R5426D102CA-TR-FA [RICOH]
Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO6, SON-6;
| 型号： | R5426D102CA-TR-FA |
| 厂家： | 
RICOH ELECTRONICS DEVICES DIVISION |
| 描述： | Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO6, SON-6 光电二极管 |
| 文件： | 总22页 (文件大小：187K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LI-ion/POLYMER 1-CELL PROTECTOR
NO. EA-090-0504
R5426x SERIES
OUTLINE
The R5426xxxxx Series are protection ICs for over-charge/discharge of rechargeable one-cell Lithium-ion
(Li+) / Lithium polymer excess load current, further include a short circuit protector for preventing large external
short circuit current and Excess charge/discharge-current.
Each of these ICs is composed of four voltage detectors, a reference unit, a delay circuit, a short circuit
protector, an oscillator, a counter, and a logic circuit. When Over-charge voltage or Excess charge-current
threshold crosses the each detector threshold from a low value to a high value, the output of COUT pin switches to
low level after internal fixed delay time. After detecting over-charge or excess charge current, these detectors
can be reset and the output of COUT becomes "H" when a kind of load is connected to VDD after a charger is
disconnected from the battery pack, and the cell voltage becomes lower than over-charge detector threshold. If a
charger is continue to be connected to the battery pack, even the cell voltage becomes lower than over-charge
detector threshold, over-charge state is not released.
The output of DOUT pin, the output of Over-discharge detector and Excess discharge-current detector, switches
to low level after internally fixed delay time, when discharged voltage crosses the detector threshold from a high
value to a value lower than VDET2.
After detecting over-discharge voltage, connect a charger to the battery pack, and when the battery supply
voltage becomes higher than over-discharge detector threshold, VD2 is released and the voltage of DOUT pin
becomes "H" level.
An excess discharge-current and short circuit state can be sensed and cut off through the built in excess
current detector, VD3, with DOUT being enabled to low level. Once after detecting excess discharge-current or
short circuit, the VD3 is released and DOUT level switches to high by detaching a battery pack from a load system.
After detecting over-discharge, supply current will be kept extremely low by halting internal circuits' operation.
By setting the DS pin at VDD level, the output delay of all items except short circuit detector can be shortened.
Especially, the delay time of over-charge detector can be reduced into approximately 1/90, therefore, testing
time of protector circuit board can be reduced. Further, when the DS pin is set at the specified middle range
voltage, output delay circuit is disabled, then over-charge and over-charger current can be detected immediately.
Output delay time would be less than several tens µs in this case. Output type of COUT and DOUT are CMOS. 6-pin,
SOT-23-6 or SON-6 are available.
1
R5426x
FEATURES
• Manufactured with High Voltage Tolerant Process...............Absolute Maximum Rating 28V
• Low supply current ....................................... Supply current (At normal mode) Typ. 3.0µA
Standby current (detecting over-discharge) Max. 0.1µA
• High accuracy detector threshold................. Over-charge detector (Topt=25°C) ±25mV
(Topt=-5 to 55°C) ±30mV
Over-discharge detector
±2.5%
Excess discharge-current detector ±20mV
Excess charge-current detector ±30mV
• Variety of detector threshold......................Over-charge detector threshold
4.0V to 4.5V step of 0.005V
Over-discharge detector threshold 2.0V to 3.0V step of 0.005V
Excess discharge-current threshold 0.05V to 0.4V step of 0.005V
Excess charge-current threshold Fixed at -0.1V
• Internal fixed Output delay time.................... Over-charge detector Output Delay 250ms/1s/5s
(Select among the options) .......................... Over-discharge detector Output Delay 20ms
Excess discharge-current detector Output Delay 6ms/12ms
Short Circuit detector Output Delay 400µs
Excess charge-current detector Output Delay 8ms/16ms/1s
• DS pin........................................................... At VDD level, Output Delay time of all items except short-circuit
can be reduced. (Delay Time for over-charge becomes about
1/90 of normal state.) At the specified middle range level,
delay circuit is disabled.
