VGPIO Rising
●
1.6
1.8
2
V
∆VGPIO(HYST)
GPIO Pin Hysteresis
80
mV
VGPIO(OL)
GPIO Pin Output Low Voltage
IGPIO = 2mA
●
0.25
0.5
V
IGPIO(IN)
GPIO Pin Input Leakage Current
VGPIO = 80V
●
0
±10
µA
RADIN
ADIN Pin Input Resistance
VADIN = 1.28V
●
210
MΩ
IADIN
ADIN Pin Input Current
VADIN = 2.56V
●
0
±1
µA
Timer
VTIMER(H)
TIMER Pin High Threshold
VTIMER Rising
●
1.2
1.235
1.28
V
VTIMER(L)
TIMER Pin Low Threshold
VTIMER Falling
●
0.1
0.2
0.3
V
ITIMER(UP)
TIMER Pin Pull-Up Current
VTIMER = 0V
●
–80
–100
–120
µA
ITIMER(DN)
TIMER Pin Pull-Down Current
VTIMER = 1.3V
●
1.4
2
2.6
µA
ITIMER(RATIO)
TIMER Pin Current Ratio
●
1.6
2
2.7
%
ITIMER(DN)/ITIMER(UP)



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