MC33981ABHFKR2 Freescale Semiconductor, MC33981ABHFKR2 Datasheet - Page 18

• Manufacturer Part Number: MC33981ABHFKR2
• Description: Power Switch ICs - Power Distribution HF 4.0MOHM RDSON SWITCH
• Manufacturer: Freescale Semiconductor

Specifications of MC33981ABHFKR2

• Rohs: yes
• Number Of Outputs: 1
• On Resistance (max): 6 mOhms
• Operating Supply Voltage: 6 V to 27 V
• Supply Current (max): 12 A
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: PQFN-16
• Minimum Operating Temperature: - 40 C
• Output Current: 40 A

18
33981
FUNCTIONAL DEVICE OPERATION
PROTECTION AND DIAGNOSTIC FEATURES
MCU
V
DD
Figure 11. Reverse Battery Protection
No current
10.0 k
V
V
PWR
PWR
GND
33981
OUT
Diode
M
GROUND (GND) DISCONNECT PROTECTION
ground, the device protects itself and safely turns OFF the
output regardless of the output state at the time of
disconnection. A 10 k resistor needs to be added between
the EN pin and the rest of the circuitry in order to ensure the
device turns off in case of ground disconnect and to prevent
exceeding this pin’s maximum ratings.
FAULT REPORTING
driving the FS pin to logic [0]:
temperature fault condition is removed. The two other faults
are latched.
If the DC motor module ground is disconnected from load
This 33981 indicates the faults below as they occur by
• Over-temperature fault
• Over-current fault on OUT
• Overload fault on the external low side MOSFET
The FS pin will return to logic [1] when the over
Analog Integrated Circuit Device Data
Freescale Semiconductor