• 0V-battery charge option ..............................acceptable/unacceptable
• With Latch function after over-charge detect
• Ultra Small package .....................................SOT-23-6 / SON-6
APPLICATIONS
• Li+ / Li Polymer protector of over-charge, over-discharge, excess-current for battery pack
• High precision protectors for cell-phones and any other gadgets using on board Li+ / Li Polymer battery
2
R5426x
BLOCK DIAGRAM
V
DD
DS
Oscillator
Counter
-
Logic
Circuit
Level
Shift
+
+
-
VD1
VD2
Short
Detector
Delay
+
-
VD4
Logic
Circuit
+
-
VD3
V
SS
DOUT
COUT V-
SELECTION GUIDE
In the R5426x Series four of the input threshold for over-charge, over-discharge, excess discharge current,
and excess charge current detectors, package type can be designated.
Part Number is designated as follows:
R5426xxxxxx-xx ←Part Number
↑ ↑ ↑↑
↑
a b cd
e
Code
Contents
Package Type
N: SOT-23-6 D: SON6
a
Serial Number for the R5426 Series designating input four threshold for over-charge,
over-discharge, excess discharge-current, and excess charge-current detectors.
b
c
Designation of Output delay option of over-charge, excess charge-current, and excess
discharge-current.
d
e
Designation of version symbols
Taping Type: TR (refer to Taping Specification)
3
R5426x
PIN CONFIGURATIONS
SOT-23-6
SON-6
6
5
4
1
2
3
6
5
4
(mark side)
(mark side)
1
2
3
PIN DESCRIPTION
Pin No
Symbol
Description
SOT-23-6
SON-6
1
2
3
4
5
6
1
6
5
4
2
3
DOUT
Output of over-discharge detection, CMOS output
Pin for charger negative input
V-
COUT
DS
Output of over-charge detection, CMOS output
Pin for reduce pre-set output delay time
Power supply pin, the substrate voltage level of the IC.
Ground pin for the IC
VDD
VSS
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
Unit
VDD
Supply voltage
-0.3 to 12
V
Input Voltage
V- pin
DS pin
V-
VDS
VDD -28 to VDD +0.3
VSS -0.3 to VDD +0.3
V
V
Output voltage
COUT pin
DOUT pin
VCOUT
VDOUT
VDD -28 to VDD +0.3
VSS -0.3 to VDD +0.3
V
V
PD
Power dissipation
150
mW
°C
Topt
Tstg
Operating temperature range
Storage temperature range
-40 to 85
-55 to 125
°C
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum ratings are threshold limit values that must not be exceeded ever for an instant under
any conditions. Moreover, such values for any two items must not be reached simultaneously. Operation
above these absolute maximum ratings may cause degradation or permanent damage to the device. These
are stress ratings only and do not necessarily imply functional operation below these limits.
4
R5426x
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, Topt=25°C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit
VDD1
Operating input voltage
Minimum operating
Voltage defined as VDD-VSS
1.5
5.0
V
Voltage defined as VDD-V-
VDD-VSS=0V
Vst
Voltagefor 0V charging
1.5
1.4
V
V
*Note 1
Maximum Battery
Voltage level of low
voltage battery charge
inhibitory circuit *Note 2
Voltage defined as VDD-VSS
VDD-V-=4V
Vnochg
VDET1
0.6
1.0
Detect rising edge of supply voltage
R1=330Ω
VDET1-0.025
VDET1-0.030
VDET1+0.025
VDET1+0.030
Over-charge threshold
VDET1
VDET1
V
V
R1=330Ω (Topt=-5 to 55°C)*Note3
Output delay of over-charge
tVDET1
tVREL1
VDD=3.6V to 4.4V
tVDET1
16
s
tVDET1×0.7
tVDET1×1.3
Output delay of release
from over-charge
VDD=4V, V-=0V to 1V
11
21
ms
VDET2
×0.975
VDET2
×1.025
Detect falling edge of supply
voltage
VDET2
tVDET2
tVREL2
VDET3
Over-discharge threshold
VDET2
20
V
ms
ms
V
Output delay of
over-discharge
VDD=3.6V to 2.2V
14
26
Output delay of release
from over-discharge
VDD=3V V-=3V to 0V
0.7
1.2
1.7
Excess discharge-
current threshold
Detect rising edge of ‘V-‘ pin
voltage
VDET3
+0.020
VDET3
+0.020
VDET3
VDD=3.0V,V-=01V to 1V
Output delay of excess
discharge-current
tVDET3
6ms type
12ms type
4
8
6
12
8
16
ms
Output delay of release
from excess discharge-
current
tVREL3
VDET4
VDD=3.0V, V-=3V to 0V
0.7
1.2
1.7
ms
V
Excess charge-current
threshold
Detect falling edge of 'V-' pin
voltage
-0.13
-0.10
-0.07
VDD=3.0V V-=0V to -1V
Output delay of excess
charge-current
8ms type
16ms type
1000ms type
5
11
700
8
16
1000
11
21
1300
tVDET4
ms
ms
Output delay of release
from excess charge-
current
tVREL4
VDD=3.0V, V-=-1V to 0V
0.7
1.2
1.7
Vshort
Tshort
Short protection voltage
VDD=3.0V
VDD-1.4
250
VDD-1.1
400
VDD-0.8
600
mA
µs
Output Delay of Short
protection
VDD=3.0V, V-=0V to 3V
Reset resistance for
Excess discharge-
Current protection
Rshort
VDD=3.6V, V-=1V
VDD=3.6V to 4.4V
15
30
45
kΩ
V
V
VIH
VIM
DS pin "H" input voltage
DS pin "M" input voltage
VDD-0.5
1.2
VDD+0.3
VDD-1.1
5
R5426x
Symbol
Item
Conditions
Min.
