900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Linear Technology Electronic Components Datasheet

LTC4075HVXEDD Datasheet

High Voltage Dual Input Li-Ion/Polymer Battery Charger

No Preview Available !

FEATURES
22V Maximum Voltage for Wall Adapter and
USB Inputs
Charge Single-Cell Li-Ion Batteries from Wall
Adapter and USB Inputs
Automatic Input Power Detection and Selection
Charge Current Programmable up to 950mA from
Wall Adapter Input
Overvoltage Lockout for Wall Adapter and
USB Inputs
No External MOSFET, Sense Resistor or Blocking
Diode Needed
Thermal Regulation Maximizes Charge Rate Without
Risk of Overheating*
Preset Charge Voltage with ±0.35% Accuracy
Programmable Charge Current Termination
40μA USB Suspend Current in Shutdown
Independent “Power Present” Status Outputs
Charge Status Output
Automatic Recharge
Available in a Thermally Enhanced, Low Profile
(0.75mm) 10-Lead (3mm × 3mm) DFN Package
APPLICATIONS
Cellular Telephones
Handheld Computers
Portable MP3 Players
Digital Cameras
LTC4075HVX
High Voltage Dual Input
Li-Ion/Polymer Battery
Charger
DESCRIPTION
The LTC®4075HVX is a standalone linear charger that is
capable of charging a single-cell Li-Ion/Polymer battery
from both wall adapter and USB inputs. The charger can
detect power at the inputs and automatically select the
appropriate power source for charging.
No external sense resistor or blocking diode is required
for charging due to the internal MOSFET architecture. The
LTC4075HVX features a maximum 22V rating for both
wall adapter and USB inputs although charging stops if
the selected power source exceeds the overvoltage limit.
Internal thermal feedback regulates the battery charge
current to maintain a constant die temperature during high
power operation or high ambient temperature conditions.
The float voltage is fixed at 4.2V and the charge current is
programmed with an external resistor. The LTC4075HVX
terminates the charge cycle when the charge current drops
below the programmed termination threshold after the
final float voltage is reached.
Other features include automatic recharge, undervoltage
lockout, charge status outputs, and “power present” status
outputs to indicate the presence of wall adapter or USB
power. No trickle charge allows full current from the charger
when a load is connected directly to the battery.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All
other trademarks are the property of their respective owners.
*Protected by U.S. Patents including 6522118, 6700364.
TYPICAL APPLICATION
Dual Input Battery Charger for Single-Cell Li-Ion
WALL
ADAPTER
USB
PORT
1μF
LTC4075HVX
DCIN
BAT
USBIN
1μF
IUSB
2k
IDC
ITERM
1% 1.24k
GND
1%
800mA (WALL)
500mA (USB)
+ 4.2V
SINGLE CELL
Li-Ion BATTERY
2k
1%
4075hvx TA01
Charge Current vs Supply Voltage
900
RIDC = 1.24k
800
RIUSB = 2k
VBAT = 3.5V
700
CHARGE FROM DCIN
600
500
400
CHARGE
300
FROM USBIN
200
100
0
2 3 4 5 6 7 8 19 20
SUPPLY VOLTAGE (V)
4075hvx TA01b
4075hvxf
1


Linear Technology Electronic Components Datasheet

LTC4075HVXEDD Datasheet

High Voltage Dual Input Li-Ion/Polymer Battery Charger

No Preview Available !

LTC4075HVX
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Supply Voltage (DCIN, USBIN) ............–0.3 to 22V
ENABLE, CHRG, PWR, USBPWR, BAT ............–0.3 to 6V
IDC, IUSB, ITERM Pin Current .................................1mA
DCIN, USBIN, BAT Pin Current....................................1A
BAT Short-Circuit Duration............................Continuous
Maximum Junction Temperature .......................... 125°C
Operating Temperature Range (Note 2) ... –40°C to 85°C
Storage Temperature Range................... –65°C to 125°C
PACKAGE/ORDER INFORMATION
TOP VIEW
USBIN 1
IUSB 2
ITERM 3
PWR 4
CHRG 5
10 DCIN
9 BAT
11
8 IDC
7 USBPWR
6 ENABLE
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
TJMAX = 125°C, θJA = 40°C/W (Note 3)
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
ORDER PART NUMBER DD PART MARKING
LTC4075HVXEDD
LCQM
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.
ELECTRICAL CHARACTERISTICS The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VDCIN = 5V, VUSBIN = 5V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VDCIN
Operating Supply Voltage
4.3
5.5
V
VUSBIN
Operating Supply Voltage
4.3
5.5
V
IDCIN
DCIN Supply Current
Charge Mode (Note 4), RIDC = 10k
350
800
μA
Standby Mode; Charge Terminated
70
120
μA
Shutdown Mode (ENABLE = 5V)
40
80
μA
Overvoltage Mode (VDCIN = 10V)
70
140
μA
IUSBIN
USBIN Supply Current
Charge Mode (Note 5), RIUSB = 10k, VDCIN = 2V
Standby Mode; Charge Terminated, VDCIN = 2V
Shutdown (VDCIN = 2V, ENABLE = 0V)
Overvoltage Mode (VUSBIN = 10V)
VDCIN > VUSBIN
350
800
μA
70
120
μA
40
80
μA
70
140
μA
23
40
μA
VFLOAT
Regulated Output (Float) Voltage
IBAT = 1mA
IBAT = 1mA, 0°C < TA < 85°C
4.185 4.2 4.215
V
4.165 4.2 4.235
V
IBAT
BAT Pin Current
RIDC = 1.25k, Constant-Current Mode
RIUSB = 2.1k, Constant-Current Mode
RIDC = 10k or RIUSB = 10k
Standby Mode, Charge Terminated
Shutdown Mode (Charger Disabled)
Sleep Mode (VDCIN = 0V, VUSBIN = 0V)
745
800
855
mA
443
476
510
mA
93
100
107
mA
–7.5 –12
μA
–7.5 –12
μA
–7.5 –12
μA
VIDC
IDC Pin Regulated Voltage
Constant-Current Mode
1
V
VIUSB
IUSB Pin Regulated Voltage
Constant-Current Mode
1
V
ITERMINATE
Charge Current Termination Threshold
RITERM = 1k
RITERM = 2k
RITERM = 10k
RITERM = 20k
85
100
115
mA
42
50
58
mA
8
10
12
mA
3.5
5
6.5
mA
4075hvxf
2


Part Number LTC4075HVXEDD
Description High Voltage Dual Input Li-Ion/Polymer Battery Charger
Maker Linear
PDF Download

LTC4075HVXEDD Datasheet PDF






Similar Datasheet

1 LTC4075HVXEDD High Voltage Dual Input Li-Ion/Polymer Battery Charger
Linear





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy