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L9952GXP Datasheet(PDF) 41 Page - STMicroelectronics

Part # L9952GXP
Description  Power management system IC
PDF  68 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9952GXP Datasheet(HTML) 41 Page - STMicroelectronics

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L9952GXP
Electrical characteristics
Doc ID 13518 Rev 5
41/68
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/µs
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
µs
7.10.5
IWU_stdby
Input current in standby
mode
1.5V<VIN< (Vs-3V)
10
20
30
µA
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 80µs and 100µs)
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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