Typ.
Max.
2.5
Unit
DS pin pull-down
resistance
RDS
VDD=3.6V
0.5
1.3
MΩ
VOL1
VOH1
VOL2
VOH2
IDD
Nch ON voltage of COUT
Pch ON voltage of COUT
Nch ON voltage of DOUT
Pch ON voltage of DOUT
Supply current
Iol=50µA, VDD=4.5V
Ioh=-50µA, VDD=3.9V
Iol=50µA, VDD=2.0V
Ioh=-50µA, VDD=3.9V
VDD=3.9V, V- =0V
VDD=2.0V
0.4
3.7
0.2
3.7
3.0
0.5
V
V
3.4
3.4
0.5
V
V
6.0
0.1
µA
µA
IS
Standby current
∗Note1: Specified for A version
∗Note2: Specified for B version
∗Note3: We compensate for this characteristic related to temperature by laser-trim, however, this specification
is guaranteed by design, not production tested.
OPERATION
• VD1 / Over-Charge Detector
The VD1 monitors VDD pin voltage while charge the battery pack. When the VDD voltage crosses over-charge
detector threshold VDET1 from a low value to a value higher than the VDET1, the VD1 can sense a over-charging
and an external charge control Nch MOSFET turns off with COUT pin being at "L" level.
To reset the VD1 making the COUT pin level to "H" again after detecting over-charge, in such conditions that a
time when the VDD voltage is down to a level lower than over-charge voltage.
Connecting a kind of loading to VDD after disconnecting a charger from the battery pack when the VDD voltage
is lower than Over-charge detector threshold, VD1 can be reset. Output voltage of COUT pin becomes "H", and it
makes an external Nch MOSFET turn on, and charge cycle is available. In other words, once over-charge is
detected, even the supply voltage becomes low enough, if a charger is continue to be connected to the battery
pack, recharge is not possible. Therefore this over-charge detector has no hysteresis. To judge whether or not
load is connected, Excess-discharge current detector is used. In other words, by connecting some load, V- pin
voltage becomes equal or more than Excess-discharge current detector threshold, and reset Over-charge
detecting state.
After detecting over-charge with the VDD voltage of higher than VDET1, connecting system load to the battery
pack makes load current allowable through parasitic diode of external charge control FET.
The COUT level would be "H" when the VDD level is down to a level below the VDET1 by continuous drawing of
load current.
Internal fixed output delay times for over-charge detection and release from over-charge exist. Even when the
VDD level becomes a higher level than VDET1 if the VDD voltage would be back to a level lower than the VDET1
within a time period of the output delay time, VD1 would not output a signal for turning off the charge control FET.
Besides, after detecting over-charge, while the VDD is lower than over-charge detector, even if a charger is
removed and connected a load, when the voltage is recovered within output delay time of release from
over-charge, over-charge state is not released.
A level shifter incorporated in a buffer driver for the COUT pin makes the "L" level of COUT pin to the V - pin
voltage and the "H" level of COUT pin is set to VDD voltage with CMOS buffer.
6
R5426x
• VD2 / Over-Discharge Detector
The VD2 is monitoring a VDD pin voltage. When the VDD voltage crosses the over-discharge detector threshold
VDET2 from a high value to a value lower than the VDET2, the VD2 can sense an over-discharging and the external
discharge control Nch MOSFET turns off with the DOUT pin being at "L" level.
