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MIC5016/5017
General Description
Micrel
MIC5016/5017
Low-Cost Dual High- or Low-Side MOSFET Driver
Final Information
Features
MIC5016 and MIC5017 dual MOSFET drivers are designed
for gate control of N-channel, enhancement-mode, power
MOSFETs used as high-side or low-side switches. The
MIC5016/7 can sustain an on-state output indefinitely.
The MIC5016/7 operates from a 2.75V to 30V supply. In high-
side configurations, the driver can control MOSFETs that
switch loads of up to 30V. In low-side configurations, with
separate supplies, the maximum switched voltage is limited
only by the MOSFET.
The MIC5016/7 has two TTL compatible control inputs. The
MIC5016 is noninverting while the MIC5017 is inverting.
The MIC5016/7 features internal charge pumps that can
sustain gate voltages greater than the available supply
voltage. The driver is capable of turning on logic-level
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2.75V to 30V operation
100 μ A maximum supply current (5V supply)
15 μ A typical off-state current
Internal charge pump
TTL compatible input
Withstands 60V transient (load dump)
Reverse battery protected to –20V
Inductive spike protected to –20V
Overvoltage shutdown at 35V
Internal 15V gate protection
Minimum external parts
Operates in high-side or low-side configurations
1 μ A control input pull-off
Inverting and noninverting versions
MOSFETs from a 2.75V supply or standard MOSFETs from
a 5V supply. Gate-to-source output voltages are internally
Applications
limited to approximately 15V.
The MIC5016/7 is protected against automotive load dump,
reversed battery, and inductive load spikes of – 20V. The
driver ’ s overvoltage shutdown feature turns off the external
MOSFETs at approximately 35V to protect the load against
power supply excursions.
The MIC5016 is an improved pin-for-pin compatible replace-
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Automotive electrical load control
Battery-powered computer power management
Lamp control
Heater control
Motor control
Power bus switching
ment in many MIC5012 applications.
Ordering Information
The MIC5016/7 is available in plastic 14-pin DIP and 16-pin
SOIC pacakges.
Typical Application
+3V to +4V
10μF
Part Number
Noninverting
MIC5016BWM
MIC5016BN
Inverting
MIC5017BWM
MIC5017BN
Temperature Range
–40 ° C to +85 ° C
–40 ° C to +85 ° C
–40 ° C to +85 ° C
–40 ° C to +85 ° C
Package
16-pin Wide SOIC
14-pin Plastic DIP
16-pin Wide SOIC
14-pin Plastic DIP
MIC5016BN
V+ A
Gate A
IRLZ24
V+ B Source A
ON
OFF
In A
Gate B
Back
Light
ON
OFF
In B Source B
Gnd
IRLZ24
Figure 1: 3-Volt “Sleep-Mode” Switches
with Logic-Level MOSFETs
Micrel, Inc. ? 1849 Fortune Drive ? San Jose, CA 95131 ? USA ? tel + 1 (408) 944-0800 ? fax + 1 (408) 944-0970 ? http://www.micrel.com
October 1998
1
MIC5016/5017
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