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參數(shù)資料
| 型號： | T63H0006B-BX |
| 廠商： | TM Technology, Inc. |
| 英文描述： | Li-Ion Battery Protector |
| 中文描述： | 鋰離子電池保護器 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 52K |
| 代理商： | T63H0006B-BX |
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OPERATION
VD1/Over-Charge Detector
The VD1 monitors VDD pin voltage. 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-MOS-FET turns to
“OFF” with Cout pin being at “L” level.
There can be two cases to reset the VD1 making
the Cout pin level to “H” again after detecting
over-charge. Resetting the VD1 can make charging
system allowable to resumption of charging process.
The first case is in such conditions that a time when
the VDD voltage is coming down to a level lower
than “VREL1”. While in the second case,
connecting a kind of loading to VDD after
disconnecting a charger from the battery pack can
make the VD1 resetting when the VDD level is in
between “VDET1” and “VREL1”.
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 high when the
VDD level is coming down to a level below the
VDET1 by continuous drawing of load current.
When the VDD level is going up to 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.
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
T63H0006B
TM Technology Inc. reserves the right
P. 4
Publication Date: JUN. 2004
to change products or specifications without notice. Revision:B
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 MOSFT turns to “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 for
T63H0006B. When the VDD voltage stays under
over-discharge detector threshold VDET2 charge
current can flow through parasitic diode of external
discharge control MOSFET, then after the VDD
voltage comes up to a value larger than VDET2,
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.
Besides, for T63H0006B, when a cell voltage
reaches equal or more than over-discharge released
voltage, 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
FET.
After detection of an over-discharge by VD2,
supply current would be reduced to typ. 0.15uA 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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| T63H0006B-CX | Li-Ion Battery Protector |
| T63H0006B-DX | Li-Ion Battery Protector |
| T63H0006B | Li-Ion Battery Protector |
| T63H0008A | Li-Ion/Polymer Battery for one-cell Protector |
| T63H0008A-AX | Li-Ion/Polymer Battery for one-cell Protector |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| T63H0006B-CX | 制造商:TMT 制造商全稱:TMT 功能描述:Li-Ion Battery Protector |
| T63H0006B-DX | 制造商:TMT 制造商全稱:TMT 功能描述:Li-Ion Battery Protector |
| T63H0008A | 制造商:TMT 制造商全稱:TMT 功能描述:Li-Ion/Polymer Battery for one-cell Protector |
| T63H0008A-AX | 制造商:TMT 制造商全稱:TMT 功能描述:Li-Ion/Polymer Battery for one-cell Protector |
| T63H0008A-BX | 制造商:TMT 制造商全稱:TMT 功能描述:Li-Ion/Polymer Battery for one-cell Protector |
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