To reset the VD2 with the DOUT pin level being "H" again after detecting over discharge, it is necessary to
connect a charger to the battery pack. When the VDD voltage stays under over-discharge detector threshold VDET2,
charge-current can flow through parasitic diode of an external discharge control MOSFET, then after the VDD
voltage comes up to a value larger than VDET2, then, DOUT becomes "H" and discharging process would be able to
advance through ON state MOSFET for discharge control.
Connecting a charger to the battery pack makes the DOUT level being "H" instantaneously when the VDD voltage
is higher than VDET2.
• When a cell voltage equals to zero, operation varies and depends on the mask version.
A version: the voltage of a charger is equal or more than 0V-charge minimum voltage (Vst), COUT pin becomes
"H" and system allowable to charge
B Version: when the VDD pin voltage is equal or lower than charge inhibitory maximum voltage (Vnochg), even a
charger is connected to a battery pack, COUT pin is stacked at "L" and charge current cannot flow.
An output delay time for over-discharge detection is fixed internally. When the VDD level is down to a lower
level than VDET2 if the VDD voltage would be back to a level higher than the VDET2 within a time period of the output
delay time, VD2 would not output a signal for turning off the discharge control FET. Output delay time for release
from over-discharge is also set typically at 1.2ms.
After detecting of over-discharge by VD2, supply current would be reduced to maximum 0.1µA at VDD=2.0V
and be into standby by halting all circuits and consumption current of IC itself is minimized.
The output type of DOUT pin is CMOS having "H" level of VDD and "L" level of VSS.
• VD3 /Excess discharge-current Detector, Short Circuit Protector
Both of the excess current detector and short circuit protection can work when the both of control FETs are in
"ON" state.
When the V- pin voltage is up to a value between the short protection voltage Vshort (Typically VDD-1.1V) and
excess discharge-current threshold VDET3, VD3 operates and further soaring of V- pin voltage higher than Vshort
makes the short circuit protector enabled. This leads the external discharge control Nch MOSFET turns off with
the DOUT pin being at "L" level.
An output delay time for the excess discharge-current detector is internally fixed.
A quick recovery of V- pin level from a value between Vshort and VDET3 within the delay time keeps the
discharge control FET staying "H" state. Output delay time for Release from excess discharge-current detection
is also set at typically 1.2ms.
When the short circuit protector is enabled, the DOUT would be "L" and its delay time would be typically 400µs.
The V - pin has a built-in pulled down resistor, typically 30kW, with connecting to the VSS pin.
After an excess discharge-current or short circuit protection is detected, removing a cause of excess
discharge-current or external short circuit makes an external discharge control FET to an "ON" state
automatically with the V- pin level being down to the VSS level through built-in pulled down resistor. The reset
resistor of excess discharge-current is off at normal state. Only when detecting excess discharge-current or short
circuit, the resistor is on.
7
R5426x
Output delay time of excess discharge-current is set shorter than the delay time for over-discharge detector.
Therefore, if VDD voltage would be lower than VDET2 at the same time as the excess discharge-current is detected,
the R5426xxxxxx is at excess discharge-current detection mode. By disconnecting a load, VD3 is automatically
released from excess discharge-current.
• VD4/ Excess charge-current detector
When the battery pack is chargeable and discharge is also possible, VD4 senses V- pin voltage. For example,
if the battery pack is charged with an inappropriate charger, excess current flows, then the voltage of V- pin
becomes equal or less than excess charge-current detector threshold. Then, the output of COUT becomes "L",
and prevents from flowing excess current in the circuit by turning off the external Nch MOSFET.
Output delay of excess charge current is internally fixed. Even the voltage level of V- pin becomes equal or
lower than excess charge-current detector threshold, the voltage is higher than the VD4 threshold within the
delay time, excess-charge current state is not detected.
VD4 can be released with disconnecting a charger and setting a load.
• DS (Delay Shorten) function
Output delay time of over-charge, over-discharge, excess discharge-current, excess charge-current, and
release from those detecting modes can be shorter than those setting value by forcing VDD voltage to DS pin.
By forcing the specified middle range voltage to DS pin, Output Delay Circuit can be disabled. Therefore,
under this condition, when over-charge or excess charge current is detected, output level can be checked
without delay.
1.3MΩ pull-down resistor is connected between DS pin and VSS internally.
At the normal operation, DS pin should be at no connection state.
