mc33996ek/r2 Freescale Semiconductor, Inc, mc33996ek/r2 Datasheet - Page 16

• Manufacturer Part Number: mc33996ek/r2
• Description: 16-output Switch With Spi Control
• Manufacturer: Freescale Semiconductor, Inc

calculated by multiplying the current area under the current
curve (I
non-repetitive method at 0.3 A, indicates the maximum
energy to be 50 mJ at 150°C junction temperature per output.
Reverse Battery Protection
protection on the VPWR pin.
16
33996
TYPICAL APPLICATIONS
INTRODUCTION
Drain-to-Source ON
Voltage (V
Drain-to-Source ON
Voltage (V
Characterization of the output clamps, using a single pulse
The 33996 device requires external reverse battery
Drain-to-Source Clamp
Voltage (V
Drain Current
(I
Drain-to-Source C lamp
Voltage (V
Drain Current
(I
A
D
D
) times the clamp voltage (V
= 0.3 A)
DS (O N)
DS(ON)
= 0.3 A)
Figure 13. Output Voltage Clamping
CL
GND
)
G ND
CL
= 50 V)
)
= 45 V)
50 V)
Curren t
Area (I
A
)
CL
Drain Voltage
Drain Voltage
Clamp Energy
(E
) (see
J
Clamp Energy
(E
= I
J
AVG
= I
Figure
A
x V
x V
CL
Time
CL
Time
13).
)
)
substrate diode. During reverse battery condition, current will
flow through the load via the substrate diode. Under this
circumstance relays may energize and lamps will turn on. If
load reverse battery protection is desired, a diode must be
placed in series with the load.
Overtemperature Fault
incorporated for each individual output. The shutdown
following an over temperature condition depends on the
control bit set in the Global Shutdown / Retry Control register.
Each independent output shuts down at 155°C to 180°C.
When an output shuts down due to an Overtemperature
Fault, no other outputs are affected. The MCU recognizes the
fault by a logic [1] in the Fault Status bit (bit 23 in the SO
Response register). After the 33996 has cooled below the
switch point temperature and 10°C hysteresis, the output will
function as defined by the shutdown / retry bit 17 in the Global
Shutdown/Retry Control register.
All outputs consist of a power MOSFET with an integral
Overtemperature detect circuits are specifically
Analog Integrated Circuit Device Data
Freescale Semiconductor