Li-Ion BATTERY PROTECTOR
1
NO. EA-069-0204
OUTLINE
!"#$!%&
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R5421NxxxC/xxxF
2
FEATURES
• !," *" ((((((((((((((((((((((((((((((((((((((((( " *" *(6(:;0
*"$& *(:(6;0
$&
*((:;0
$&
• 4"* ((((((((((((((((((( 7$<=& >#-
$<::=& >6:#-
7 >(?
• -* ((((((((((((((((((((((((((( 7 (:-(-:(::-
7 (:-6(:-:(::-
• @" " (((((((((((((((((((((((((((((((( )" :(:-:(-:(::-
0"* >?
• 7"" *(((((((((((((((((((((((((((( # *6<:(:;-<(6-
A#
• 7"" *((((((((((((((((((((((( -<(-,"
:#
• # 3 (((((((((((((((((((((((((((((((((((((((((((((((((( 7699
APPLICATIONS
• !% *3
• 4 *"!% *
R5421NxxxC/xxxF
3
BLOCK DIAGRAM
•
Level
Shifter
Short circuit
Detector
Delay
5
613
VDD
VSS DOUT COUT V-
4Ct
VD1
VD2
VD3
2
•
Level
Shifter
Short circuit
Detector
Delay
5
613
VDD
VSS DOUT COUT V-
4Ct
VD1
VD2
VD3
2
R5421NxxxC/xxxF
4
SELECTION GUIDE
" '"
(
B"# ,C
←B"#
↑↑↑
Code Description
"#" '
", *(
.*#
*C$&
PIN CONFIGURATION
654
(mark side)
123
PIN DESCRIPTION
Pin No. Symbol Pin description
.
7""
'87""
- B"
6
7""
'87""
B
"" *-.
-
B," *
9-
D"
R5421NxxxC/xxxF
5
ABSOLUTE MAXIMUM RATINGS
-<:-
Symbol Item Ratings Unit
- " * :(6 -
-
-
"-
-
-E-%:(6
-:(6-%:(6
-
-
-
-.
7""
.
-E-%:(6
-:(6-%:(6
-
-
BB, : #+
7#"
:E =
#" =
ABSOLUTE MAXIMUM RATINGS
0 "8#"# # "#""*
(8'" "*,##"#" " *(7
"##"##*"##( *
*# *" , #(
R5421NxxxC/xxxF
6
ELECTRICAL CHARACTERISTIC
• R5421N111C <=
Symbol Item Conditions Min. Typ. Max. Unit
- 7" - -F- ( :(: -
- 8#"#-
:-
- --'
--<:- ( -
- 7 ." *
$<=&
$<::=&
(
(:
(:
(:
(A
(E:
-
-
-
(:: (: (: -
-
7"" *
6<:(:;'-<6(9-(6- 9: A G: #
- 7 . " *
(6A (:: (96 -
-
7"" *
. -<6(9-(- A : 6 #
- )" ./-/
:(A :(: :(6 -
-
7"" *
" -<6(:- G 6 A #
- -<6(:- -( -:(G -:(9 -
7"". *
-<6(:- : ;
)
" -<6(9-'-<(:- : :: : 3Ω
- 7 <:;0'-<(- :(6 :(: -
- B 7 <:;0'-<6(G- 6( 6(A -
- 7 . <:;0'-<(- :( :( -
- B 7 . <:;0'-<6(G- 6( 6(A -
" *" -<6(G-'-<:- 6(: 9(: ;0
* *" -<(:- :(6 :(9 ;0
*Note: Considering of variation in process parameters, we compensate for this characteristic related to tem-
perature by laser-trim, however, this specification is guaranteed by design, not production tested.
R5421NxxxC/xxxF
7
• R5421N112C <=
Symbol Item Conditions Min. Typ. Max. Unit
- 7" - -- ( :(: -
- 8#"#-
:-
- --'
--<:- ( -
- 7 ." *
-
<=
<::=
(6
(6:
(6:
(6:
(6A
(6E:
-
-
-
(:: (: (:: -
-
7"" *
6<:(:;'-<6(9-(- 9 AA G6 #
- 7 . " *
- (6A (:: (96 -
-
7"" *
. -<6(9-(- A : 6 #
- )" ./-/
- :(A :(: :(6 -
-
7"" *
" -<6(:- G 6 A #
- -<6(:- -( -:(G -:(9 -
7"". *
-<6(:- : ;
" -<6(9-'-<(:- : :: : 3Ω
- 7 <:;0'-<(- :(6 :(: -
- B 7 <:;0'-<6(G- 6( 6(A -
- 7 . <:;0'-<(- :( :( -
- B 7 . <:;0'-<6(G- 6( 6(A -
" *" -<6(G-'-<:- 6(: 9(: ;0
* *" -<(:- :(6 :(9 ;0
*Note: Considering of variation in process parameters, we compensate for this characteristic related to tem-
perature by laser-trim, however this specification is guaranteed by design, not production tested.
