VN7140AJ Datasheet, PDF (16/55 Pages) STMicroelectronics – High-side driver with MultiSense analog feedback for automotive applications

Electrical specification
VN7140AJ, VN7140AS
7 V < VCC < 18 V; -40°C < Tj < 150°C
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
Transfer function
VSENSE_TC (T) = VSENSE_TC (T0) + dVSENSE_TC / dT * (T - T0)
VCC supply voltage analog feedback (VN7140AJ only)
VSENSE_VCC
MultiSense output
voltage
proportional to VCC
supply voltage
VCC = 13 V; VSEn = 5 V;
VSEL0 = 5 V; VSEL1 = 5 V; VIN
= 0 V; RSENSE = 1 kΩ
3.16 3.23
3.3
V
Transfer function ⁽³⁾
VSENSE_VCC = VCC / 4
Fault diagnostic feedback (see Table 10: "Truth table")
VSENSEH
ISENSEH
MultiSense output
voltage in fault
condition
MultiSense output
current in fault
condition
VCC = 13 V; VIN = 0 V;
VSEn = 5 V; VSEL0 = 0 V;
VSEL1 = 0 V; IOUT = 0 A;
VOUT = 4 V; RSENSE = 1 kΩ;
VCC = 13 V; VSENSE = 5 V
5
6.6
V
7
20 30 mA
MultiSense timings (current sense mode - see Figure 7: "MultiSense timings (current sense
mode)")⁽⁴⁾
tDSENSE1H
Current sense
settling time from
rising edge of SEn
VIN = 5 V; VSEn = 0 V to 5 V;
RSENSE = 1 kΩ; RL = 13 Ω
60 µs
tDSENSE1L
Current sense
disable delay time
from falling edge of
SEn
VIN = 5 V; VSEn = 5 V to 0 V;
RSENSE = 1 kΩ; RL = 13 Ω
5
20
µs
tDSENSE2H
Current sense
settling time from
rising edge of
INPUT
VIN = 0 V to 5 V; VSEn = 5 V;
RSENSE = 1 kΩ; RL = 13 Ω
100 250 µs
ΔtDSENSE2H
tDSENSE2L
Current sense
settling time from
rising edge of IOUT
(dynamic response
to a step change of
IOUT)
Current sense turn-
off delay time from
falling edge of
INPUT
VIN = 5 V; VSEn = 5 V;
RSENSE = 1 kΩ; ISENSE
= 90 % of ISENSEMAX;
RL = 13 Ω
VIN = 5 V to 0 V; VSEn = 5 V;
RSENSE = 1 kΩ; RL = 13 Ω
100 µs
50 250 µs
MultiSense timings (chip temperature sense mode - see Figure 8: "Multisense timings (chip
temperature and VCC sense mode) (VN7140AJ only)") (VN7140AJ only)⁽⁴⁾
tDSENSE3H
tDSENSE3L
VSENSE_TC settling
time from rising
edge of SEn
VSENSE_TC disable
delay time from
falling edge of SEn
VSEn = 0 V to 5 V;
VSEL0 = 0 V; VSEL1 = 5 V;
RSENSE = 1 kΩ
VSEn = 5 V to 0 V;
VSEL0 = 0 V; VSEL1 = 5 V;
RSENSE = 1 kΩ
60 µs
20 µs
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