Datasheet
DS2711/DS2712: Loose-Cell NiMH Chargers
2 of 15
ABSOLUTE MAXIMUM RATINGS
Voltage Range on All Pins Relative to V
SS
……………………………………………………………………-0.3V to +6V
Voltage Range on DMSEL……………………………………………….……………………………………….V
DD
+ 0.3V
Continuous Sink Current CC1, CC2, LED1, LED2, and CSOUT………………………………............................20mA
Operating Temperature Range………………………………………………………………………………-40°C to +85°C
Storage Temperature Range……………………………………………………………………………….-55°C to +125°C
Lead Temperature (soldering, 10s) ................................................................................................................. +300°C
Soldering Temperature (reflow)
Lead(Pb)-free ............................................................................................................................................ +260°C
Containing lead(Pb) ................................................................................................................................... +240°C
This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation
sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.
RECOMMENDED DC OPERATING CONDITIONS
(4.0V ≤ V
DD
≤ 5.5V, T
A
= -20°C to +70°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage
V
DD
(Note 1)
4.0
5.5
V
Input Voltage Range
LED2, DMSEL
-0.3
+5.5
V
DC ELECTRICAL CHARACTERISTICS
(4.0V ≤ V
DD
≤ 5.5V, T
A
= -20°C to +70°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Current, V
DD
I
DD
Operating mode 250 500
µA
UVLO Threshold V
UVLO
V
DD
rising (Note 1) 3.5 3.9 V
UVLO Hysteresis V
UHYS
V
DD
falling from above
V
UVLO
40 mV
Output-Voltage Low,
CC1, CC2, LED1, LED2
V
OL1
V
DD
= 5.0V,
I
OL
= 20mA (Note 1)
1.0 V
Output-Voltage Low,
CSOUT
V
OL2
V
DD
= 5.0V,
I
OL
= 20mA (Note 1)
0.75 1.25 V
Leakage Current,
CC1, CC2, LED1, LED2,
CSOUT
I
LKG
V
DD
= 5.0V,
Output inactive
-1 +1
µA
Threshold Voltage,
-
∆
V Termination
V
-∆V
After t
THO
1.0 2.0 3.0 mV
Mode Test Current,
DMSEL, LED2
I
MTST
(Notes 2, 3) 5 15
µA
Input Logic-High,
DMSEL, LED2
V
IH
(Note 1)
V
DD
-
0.2
V
Input Logic-Low, DMSEL,
LED2
V
IL
(Note 1) 0.2 V
Input Leakage Current,
DMSEL
I
IL1
After power-up mode
select,
DMSEL = V
DD
or V
SS
-1 +1
µA
Threshold Voltage, Cell
Test
V
CTST
R
CTST
= 80kΩ
85 100 115 mV
Threshold Voltage, Cell
Voltage Low
V
BAT-LOW
CC1 = CC2 = high-Z
(Note 4)
0.9 1.0 1.1 V
Threshold Voltage, Cell
Voltage Max1
V
BAT-MAX1
CC1 = CC2 = high-Z
(Note 4)
1.55 1.65 1.75 V
Threshold Voltage, Cell
Voltage Max2
V
BAT-MAX2
CC1, CC2 active
(Note 4)
1.64 1.75 1.86 V
Threshold Voltage Delta V
BAT-MAXΔ
V
BAT-MAX2
- V
BAT-MAX1
(Note 5)
90 100 110 mV