R5421NxxxC/xxxF
8
• R5421N151F <=
Symbol Item Conditions Min. Typ. Max. Unit
- 7" - -- ( :(: -
- 8#"#-
:-
- --'
--<:- ( -
- 7 ." *
-
<=
<::=
(
(:
(:
(:
(A
(E:
-
-
-
(::: (:: (:: -
-
7"" *
6<:(:;'-<6(9-(6- 9: A G: #
- 7 . " *
- (6A (:: (96 -
-
7"" *
. -<6(9-(- A : 6 #
- )" ./-/
- :(A :(: :(6 -
-
7"" *
" -<6(:- G 6 A #
- -<6(:- -( -:(G -:(9 -
7"". *
-<6(:- : ;
" -<6(9-'-<(:- : :: : 3Ω
- 7 <:;0'-<(- :(6 :(: -
- B 7 <:;0'-<6(G- 6( 6(A -
- 7 . <:;0'-<(- :( :( -
- B 7 . <:;0'-<6(G- 6( 6(A -
" *" -<6(G-'-<:- 6(: 9(: ;0
* *" -<(:- (: (: ;0
*Note: Considering of variation in process parameters, we compensate for this characteristic related to tem-
perature by laser-trim, however, this specification is guaranteed by design, not production tested.
R5421NxxxC/xxxF
9
• R5421N152F <=
Symbol Item Conditions Min. Typ. Max. Unit
- 7" - -- ( :(: -
- 8#"#-
:-
- --'
--<:- ( -
- 7 ." *
-
<=
<::=
(6
(6:
(6:
(6:
(6A
(6E:
-
-
-
(:: (: (:: -
-
7"" *
6<:(:;'-<6(9-(- 9 AA G6 #
- 7 . " *
- (6A (:: (96 -
-
7"" *
. -<6(9-(- A : 6 #
- )" ./-/
- :(A :(: :(6 -
-
7"" *
" -<6(:- G 6 A #
- -<6(:- -( -:(G -:(9 -
7"". *
-<6(:- : ;
" -<6(9-'-<(:- : :: : 3Ω
- 7 <:;0'-<(- :(6 :(: -
- B 7 <:;0'-<6(G- 6( 6(A -
- 7 . <:;0'-<(- :( :( -
- B 7 . <:;0'-<6(G- 6( 6(A -
" *" -<6(G-'-<:- 6(: 9(: ;0
* *" -<(:- (: (: ;0
*Note: Considering of variation in process parameters, we compensate for this characteristic related to tem-
perature by laser-trim, however, this specification is guaranteed by design, not production tested.
R5421NxxxC/xxxF
10
OPERATION
• VD1 / Over-Charge Detector in the 'C' version
-.#- (+- -#
, " "-'-.
87)"172,1!2 (
,-.#3 142(
-.#3*# , "#(
"#,- #, ,1-2(
+ '3 -#*3
#3-.,- ,1-21-2(
0,- -'*# *
3#3 " , " )(
," 4,- #, ,-*"",
"(
0"" *#* 6,-
( #3 *#####""
, )"(
+- " -- ," 3 ,
-,#"" *#'-.," "" "
)(
"" *# " ,C
-HI<$6HI×$-H-I:(A&$:(E×:&
C <=- "" (
0 "#31!2 -
142 - ,87"(
• VD2 / Over-Discharge Detector
-.#- (+-
-# " " ,-'-.
