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參數(shù)資料
| 型號(hào)： | T63H0002A-DX |
| 廠商： | TM Technology, Inc. |
| 英文描述： | T63H0002A |
| 中文描述： | T63H0002A |
| 文件頁(yè)數(shù)： | 6/8頁(yè) |
| 文件大?。?/td> | 165K |
| 代理商： | T63H0002A-DX |
TE
CH
tm
T63H0002A
TM Technology Inc. reserves the right
P. 6
Publication Date: JUL. 2002
to change products or specifications without notice. Revision:A
or VDET2, over-discharge condition can be also
released.
An output delay time for the over-discharge
detection is fixed internally, tVDET2 =10ms typ. At
VDD=2.4V. When the VDD level is going 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
VD3/Excess Current Detector, Short Circuit Protector
FET.
After detection of an over-discharge by VD2, supply
current would be reduced to typ. 0.3uA at
VDD=2.0V and into standby, only the charger
detector is operating.
The output type of Dout pin is CMOS having “H”
level of VDD and “L” level of Vss.
Both of the excess current detector and short circuit
protector can work when both control FETs are in
“ON” state.
When the V- pin voltage is going
up to a value between the short protection voltage
Vshort/VDD and excess current threshold VDET3,
the excess current detector 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 turn off
with the Dout pin being at “L” level.
An output delay time for the excess current detector
is internally fixed, 13ms typ. At VDD=3.0V. Aquick
recovery of V- pin level from a value between
Vshort and VDET3 within the delay time keeps the
discharge control FET staying “H” state.
When the short circuit protector is enabled, the Dout
would be low and its delay time would be 5us typ.
The V- pin has a built-in pulled down resistor, typ.
100kOhm with connecting to the Vss pin.
After an excess current or short circuit protection is
detected, removing a cause of excess 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
pulled down resistor built-in internally.
If VDD voltage would be higher than VDET2 at a
time when the excess current is detected the
T63H0002 does not enter a standby mode, or
otherwise in case of lower VDD voltage than
VDET2 would lead the T63H0002 into a standby.
After detecting short circuit the T63H0002 will not
enter a standby mode.
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