19-3693; Rev 4; 9/08
Ultra-Small, Overvoltage Protection/
Detection Circuits
General Description
The MAX16010–MAX16014 is a family of ultra-small, low-
power, overvoltage protection circuits for high-voltage,
high-transient systems such as those found in automotive,
telecom, and industrial applications. These devices oper-
ate over a wide 5.5V to 72V supply voltage range, making
them also suitable for other applications such as battery
stacks, notebook computers, and servers.
The MAX16010 and MAX16011 offer two independent
comparators for monitoring both undervoltage and
overvoltage conditions. These comparators offer open-
drain outputs capable of handling voltages up to 72V.
The MAX16010 features complementary enable inputs
(EN/EN), while the MAX16011 features an active-high
enable input and a selectable active-high/low OUTB
output.
The MAX16012 offers a single comparator and an inde-
pendent reference output. The reference output can be
directly connected to either the inverting or noninverting
input to select the comparator output logic.
The MAX16013 and MAX16014 are overvoltage protec-
tion circuits that are capable of driving two p-channel
MOSFETs to prevent reverse-battery and overvoltage
conditions. One MOSFET (P1) eliminates the need for
external diodes, thus minimizing the input voltage drop.
The second MOSFET (P2) isolates the load or regulates
the output voltage during an overvoltage condition. The
MAX16014 keeps the MOSFET (P2) latched off until the
input power is cycled.
The MAX16010 and MAX16011 are available in small
8-pin TDFN packages, while the MAX16012/MAX16013/
MAX16014 are available in small 6-pin TDFN packages.
These devices are fully specified from -40°C to +125°C.
o
Open-Drain Outputs Up to 72V
(MAX16010/MAX16011/MAX16012)
o
Fast 2µs (max) Propagation Delay
o
Internal Undervoltage Lockout
o
p-Channel MOSFET Latches Off After an
Overvoltage Condition (MAX16014)
o
Adjustable Overvoltage Threshold
o
-40°C to +125°C Operating Temperature Range
o
Small 3mm x 3mm TDFN Package
Features
o
Wide 5.5V to 72V Supply Voltage Range
MAX16010–MAX16014
Ordering Information
PART*
MAX16010TA_-T
MAX16011TA_-T
MAX16012TT-T
MAX16013TT-T
MAX16014TT-T
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
8 TDFN-EP**
8 TDFN-EP**
6 TDFN-EP**
6 TDFN-EP**
6 TDFN-EP**
Note:
Replace the “_” with “A” for 0.5% hysteresis, “B” for 5%
hysteresis, and “C” for 7.5% hysteresis.
*Replace
-T with +T for lead-free packages.
**EP
= Exposed pad.
Typical Operating Circuit
P1
P2
Applications
Automotive
Industrial
48V Telecom/Server/Networking
FireWire
®
Notebook Computers
Multicell Battery-Stack Powered Equipment
V
BATT
2MΩ*
GATE1
R1
V
CC
GATE2
FireWire is a registered trademark of Apple, Inc.
R2
SET
MAX16013
MAX16014
GND
Pin Configurations appear at end of data sheet.
*OPTIONAL
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Ultra-Small, Overvoltage Protection/
Detection Circuits
MAX16010–MAX16014
ABSOLUTE MAXIMUM RATINGS
(All pins referenced to GND, unless otherwise noted.)
V
CC
.........................................................................-0.3V to +80V
EN,
EN,
LOGIC...........................................-0.3V to (V
CC
+ 0.3V)
INA+, INB-, IN+, IN-, REF, SET ..............................-0.3V to +12V
OUTA, OUTB, OUT.................................................-0.3V to +80V
GATE1, GATE2 to V
CC
...........................................-12V to +0.3V
GATE1, GATE2...........................................-0.3V to (V
CC
+ 0.3V)
Current Sink/Source (all pins) .............................................50mA
