MIC5016_02 Datasheet, PDF (1/12 Pages) Micrel Semiconductor – Low-Cost Dual High- or Low-Side MOSFET Driver

MIC5016/5017
Micrel
MIC5016/5017
Low-Cost Dual High- or Low-Side MOSFET Driver
Final Information
General Description
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
MOSFETs from a 2.75V supply or standard MOSFETs from
a 5V supply. Gate-to-source output voltages are internally
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-
ment in many MIC5012 applications.
The MIC5016/7 is available in plastic 14-pin DIP and 16-pin
SOIC pacakges.
Typical Application
+3V to +4V
10µF
ON
OFF
ON
OFF
MIC5016BN
V+ A Gate A
V+ B Source A
In A Gate B
In B Source B
Gnd
IRLZ24
Back
Light
IRLZ24
Features
• 2.75V to 30V operation
• 100µA maximum supply current (5V supply)
• 15µA 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
• 1µA control input pull-off
• Inverting and noninverting versions
Applications
• Automotive electrical load control
• Battery-powered computer power management
• Lamp control
• Heater control
• Motor control
• Power bus switching
Ordering Information
Part Number
Noninverting
MIC5016BWM
MIC5016BN
Inverting
MIC5017BWM
MIC5017BN
Temperature Range
Package
–40°C to +85°C
–40°C to +85°C
16-pin Wide SOIC
14-pin Plastic DIP
–40°C to +85°C
–40°C to +85°C
16-pin Wide SOIC
14-pin Plastic DIP
Figure 1: 3-Volt “Sleep-Mode” Switches
with Logic-Level MOSFETs
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 [phone] • fax + 1 [phone] • http://www.micrel.com
October 1998
1
MIC5016/5017