Features: · Supply current TYP. 5.0uA Low supply current
· Standby current (after detecting over-discharge) TYP. 0.3uA
· High accuracy detector
· Over-charge detector(Topt=25oC) +/- 25mV Threshold
· Over-charge detector (Topt=0 to 50oC) +/- 30mV
· Over-discharge detector +/- 2.5%
· Over-charge detector threshold 4.0V to 4.4V step of 0.005V Variety of detector threshold
· Over-discharge detector threshold 2.0V to 3.0V step of 0.005V
· Excess current protection 0.04V to 0.32V step of 0.04V Built in protection circuit
· Accuracy !à15 note1
· Output delay of over charge Time delay at C3=0.01uF & VDD=4.3V 170mS
· Output delay of over-discharg VDD=2.4V with built-in capacitor 10mS
· Small package SOT23-6/6-pin Pinout
Specifications
| Symbol |
Description |
Max |
Unit |
| VDD |
Supply voltage |
-0.3 to 20 |
V |
V-
Vct |
Input voltage
V- pin
Ct pin |
VDD-20 to VDD+0.3
Vss-0.3 toVDD+0.3
|
V |
Vcout
Vdout |
Output voltage
Cout pin
Dout pin |
VDD-20 to VDD+0.3
Vss-0.3 toVDD+0.3
|
V |
| PD |
Power dissipation |
150 |
mA |
| TSTG |
Storage Temperaturerange |
-55 to 125 |
°C |
| Topt |
Operating temperature range |
-40 to85 |
°C |
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.
DescriptionThe T63H0002A is protection IC for higher than VDET1, the output of Cout pin, the output of over-charge detector/VD1, switches to over-charge/discharge of rechargeable one-cell low level, charger!s negative pin level. After Lithium-ion(Li+) excess load current, further include a short circuit protector for preventing detecting over-charge the VD1 can be reset and large external short circuit current. the output of Cout becomes high when the VDD Each of these IC is composed of three voltage is coming down to a level lower than !°VREL1!±, or when a kind of loading i voltage detectors, a reference unit, a delay connected to VDD after a charger is circuit, a short circuit protector, and a logic disconnected from the battery pack while the circuit. When charging voltage crosses the VDD level is in between !°VDET1!± an detector threshold from a low value to value !°VREL1!± in the T63H0002A with Dout being enabled to low level. Once after The output of Dout pin, the output of detecting excess current, the VD3 is released over-discharge detector/VD2, switches to low and Dout level switches to high by detaching a battery pack from a load system. level after internally fixed delay time passed, when discharging voltage crosses the detector Further, short circuit protector makes Dout threshold from a high value lower than VDET2. level to low immediately with external short After T63H0002A detect the over-discharge circuit current and re-moving external short voltage, connect a charger to the battery pack, circuit leads Dout level to high. After detecting over-discharge, supply current will be kept and when the battery supply voltage becomes extremely low by halt some internal circuits higher than the over-discharge detector operation. The output delay of over-charge threshold, VD2 is released and the voltage of Dout becomes !°H!± level. detectors can be set by connecting external An excess load current can be sensed and capacitors. Output type of Cout and Dout are cut off after internally fixed delay time passed CMOS. 6-pin, SOT23-6 is available.
T63H0002A Data Sheet
