Operating Temperature Range ........................... -40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range ............................ -65°C to +150°C
Soldering Temperature (reflow) ...................................... +260°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.
Note 1:
Survive-to-burst pulse up to 100V, with 2Ω series resistance and hot plugs recur. Above the input clamp voltage, input must
be a surge in nature with limited energy.
Note 2:
Limited by the PCB thermal design.
Package Thermal Characteristics
(Note 3)
WLP
Junction-to-Ambient Thermal Resistance (θ
JA
) .....49.38°C/W
Note 3:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to
www.maximintegrated.com/thermal-tutorial.
Electrical Characteristics
PARAMETER
Input Startup-Voltage Threshold
Input Sustaining Voltage
Input Valid-Voltage Threshold
Input Clamp Voltage
Input Supply Current
Output Startup-Voltage
Threshold
Output Sustaining Voltage
Output Supply Current
Output Shutdown Current
Input Leakage Voltage
(V
INA,INB
= 3V to 28V, V
OUT
= 3V to 14V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
INA,INB
= 5V,
T
A
= +25°C) (Notes 4, 5)
SYMBOL
V
IN_ST
V
IN_SU
V
IN_VAL
V
IN_CLAMP
I
INA,INB
V
OUTST
V
OUTSU
I
OUT
I
SHDN
I
INA,INB
= 0A
V
OVLOA,OVLOB
= 0V, V
OUT
= 5V,
I
INA,INB
= 0A, V
OTG_ENA,OTG_ENB
= 1.8V
V
OVLOA,OVLOB
= 3V, V
OUT
= 5V,
V
INA,INB
= 0V, V
OTG_ENA,OTG_ENB
= 0V
V
OUT
= 14V, INA, INB unconnected,
V
OTG_ENA,OTG_ENB
= 0V
V
INA,INB
= V
OUT
= 5V, INA, INB discharge
current after an OTG_ENA, OTG_ENB
transition from high to low
I
INA,INB
= 10mA, T
A
= +25°C
V
OVLOA,OVLOB
= 0V, V
INA,INB
= 5V,
INAOK, INBOK
is unconnected,
I
OUT
= 0A (Note 6)
I
OUT
= 0A
3.9
CONDITIONS
MIN
TYP
2.65
1.95
4.1
34
230
2.65
1.95
275
6.5
0.001
360
3.2
2.35
420
14
0.1
MAX
3.2
2.35
4.3
UNITS
V
V
V
V
µA
V
V
µA
µA
V
Input Discharge Current
130
200
mA
www.maximintegrated.com
Maxim Integrated
│
3
MAX14727/MAX14728/
MAX14731
Electrical Characteristics (continued)
Dual-Input, Bidirectional Overvoltage
Protector with Automatic Path Control
(V
INA,INB
= 3V to 28V, V
OUT
= 3V to 14V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
INA,INB
= 5V,
T
A
= +25°C) (Notes 4, 5)
PARAMETER
OVP (INA,INB TO OUT)
On-Resistance (INA to OUT)
On-Resistance (INB to OUT)
R
ONA
R
ONB
V
INA
= 5V, I
OUT
= 100mA, T
A
= +25°C
V
INB
= 5V, I
OUT
= 100mA, T
A
= +25°C
MAX14727
Internal Overvoltage-Trip Level
V
IN_OVLO
MAX14728
MAX14731
OVLOA, OVLOB Set Threshold
Adjustable OVLOA, OVLOB
Threshold Range
External OVLOA,OVLOB Select
Threshold
Active OUT Discharge Current
V
OVLO_TH
V
OVLO_EXT
V
OVLO_SEL
I
OUT_DIS
V
OUT
= V
INA,INB
= 5V, OUT discharge
current during a transition between
channel A and B when PCON = 0
V
IN
rising
V
IN
falling
V
IN
rising
V
IN
falling
V
IN
rising
V
IN
falling
13.5
13.0
9.85
9.5
5.83
5.6
1.2
4
0.2
0.25
1.24
14
0.3
V
V
V
5.92
6.01
10
10.15
V
68
68
13.75
115
115
14.0
mΩ
mΩ
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
130
mA
DIGITAL SIGNALS (INAOK,
INBOK,
OTG_ENA, OTG_ENB, PCON,
EN)
INAOK, INBOK
Output Low
Voltage
INAOK, INBOK
Leakage
Current
OTG_ENA, OTG_ENB, PCON,
EN
Input Logic-High
OTG_ENA, OTG_ENB, PCON,
EN
Input Logic-Low
OTG_ENA, OTG_ENB, PCON,
EN
Input Leakage Current
TIMING CHARACTERISTICS
INA, INB Debounce Time
t
DEB
t
SS
t
BBM
V
INA,INB
= 5V to charge pump on (10% of
V
INA,INB
), R
LOAD
= 100Ω, C
LOAD
= 10µF
V
INA,INB
= 5V,
INAOK, INBOK
assert to
V
OUT
= 90% of V
INA,INB
,
C
LOAD
= 1000µF
V
INB
= 5V, V
INA
= 0V to 5V or 5V to 0V,
C
LOAD
= 10µF
17
ms
V
IH
V
IL
I
IN
0V ≤ V
IN
≤ V
IL
or V
IH
≤ V
IN
≤ 5.5V
-1
V
OL
V
I/O
= 3.3V, I
SINK
= 1mA
V
I/O
= 3.3V,
INAOK, INBOK
deasserted
1.6
0.4
+1
0.4
1
V
µA
V
V
µA
INA, INB Soft-Start Time
INA, INB Break-Before-Make
Time
5
ms
8
ms
www.maximintegrated.com
Maxim Integrated
│
4
MAX14727/MAX14728/
MAX14731
Electrical Characteristics (continued)
Dual-Input, Bidirectional Overvoltage
Protector with Automatic Path Control
(V
INA,INB
= 3V to 28V, V
OUT
= 3V to 14V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
INA,INB
= 5V,
T
A
= +25°C) (Notes 4, 5)
PARAMETER
OUT Discharge Pulse Duration
INA, INB OVP Turn-Off
Response Time
OTG Turn-On Time
SYMBOL
t
OUT_DIS
t
OFF
t
OTG_ON
From V
INA,INB
> V
OVLOA,OVLOB
to
V
OUT
= 80% of V
INA,INB
, R
LOAD
= 100Ω
Time from OTG_ENA, OTG_ENB high
to V
INA,INB
= 80% of V
OUT
, V
OUT
= 5V,
C
INA,INB
= 10µF
V
INA,INB
= V
OUT
= 5V, current pulse
duration after an OTG_ENA, OTG_ENB
transition from high to low
T
SHDN
T
HYST
INA, INB
INA, INB
INA, INB
CONDITIONS
MIN
7.2
TYP
8
100
MAX
8.8
UNITS
ms
ns
30
µs
INA, INB Discharge Pulse
Duration
THERMAL PROTECTION
Thermal Shutdown
Thermal Hysteresis
ESD PROTECTION
Human Body Model
IEC 61000-4-2 Contact
Discharge
IEC 61000-4-2 Air Gap
Discharge
16
ms
150
20
±15
±8
±15
°C
°C
kV
kV
kV
Note 4:
All devices are 100% production tested at T
A
= +25°C. Limits over the operating temperature range are guaranteed by
design and not production tested.
Note 5:
The input is considered not present when it is lower than a rough threshold of T
P
= 1.5V (typ). When the B path is active
and the INA > TP is connected, the device goes to the A path (since it has the priority), but the INA has to be higher than
the startup voltage to turn on the switch.
Note 6:
When both inputs are connected, supply current is drawn from the highest one.
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
