A4053MSP8R [AITSEMI]

1A LINEAR LI-ION BATTERY CHARGER;


型号：	A4053MSP8R
厂家：	AiT Semiconductor
描述：	1A LINEAR LI-ION BATTERY CHARGER
文件：	总10页 (文件大小：427K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

A4053

BATTERY MANAGEMENT

AiT Semiconductor Inc.

www.ait-ic.com

1A LINEAR LI-ION BATTERY CHARGER

DESCRIPTION

FEATURES

The A4053 is a complete constant current & constant

voltage linear charger for single cell lithium-ion

batteries. Its P-MSOP package and low external

component count make the A4053 ideally suited for

portable applications. Furthermore, the A4053 is

specifically designed to work within USB power

specifications.

No external sense resistor is needed, and no blocking

diode is required due to the internal MOSFET

architecture. Thermal feedback regulates the charge

current to limit the die temperature during high power

operation or high ambient temperature. The charge

voltage is fixed at 4.2V, and the charge current can

be programmed externally with a single resistor. The

A4053 automatically terminates the charge cycle

when the charge current drops to 1/10^ththe

programmed value after the final float voltage is

reached.

When the input supply (wall adapter or USB supply)

is removed, the A4053 automatically enters a low

current state, dropping the battery drain current to

less than 2uA. The A4053 can be put into shutdown

mode, reducing the supply current to 50uA.

Other features include Battery temperature monitor,

under-voltage lockout, automatic recharge and two

status pins to indicate charge and charge termination.



Programmable Charge Current Up to 1000mA

No MOSFET, Sense Resistor or Blocking Diode

Required

Complete Linear Charger in MSOP Package for

single Cell Lithium-Ion Batteries

Constant-Current/Constant-Voltage Operation

with Thermal Regulation to Maximize Charge

Rate Without Risk of Overheating

Charges Single Cell Li-Ion Batteries Directly

from USB Port

Preset 4.2V Charge Voltage with ±1%

Accuracy

Charge Current Monitor Output for Gas Gauging

Automatic Recharge

Charge state pairs of output, no battery and fault

status display

C/10 Charge Termination



50uA Supply Current in Shutdown

2.9V Trickle Charge Threshold

Soft-Start Limits Inrush Current

Battery temperature monitoring function

Available in P-MSOP8 Package

APPLICATION



Cellular Telephones, PDAs, MP3 /MP4 Players

Charging Docks and Cradles

Bluetooth 、GPS Applications

The A4053 is available in P-MSOP8 Package

TYPICAL APPLICATION

ORDERING INFORMATION

Package Type

P-MSOP8

Part Number

A4053MSP8R

A4053MSP8VR

MSP8

R: Tape & Reel

V: Halogen free package

Note

AiT provides all RoHS products,

suffix “ V “ means Halogen free Package

REV2.1

- JUL 2012 RELEASED, SEP 2012 UPDATED -

- 1 -

A4053

BATTERY MANAGEMENT

AiT Semiconductor Inc.

www.ait-ic.com

1A LINEAR LI-ION BATTERY CHARGER

PIN DESCRIPTION

Top View

Function

Pin # Symbol

Battery temperature detection input. TEMP pin to receive the battery NTC sensor output. If

the TEMP pin voltage is less than the input voltage is greater than 45% or 80% of the input

TEMP voltage means the battery temperature is too low or too high, then the charge has been

suspended. If the TEMP direct access GND, battery temperature detection canceled, the

other charged and functioning properly.

Charge Current Program, Charge Current Monitor and Shutdown Pin. The charge current is

programmed by connecting a 1% resistor, R_PROG, to ground. When charging in constant-current

mode, this pin servos to 1V. In all modes, the voltage on this pin can be used to measure the charge

current using the following formula: I_BAT= (V_PROG/R_PROG) •1000. The P_ROGpin can also be used to

PROG shut down the charger. Disconnecting the program resistor from ground allows a 3uA current to pull

the PROG pin high. When it reaches the 1.21V shutdown threshold voltage, the charger enters

shutdown mode, charging stops and the input supply current drops to 50uA. This pin is also clamped

to approximately 2.4V. Driving this pin to voltages beyond the clamp voltage will draw currents as

high as 1.5mA. Reconnecting R_PROGto ground will return the charger to normal operation.

