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Linear Technology Electronic Components Datasheet

LTC4416EMS Datasheet

Low Loss Dual PowerPath Controllers

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FEATURES
Designed Specifically to Drive Large and Small QG
PFETs
Very Low Loss Replacement for Power Supply
OR’ing Diodes
Wide Operating Voltage Range: 3.6V to 36V
–40°C to 125°C Operating Temperature Range
Reverse Battery Protection
Automatic Switching Between DC Sources
Low Quiescent Current: 35µA per Channel
Load Current Sharing
MOSFET Gate Protection Clamp
Precision Input Control Comparators for Setting
Switchover Threshold Points
Open-Drain Feedback Points for Customer Specified
Hysteresis Control
Minimal External Components
Space Saving 10-Lead MSOP Package
U
APPLICATIO S
High Current PowerPath Switch
Industrial and Automotive Applications
Uninterruptible Power Supplies
Logic Controlled Power Switch
Battery Backup System
Emergency Systems with Battery Backups
, LT, LTc and LTM are registered trademarks of Linear Technology corporation.
PowerPath is a trademark of Linear Technology corporation.
All other trademarks are the property of their respective owners.
LTC4416w/wLwT.DCataS4he4et41U.c6om-1
36V, Low Loss Dual
PowerPath Controllers for
Large PFETs
DESCRIPTIO
The LTC®4416/LTC4416-1 control two sets of external
P-channel MOSFETs to create two near ideal diode functions
for power switchover circuits. This permits highly efficient
OR’ing of multiple power sources for extended battery life
and low self heating. When conducting, the voltage drop
across the MOSFET is typically 25mV. For applications with
a wall adapter or other auxiliary power source, the load is
automatically disconnected from the battery when the aux-
iliary source is connected.
The LTC4416 integrates two interconnected PowerPathTM
controllers with soft switchover control. The “soft-off”
switchover permits the users to transfer between two dis-
similar voltages without excessive voltage undershoot (or
VDROOP) in the output supply. The LTC4416/LTC4416-1 also
contain a “fast-on” feature that dramatically increases gate
drive current when the forward input voltage exceeds 25mV.
The LTC4416 “fast off” feature is engaged when the sense
voltage exceeds the input voltage by 25mV. The LTC4416-1
enables the fast off under the same conditions and when
the other external P-channel device is selected using the
enable pins.
The wide operating supply range supports operation from one
to eight Li-Ion cells in series. The low quiescent current (35µA
per channel) is independent of the load current. The gate driver
includes an internal voltage clamp for MOSFET protection.
The LTC4416/LTC4416-1 are available in low profile 10-lead
MSOP packages.
TYPICAL APPLICATIO
Automatic PowerPath Switchover
V1 = 12V (FAIL)
V1 = 13.5V (RESTORE) PRIMARY SUPPLY
V1
221k
SUP75P03_07
187k 24.9k
GND
V2
V2 = 10.8V
LTC4416
E1
V1
GND
G1
E2
VS
H2
G2
H1
V2
BACKUP SUPPLY SUP75P03_07
VS
4416 TA01
LTC4416 vs Schottky Diode
Forward Voltage Drop
8.0
cONSTANT
RON
3.6
LTc4416
cONSTANT
VOLTAGE
ScHOTTKY
DIODE
0
0.02
FORWARD VOLTAGE (V)
0.5
4416 TA01b
Under and Overvoltage Shutdown Operation
VIN
221k
75k
VTH2 WITH
HYSTERESIS
24.9k
GND
VTH1 WITH
HYSTERESIS
187k 24.3k
182k LTC4416-1
H1
G1
E1
V1
GND
VS
E2
V2
H2
G2
VOUT
TO
LOAD
4416 TA01c
UV ENABLED AT 5V, VIN RESTORED TO LOAD WHEN VIN RISES TO 5.5V
OV ENABLED AT 13.5V, VIN RESTORED TO LOAD WHEN VIN FALLS TO 12V
4416fa



Linear Technology Electronic Components Datasheet

LTC4416EMS Datasheet

Low Loss Dual PowerPath Controllers

No Preview Available !

