參數(shù)資料
型號： LTC4261IGN#TRPBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring; Package: SSOP; No of Pins: 28; Temperature Range: -40°C to +85°C
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO28
封裝： 0.150 INCH, LEAD FREE, PLASTIC, SSOP-28
文件頁數(shù)： 23/34頁
文件大?。?/td> 357K
代理商： LTC4261IGN#TRPBF
LTC4261/LTC4261-2
3
42612fc
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at IIN = 5mA, TA = 25°C. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
General
VZ
Shunt Regulator Voltage at VIN
IIN = 5mA
l
10.65
11.2
11.8
V
DVZ
Shunt Regulator Load Regulation
IIN = 5mA to 25mA
l
370
600
mV
IIN
VIN Supply Current
VIN = VZ – 0.3V
l
2
5
mA
VIN(UVLO)
VIN Undervoltage Lockout Threshold
VIN Rising
l
8.5
9
9.5
V
DVIN(UVLO)
VIN Undervoltage Lockout Hysteresis
l
0.3
0.7
1
V
INTVCC
Internal Regulator Voltage
ILOAD = 1mA to 20mA, IIN = 25mA
l
4.75
5
5.25
V
Gate Drive
VGATEH
GATE Pin Output High Voltage
VIN = 10.65V
l
10
10.25
10.5
V
IGATE(UP)
GATE Pin Pull-Up Current
VGATE = 4V
l
–7.5
–11.5
–15.5
A
IGATE(OFF)
GATE Turn-Off Current
VSENSE = 400mV, VGATE = 4V
l
45
90
120
mA
Gate Off, VGATE = 4V
l
60
110
140
mA
tPHL(SENSE)
SENSE High to Current Limit
VSENSE = 100mV, CGATE = 1pF
l
0.5
1.5
s
Propagation Delay
VSENSE = 300mV, CGATE = 1pF
l
0.2
0.5
s
tPHL(GATE)
GATE Off Propagation Delay
Input High (OV, EN, PGI), Input Low (ON, UVL),
CGATE = 1pF
l
0.2
0.5
s
tPHLCB
Circuit Breaker Gate Off Delay
VGATE < 2V, CGATE = 1pF
l
440
530
620
s
IRAMP
RAMP Pin Current
VSS = 2.56V
l
–18
–20
–22
A
VSS
SS Pin Clamp Voltage
l
2.43
2.56
2.69
V
ISS(UP)
SS Pin Pull-Up Current
VSS = 0V
l
–7
–10
–13
A
ISS(DN)
SS Pin Pull-Down Current
VSS = 2.56V
l
6
12
20
mA
Input Pins
VUVH(TH)
UVH Threshold Voltage
VUVH Rising
LTC4261C
LTC4261I
l
2.534
2.522
2.56
2.586
2.598
V
VUVL(TH)
UVL Threshold Voltage
VUVL Falling
LTC4261C
LTC4261I
l
2.263
2.254
2.291
2.319
2.328
V
DVUV(HYST)
Built-In UV Hysteresis
UVH and UVL Tied Together
l
256
269
282
mV
dVUV
UVH, UVL Minimum Hysteresis
15
mV
VUVLR(TH)
UVL Reset Threshold Voltage
VUVL Falling
l
1.12
1.21
1.30
V
DVUVLR(HYST)
UVL Reset Hysteresis
60
mV
VOV(TH)
OV Pin Threshold Voltage
VOV Rising
LTC4261C
LTC4261I
l
1.744
1.735
1.770
1.796
1.805
V
DVOV(HYST)
OV Pin Hysteresis
l
18
37.5
62
mV
DVSENSE
Current Limit Sense Voltage Threshold VSENSE – VEE
l
45
50
55
mV
VINPUT(TH)
ON, EN, PGI, FLTIN Threshold Voltage
ON, EN, PGI, FLTIN Falling or Rising
l
0.8
1.4
2
V
DVINPUT(HYST)
ON, EN, PGI, FLTIN Hysteresis
170
mV
VPGIO(TH)
PGIO Pin Input Threshold Voltage
VPGIO Rising
l
1.10
1.25
1.40
V
DVPGIO(HYST)
PGIO Pin Input Hysteresis
100
mV
IINPUT
ON, EN, UVH, UVL, OV, SENSE, PGI,
FLTIN Input Current
ON, EN, UVH, UVL, OV, SENSE, PGI, FLTIN = 3V l
0
±2
A
ELECTRICAL CHARACTERISTICS
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