参数资料
型号: LTC4252A-2IMS#PBF
厂商: Linear Technology
文件页数: 4/36页
文件大小: 328K
描述: IC CNTRLR HOTSWAP NEGVOLT 10MSOP
标准包装: 50
类型: 热交换控制器
应用: 通用
内部开关:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
供应商设备封装: 10-MSOP
包装: 管件
LTC4252-1/LTC4252-2
LTC4252A-1/LTC4252A-2
4
425212fe
For more information www.linear.com/LTC4252-1
SYMBOL    PARAMETER
CONDITIONS
LTC4252-1/-2
LTC4252A-1/-2
UNITS
MIN
TYP    MAX    MIN
TYP    MAX
I
TMR
TIMER Pin Current
Timer On (Initial Cycle/Latchoff/
Shutdown Cooling, Sourcing),
V
TMR
 = 2V
5.8
5.8
Timer Off (Initial Cycle, Sinking),
V
TMR
 = 2V
28
28
mA
Timer On (Circuit Breaker, Sourcing,
I
DRN
 = 0礎), V
TMR
 = 2V
230
230
Timer On (Circuit Breaker, Sourcing,
I
DRN
 = 50礎), V
TMR
 = 2V
630
630
Timer Off (Circuit Breaker/
Shutdown Cooling, Sinking),
V
TMR
 = 2V
5.8
5.8
I
TMRACC
/
 
I
DRN
[(I
TMR
 at I
DRN
 = 50礎)  (I
TMR
 at I
DRN
 =
0礎)]/I
DRN
Timer On (Circuit Breaker with
I
DRN
 = 50礎)
8
8
礎/礎
V
DRNL
DRAIN Pin Voltage Low Threshold
For PWRGD Status (MS Only)
2.385
2.385
V
I
DRNL
DRAIN Leakage Current
V
DRAIN
 = 5V (4V for LTC4252A)
?.1
?
?.1
?
V
DRNCL
DRAIN Pin Clamp Voltage
I
DRN
 = 50礎
7
6
V
V
PGL
PWRGD Output Low Voltage
I
PG
 = 1.6mA (MS Only)
I
PG
 = 5mA (MS Only)
?
?/DIV>
0.2
0.4
1.1
0.2
0.4
1.1
V
V
I
PGH
PWRGD Pull-Up Current
V
PWRGD
 = 0V (Sourcing) (MS Only)
?/DIV>
40
58
80
40
58
80
t
SS
SS Default Ramp Period
SS Pin Floating, V
SS
 Ramps from
0.2V to 2V
180
SS Pin Floating, V
SS
 Ramps from
0.1V to 0.9V
230
t
PLLUG
UV Low to Gate Low
0.4
0.4
t
PHLOG
OV High to Gate Low
0.4
0.4
elecTrical characTerisTics
 
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
 = 25癈. (Note 2)
Note 1: Stresses beyond those listed under Absolute Maximum Ratings 
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All currents into device pins are positive; all currents out of device 
pins are negative. All voltages are referenced to V
EE
 unless otherwise
specified.
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