Ground

GND

Positive Input Supply Voltage. Provides power to the charger, V_CCcan range from 4.25V to

6.5V and should be bypassed with at least a 10uF capacitor. When V_CCdrops to within

30mV of the BAT pin voltage, the A4051 enters shutdown mode, dropping I_BATto less than

2uA.

V_CC

Charge Current Output. Provides charge current to the battery and regulates the final float

voltage to 4.2V. An internal precision resistor divider from this pin sets the float voltage

which is disconnected in shutdown mode

BAT

The completion of battery charging instructions side. When the battery charge is complete,

STDBY STDBY pulled low by internal switches, indicating the completion of charging. In addition,

STDBY pin will be in a high-impedance state.

Open-Drain Charge Status Output. When the battery is charging, the CHRG pin is pulled

CHRG low by an internal N-channel MOSFET. When the charge cycle is completed, CHRG pin

will be in a high-impedance state.

Chip enable input High input level would A4051 is in normal working condition; low input

level so that A4051 is prohibited charging status. CE pin can be TTL or CMOS level-level

driver

REV2.1

- JUL 2012 RELEASED, SEP 2012 UPDATED -

- 2 -

A4053

BATTERY MANAGEMENT

AiT Semiconductor Inc.

www.ait-ic.com

1A LINEAR LI-ION BATTERY CHARGER

ABSOLUTE MAXIMUM RATINGS

V_CC, Input Supply Voltage

V_PROG,PROG pin Voltage

V_BAT, BAT pin Voltage

V_SS-0.3 V～V_SS+7V

V_SS-0.3 V～V_CC+0.3V

V_SS-0.3 V～7 V

V_SS-0.3V～V_SS+7V

1400mA

V_CHRG, CHAG pin Voltage

I_BAT, BAT pin Current

I_PROG, PROG pin Current

1400uA

T_OPA, Operating Ambient Temperature

T_STR, Storage Temperature

Lead Temperature (Soldering, 10s)

-40℃～+85℃

-65℃～+125℃

260℃

Stresses above 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 Electrical Characteristics are not implied. Exposure to absolute maximum

rating conditions for extended periods may affect device reliability.

REV2.1

- JUL 2012 RELEASED, SEP 2012 UPDATED -

- 3 -

A4053

BATTERY MANAGEMENT

AiT Semiconductor Inc.

www.ait-ic.com

1A LINEAR LI-ION BATTERY CHARGER

ELECTRICAL CHARACTERISTICS

Parameter

Symbol

V_CC

Conditions

Min

Typ

Max

Unit

Input supply voltage

4.25

6.5

2000

500

Charge mode, R_PROG=10K

Standby mode

350

150

Input supply current

Regulated Output Voltage

BAT pin Current

I_CC

V_FLOAT

I_BAT

Shutdown mode

(R_PROGnot connected,

V_CC<V_BATor V_CC<V_UV)

