FDMS2380 Dual Integrated Solenoid Driver
FDMS2380 Rev. A
www.fairchildsemi.com8
Figure 3. Thermal Shutdown
Figure 4. Over-Voltage
Typical Characteristics T
C
= 25°C unless otherwise noted
INA
INB
DIAG
OUT
Voltage
T
J
Excitation
T
J(tsd)
NDMOS
ON
OFF
PDMOS
ON
OFF
Protection Recirculation
NDMOS turned off & PDMOS on -- forces device into
Recirculation mode to dissipate the inductive energy.
Operates in Recirculation mode for as long as INA is high
NDMOS can not turn back on until rising edge of INA
protection fault signal
INA
INB
DIAG
OUT
Voltage
Load
Excitation
V
BATT(ov)
Fast Turn Off
Current
V
BATT
Exits over-voltage protection condition
& resumes normal operation
NDMOS turned off & PDMOS on
to force device into Recirculation
protection fault signal
I
OUT