Continuous Power Dissipation (T
A
= +70°C)
6-Pin TDFN (derate 18.2mW/°C above +70°C) .........1455mW
8-Pin TDFN (derate 18.2mW/°C above +70°C) .........1455mW
Operating Temperature Range .........................-40°C to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
CC
= 14V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
Supply Voltage Range
Input Supply Current
SYMBOL
V
CC
I
CC
No load
V
CC
= 12V
V
CC
= 48V
CONDITIONS
MIN
5.5
20
25
TYP
MAX
72.0
30
40
UNITS
V
µA
V
CC
Undervoltage Lockout
V
UVLO
V
CC
rising, part enabled, V
INA+
= 2V, OUTA
deasserted (MAX16010/MAX16011),
V
IN
= 2V, V
OUT
deasserted (MAX16012),
V
SET
= 0V, GATE2 = V
CLMP
(MAX16013/
MAX16014)
0.5% hysteresis, MAX16010/MAX16011
4.75
5
5.25
V
V
TH+
INA+/INB-/SET Threshold Voltage
5.0% hysteresis, MAX16010/MAX16011/
MAX16013/MAX16014
7.5% hysteresis MAX16010/MAX16011
MAX16010TAA/MAX16011TAA
Threshold-Voltage Hysteresis
MAX16010TAB/MAX16011TAB/
MAX16013/MAX16014
MAX16010TAC/MAX16011TAC
SET/IN_ Input Current
IN_ Operating Voltage Range
Startup Response Time
IN_ to OUT/SET to GATE2
Propagation Delay
OUT_ Output-Voltage Low
OUT_ Leakage Current
t
START
t
PROP
V
CC
rising from 0 to 5.5V
IN_/SET rising from (V
TH
- 100mV) to
(V
TH
+ 100mV) or falling from (V
TH
+
100mV) to (V
TH
- 100mV) (no load)
V
CC
≥
5.5V, I
SINK
= 3.2mA
V
CC
≥
2.8V, I
SINK
= 100µA
OUT_ = 72V
SET/IN_ = 2V
1.215
1.21
1.15
1.12
1.245
1.223
1.18
1.15
0.5
5.0
7.5
1.265
1.26
1.21
1.18
V
V
TH-
%
-100
0
100
+100
4
nA
V
µs
2
0.4
0.4
500
µs
V
V
nA
V
OL
I
LEAK
2
_______________________________________________________________________________________
Ultra-Small, Overvoltage Protection/
Detection Circuits
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 14V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
EN/EN, LOGIC Input Voltage
EN/EN, LOGIC Input Current
EN/EN, LOGIC Pulse Width
V
CC
to GATE_ Output Low
Voltage
V
CC
to GATE_ Clamp Voltage
MAX16012
Reference Output Voltage
Reference Short-Circuit Current
Reference Load Regulation
Input Offset Voltage
Input Offset Current
Input Hysteresis
Common-Mode Voltage Range
Common-Mode Rejection Ratio
Comparator Power-Supply
Rejection Ratio
CMVR
CMRR
PSRR
DC
MAX16012, DC
0
70
70
V
REF
I
SHORT
No load
REF = GND
Sourcing, 0
≤
I
REF
≤
1µA
Sinking, -1µA
≤
I
REF
≤
0
V
CM
= 0 to 2V
-12.5
3
8
2.0
1.275
1.3
100
0.1
0.1
+12.5
1.320
V
µA
mV/µA
mV
nA
mV
V
dB
dB
I
GATE
_
SINK
= 75µA, I
GATE
_
SOURCE
= 1µA,
V
CC
= 14V
V
CC
= 24V
10
7
12
11
18
SYMBOL
V
IL
V
IH
1.4
1
2
CONDITIONS
MIN
TYP
MAX
0.4
UNITS
V
µA
µs
V
V
MAX16010–MAX16014
Note 1:
100% production tested at T
A
= +25°C and T
A
= +125°C. Specifications at T
A
= -40°C are guaranteed by design.
Typical Operating Characteristics
(V
IN
= 14V, T
A
= +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX16010 toc01
SUPPLY CURRENT
vs. TEMPERATURE
MAX16010 toc02
GATE VOLTAGE
vs. SUPPLY VOLTAGE
MAX16013/MAX16014
SET = GND, EN = V
CC
MAX16010 toc03
40
35
SUPPLY CURRENT (µA)
30
25
20
15
10
5
15
25
35
45
55
65
MAX16012
IN+ = IN- = GND
MAX16010/MAX16011
INA+ = INB- = GND
OUTPUTS ENABLED
MAX16013/MAX16014
SET = GND, EN = V
CC
26.50
26.45
26.40
SUPPLY CURRENT (µA)
26.35
26.30
26.25
26.20
26.15
26.10
26.05
26.00
MAX16013/MAX16014
SET = GND, EN = V
CC
60
50
GATE VOLTAGE (V)
40
30
20
10
0
V
CC
- V
GATE
V
GATE
75
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
5
15
25
35
45
55
65
75
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________
3
Ultra-Small, Overvoltage Protection/
Detection Circuits
MAX16010–MAX16014
Typical Operating Characteristics (continued)
(V
IN
= 14V, T
A
= +25°C, unless otherwise noted.)
