Charging Reference: Examples of 5-V charging circuits

1 ML612S, ML614S, ML616S REGDR
D 3.2VMA7001.8K

( + )( - )

Constantvoltage element 3.1VMA7001.5K ML621S REGDR
~3.0V(3V or more) GND 3.2VMA700910 3.1VMA700750
MLR ML2020 REGDR 3.2VMA700180 3.1VMA700150
2

Standard circuits When charging using another battery

D 3

For D

2

, select a diode of small inverse current

( + )( - )

D

1

, D

2

: MA716(Diode type code)

(I

D : MA704, MA700

R =1 A/5V)
3 1 D 2 D 1 LoadLoadLoad 5V R
1 R
2 ML612S, ML614SML616S2.7k5.1k
R 2 MLR ML621S1.1k2.0k ML2020180330
3 D

Simple economical circuits

D : MA700 : Very small inverse current

( + )( - )

Load

100 A below D,Vf

1 MLR

~

0.2V
Chapter 3 R
1 R
2 5V ML612S, ML614SML616SML621SML20205.1k 2.7k
R 2 2.4k 1.3k 330 180
Pat No.JP284170

* VF of D will be different from the value given above if a current in excess of 100 A flows to the load during operation. Compensation must be provided by the resistors in such cases.

Manganese Lithium Coin Type Batteries (ML series)

Infl uence of the charge voltage on ML batteries

If the charge voltage goes beyond its adequate range, battery performance may deteriorate early. Be sure to observe the guaranteed charge voltage. 3.53.02.5 Prohibited operating rangeOperational rangeInadequate range Early battery deterioration regionAdequate charge voltage range(guaranteed specified value)60 C withstand voltage limitThe lower charging voltage becomes,the less capacity becomes.

Charge voltage(V)

Chapter 3- 66