參數(shù)資料
型號(hào)： L9952GXPTR
廠商： STMICROELECTRONICS
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO36
封裝： LEAD FREE, SSO-36
文件頁數(shù)： 33/68頁
文件大?。?/td> 859K
代理商： L9952GXPTR
L9952GXP
Electrical characteristics
Doc ID 13518 Rev 5
Figure 14. Watchdog, closed and open window tolerances and save trigger area
7.8
High side outputs
7.8.1
Output (Out_HS)
The voltages are referred to gnd and currents are assumed positive, when the current flows
into the pin. 6V < VS < 18V; 4.8V < V1 < 5.2V; Tj = -40°C...130°C, unless otherwise
specified.
4.5
7.5
12
20
save trigger area
TCW, min
TCW, max
TWD= 10ms
TOW, max
TOW, min
TWD = nominal trigger time
TCW = closed window
TOW = open window
time / ms
watchdog failure
unde
fi
ne
d
undefined
Table 17.
High side outputs (Out_HS)
Item
Symbol
Parameter
Test condition
Min.
Typ. Max. Unit
7.8.1
RDSON
OUT_HS
Static Drain Source
On-resistance to supply
(IOUT_HS=150mA)
Tj = 25°C
0
1.0
1.5
Ω
Tj = 125°C
01.6
3
Ω
7.8.2
tdONHS
Switch on delay time
0.2 VS
10
35
60
s
7.8.3
tdOFFHS
Switch off delay time
0.8VS
40
95
150
s
7.8.4
tdSDHS
Short circuit filter time
Tested by scan
chain
64*
TOSC
7.8.5
tdARHS
Auto recovery filter time
Tested by scan
chain
400*
TOSC
7.8.6
dVout/dt
Slew rate
0.2
0.5
0.8
V/s
7.8.7
IOSDHS
Short circuit shutdown
current
480
900
1320
mA
7.8.8
IOLD
Open load detection
current
40
80
120
mA
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