MC34674 datasheet(6/26 Pages) FREESCALE

Part #	MC34674

Description	High Input Voltage Travel Charger for Single-cell Li-Ion Batteries

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Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

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Analog Integrated Circuit Device Data

6

Freescale Semiconductor

34674

ELECTRICAL CHARACTERISTICS

STATIC ELECTRICAL CHARACTERISTICS

Table 4. Static Electrical Characteristics

Characteristics noted under conditions VIN = 5.0 V, -40°C ≤ TA ≤ 85°C, CIN = COUT = 1.0 μF (see Figure 1), unless otherwise

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

unless otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

POWER INPUT

Input Voltage Range(6)

VIN

4.3

10

V

VIN Pin Supply Current

Charger enabled(7)

Charger disabled

IIN

-

1400

300

-

350

μA

Power On Reset

Rising VIN threshold

Falling VIN threshold

VPOR

3.0

-

2.4

3.9

2.6

V

Over-voltage Protection Rising Threshold

VOVP

10

11

12

V

Over-voltage-Protection Threshold Hysteresis

VOVPHYS

-

400

-

mV

VIN-BAT Offset Voltage

Rising threshold

Falling threshold

VOS

-

1.0

-

60

22

mV

OUTPUT

Regulated Output Voltage(8)

VIN = 5.0 V; IBAT = 10 mA; TA = 25°C

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

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

VBAT

4.190

4.183

4.179

4.20

4.210

4.217

4.221

V

Power MOSFET On Resistance

VBAT = 4.0 V; IBAT = 0.5 A; ICHG = 1.05 A

RDS(ON)

-

265

450

m

Ω

BAT Pin Standby Current

VIN not powered or charger disabled

VIN powered and in charge completion state (average over 2

seconds)(7)

ISTDBY

-

-2.0

-

1.0

4.0

μA

CHARGE CURRENT

Constant-Current-Mode Charge Current

MC34674A

MC34674B

MC34674C

MC34674D

ICHG

966

782

598

414

1050

850

650

450

1134

918

702

486

mA

Trickle-Mode Charge Current(9)

MC34674A

MC34674B

MC34674C

MC34674D

ITRKL

74

60

46

32

105

85

65

45

136

110

84

58

ICHG

Notes

6.

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

7.

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

8.

In the test mode, the charger still operates in CV mode after EOC.

9.

Characterized over the temperature range -40°C

≤ T

A ≤ 85°C

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Freescale Semiconductor...	MC34674	1Mb / 26P	High Input Voltage Travel Charger for Single-cell Li-Ion Batteries
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MC34674 Datasheet(PDF) 6 Page - Freescale Semiconductor, Inc

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