LM5060_15 Datasheet, PDF (1/39 Pages) Texas Instruments – High-Side Protection Controller

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LM5060
SNVS628G – OCTOBER 2009 – REVISED JANUARY 2016
LM5060 High-Side Protection Controller with Low Quiescent Current
1 Features
•1 Available in Automotive Grade / AEC Q-100
• Wide Operating Input Voltage Range:
5.5 V to 65 V
• Less than 15-µA Quiescent Current in Disabled
Mode
• Controlled Output Rise Time for Safe Connection
of Capacitive Loads
• Charge Pump Gate Driver for External N-Channel
MOSFET
• Adjustable Undervoltage Lockout (UVLO) with
Hysteresis
• UVLO Serves as Second Enable Input for
Systems Requiring Safety Redundancy
• Programmable Fault Detection Delay Time
• MOSFET Latched off After Load Fault is Detected
• Active Low Open Drain POWER GOOD (nPGD)
Output
• Adjustable Input Overvoltage Protection (OVP)
• Immediate Restart After Overvoltage Shutdown
• 10-Lead VSSOP
2 Applications
• Automotive Body Electronics
• Industrial Power Distribution and Control
3 Description
The LM5060 high-side protection controller provides
intelligent control of a high-side N-channel MOSFET
during normal on/off transitions and fault conditions.
In-rush current is controlled by the nearly constant
rise time of the output voltage. A POWER GOOD
output indicates when the output voltage reaches the
input voltage and the MOSFET is fully on. Input
UVLO (with hysteresis) is provided as well as
programmable input OVP. An enable input provides
remote on or off control. The programmable UVLO
input can be used as second enable input for safety
redundancy. A single capacitor programs the initial
start-up V_GS fault detection delay time, the transition
V_DS fault detection delay time, and the continuous
over-current V_DS fault detection delay time. When a
detected fault condition persists longer than the
allowed fault delay time, the MOSFET is latched off
until either the enable input or the UVLO input is
toggled low and then high.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LM5060
VSSOP (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Circuit
V_IN
V_OUT
STATUS
EN
GND
High = Fault, Low= OK
High = On, Low= Off
SENSE GATE
OUT
VIN
LM5060
UVLO
OVP
nPGD
EN
TIMER
GND
GND
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.