R5642L Series
1 to 3
Cells Li-Ion Battery Protection IC for Secondary Protection
No.EA-613-211206
1
The R564 2L is an overc harge pr otec ti on IC for 1 t o 3 serial cel ls Li-i on / L i-polymer r echar ge abl e batt er y.
This IC provides t he hi gh-acc urac y v oltage det ection f unc tio n a nd the sh utd ow n func ti on can r educe t he
supply current to the minimum when all cell’s voltage becomes less than the shutdown detection voltage.
● Low consumption current and low shutdown current: achieving longer driving time with a battery of small
capacity
● High Voltage Tolerant Process
Absolute maximum rating: 26 V
● Low Supply Current
Normal mode: Typ. 0.85 µA (
V
CELLn
(1)
: 3.9 V, for 3-cell)
● Overcharge Voltage Detector with High Accuracy
Detection voltage (V
DET1n
) and accuracy: 4.10 V to 4.65 V, ± 0.015 V (Ta = 25°C)
Release voltage (V
REL1n
): V
DET1n
– 0 V to V
DET1n
− 0.5 V
Delay time selectable (t
VDET1
): 2, 4, 6 sec, with delay shortening function
(2)
Release condition: Auto release
● COUT Output (CMOS Output, Active-high): Ty p. 4.7 V
● Shutdown Function
Detection voltage: Typ. 3.5 V ±0.3 V
Shutdown current: Max.0.1µA
● 1 to 3 Cells Selectab le Bat t er y Protection
DFN2020-6
2.0 x 2.0 x 0.8 [mm]
Smart Phone, Tablet PC, Game, Hearing Aid
(1)
CELLn voltage (Ex. V
CELL1
is a voltage difference between VC1 and VC2), n = 1, 2, 3
(2)
By applying a voltage of 4 V ± 0.2 V to between the VDD and VC1 pins, a delay time is reduced down to approx.1/90.
OVERVIEW
KEY BENEFITS
KEY SPECIFICATIONS
PACKAGE
APPLICATIONS
TYPICAL APPLICATION CIRCUIT for 3-cell
R5642L
No.EA-613-211206
2
SELECTI O N G UIDE
The overcharge and the delay time are user-selectable options. Set V oltage, Delay Time and Optional Function
are user selectable. Refer to Product Code List for major lineup.
Selection Guide
Product Name
Package
Quantity per Reel
Pb Free
Halogen Free
R5642Lxxx$∗-TR
DFN2020-6 3,000 pcs Yes Yes
xxx: Spec
ify a c ode that combines the fo llowing set voltages. Refer to Set Voltag e Code in Product Cod e
List for major codes.
V
DET1n
(1)
: 4.10 V to 4.65 V in 5 mV step
V
REL1n
(2)
: V
DET1n
– 0 V to V
DET1n
– 0.5 V in 50 mV step
$: Specify a code that combines the following delay times. Refer to Delay Time Code Table for details.
Delay Ti me Code Table (Code Option
(2)
)
Code
t
VDET1
[s]
t
VREL1
[ms]
A
2
16
B
4
16
C
6
16
∗: Specify a code that combines the following functions. Refer to F unc t ion Cod e Table for details.
Function Code Table
Code
Overcharg e Rele ased Condition
COUT Output
A
Auto Release
CMOS
High-active
Product Code Table
Product Name
(Set Volta ge Code
(3)
)
Set Voltage [V]
Delay Time
V
DET1
V
REL1
t
VDET1
[s]
t
VREL1
[ms]
R5642L317BA
4.500
4.200
4
16
R5642L326BA
4.550
4.200
4
16
(1)
V
DET1n,
V
REL1n
: n = 1, 2, 3
(
2
)
For more information on other code opti ons, please contact our company's sales department.
(3)
Indicated with the numbers in bold type.