MIC5013 Micrel Semiconductor, MIC5013 Datasheet - Page 2

• Manufacturer Part Number: MIC5013
• Description: Protected High- or Low-Side MOSFET Driver
• Manufacturer: Micrel Semiconductor

MIC5013
Absolute Maximum Ratings
Input Voltage, Pin 1
Threshold Voltage, Pin 2
Sense Voltage, Pin 3
Source Voltage, Pin 4
Current into Pin 4
Gate Voltage, Pin 6
Supply Voltage (V
Fault Output Current, Pin 8
Junction Temperature
Pin Description
Pin Configuration
MIC5013
Pin Number
1
2
3
4
5
6
7
8
+
), Pin 7
(Refer to Figures 1 and 2)
Pin Name
Threshold
Ground
Source
Sense
Input
Gate
Fault
V
+
(Note 1, 2)
–1mA to +1mA
–0.5V to 36V
–0.5 to +5V
–1V to 50V
–10V to V
–10V to V
–10 to V
Pin Function
Resets current sense latch and turns on power MOSFET when taken above
threshold (3.5V typical). Pin 1 requires <1 A to switch.
Sets current sense trip voltage according to:
where R
trip voltage at turn-on to 2V. Use C
constant.
The sense pin causes the current sense to trip when V
V
a 3 lead FET or a resistor R
Reference for the current sense voltage on pin 3 and return for the gate
clamp zener. Connect to the load side of current shunt or kelvin lead of
current sensing FET. Pins 3 and 4 can safely swing to –10V when turning
off inductive loads.
Drives and clamps the gate of the power FET. Pin 6 will be clamped to
approximately –0.7V by an internal diode when turning off inductive loads.
Supply pin; must be decoupled to isolate from large transients caused by
the power FET drain. 10 F is recommended close to pins 7 and 5.
Outputs status of protection circuit when pin 1 is high. Fault low indicates
normal operation; fault high indicates current sense tripped.
150 C
50mA
SOURCE
1
2
3
4
Input
Thresh
Sense
Source
+
+
+
MIC5013
TH
. Pin 3 is used in conjunction with a current shunt in the source of
2
to ground is 3.3k to 20k . Adding capacitor C
Fault
Gate
Operating Ratings
Power Dissipation
Ambient Temperature: B version
Storage Temperature
Lead Temperature
(Soldering, 10 seconds)
Supply Voltage (V
Gnd
V+
JA
JA
(Plastic DIP)
(SOIC)
8
7
6
5
S
in the sense lead of a current sensing FET.
+
), Pin 7
V
TH
TRIP
=10 F for a 10ms turn-on time
=
(Notes 1, 2)
R
TH
2200
+1000
7V to 32V high side
SENSE
7V to 15V low side
–65 C to +150 C
TH
–40 C to +85 C
increases the
is V
TRIP
July 2000
100 C/W
170 C/W
1.25W
260 C
above
Micrel