MIC5011
Absolute Maximum Ratings (Note 1, 2)
Supply Voltage (V + ), Pin 1 –0.5V to 36V
Input Voltage, Pin 2 –10V to V +
Source Voltage, Pin 3 –10V to V +
Current into Pin 3 50mA
Gate Voltage, Pin 5 –1V to 50V
Junction Temperature 150°C
Pin Description (Refer to Typical Applications )
Micrel, Inc.
Operating Ratings (Notes 1, 2)
Power Dissipation 1.25W
θ JA (Plastic DIP) 100°C/W
θ JA (SOIC) 170°C/W
Ambient Temperature: B version –40°C to +85°C
Storage Temperature –65°C to +150°C
Lead Temperature 260°C
(Soldering, 10 seconds)
Supply Voltage (V + ), Pin 1 4.75V to 32V high side
4.75V to 15V low side
Gnd
Gate
Pin Number
1
2
3
4
5
6, 7, 8
Pin Con?guration
Pin Name
V +
Input
Source
Ground
Gate
C2, Com, C1
Pin Function
Supply; must be decoupled to isolate from large transients caused by the
power FET drain. 10μF is recommended close to pins 1 and 4.
Turns on power MOSFET when taken above threshold (3.5V typical). Re-
quires <1 μA to switch.
Connects to source lead of power FET and is the return for the gate clamp
zener. Can safely swing to –10V when turning off inductive loads.
Drives and clamps the gate of the power FET. Will be clamped to approxi-
mately –0.7V by an internal diode when turning off inductive loads.
Optional 1nF capacitors reduce gate turn-on time; C2 has dominant effect.
MIC5011
1
V+ C1 8
2
Input Com 7
3
Source C2 6
4
5
MIC5011
2
July 2005
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