DS2712E+ Maxim Integrated Products, DS2712E+ Datasheet - Page 6
![IC NIMH CHARGER 16TSSOP](/photos/6/56/65666/175-16-tssop_sml.jpg)
DS2712E+
Manufacturer Part Number
DS2712E+
Description
IC NIMH CHARGER 16TSSOP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS2712Z.pdf
(15 pages)
Specifications of DS2712E+
Function
Charge Management
Battery Type
Nickel Metal Hydride (NiMH)
Voltage - Supply
4 V ~ 5.5 V
Operating Temperature
-20°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
16-TSSOP
Operating Supply Voltage
5.5 V
Supply Current
250 uA
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
- 20 C
Charge Safety Timers
Yes
Mounting Style
SMD/SMT
Temperature Monitoring
Yes
Uvlo Start Threshold
3.5 V
Uvlo Stop Threshold
40 mV
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Figure 2. STATE DIAGRAM
t < Fast Timeout
t < Topoff Timeout
VDD < VPOR -VHYS
(asynchronously from
anywhere)
t < PCTimeout
VBAT < 1V
OR
t < PCTimeout
VBAT > 1V
T < 50C
AND
AND
Standby power
t > Fast Timeout
LEDx = Hi-Z
12.5% Par., 25% Ser.
delta-V detect
CCx = Hi-Z
48% Par., 97% Ser.
POR
LEDx = Charging
LEDx = Charging
Topoff
CCx = Active
CCx = Active
CHG
CHG
Fast
OR
12.5% Par., 25% Ser.
PreCHG
LEDx = Charging
CCx = Active
PASS
VDD > VPOR (3.7V)
Cell Test
LEDx = Charging
32 clock
interval
CCx = Hi-Z
t > Topoff Timeout
OR VBAT > 1.75V
t > PCTimeout
VBAT < 1.65V
OR T > 50
OR T < 0
T > 50
OR
FAIL:
VON - VOFF > V
6 of 15
Presence
LEDx = No Battery
TEST
CCx = Hi-Z
VBAT > 1.75V
CTST
LEDx = Maintenance
CCx = Active 1/64
FAULT
Standby power
MAINT
LEDx = Fault
CCx = Hi-Z
VBAT > 1.75V
T > 50
VBAT > 1.75V
T > 45C
T < 0C
OR
OR
VBAT > 1.75V
(asynchronously
from anywhere)
t < 1s