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LTC4160EUDC-1#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P32
LTC4160/LTC4160-1
1
41601fa
TYPICAL APPLICATION
DESCRIPTION
Switching Power Manager
with USB On-The-Go And
Overvoltage Protection
The LTC
®
4160/LTC4160-1 are high efficiency power man-
agement and Li-Ion/Polymer battery charger ICs. They each
include a bidirectional switching PowerPath™ controller
with automatic load prioritization, a battery charger, and
an ideal diode.
The LTC4160/LTC4160-1’s bidirectional switching regulator
transfers nearly all of the power available from the USB
port to the load with minimal loss and heat which eases
thermal constraints in small spaces. These devices feature
a precision input current limit for USB compatibility and
Bat-Track output control for efficient charging. In addition,
the ICs can also generate 5V at 500mA for USB On-The-
Go applications.
An overvoltage circuit protects the LTC4160/LTC4160-1
from high voltage damage on the USB/wall adapter inputs
with an external N-channel MOSFET and a resistor.
The LTC4160/LTC4160-1 are available in a 3mm × 4mm
× 0.75mm QFN surface mount package.
L, LT, LTC, LTM, Linear Technology, Burst Mode and the Linear logo are registered trademarks
and PowerPath and Bat-Track are a trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners. Protected by U.S. Patents including
6522118, 6404251. Other patents pending.
FEATURES
APPLICATIONS
n
Bidirectional Switching Regulator Makes Optimal
Use of Limited Power Available from USB Port and
also Provides a 5V Output for USB On-The-Go
n
Overvoltage Protection Guards Against Damage
n
180mΩ Internal Ideal Diode Plus Optional External
Ideal Diode Controller Seamlessly Provides Low
Loss PowerPath When Input Power is Limited or
Unavailable
n
Instant-On Operation with Discharged Battery
n
Full Featured Li-Ion/Polymer Battery Charger
n
Bat-Track™ Adaptive Output Control For Efficient
Charging
n
1.2A Max Input Current Limit
n
1.2A Max Charge Current with Thermal Limiting
n
Battery Float Voltage: 4.2V (LTC4160), 4.1V
(LTC4160-1)
n
Low Battery Powered Quiescent Current (8µA)
n
20-pin 3mm × 4mm × 0.75mm QFN Package
n
Media Players and Personal Navigation Devices
n
Digital Cameras, PDAs, Smart Phones
Battery and V
BUS
Currents
vs Load Current
High Efficiency Power Manager/Battery Charger with USB
On-The-Go and Overvoltage Protection
V
BUS
USB
USB
ON-THE-GO
3.3µH
10µF
0.1µF
3.01k 1k
41601 TA01a
CLPROG PROG
LTC4160/
LTC4160-1
SW
V
OUT
BAT
Li-Ion
+
OVGATE
OVSENS
OPTIONAL
OVERVOLTAGE
PROTECTION
SYSTEM
LOAD
6.2k
10µF
LOAD CURRENT (mA)
0
CURRENT (mA)
250
500
750
800
41601 TA01c
0
–250
–500
200
400
600
1000
V
BUS
CURRENT
BATTERY CURRENT
(CHARGING)
V
BUS
= 5V
BAT = 3.8V
5x MODE
BATTERY CURRENT
(DISCHARGING)
USB OTG V
BUS
Voltage
vs V
BUS
Current
V
BUS
CURRENT (mA)
0
V
BUS
(V)
4.5
5.0
5.5
41601 TA01b
4.0
3.5
3.0
200
400
600100
300
500
700
V
BUS
= 4.75V
I
VBUS
= 500mA
V
OUT
= BAT = 3.8V
USB 2.0 SPECIFICATIONS
REQUIRE THAT HIGH
POWER DEVICES NOT
OPERATE IN THIS REGION
LTC4160/LTC4160-1
2
41601fa
PIN CONFIGURATIONABSOLUTE MAXIMUM RATINGS
V
BUS
(Transient) t < 1ms, Duty Cycle < 1% .. –0.3V to 7V
V
BUS
(Static), BAT, V
OUT,
NTC, ENOTG, ID,
ENCHARGER, VBUSGD, FAULT, CHRG......... –0.3V to 6V
I
LIM0
, I
ILIM1
........ –0.3V to Max(V
BUS
, V
OUT
, BAT) + 0.3V
I
OVSENS
................................................................... 10mA
I
CLPROG
....................................................................3mA
I
CHRG
, I
VBUSGD
, I
FAULT
.............................................50mA
I
PROG
........................................................................2mA
I
LDO3V3
...................................................................30mA
I
SW
, I
BAT
, I
VOUT
, I
VBUS
..................................................2A
Operating Temperature Range..................–40°C to 85°C
Maximum Junction Temperature...........................125°C
Storage Temperature Range
...................–65°C to 125°C
(Notes 1, 2, 3)
20 19 18 17
7 8
TOP VIEW
21
GND
UDC PACKAGE
20-LEAD (3mm × 4mm) PLASTIC QFN
9 10
6
5
4
3
2
1
11
12
13
14
15
16
OVGATE
OVSENS
VBUSGD
FAULT
ID
ENOTG
I
LIM1
I
LIM0
SW
V
BUS
V
OUT
BAT
NTC
NTCBIAS
LDO3V3
CLPROG
ENCHARGER
PROG
CHRG
IDGATE
T
JMAX
= 125°C, θ
JA
= 43°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4160EUDC#PBF LTC4160EUDC#TRPBF LFXY 20-Lead (3mm × 4mm) Plastic QFN –40°C to 85°C
LTC4160EUDC-1#PBF LTC4160EUDC-1#TRPBF LFXZ 20-Lead (3mm × 4mm) Plastic QFN –40°C to 85°C
LTC4160EPDC#PBF LTC4160EPDC#TRPBF FDRT 20-Lead (3mm × 4mm) Plastic UTQFN –40°C to 85°C (OBSOLETE)
LTC4160EPDC-1#PBF LTC4160EPDC-1#TRPBF FDST 20-Lead (3mm × 4mm) Plastic UTQFN –40°C to 85°C (OBSOLETE)
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
PowerPath Switching Regulator – Step-Down Mode
V
BUS
Input Supply Voltage 4.35 5.5 V
I
BUS(LIM)
Total Input Current 1x Mode
5x Mode
10x Mode
Suspend Mode
l
l
l
l
82
440
900
0.32
90
480
955
0.43
100
500
1000
0.5
mA
mA
mA
mA
I
VBUSQ
(Note 4) Input Quiescent Current 1x Mode
5x, 10x Modes
Suspend Mode
7
20
0.050
mA
mA
mA
h
CLPROG
(Note 4) Ratio of Measured V
BUS
Current to
CL
PROG
Program Current
1x Mode
5x Mode
10x Mode
Suspend Mode
211
1170
2377
9.6
mA/mA
mA/mA
mA/mA
mA/mA
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C (Note 2). V
BUS
= 5V, BAT = 3.8V, R
CLPROG
= 3.01k, unless otherwise noted.
