M62256 データシートの表示（PDF） - MITSUBISHI ELECTRIC

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M62256

Single chip battery charger control IC

MITSUBISHI ELECTRIC  

Mitsubishi Integrated Circuit <Digital/Analog Interface>

M62256FP

Single chip battery charger control IC

Internal Voltage Set-up

Items

Set-up output voltage at Adpt mode

Set-up output voltage at charge mode

Set-up output voltage when

over-current is detected

ISET1set-up voltage

ISET2set-up voltage

OCSET set-up voltage

Over-voltage set-up voltage

-∆V detection voltage1

-∆V detection voltage2

Voltage at the end of discharge

Temperature detection set-up voltage1

Temperature detection set-up voltage2

Over-heating detection set-up voltage

Symbols

VAdpt

VCHG

Conditions

Standard

Min Typ Max

Unit

820 864 910 mV

1.19 1.26 1.33 V

V DOWN

478 504 530 mV

V ISET1

V ISET2

VOCSET

VOVP

V -∆V-1

V -∆V-2

VCHGON

VTTH1

V TTH2

VO/H

When quick charging

When trickle charging

When adapter mode

within Initialization timer

after initialization timer has passed

Temperature at the start of charging

Temperature at the start of recharging

Charge stop temperature

123

11.4

208

9.0

0.6

60

4.7

0.92

1.06

0.81

130

12.0

220

9.5

1.0

100

5.0

0.97

1.12

0.86

137 mV

12.6 mV

232 mV

10 V

1.4 V

140 mV

5.3 V

1.02 V

1.18 V

0.91 V

Items

Symbols

Conditions

Standard

Min Typ Max

Unit

Oscillation frequency

fosc

Rc=30KÉ∂ , Cc=2200pF

9.22 10.24 11.26 KHz

Initialization timer1

Tm1

Battery voltage<5V

18.0 20.0 22.0 min

Initialization timer2

Initialization timer3

Undetected time for -É¢V

Safety timer1

Tm2

Tm3

TNDET

Tms1

5V≤Battery voltage<6.5V

Battery voltage≥6.5V

when quick charging

4.5 5.0 5.5 min

2.7 3.0 3.3 min

2.7 3.0 3.3 min

2.7 3.0 3.3 hr

Safety timer2

Tms2

when trickle charging

21.6 24 26.4 hr

Over-current detection time

TOC

9.0 10.0 11.0 sec

Note: The time given to each timer is when the oscillation frequency of 10.24KHz is used.

Recommended Operating Range

Power supply voltage (Vcc) …………………… 3~15V

Charge current (See Note1)

Preliminary charge ……………………… 50~200mA

Quick charge …………………………… 0.8~2A

Trickle charge …………………………… 80~200mA

Discharge current (See Note1) ………………… 300~500mA

LED drive current (See Note2) ………………… 115mA

Note1. The charging current must be set according to the battery specifications.

The currents used for quick charge and trickle charge are detemined by the voltage

of the terminals Iset1 and Iset2 and current sense resistor R4 (Application in page 9).

Note2. The LED drive current is calculated by the following equation.

I LED

•=•

200mV

RL

(A)

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