UVLO THRESHOLD
vs. TEMPERATURE
MAX16010 toc04
INA+/INB-/SET THRESHOLD
vs. TEMPERATURE
MAX16010 toc05
GATE VOLTAGE
vs. TEMPERATURE
9.9
9.8
(V
CC
- V
GATE
) (V)
9.7
9.6
9.5
9.4
9.3
9.2
9.1
9.0
MAX16013/MAX16014
SET = GND, EN = V
CC
MAX16010 toc06
5.5
5.4
5.3
UVLO THRESHOLD (V)
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
FALLING
RISING
INA+/INB-/SET = GND
EN = V
CC
1.30
1.29
INA+/INB-/SET THRESHOLD (V)
1.28
1.27
1.26
1.25
1.24
1.23
1.22
1.21
1.20
INA+/INB-/SET RISING
EN = V
CC
10.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
STARTUP WAVEFORM
(R
OUT
= 100Ω, C
IN
= 10µF, C
OUT
= 10nF)
MAX16010 toc07
STARTUP WAVEFORM
(R
OUT
= 100Ω, C
IN
= 10µF, C
OUT
= 10nF)
MAX16010 toc08
V
CC
10V/div
V
CC
1V/div
V
GATE
5V/div
V
OUT
10V/div
V
EN
= 0 TO 2V
200µs/div
20µs/div
V
GATE
10V/div
V
OUT
10V/div
OVERVOLTAGE SWITCH FAULT
(R
OUT
= 100Ω, C
IN
= 80µF, C
OUT
= 10nF)
MAX16010 toc09
OVERVOLTAGE LIMIT
(R
OUT
= 100Ω, C
IN
= 80µF, C
OUT
= 10nF)
MAX16010 toc10
V
CC
20V/div
V
CC
20V/div
V
GATE
20V/div
V
GATE
20V/div
V
OUT
20V/div
V
IN
= 12V TO 40V, TRIP THRESHOLD = 28V
1ms/div
V
OUT
20V/div
V
IN
= 12V TO 40V
TRIP THRESHOLD = 28V
1ms/div
4
_______________________________________________________________________________________
Ultra-Small, Overvoltage Protection/
Detection Circuits
Pin Description
PIN
MAX16010
MAX16011
MAX16012
MAX16013
MAX16014
NAME
FUNCTION
MAX16010–MAX16014
1
2
3
1
2
—
1
2
—
1
2
—
V
CC
GND
EN
Positive-Supply Input Voltage. Connect V
CC
to a 5.5V to 72V supply.
Ground
Active-Low Enable Input. Drive
EN
low to turn on the voltage detectors. Drive
EN
high to force the
OUTA and OUTB outputs low.
EN
is internally pulled up to V
CC
. Connect
EN
to GND if not used.
Open-Drain Monitor B Output. Connect a pullup resistor from OUTB to V
CC
. OUTB goes low when
INB- exceeds V
TH+
and goes high when INB- drops below V
TH-
(with LOGIC connected to GND for
the MAX16011). Drive LOGIC high to reverse OUTB’s logic state. OUTB is usually used as an
overvoltage output. OUTB goes low (LOGIC = low) or high (LOGIC = high) when V
CC
drops below
the UVLO threshold voltage.
Adjustable Voltage Monitor Threshold Input
Active-High ENABLE Input. For the MAX16010/MAX16011, drive EN high to turn on the voltage
detectors. Drive EN low to force OUTA low and OUTB low (LOGIC = low) or high (LOGIC = high). For
the MAX16013/MAX16014, drive EN high to enhance the p-channel MOSFET (P2), and drive EN low
to turn off the MOSFET. EN is internally pulled down to GND. Connect EN to V
CC
if not used.
Open-Drain Monitor A Output. Connect a pullup resistor from OUTA to V
CC
. OUTA goes low when
INA+ drops below V
TH-
and goes high when INA+ exceeds V
TH+
. OUTA is usually used as an
undervoltage output. OUTA also goes low when V
CC
drops below the UVLO threshold voltage.
Adjustable Voltage Monitor Threshold Input
OUTB Logic-Select Input. Connect LOGIC to GND or V
CC
to configure the OUTB logic. See the
MAX16011 output logic table.
Open-Drain Comparator Output. Connect a pullup resistor from OUT to V
CC
. OUT goes low when
IN+ drops below IN-. OUT goes high when IN+ exceeds IN-.
Inverting Comparator Input
Internal 1.30V Reference Output. Connect REF to IN+ for active-low output. Connect REF to IN- for
active-high output. REF can source and sink up to 1µA. Leave REF floating if not used. REF output is
stable with capacitive loads from 0 to 50pF.
Noninverting Comparator Input
4
4
—
—
OUTB
5
5
—
—
INB-
6
6
—
5
EN
7
8
—
—
—
—
—
7
8
3
—
—
—
—
—
—
—
3
4
5
6
—
—
—
—
—
—
—
OUTA
INA+
LOGIC
OUT
IN-
REF
IN+
—
—
—
3
Gate-Driver Output. Connect GATE2 to the gate of an external p-channel MOSFET pass switch.
GATE2 is driven low to the higher of V
CC
- 10V or GND during normal operations and quickly shorted
GATE2 to V
CC
during an overvoltage condition (SET above the internal threshold). GATE2 is shorted to V
CC
when the supply voltage goes below the UVLO threshold voltage. GATE2 is shorted to V
CC
when EN
is low.
SET
Device Overvoltage Threshold Adjustment Input. Connect SET to an external resistive divider network
to adjust the desired overvoltage disable or overvoltage limit threshold (see the
Typical Application
Circuit
and
Overvoltage Limiter
section).
Gate-Driver Output. Connect GATE1 to the gate of an external p-channel MOSFET to provide low
drop reverse voltage protection.
Exposed Pad. Connect EP to GND.
—
—
—
4
—
—
—
—
—
—
6
—
GATE1
EP
_______________________________________________________________________________________
5
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