100

0°C≤T_A≤85°C, I_BAT= 40mA 4.158

4.2

500

1000 1100

-2.5

4.242

550

_PROG=2k,Current mode

450

900

R_PROG=1k,Current mode

Standby mode, V_BAT=4.2V

Shutdown mode

Sleep mode, V_CC=0V

V_BAT<V_TRIKL, R_PROG=1k

-6

2.5

110

0.3

100

Trickle charge current

Trickle charge Threshold

Voltage

Trickle voltage hysteresis

voltage

V_CCUndervoltage lockout

Threshold

V_CCundervoltage lockout

hysteresis

V_CC-V_BATLockout Threshold

voltage

I_TRIKL

V_TRIKL

R_PROG=10K，V_BATRising

R_PROG=10k

2.8

2.9

3.0

110

3.93

300

V_TRHYS

V_UV

V_UVHYS

V_ASD

From V_CClow to high

3.7

150

3.8

200

_CCfrom low to high

V_CCfrom high to low

_PROG=1k

100

140

0.085

0.1

0.115

C/10 Termination Current

Threshold

I_TERM

mA/mA

R_PROG=2k

R_PROG=1k, Current mode

0.085

0.93

0.1

1.0

0.115

1.07

0.6

P_ROGpin Voltage

V_PROG

V_CHRG

V_STDBY

CHRG pin Output low voltage

STDBY pin Output low voltage

I_CHRG=5mA

0.35

I_STDBY=5mA

0.35

0.6

Recharge Battery threshold

Voltage

ΔV_RECGV_FLOAT- V_RECHRG

100

200

CE high voltage

CE low voltage

V_CE-H

V_CE-L

1.2

0.6

TEMP pin voltage of the

high-end flip

V_TEMP-H

V_TEMP-L

T_LIM

%V_CC

℃

TEMP pin voltage of the low-end flip

Limited temperature patterns in

the junction temperature

145

REV2.1

- JUL 2012 RELEASED, SEP 2012 UPDATED -

- 4 -

A4053

BATTERY MANAGEMENT

AiT Semiconductor Inc.

www.ait-ic.com

1A LINEAR LI-ION BATTERY CHARGER

TYPICAL CHARACTERISTICS

1. V_PROGvs V_IN

2. V_FLOATvs V_CC

3. I_TRICKLvs V_CC(V_BAT=2.5V)

4. I_BATvs V_CC(V_BAT=3.8V)

5. I_BATvs V_BAT

6. Regulated Output (Float) Voltage vs Temp.

REV2.1

- JUL 2012 RELEASED, SEP 2012 UPDATED -

- 5 -

A4053

BATTERY MANAGEMENT

AiT Semiconductor Inc.

www.ait-ic.com

1A LINEAR LI-ION BATTERY CHARGER

7. P_ROGPin Voltage vs Temperature

8. Charge Current vs P_ROGPin Voltage

9. Trickle Charge Threshold vs Temperature

10. Recharge Voltage Threshold vs Temperature

12. P_ROGPin Pull-Up Current vs Temperature and

Supply Voltage

11. Charge Current vs Ambient Temperature

REV2.1

- JUL 2012 RELEASED, SEP 2012 UPDATED -

- 6 -

A4053

BATTERY MANAGEMENT

AiT Semiconductor Inc.

www.ait-ic.com

1A LINEAR LI-ION BATTERY CHARGER

13. P_ROGPin Current vs P_ROGPin Voltage

(Pull-Up Current)

14. P_ROGPin Current vs P_ROGPin Voltage

(Clamp Current)

REV2.1

- JUL 2012 RELEASED, SEP 2012 UPDATED -

- 7 -

A4053

BATTERY MANAGEMENT

AiT Semiconductor Inc.

www.ait-ic.com

1A LINEAR LI-ION BATTERY CHARGER

BLOCK DIAGRAM

REV2.1

- JUL 2012 RELEASED, SEP 2012 UPDATED -

- 8 -

A4053

BATTERY MANAGEMENT

AiT Semiconductor Inc.

www.ait-ic.com

1A LINEAR LI-ION BATTERY CHARGER

PACKAGE INFORMATION

Dimension in P-MSOP8 (Unit: mm)

Symbol

Min

Max

0.820

0.020

0.750

0.250

0.090

2.900

1.100

0.150

0.950

0.380

0.230

3.100

0.650(BSC)

2.900

4.750

0.400

0°

3.100

5.050

0.800

6°

REV2.1

- JUL 2012 RELEASED, SEP 2012 UPDATED -

- 9 -

A4053

BATTERY MANAGEMENT

AiT Semiconductor Inc.

www.ait-ic.com

1A LINEAR LI-ION BATTERY CHARGER

IMPORTANT NOTICE

AiT Semiconductor Inc. (AiT) reserves the right to make changes to any its product, specifications, to

discontinue any integrated circuit product or service without notice, and advises its customers to obtain the

latest version of relevant information to verify, before placing orders, that the information being relied on is

current.

AiT Semiconductor Inc.'s integrated circuit products are not designed, intended, authorized, or warranted to

be suitable for use in life support applications, devices or systems or other critical applications. Use of AiT

products in such applications is understood to be fully at the risk of the customer.

As used herein may

In order to

involve potential risks of death, personal injury, or servere property, or environmental damage.

minimize risks associated with the customer's applications, the customer should provide adequate design and

operating safeguards.

AiT Semiconductor Inc. assumes to no liability to customer product design or application support. AiT

warrants the performance of its products of the specifications applicable at the time of sale.

REV2.1

- JUL 2012 RELEASED, SEP 2012 UPDATED -

- 10 -

A4053MSP8R [AITSEMI]

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