LTC4160/LTC4160-1
3
41601fa
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
VOUT(POWERPATH)
V
OUT
Current Available Before
Discharging Battery
1x Mode, BAT = 3.3V
5x Mode, BAT = 3.3V
10x Mode, BAT = 3.3V
Suspend Mode
0.26
121
667
1217
0.34
0.43
mA
mA
mA
mA
V
CLPROG
CLPROG Servo Voltage in Current Limit Switching Modes
Suspend Mode
1.183
100
V
mV
V
UVLO
V
BUS
Undervoltage Lockout Rising Threshold
Falling Threshold
3.95
4.3
4
4.35 V
V
V
DUVLO
V
BUS
To BAT Differential Undervoltage
Lockout
Rising Threshold
Falling Threshold
200
50
mV
mV
V
OUT
V
OUT
Voltage 1x, 5x, 10x Modes, 0V < BAT ≤ 4.2V,
I
VOUT
= 0mA, Battery Charger Off
USB Suspend Mode, I
VOUT
= 250µA
3.5
4.5
BAT + 0.3
4.6
4.7
4.7
V
V
f
OSC
Switching Frequency 1.8 2.25 2.7 MHz
R
PMOS_POWERPATH
PMOS On-Resistance 0.18 Ω
R
NMOS_POWERPATH
NMOS On-Resistance 0.3 Ω
I
PEAK_POWERPATH
Peak Inductor Current Clamp 1x Mode (Note 5)
5x Mode (Note 5)
10x Mode (Note 5)
1
1.6
3
A
A
A
R
SUSP
Suspend LDO Output Resistance Closed Loop 10 Ω
PowerPath Switching Regulator – Step-Up Mode (USB On-The-Go)
V
BUS
Output Voltage 0 ≤ I
VBUS
≤ 500mA, V
OUT
> 3.2V 4.75 5.25 V
V
OUT
Input Voltage 2.9 4.2 V
I
VBUS
Output Current Limit
l
550 680 mA
I
PEAK
Peak Inductor Current Limit (Note 5) 1.8 A
I
OTGQ
V
OUT
Quiescent Current V
OUT
= 3.8V, I
VBUS
= 0mA (Note 6) 1.6 mA
V
CLPROG
Output Current Limit Servo Voltage 1.15 V
V
OUTUVLO
V
OUT
UVLO – V
OUT
Falling
V
OUT
UVLO – V
OUT
Rising
2.5 2.6
2.8
2.9
V
V
t
SCFAULT
Short Circuit Fault Delay PMOS Switch Off 7.2 ms
Overvoltage Protection
V
OVCUTOFF
Overvoltage Protection Threshold With 6.2k Series Resistor 6.1 6.42 6.7 V
V
OVGATE
OVGATE Output Voltage V
OVSENS
< V
OVCUTOFF
V
OVSENS
> V
OVCUTOFF
1.88 • V
OVSENS
0
12 V
V
t
RISE
OVGATE Time To Reach Regulation OVGATE C
LOAD
= 1nF 1.25 ms
Battery Charger
V
FLOAT
BAT Regulated Output Voltage LTC4160
l
4.179
4.165
4.2
4.2
4.221
4.235
V
V
LTC4160-1
l
4.079
4.065
4.1
4.1
4.121
4.135
V
V
I
CHG
Constant Current Mode Charger Current R
PROG
= 845Ω, 10x Mode R
CLPROG
≤ 2.49k
R
PROG
= 5k, 5x or 10x Mode
1120
185
1219
206
1320
223
mA
mA
I
BAT
Battery Drain Current V
BUS
> V
UVLO
, Suspend Mode,
I
VOUT
= 0µA
3.8 6 µA
V
BUS
= 0V, I
VOUT
= 0µA
(Ideal Diode Mode)
8 12 µA
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C (Note 2). V
BUS
= 5V, BAT = 3.8V, R
CLPROG
= 3.01k, unless otherwise noted.
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LTC4160EUDC-1#PBF

Mfr. #:
Buy LTC4160EUDC-1#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Battery Management Switching Power Manager with USB On-the-Go and Overvoltage Protection
Lifecycle:
New from this manufacturer.
Delivery:
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