参数资料
型号: L9952GXPTR
厂商: STMICROELECTRONICS
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO36
封装: LEAD FREE, SSO-36
文件页数: 36/68页
文件大小: 859K
代理商: L9952GXPTR
L9952GXP
Electrical characteristics
Doc ID 13518 Rev 5
7.10
Wake up inputs ( WU1..WU4)
The voltages are referred to GND and currents are assumed positive, when the current
flows into the pin. 6V < VS < 18V; Tj = -40 to 130 °C, unless otherwise specified.
7.9.6
tSCF
Short circuit filter time
Tested by scan
chain
64*
TOSC
7.9.7
SR
Slew Rate
0.2
2
4
V/s
1.
The output is capable to switch off relay coils with the impedance of RL=160
Ω; L = 300mH
(RL=220
Ω; L= 420mH); at VS = 40V (Load dump condition)
Table 19.
Relay drivers (continued)
Item
Symbol
Parameter
Test condition
Min.
Typ. Max. Unit
Table 20.
Wake up inputs(1)(WU1...WU4)
1.
Defines whether the inputs W1..4 are configured with current source or current sink in standby mode.
Item
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
7.10.1
VWUthp
Wake-up negative
edge threshold voltage
0.4 Vs
0.45 Vs
0.5 Vs
V
7.10.2
VWUthn
Wake-up positive edge
threshold voltage
0.5 Vs
0.55 Vs
0.6 Vs
V
7.10.3
VHYST
Hysteresis
0.05 Vs
0.1 Vs
0.15 Vs
V
7.10.4
tWU
Minimum time for
wake-up
51
64
77
s
7.10.5
IWU_stdby
Input current in standby
mode
1.5V<VIN< (Vs-3V)
10
20
30
A
7.10.6
RWU_act
Input resistor to GND in
active mode and in
standby mode during
wake-up request
100
275
450
k
Ω
7.10.7
Nn
Number of samples
During OUT_HS
on, cyclic sense
mode (100us
cyclic HS on time)
2 (at 80s and 100s)
7.10.8
Vwuthl
Pending wake up
request low threshold
1.0
1.25
1.5
V
7.10.9
Vwuthh
Pending wake up
request high threshold
Vs-3
Vs-2.2
Vs-1.4
V
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