8
R5426x
TIMING CHART
1. Over-charge, Excess charge Current Operation
Excess
Charge
Current
Disconnect
Charger
+Connect Load
Connect
Charger
Connect
Load
Connect
Charger
Connect
Load
VDET1
VDD
t
VDD
V-
V
DET3
SS
DET4
V
V
t
tVDET1
tVDET1
tVDET4
VDD
COUT
tVREL1
tVREL1
tVREL4
V
-
t
Charge
Current
Charge/
Discharge
Current
0
t
Discharge
Current
9
R5426x
2. Over discharge, Excess discharge current, Short circuit operation
Excess
Discharge
Current
Connect
Charger
Short
Connect
Charger
Connect Load
Connect Load
Open
Open
V
DD
VDET2
t
V
DD
Vshort
V
-
VDET3
V
SS
VDET4
t
tVDET2
tshort
tVDET2
tVDET3
V
DD
DOUT
tVREL2
tVREL2
tVREL3
tVREL3
V
SS
t
Charge
Current
Charge/
Discharge
Current
0
t
Discharge
Current
10
R5426x
TYPICAL APPLICATION
+
R1 330Ω
V
DD DS
C1
V-
R5426
0.1µF
V
SS
DOUT
COUT
R2 1kΩ
–
APPLICATION HINTS
R1 and C1 will stabilize a supply voltage to the R5426xxxxxx. A recommended R1 value is less than 1kΩ.
A larger value of R1 leads higher detection voltage, makes some errors, because of shoot through current
flown in the R5426xxxxxx.
R1 and R2 can operate also as parts for current limit circuit against reverse charge or applying a charger with
excess charging voltage to the R5426xxxxxx, battery pack. Small value of R1 and R2 may cause over-power
consumption rating of power dissipation of the R5426xxxxx. Therefore, total value of 'R1+R2' should be equal or
more than 1kΩ.
On the other hand, if large value of R2 is set, release from over-discharge by connecting a charger might not
be possible. Recommended R2 value is equal or less than 30kΩ.
11
R5426x
TEST CIRCUITS
V
DD
VDD
V
D
OUT
OUT
V
V
V-
C
OUT
V-
C
OSCILLOSCOPE
V
SS
V
SS
A
C
E
B
D
F
V
DD
V
DD
V
V-
C
OUT
V-
DOUT
V
SS
V
SS
V
DD
V
DD
V-
DOUT
V-
DOUT
A
V
V
SS
VSS
V
DD
V
DD
DOUT
V-
V-
COUT
A
DS
V
V
V
SS
V
SS
G
H
A
COUT
V
DD
V
DD
COUT
V
A
V-
V-
V
V
SS
V
SS
I
J
12
R5426x
A
V
DD
VDD
DOUT
V
A
V-
DOUT
V-
V
V
SS
VSS
K
L
V
DD
A
V-
V
SS
M
Typical Characteristics were obtained with using those above circuits:
Test Circuit A: Typical characteristics 1) 2)
Test Circuit B: Typical characteristics 3) 4)
Test Circuit C: Typical characteristics 5)
Test Circuit D: Typical characteristics 6) 7)
Test Circuit E: Typical characteristics 8)
Test Circuit F: Typical characteristics 9) 10) 11) 12) 13) 14)
Test Circuit G: Typical characteristics 15) 16) 17)
Test Circuit H: Typical characteristics 18) 19) 20)
Test Circuit I:
Typical characteristics 21)
Test Circuit J: Typical characteristics 22)
Test Circuit K: Typical characteristics 23)
Test Circuit L: Typical characteristics 24)
Test Circuit M: Typical characteristics 25) 26)
13
R5426x
TYPICAL CHARACTERISTICS
Part1
1) Minimum Operating Voltage for 0V Cell Charging 2) Maximum Battery Voltage Level for Low Voltage
vs. Temperature
Battery Charge Inhibitory Circuit vs. Temperature
R5426x102CA
R5426x104BB
V
DD-V
SS=0V
VDD-V-=4V
2
2
1.8
1.6
1.4
1.2
1
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0.8
0.6
0.4
0.2
0
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
Temperature Topt(°C)
Temperature Topt(°C)
3) Over-Charge Threshold vs. Temperature
4) Output Delay of Over-charge vs. Temperature
R5426x102CA
R5426x102CA
4.37
1.8
1.6
1.4
4.36
4.35
4.34
4.33
4.32
4.31
4.30
1.2
1
0.8
0.6
0.4
0.2
0
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
Temperature Topt(°C)
Temperature Topt(°C)
5) Output Delay of Release from Over-charge vs.
