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R5421NxxxC/xxxF
12
TEST CIRCUITS
5
2
V
6
4
3
0.01
F
5
2
V
6
1
Test Circuit 1
Test Circuit 2
5
2
V
A
6
1
5
2
V
6
3
50
A
Test Circuit 3
Test Circuit 4
5
2
V
6
3
50
A
5
2
V
6
1
50
A
Test Circuit 5
Test Circuit 6
5
2
V
6
1
50
A
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
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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)
60
40
-40
-20
0
100
80
20
-60
Ov
er-charge Threshold V
DET1
(V)
2.470
2.480
2.490
2.500
2.510
2.520
2.530
2.540
Temperature Topt (
C)
60
40
-40
-20
0
100
80
20
-60
Ov
er-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)
60
40
-40
-20
0
100
80
20
-60
Excess
Current Threshold V
DET3
(V)
2.10
2.15
2.20
2.25
2.35
2.30
2.40
Temperature Topt (
C)
60
40
-40
-20
0
100
80
20
-60
Shor
t Circuit Protector
Threshold
Vshor
t (V)
V
DD
=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)
60
40
-40
-20
0
100
80
20
-60
Ov
er-charge
Released V
oltage V
REL1
(V)
3.06
3.07
3.08
3.09
3.1
3.11
3.12
3.14
3.13
60
40
-40
-20
0
100
80
20
-60
Temperature Topt (
C)
Ov
er-charge
Released V
oltage 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(
F) V
DD
=3.6(V)
4.3(V)
Temperature Topt (
C)
60
40
-40
-20
0
100
80
20
-60
Output Dela
y of Ov
er-charge tV
DET1
(ms)
2
4
6
8
10
12
14
16
18
V
DD
=3.6(V)
2.2(V)
Temperature Topt (
C)
60
40
-40
-20
0
100
80
20
-60
Output Dela
y of Ov
er-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
V
DD
=3.0(V)
Temperature Topt (
C)
60
40
-40
-20
0
100
80
20
-60
Output Dela
y of Excess Current tV
DET3
(ms)
0
2
4
6
10
8
V
DD
=3.0(V)
Temperature Topt (
C)
60
40
-40
-20
0
100
80
20
-60
Output Dela
y of Shor
t Circuit Protector
tVshor
t (
s)
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)
60
40
-40
-20
0
100
80
20
-60
Supply Current I
DD
(
A)
R5421NxxxC/xxxF
16
12) Supply Current vs. Temperature(for R5421NxxxC) 12) Standby Current vs. Temperature(for R5421NxxxF)
Standb
y Current Istandb
y (
A)
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)
60
40
-40
-20
0
100
80
20
-60
0
0.6
0.4
0.6
0.8
1
1.2
1.4
V
DD
=2.0(V)
60
40
-40
-20
0
100
80
20
-60
Standb
y Current Istandb
y (
A)
Temperature Topt (
C)
13) C
OUT
Nch Driver ON Voltage vs. Temperature
14) C
OUT
Pch Driver ON Voltage vs. Temperature
I
OL
= 50(
A) 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 Dr
iv
er ON
V
oltage
V
OL1
(V)
I
CH
= 50(
A) 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 Dr
iv
er ON
V
oltage V
OH1
(V)
15) D
OUT
Nch Driver ON Voltage vs. Temperature
16) D
OUT
Pch Driver ON Voltage vs. Temperature
I
OL
= 50(
A) 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 Dr
iv
er ON
V
oltage V
OL2
(V)
I
CH
= 50(
A) 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 Dr
iv
er ON
V
oltage
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=100, C1=0.1F, R2=1k, C2=0.1F)
1.4
1.2
1
1.8
1.6
2
0.8
0.6
0.2
0.4
0
C3 (
F)
0
0.1
0.05
0.2
0.25
0.15
Output Dela
y of Ov
er-charge (s)
10000
1000
100
10
1
C2 (
F)
R1=100
, C1=0.1F, C3=0.01F, R2=1k
0.001
0.1
0.01
1
Output Dela
y of Shor
t Protection (
s)
19) Output Delay of Excess Current vs. V
DD
20) Excess Current Threshold vs. External Resistance R2
0
5
10
15
25
20
V-=0V
1V
Supply Voltage V
DD
(V)
4
3
4.5
3.5
2.5
Output Dela
y
Time of Excess Current tV
DET3
(ms)
0.19
0.20
0.21
0.23
0.22
R2 (k
)
2
0.5
1
3
2.5
1.5
0
Excess
Current Threshold V
DET3
(V)
21) Over-charge Threshold vs. External Resistance R1
R1 (
)
Ov
er-chag
re Threshold
(V)
4.264
4.266
4.268
4.27
4.274
4.272
600
200
400
1000
800
0
R5421NxxxC/xxxF
18
TYPICAL APPLICATION
R5421NxxxC
2
4
6
1
5
3
R1
100
R2
1k
C3
0.01
F
C2
0.1
F
C1
0.1
F
APPLICATION HINTS
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R5421NxxxC/xxxF
19
TIMING DIAGRAM
R5421NxxxC
t
t
t
t
t
V
DET
V
DET
Vshort
V
DET3
V
DD
V
DD
V
DD
V-
V-
C
OUT
D
OUT
V
DD
V
SS
V
SS
V
REL1
0
tV
DET1
tV
DET1
tV
DET2
tV
DET2
tV
DET3
tshort
Excess
current
Short
circuit
Open
Open
Charging
Current
Discharging
Current
Charging
Charging
Charging
Charging
Discharging
Discharging
Discharging
R5421NxxxC/xxxF
20
R5421NxxxF
t
t
t
t
t
V
DET1
V
DET
Vshort
V
DET3
V
DD
V
DD
V-
V-
D
OUT
C
OUT
V
DD
V
DD
V
SS
V
SS
V
REL1
V
REL2
0
tV
DET1
tV
DET1
tV
DET2
tV
DET2
tV
DET3
tshort
Charging
Charging
Charging
Discharging
Discharging
Discharging
Open
Short
circuit
Excess
current
Open
Open
Charging
Current
Discharging
Current
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