87)",.1!2 (
-.,. 142*
* 3 ( + - * "
-" ," 87)'
- #" " -.#J4J,"
"787) (
*3#3. 142" *,-
R5421NxxxC/xxxF
11
-(
@'', 5" # '
-'
+ 5" K'*3#3*# ,
, -'(-8(
0"" *# *'-<:#*(-<(-(+
- , , -- ," 3
-,#"" *#'-.," "" "
)(
0 * -.' " * " ," " * * :(6;0 $
&(:µ0$&-<(:-*(0' *
*#(7' ' 7)"
*#(
""*.87142 -1!2 -(
• VD3/Excess Current Detector, Short Circuit Protector
@"",3, )172
(
+- " ", --
" -' " " -
-#3" ( 87)"
,.1!2 (
0"" *#" *'6#*(-<6(:-(
05"3*- # ",--, *#3
)*142(
+" '.," !, *#," ;*(
-" " ,'*(::3Ω',-(
0""'#""
"#3 )172"# *, -
,- "" ," *(
- ," -#,"
*#', ,- -,"
*(
0", *#(
R5421NxxxC/xxxF
12
TEST CIRCUITS
5
2
V
6
4
3
0.01µF
5
2
V
6
1
Test Circuit 1 Test Circuit 2
5
2
VA
6
1
5
2
V
6
3
50µA
Test Circuit 3 Test Circuit 4
5
2
V
6
3
50µA
5
2V
6
1
50µA
Test Circuit 5 Test Circuit 6
5
2V
6
1
50µA
5
2
A
6
Test Circuit 7 Test Circuit 8
R5421NxxxC/xxxF
13
C3
5
2
C1
R1
V
6
1
3
5
2
C2
R2
V
6
1
Test Circuit 9 Test Circuit 10
* ,*""(
" C* &&A&A&
" C* &9&E&
"6 C* 6&&G&:&G&
" C* 6&
" C* &
"9 C* &
"A C* 9&
"E C* &&
"G C* &
": C* E&:&
R5421NxxxC/xxxF
14
TYPICAL CHARACTERISTICS
1) Over-charge Threshold vs. Temperature 2) Over-discharge Threshold vs. Temperature
4.200
4.210
4.220
4.230
4.240
4.250
4.260
4.270
Temperature Topt (°C)
6040-40 -20 0 1008020-60
Over-charge Threshold V
DET1
(V)
2.470
2.480
2.490
2.500
2.510
2.520
2.530
2.540
Temperature Topt (°C)
6040-40 -20 0 1008020-60
Over-discharge Threshold V
DET2
(V)
3) Excess Current Threshold vs. Temperature 4) Short Circuit Protector Threshold vs. Temperature
0.190
0.195
0.200
0.205
0.210
Temperature Topt (°C)
6040-40 -20 0 1008020-60
Excess Current Threshold V
DET3
(V)
2.10
2.15
2.20
2.25
2.35
2.30
2.40
Temperature Topt (°C)
6040-40 -20 0 1008020-60
Short Circuit Protector Threshold Vshort (V)
VDD=3.0(V)
5) Over-charge Released Voltage vs. Temperature 6) Over-discharge Released Voltage vs. Temperature
(for R5421NxxxF)
4.000
4.010
4.020
4.030
4.040
4.050
4.060
4.070
Temperature Topt (°C)
6040-40 -20 0 1008020-60
Over-charge Released Voltage V
REL1
(V)
3.06
3.07
3.08
3.09
3.1
3.11
3.12
3.14
3.13
6040-40 -20 0 1008020-60
Temperature Topt (°C)
Over-charge Released Voltage V
REL2
(V)
R5421NxxxC/xxxF
15
7) Output Delay of Over-charge vs. Temperature 8) Output Delay of Over-discharge vs. Temperature
20
30
40
50
60
70
80
90
100
C=0.01(µF) V
DD
=3.6(V)→4.3(V)
Temperature Topt (°C)
6040-40 -20 0 1008020-60
Output Delay of Over-charge tV
DET1
(ms)
2
4
6
8
10
12
14
16
18
V
DD
=3.6(V)→2.2(V)
Temperature Topt (°C)
6040-40 -20 0 1008020-60
Output Delay of Over-discharge
tV
DET2
(ms)
9) Output delay of Excess current vs. Temperature 10) Output Delay of Short circuit protector vs. Temperature
0
2
4
6
8
10
12
14
20
18
16
VDD=3.0(V)
Temperature Topt (°C)
6040-40 -20 0 1008020-60
Output Delay of Excess Current tV
DET3
(ms)
0
2
4
6
10
8
V
DD
=3.0(V)
Temperature Topt (°C)
6040-40 -20 0 1008020-60
Output Delay of Short Circuit Protector
tVshort (µs)
11) Supply Current vs. Temperature
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
V
DD
=3.9(V) V-=0(V)
Temperature Topt (°C)
