MAX16914AUB/V+ Maxim Integrated Products, MAX16914AUB/V+ Datasheet - Page 9

• Manufacturer Part Number: MAX16914AUB/V+
• Description: IC CTRLR IDEAL DIODE 10UMAX
• Manufacturer: Maxim Integrated Products

Specifications of MAX16914AUB/V+

• Applications: Battery Backup, Industrial/Automotive, High Current Switch
• Fet Type: P-Channel
• Number Of Outputs: 2
• Internal Switch(s): No
• Voltage - Supply: 4.5 V ~ 19 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Delay Time - On: -
• Delay Time - Off: -
• Lead Free Status / Rohs Status: Details

Most battery-powered applications must include reverse-
voltage protection. Many times this is implemented with
a diode in series with the battery. The disadvantage in
using a diode is the forward-voltage drop of the diode,
which reduces the operating voltage available to down-
stream circuits (V
The MAX16914/MAX16915 include high-voltage GATE1
drive circuitry allowing users to replace the high-voltage
drop series diode with a low-voltage-drop MOSFET
device (as shown in the Typical Operating Circuit). The
forward-voltage drop is reduced to I
P1. With a suitably chosen MOSFET, the voltage drop
can be reduced to millivolts.
In normal operating mode, internal GATE1 output cir-
cuitry enhances P1. The constant enhancement ensures
P1 operates in a low R
junction is not overstressed during high battery-voltage
applications or transients (many MOSFET devices specify
a Q20V V
10V, GATE1 is limited to GND, reducing P1 V
In normal operation, the P1 power dissipation is very low:
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.
Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
©
Ideal Diode, Reverse-Battery, and Overvoltage Protection
2009 Maxim Integrated Products
GS
Reverse-Polarity Protection MOSFET (P1)
absolute maximum). As V
Switch/Limiter Controllers with External MOSFETs
P1 = I
LOAD
DS(ON)
LOAD
= V
BATTERY
2
x R
mode, but the gate-source
DS(ON)
- V
LOAD
DIODE
CC
x R
drops below
).
GS
DS(ON)
to V
CC
of
.
Maxim is a registered trademark of Maxim Integrated Products, Inc.
During reverse-battery conditions, GATE1 is limited to
GND and the P1 gate-source junction is reverse biased.
P1 is turned off and neither the MAX16914/MAX16915
nor the load circuitry is exposed to the reverse-battery
voltage. Care should be taken to place P1 (and its inter-
nal drain-to-source diode) in the correct orientation for
proper reverse-battery operation.
The MAX16914/MAX16915 thermal-shutdown feature
turns off both MOSFETs if the IC junction temperature
exceeds the maximum allowable thermal dissipation.
When the junction temperature exceeds T
the thermal sensor signals the shutdown logic, turning off
both GATE1 and GATE2 outputs and allowing the device
to cool. The thermal sensor turns GATE1 and GATE2 on
again after the IC’s junction temperature cools by 20NC.
For continuous operation, do not exceed the absolute
maximum junction-temperature rating of T
PROCESS: BiCMOS
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages.
PACKAGE TYPE
10 FMAX
PACKAGE CODE
Package Information
U10+2
Chip Information
Thermal Shutdown
DOCUMENT NO.
J
21-0061
J
= +150NC.
= +170NC,
9