MC34673 datasheet(5/22 Pages) FREESCALE

部品番号	MC34673

部品情報	High Input Voltage 1.2A Charger for Single-cell Li-Ion Batteries

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Analog Integrated Circuit Device Data

Freescale Semiconductor

5

34673

ELECTRICAL CHARACTERISTICS

STATIC ELECTRICAL CHARACTERISTICS

Table 3. Static Electrical Characteristics

Characteristics noted under conditions VIN = 5.0V, -40°C ≤ TA ≤ 85°C, CIN =1µF, COUT = 2.2µF (see Figure 1), unless otherwise

noted. Typical values noted reflect the approximate parameter means at VIN = 5.0V and TA = 25°C under nominal conditions,

unless otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

POWER INPUT

Input Voltage Range(5)

VIN

2.6

-

6.6

V

VIN Pin Supply Current

Charger enabled(6)

Charger disabled

IIN

-

1400

-

350

µA

Regulated Output Voltage

VIN = 5.0V; IBAT = 10mA; TA = 25°C

VIN = 5.0V; IBAT = 10mA; TA = -20 to 70°C

VIN = 5.0V; IBAT = 10mA; TA = -40 to 85°C

VBAT

4.185

4.170

4.158

4.20

4.215

4.230

V

Power MOSFET On Resistance

VBAT = 4.0V; IBAT = 500mA; ICHG = 600mA

RDS(ON)

-

330

475

m

Ω

BAT Pin Standby Current

VIN not powered or charger disabled

ISTDBY

-

1.0

µA

Power On Reset

Rising VIN threshold

Falling VIN threshold

VPOR

3.0

-

2.4

3.9

2.6

V

VIN-BAT Offset Voltage

Rising threshold

Falling threshold

VOS

-

1.0

-

60

22

mV

Over-voltage Protection Rising Threshold

VOVP

6.6

6.8

7.0

V

Over-voltage Protection-Threshold Hysteresis

VOVPHYS

-

400

-

mV

CHARGE CURRENT

Constant-current Mode Charge Current Range(7)

ICHG

0.05

-

1.2

A

ICHG Accuracy

For ICHG between 300mA to 1200mA (Tested at 450mA)

For ICHG between 50mA to 300mA(7)

ICHG

94

90

100

106

110

%

Trickle-Mode Charge Current

ITRKL

16

20

24

% ICHG

End-of-Charge (EOC) Threshold

When ICHG is set to 450mA

IEOC

35

45

55

mA

ISET Pin Voltage for ICHG Reference(7)

VISET

-

1.0

-

V

Notes

5.

Refer to the Power-on-Reset parameter for VIN turn on and turn off values.

6.

Supply current does not include the current delivered to the battery through the BAT pin.

7.

Not tested. Guaranteed by design.

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同様の説明 - MC34673

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