6040-40 -20 0 1008020-60
Supply Current IDD (µA)
R5421NxxxC/xxxF
16
12) Supply Current vs. Temperature(for R5421NxxxC) 12) Standby Current vs. Temperature(for R5421NxxxF)
Standby Current Istandby (µA)
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40 V
DD
=2.0(V)
Temperature Topt (°C)
6040-40 -20 0 1008020-60
0
0.6
0.4
0.6
0.8
1
1.2
1.4 V
DD
=2.0(V)
6040-40 -20 0 1008020-60
Standby Current Istandby (µA)
Temperature Topt (°C)
13) COUT Nch Driver ON Voltage vs. Temperature 14) COUT Pch Driver ON Voltage vs. Temperature
I
OL
= 50(µA) V
DD
=4.4(V)
0.300
0.350
0.400
0.250
0.150
0.200
0.100
Temperature Topt (°C)
-60 -40 20 40 60 80 100-20 0
C
OUT
Nch Driver ON Voltage V
OL1
(V)
I
CH
= 50(µA) V
DD
=3.9(V)
3.800
3.850
3.900
3.750
3.650
3.700
3.600
Temperature Topt (°C)
-60 -40 20 40 60 80 100-20 0
C
OUT
Pch Driver ON Voltage V
OH1
(V)
15) DOUT Nch Driver ON Voltage vs. Temperature 16) DOUT Pch Driver ON Voltage vs. Temperature
I
OL
= 50(µA) V
DD
=2.4(V)
0.350
0.400
0.450
0.500
0.300
0.250
0.100
0.150
0.200
0.050
Temperature Topt (°C)
-60 -40 20 40 60 80 100-20 0
D
OUT
Nch Driver ON Voltage V
OL2
(V)
I
CH
= 50(µA) V
DD
=3.9(V)
3.800
3.850
3.900
3.750
3.650
3.700
3.600
-60 -40 20 40 60 80 100-20 0
D
OUT
Pch Driver ON Voltage V
OH2
(V)
Temperature Topt (°C)
R5421NxxxC/xxxF
17
17) Output Delay of Over-charge vs. Capacitance C3 18) Output Delay of Short protection vs. Capacitance C2
V
DD
=3.8V→4.3V(R1=100Ω, C1=0.1µF, R2=1kΩ, C2=0.1µF)
1.4
1.2
1
1.8
1.6
2
0.8
0.6
0.2
0.4
0
C3 (µF)
0 0.10.05 0.2 0.250.15
Output Delay of Over-charge (s)
10000
1000
100
10
1
C2 (µF)
R1=100Ω, C1=0.1µF, C3=0.01µF, R2=1kΩ
0.001 0.10.01 1
Output Delay of Short Protection (µs)
19) Output Delay of Excess Current vs. VDD 20) Excess Current Threshold vs. External Resistance R2
0
5
10
15
25
20
V-=0V→1V
Supply Voltage VDD (V)
43 4.53.52.5
Output Delay Time of Excess Current tV
DET3
(ms)
0.19
0.20
0.21
0.23
0.22
R2 (kΩ)
20.5 1 32.51.50
Excess Current Threshold V
DET3
(V)
21) Over-charge Threshold vs. External Resistance R1
R1 (Ω)
Over-chagre Threshold (V)
4.264
4.266
4.268
4.27
4.274
4.272
600200 400 10008000
R5421NxxxC/xxxF
18
TYPICAL APPLICATION
R5421NxxxC 2
4
6
1
5
3
R1
100Ω
R2
1kΩ
C3
0.01µF
C2
0.1µF
C1
0.1µF
APPLICATION HINTS
, K" * (0## " 3Ω(
0 " '#3#'""" ,
(
, K- (#, *
* "(## " 3Ω(
0*3*# *" ,*#,
"* ×#(
## " ;(
" #" *
'*3', #
#* " , "# ,
/%/" #3Ω(
#××#" ,C
×≤×
@"×'#-'," ×'#-'
#*#"""(
R5421NxxxC/xxxF
19
TIMING DIAGRAM
• R5421NxxxC
t
t
t
t
t
VDET
VDET
Vshort
VDET3
VDD
VDD
VDD
V-
V-
COUT
DOUT
VDD
VSS
VSS
VREL1
0
tVDET1 tVDET1
tVDET2 tVDET2 tVDET3 tshort
Excess
current
Short
circuit
Open Open
Charging
Current
Discharging
Current
Charging Charging
Charging ChargingDischarging
Discharging Discharging
R5421NxxxC/xxxF
20
• R5421NxxxF
t
t
t
t
t
VDET1
VDET
Vshort
VDET3
VDD
VDD
V-
V-
DOUT
COUT
VDD
VDD
VSS
VSS
VREL1
VREL2
0
tVDET1 tVDET1
tVDET2 tVDET2 tVDET3 tshort
Charging Charging
Charging
Discharging
Discharging Discharging
Open
Short
circuit
Excess
current
Open Open
Charging
Current
Discharging
Current
