LM5060Q1MM/NOPB National Semiconductor, LM5060Q1MM/NOPB Datasheet

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LM5060Q1MM/NOPB

Manufacturer Part Number
LM5060Q1MM/NOPB
Description
IC CTRL HIGH SIDE AUTO 10MSOP
Manufacturer
National Semiconductor
Datasheet

Specifications of LM5060Q1MM/NOPB

Configuration
High-Side
Voltage - Supply
5 V ~ 65 V
Mounting Type
Surface Mount
Package / Case
10-MSOP, Micro10™, 10-uMAX, 10-uSOP
Applications
Automotive Body Electronics, Industrial Power Distribution And Control
Input Voltage
65V
Supply Voltage Range
5.5V To 65V
Digital Ic Case Style
MSOP
No. Of Pins
10
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Operating Temperature
-
Number Of Outputs
-
Input Type
-
Delay Time
-
Current - Peak
-
Number Of Configurations
-
High Side Voltage - Max (bootstrap)
-
Other names
LM5060Q1MMTR

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© 2010 National Semiconductor Corporation
High-Side Protection Controller with Low Quiescent
Current
General Description
The LM5060 high-side protection controller provides intelli-
gent control of a high-side N-Channel MOSFET during normal
on/off transitions and fault conditions. In-rush current is con-
trolled by the nearly constant rise time of the output voltage.
A power good output indicates when the output voltage reach-
es the input voltage and the MOSFET is fully on. Input Under-
Voltage Lock-Out, with hysteresis, is provided as well as
programmable input Over-Voltage Protection. An enable in-
put provides remote On / Off control. The programmable
Under-Voltage Lock-Out input can be used as second enable
input for safety redundancy. A single capacitor programs the
initial start-up V
V
rent V
condition persists longer than the allowed fault delay time, the
MOSFET is latched off until either the Enable input or the Un-
der-Voltage Lock-Out input is toggled low and then high.
Typical Application
DS
fault detection delay time, and the continuous Over-Cur-
DS
fault detection delay time. When a detected fault
GS
fault detection delay time, the transition
301042
LM5060
Features
Applications
Package
Available in Automotive grade / AEC Q-100
Wide operating input voltage range: +5.5V to +65V
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 Under-Voltage Lock-Out (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 Over-Voltage Protection (OVP)
Immediate restart after Over-Voltage shutdown
Automotive Body Electronics
Industrial Power Distribution and Control
10-Lead MINI-SOIC
December 10, 2010
30104201
www.national.com

Related parts for LM5060Q1MM/NOPB

LM5060Q1MM/NOPB Summary of contents

Page 1

... MOSFET is latched off until either the Enable input or the Un- der-Voltage Lock-Out input is toggled low and then high. Typical Application © 2010 National Semiconductor Corporation LM5060 Features ■ Available in Automotive grade / AEC Q-100 ■ ...

Page 2

Connection Diagram Ordering Information Order Number Grade LM5060MM Standard LM5060MMX Standard LM5060Q1MM Automotive LM5060Q1MMX Automotive Automotive Grade (Q) product incorporates enhanced manufacturing and support processes for the automotive market, including defect detection methodologies. Reliability qualification is compliant with the requirements ...

Page 3

Pin Name Description No. 8 nPGD Fault Status 9 OUT Output VoltageSense 10 GATE Gate drive output Applications Information An open drain output. When the external MOSFET V voltage exceeds the SENSE pin voltage, the nPGD indicator is active (low ...

Page 4

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications GND (Note 4, Note 5) IN SENSE, OUT to GND (Note 6) GATE to GND (Note 4, Note 6) EN, UVLO to GND (Note 5) nPGD, OVP to GND TIMER to GND ...

Page 5

... Note 2: The Human Body Model (HBM 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin. Applicable standard is JESD-22–A114–C. Note 3: Soldering process must comply with National Semiconductor's Reflow Temperature Profile specifications. Reflow temperature profiles are different for lead-free and non-lead-free packages. Refer to the Packaging Data Book available from National Semiconductor www.national.com/analog/packaging Note 4: The GATE pin voltage is typically 12V above the VIN pin when the LM5060 is enabled ...

