参数资料
型号: LTC4261IUFD#PBF
厂商: Linear Technology
文件页数: 3/34页
文件大小: 361K
描述: IC CTRLR HOTSWAP W/ADC 24-QFN
标准包装: 73
类型: 热交换控制器
应用: 通用
内部开关:
电源电压: 9 V ~ 11.2 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-WFQFN 裸露焊盘
供应商设备封装: 24-QFN(5x4)
包装: 管件
LTC4261/LTC4261-2
3
42612fc
 
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at I
IN
 = 5mA, T
A
 = 25癈. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
General
V
Z
Shunt Regulator Voltage at V
IN
I
IN
 = 5mA
l
10.65
11.2
11.8
V
DV
Z
Shunt Regulator Load Regulation
I
IN
 = 5mA to 25mA
l
370
600
mV
I
IN
V
IN
 Supply Current
V
IN
 = V
Z
  0.3V
l
2
5
mA
V
IN(UVLO)
V
IN
 Undervoltage Lockout Threshold
V
IN
 Rising
l
8.5
9
9.5
V
DV
IN(UVLO)
V
IN
 Undervoltage Lockout Hysteresis
l
0.3
0.7
1
V
INTV
CC
Internal Regulator Voltage
I
LOAD
 = 1mA to 20mA, I
IN
 = 25mA
l
4.75
5
5.25
V
Gate Drive
V
GATEH
GATE Pin Output High Voltage
V
IN
 = 10.65V
l
10
10.25
10.5
V
I
GATE(UP)
GATE Pin Pull-Up Current
V
GATE
 = 4V
l
7.5
11.5
15.5
I
GATE(OFF)
GATE Turn-Off Current
V
SENSE
 = 400mV , V
GATE
 = 4V
l
45
90
120
mA
Gate Off, V
GATE
 = 4V
l
60
110
140
mA
t
PHL(SENSE)
SENSE High to Current Limit
V
SENSE
 = 100mV , C
GATE
 = 1pF
l
0.5
1.5
Propagation Delay
V
SENSE
 = 300mV , C
GATE
 = 1pF
l
0.2
0.5
t
PHL(GATE)
GATE Off Propagation Delay
Input High (OV , EN, PGI), Input Low (ON, UVL),
C
GATE
 = 1pF
l
0.2
0.5
t
PHLCB
Circuit Breaker Gate Off Delay
V
GATE
 < 2V , C
GATE
 = 1pF
l
440
530
620
I
RAMP
RAMP Pin Current
V
SS
 = 2.56V
l
18
20
22
V
SS
SS Pin Clamp Voltage
l
2.43
2.56
2.69
V
I
SS(UP)
SS Pin Pull-Up Current
V
SS
 = 0V
l
7
10
13
I
SS(DN)
SS Pin Pull-Down Current
V
SS
 = 2.56V
l
6
12
20
mA
Input Pins
V
UVH(TH)
UVH Threshold Voltage
V
UVH
 Rising
LTC4261C
LTC4261I
l
l
2.534
2.522
2.56
2.56
2.586
2.598
V
V
UVL(TH)
UVL Threshold Voltage
V
UVL
 Falling
LTC4261C
LTC4261I
l
l
2.263
2.254
2.291
2.291
2.319
2.328
V
DV
UV(HYST)
Built-In UV Hysteresis
UVH and UVL Tied Together
l
256
269
282
mV
dV
UV
UVH, UVL Minimum Hysteresis
15
mV
V
UVLR(TH)
UVL Reset Threshold Voltage
V
UVL
 Falling
l
1.12
1.21
1.30
V
DV
UVLR(HYST)
UVL Reset Hysteresis
60
mV
V
OV(TH)
OV Pin Threshold Voltage
V
OV
 Rising
LTC4261C
LTC4261I
l
l
1.744
1.735
1.770
1.770
1.796
1.805
V
DV
OV(HYST)
OV Pin Hysteresis
l
18
37.5
62
mV
DV
SENSE
Current Limit Sense Voltage Threshold   V
SENSE
  V
EE
l
45
50
55
mV
V
INPUT(TH)
ON, EN, PGI, FLTIN Threshold Voltage    ON, EN, PGI, FLTIN Falling or Rising
l
0.8
1.4
2
V
DV
INPUT(HYST)
ON, EN, PGI, FLTIN Hysteresis
170
mV
V
PGIO(TH)
PGIO Pin Input Threshold Voltage
V
PGIO
 Rising
l
1.10
1.25
1.40
V
DV
PGIO(HYST)
PGIO Pin Input Hysteresis
100
mV
I
INPUT
ON, EN, UVH, UVL, OV , SENSE, PGI,
FLTIN Input Current
ON, EN, UVH, UVL, OV , SENSE, PGI, FLTIN = 3V
l
0
?
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