6) Over discharge Threshold vs. Temperature
Temperature
R5426x102CA
30
R5426x102CA
2.53
2.52
2.51
2.50
2.49
2.48
25
20
15
10
5
2.47
2.46
0
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
Temperature Topt(°C)
Temperature Topt(°C)
14
R5426x
7) Output Delay of Over-discharge vs. Temperature
8) Output Delay of Release from Over-discharge vs.
Temperature
R5426x102CA
1.8
R5426x102CA
35
1.6
1.4
30
25
20
15
10
1.2
1
0.8
0.6
0.4
0.2
0
5
0
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
Temperature Topt(°C)
Temperature Topt(°C)
9) Excess Discharge-current Threshold vs.
10) Output Delay of Excess Discharge-current vs.
Temperature
R5426x102CA
0.210
Temperature
R5426x102CA
18
16
14
0.205
0.200
0.195
0.190
12
10
8
6
4
2
0
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
Temperature Topt(°C)
Temperature Topt(°C)
11) Output Delay of Release from Excess Dicharge-
current vs. Temperature
12) Short Protection Voltage vs. Temperature
R5426x102CA
R5426x102CA
V
DD=3.0V
1.8
1.6
1.4
2.20
2.15
2.10
2.05
2.00
1.95
1.90
1.85
1.80
1.2
1.0
0.8
0.6
0.4
0.2
0
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
Temperature Topt(°C)
Temperature Topt(°C)
15
R5426x
13) Output Delay of Short Protection vs. Temperature 14) Reset Resistance for Excess Discharge
current Protection vs. Temperature
R5426x102CA
R5426x102CA
V
DD=3.6V
700
50
600
500
400
300
200
40
30
20
10
0
100
0
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
Temperature Topt(°C)
Temperature Topt(°C)
15) Excess Charge-current Threshold vs.
16) Output Delay of Excess Charge-current vs.
Temperature
R5426x102CA
-0.110
Temperature
R5426x102CA
30
25
20
15
10
5
-0.105
-0.100
-0.095
-0.090
0
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
Temperature Topt(°C)
Temperature Topt(°C)
17) Output Delay of Release from Excess
Charge-current vs. Temperature
R5426x102CA
18) DS pin “H” Input Minimum
Voltage vs. Temperature
R5426x102CA
V
DD=3V
1.8
1.6
1.4
3.0
2.5
2.0
1.5
1.0
1.2
1.0
0.8
0.6
0.4
0.2
0
0.5
0
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
Temperature Topt(°C)
Temperature Topt(°C)
16
R5426x
19) DS pin “M” Input Minimum Voltage vs.
Temperature
20) DS pin Pull-down Resistance vs. Temperature
R5426x102CA
R5426x102CA
V
DD=3.6V to 4.4V
V
DD=3.6V
3.0
2.5
2.5
2.0
1.5
1.0
0.5
0
2.0
1.5
1.0
0.5
0
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
Temperature Topt(°C)
Temperature Topt(°C)
21) Nch ON Voltage of COUT vs. Temperature
22) Pch ON Voltage of COUT vs. Temperature
R5426x102CA
R5426x102CA
I
OH=-50µA, VDD=3.9V
I
OL=50µA, VDD=4.5V
0.5
3.9
0.4
0.3
0.2
0.1
0
3.8
3.7
3.6
3.5
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
Temperature Topt(°C)
Temperature Topt(°C)
23) Nch ON Voltage of DOUT vs. Temperature
24) Pch ON Voltage of DOUT vs. Temperature
R5426x102CA
R5426x102CA
I
OL=50µA, VDD=2.0V
IOH=-50µA, VDD=3.9V
0.4
0.3
0.2
0.1
0
3.9
3.8
3.7
3.6
3.5
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
Temperature Topt(°C)
Temperature Topt(°C)
17
R5426x
25) Supply Current vs. Temperature