LTC4416/LTC4416-1
ABSOLUTE AXI U RATI GS
(Note 1)
Supply Voltage (V1, V2).............................. –14V to 40V
Voltage from V1 or V2 to VS........................ –40V to 40V
Input Voltage
E1, E2..................................................... –0.3V to 40V
VS............................................................ –14V to 40V
Output Voltage
G1....... –0.3V to the Higher of V1 + 0.3V or VS + 0.3V
G2....... –0.3V to the Higher of V2 + 0.3V or VS + 0.3V
H1, H2...................................................... –0.3V to 7V
Operating Ambient Temperature Range (Note 2)
LTC4416E............................................. –40°C to 85°C
LTC4416I............................................ –40°C to 125°C
Operating Junction
Temperature Range................................ –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
www.DataSheet4U.com
UW U
PACKAGE/ORDER I FOR ATIO
H1 1
E1 2
GND 3
E2 4
H2 5
TOP VIEW
10 G1
9 V1
8 VS
7 V2
6 G2
MS PACKAGE
10-LEAD PLASTIC MSOP
TJMAX = 130°C, θJA = 120°C/W
Order part number MS part marking*
LTC4416EMS
LTC4416IMS
LTC4416EMS-1
LTC4416IMS-1
ltcfc
LTCFC
LTCPS
LTCPS
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
*The temperature grade is identified by a label on the shipping container.
ELECTRICAL CHARACTERISTICS The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. V1 = V2 = 12V, E1 = 2V, E2 = GND, GND = 0V. Current into a pin is
positive and current out of a pin is negative. All voltages are referenced to GND, unless otherwise specified.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VV1, VV2, Operating Supply Range
VVS
V1, V2 and/or VS Must be in This Range for Proper 3.6
Operation
36
V
IQFL
Quiescent Supply Current at Low Supply VV1 = 3.6V, VV2 = 3.6V. Measure Combined Current
While in Forward Regulation
at V1, V2 and VS Pins Averaged with VVS = 3.560V
and VVS = 3.6V (Note 3)
70
µA
IQFH
Quiescent Supply Current at High Supply VV1 = 36V, VV2 = 36V. Measure Combined Current
While in Forward Regulation
at V1, V2 and VS Pins Averaged with VVS = 35.960V
and VVS = 36V (Note 3)
130
µA
IQRL
Quiescent Supply Current at Low Supply VV1 = 3.6V, VV2 = 3.6V. Measure Combined Current
While in Reverse Turn-Off
at V1, V2 and VS Pins with VVS = 3.7V
70
µA
IQRH
Quiescent Supply Current at High Supply VV1 = 35.9V, VV2 = 35.9V. Measure Combined
While in Reverse Turn-Off
Current at V1, V2 and VS Pins with VVS = 36V
130
µA
IQCL
Quiescent Supply Current at Low Supply VV1 = 3.6V, VV2 = 3.6V, VV1 – VVS = 0.9V,
with E1 and E2 Active
VE1 = 0V, VE2 = 2V, V1 and V2 Measured Separately
30
µA
IQCH
Quiescent Supply Current at High Supply VV1 = 36V, VV2 = 36V, VV1 – VVS = 0.9V,
l
with E1 and E2 Active
VE1 = 0V, VE2 = 2V, V1 and V2 Measured Separately
65
µA
ILEAK
V1, V2 and VS Pin Leakage Currents
VV1 = VV2 = 28V, VVS = 0V. Measure IVS
When Other Pin Supplies Power (Note 4) VV1 = VV2 = 14V, VVS = –14V. Measure IVS
–10
–1
1
µA
–10
–1
1
µA
VV1 = VV2 = 36V, VVS = 8V. Measure IVS
–10
–1
1
µA
PowerPath Controller
VFR
PowerPath Switch Forward Regulation VV1, VV2 – VVS, 3.6V ≤ VV1, VV2 ≤ 36V,
Voltage
CG1 = CG2 = 3nF
VRTO
PowerPath Switch Reverse Turn-Off
VV1, VV2 – VVS, 3.6V ≤ VV1, VV2 ≤ 36V,
Threshold Voltage
CG1 = CG2 = 3nF
VFO
PowerPath Switch Forward Fast-On
VV1, VV2 – VVS, 6V ≤ VV1, VV2 ≤ 36V,
Voltage Comparator Threshold
CG1 = CG2 = 3nF, IG1, IG2 > 500µA
l 10
l –40
l 50
40
mV
–10
mV
125
mV
4416fa



Part Number LTC4416EMS
Description Low Loss Dual PowerPath Controllers
Maker Linear
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LTC4416EMS Datasheet PDF






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