Page 6

Typical Performance Characteristics VIN Pin Current vs. VIN Pin Voltage OUT Pin Current (I vs. VIN Voltage SENSE Current (I vs VIN Voltage www.national.com 30104203 ) OUT-EN 30104205 ) SENSE 30104207 VIN Voltage GATE vs. Input Voltage ...

Page 7

GATE Pull-Down Current Off (I GATE-OFF vs. GATE Voltage 30104209 UVLO Threshold Voltage (UVLO ) TH vs. Temperature 30104259 UVLO, EN Current vs. Temperature 30104212 ) EN Threshold Voltage (EN vs. Temperature GATE Pull-Down Current Fault (I vs. GATE Voltage ...

Page 8

V Comparator Threshold Voltage (V GS vs. Temperature GATE Current (I vs. Temperature Gate Pull-Down Current - Fault (I vs. Temperature www.national.com ) V GATE-TH DS 30104214 ) GATE 30104216 ) GATE-FLT 30104218 8 Comparator Offset Voltage (V ) OFFSET ...

Page 9

Low Voltage (PGD ) VOL vs. Temperature 30104220 9 www.national.com ...

Page 10

Block Diagram www.national.com 10 30104221 ...

Page 11

Functional Description The LM5060 is designed to drive an external high-side N- channel MOSFET. Over-Current protection is implemented by sensing the voltage drop across the MOSFET. When an adjustable voltage drop threshold is exceeded, and an ad- justable time period ...

Page 12

FIGURE 2. Voltages During Normal Start Up Sequence TABLE 1. Overview of Operating Conditions Input Conditions OVP VIN EN UVLO SENSE-OUT (typ) (typ >5.10V >5.10V NA SENSE>OUT H L <2V >5.10V SENSE<OUT SENSE>OUT ...

Page 13

EN pin, the UVLO pin, or the VIN pin is toggled low and then high. The block diagram of the LM5060 shows the details of the TIMER pin. There are three ...

Page 14

V FAULT CONDITION DS The LM5060 includes a V Fault Comparator that senses the DS voltage difference between the SENSE pin and the OUT pin. If the voltage at the OUT pin falls lower than the voltage at the SENSE ...

Page 15

UNDER-VOLTAGE LOCK-OUT (UVLO) The Under-Voltage Lock-Out function will turn off the external N-Channel MOSFET with a 2.2 mA (typical) current sink at the GATE pin. Figure 6 shows the threshold levels of the UV- LO input. A resistor divider as ...

Page 16

Application Information V FAULT DETECTION and SELECTING SENSE PIN DS RESISTOR R S The LM5060 monitors the V voltage of the external N- DS Channel MOSFET. The drain to source voltage threshold (V ), which is set with the resistor ...

Page 17

V Where I TMRH TMRH V is typically 300 mV. If the C TMRL TIMER (0.068 μF) the V transition fault delay time would typically DS be: Fault Delay = (((2V-0.3V) x 0.068 μ ...

Page 18

Calculate R2 with the following formula the minimum and V is the maximum input volt- INMIN INMAX age of the design specification. All other variables can be found in the Electrical Characteristics table of this document. To ...

Page 19

INPUT BYPASS CAPACITOR Some input capacitance from the VIN pin to the GND pin may be necessary to filter noise and voltage spikes from the V rail. If the current through Q1 in Figure 1 is very large a sudden ...

Page 20

Figure 14 Example Circuit Specification Operating Voltage Range Current max OVP setting UVLO setting FIGURE 14. Application with Reverse Polarity Protection with Diodes for OUT Pin Protection REVERSE POLARITY PROTECTION WITH A RESISTOR An alternative to using external diodes to ...

Page 21

In this case, V also has to be limited to a negative voltage IN so that reverse current through the SENSE pin does not ex- ceed 25 mA. FIGURE 16. Current Limiting Resistor in the OUT Path for OUT > ...

Page 22

N-Channel MOSFET. The the drain to source voltage threshold (V below calculates a proper R resistor value for a desired S V taking into account the voltage drop across the R DSTH sistor the ...

Page 23

Physical Dimensions inches (millimeters) unless otherwise noted 10-Lead MSOP Package NS Package Number MUB10A 23 www.national.com ...

Page 24

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