26) Standby Current vs. Temperature
R5426x102CA
R5426x102CA
V
DD=3.9V, V-=0V
V
DD=2.0V
6
5
0.10
0.08
0.06
0.04
0.02
0
4
3
2
1
0
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
Temperature Topt(°C)
Temperature Topt(°C)
Part 2
Delay Time dependence on VDD
1) Delay Time for Over-charge detect vs. VDD
2) Delay Time for Release from Over-charge vs. VDD
R5426x113CA
R5426x113CA
V-=0V, VDD=3.6V to 4.4V, 5.0V, 5.6V
VDD=3.2V, 3.7V, 4.2V, V-=0V to 1V
1.2
18
16
14
1
0.8
0.6
0.4
0.2
0
12
10
8
6
4
2
0
3.0
4.0
4.5
5.0
5.5
6.0
3.5
4.0
4.5
V
DD(V)
VDD(V)
3) Output Delay of Over-discharge detect vs. VDD
4) Output Delay for Release from
Over-discharge vs. VDD
R5426x113CA
R5426x113CA
V-=0V, VDD=3.6V to 2.2V, 2.0V, 1.5V
V-=0V, VDD=2.2V to 2.4V, 3.3V, 4.2V
22
1.4
20
18
16
14
12
10
8
1.2
1
0.8
0.6
0.4
6
4
2
0.2
0
0
1.0
1.5
2.0
2.5
2.0
2.5
3.0
3.5
4.0
4.5
V
DD(V)
V
DD(V)
18
R5426x
5) Output Delay for Excess Current during
Discharge vs. VDD
6) Output Delay for Release from Excess Discharge
Current Detect vs. VDD
R5426x113CA
R5426x113CA
V
DD=2.4V, 3.3V, 4.2V,
VDD=2.4V, 3.3V, 4.2V, V-=0V to 1V
V-=2.4V, 3.3V, 4.2V to 0V
14
1.4
12
10
8
1.2
1
0.8
0.6
0.4
6
4
2
0
0.2
0
2.0
2.5
3.0
3.5
4.0
4.5
2.0
2.5
3.0
3.5
4.0
4.5
V
DD(V)
V
DD(V)
7) Delay Time for Excess Charge Current Detect
8) Delay Time for release from Excess charge
current detect vs. VDD
vs. VDD
R5426x103CA
R5426x103CA
V
DD=2.4V, 3.3V, 4.2V, V-=0V to -1V
V
DD=2.4V, 3.3V, 4.2V, V-=-1V to 0V
18
16
14
1.4
1.2
1
12
10
8
0.8
0.6
0.4
6
4
0.2
0
2
0
2.0
2.5
3.0
3.5
4.0
4.5
2.0
2.5
3.0
3.5
4.0
4.5
V
DD(V)
V
DD(V)
9) Output Delay for Short vs. VDD
R5426x103CA
VDD=2.4V, 3.3V, 4.2V,
V-=0V to 2.4V, 3.3V, 4.2V
700
600
500
400
300
200
100
0
2
2.5
3
3.5
4
4.5
VDD(V)
19
R5426x
Part 3
Supply Current dependence on VDD
Test Circuit
+
R1 330Ω
A
V
DD DS
C1
R5426N113CA V-
0.1µF
V
SS DOUT COUT
1kΩ
R2
–
Si9926
Supply Current vs. VDD
5
4
3
2
1
0
0
1
2
3
4
5
V
DD(V)
20
R5426x
Part 4
Over-charge detector, Release voltage from Over-charge, Over-discharge detector, Release voltage
from Over-discharge dependence on External Resistance value
Test Circuit
+
R1
V
DD DS
C1
R5426N113CA V-
0.1µF
V
SS DOUT COUT
1kΩ
R2
–
Si9926
Over-discharge Detector Threshold / Released Voltage from Over-discharge vs. R1
2.327
2.326
Over-discharge Threshold
2.325
Release Threshold from
Over-discharge
2.324
2.323
2.322
2.321
2.32
2.319
2.318
2.317
2.316
0
100
200
300
400
500
600
700
800
900
1000
R1(Ω)
Over-charge / Released from Over-charge Threshold vs. R1
4.294
4.293
4.292
4.291
4.29
Over-charge Threshold
Release Threshold from
Over-charge
4.289
4.288
0
100
200
300
400
500
600
700
800
900
1000
R1(Ω)
21
R5426x
Part 5
Charger Voltage at Released from Over-discharge with a Charger dependence on R2
Test Circuit
R1 330Ω
V
DD DS
C1
R5426N113CA
V-
0.1µF
4.25V
V
SS
DOUT
COUT
R2
Si9926
Charger Voltage at Release from Over-discharge with a charger vs. R2
V
DD=4.25V
2.5
2
1.5
1
0.5
0
0
50
100
150
200
250
300
R2(kΩ)
22
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