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參數(shù)資料
型號: TPS65950ZXNT
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA209
封裝: 7 X 7 MM, 0.40 MM PITCH, PLASTIC, BGA-209
文件頁數(shù): 31/167頁
文件大?。?/td> 2566K
代理商: TPS65950ZXNT
TPS65950
Integrated Power Management/Audio Codec
SWCS032 – OCTOBER 2008
www.ti.com
Table 8-4. Precharge Detection Characteristics (continued)
Symbol
Parameter
Comments
Min(1) Max(2)
Unit
TDMOD_DELAY
Time pulling down DM line
19.5
s
TCHECK
Repeat time check process
500
ms
TPULSE
DP pullup pulse width
20
ms
In main charge, the basic chargers and basic carkits indicate their default current limit, versus the value of
the ID resistor, between the ID pin and the ground, and also versus the data bus D
± connection type
(shorted or not shorted).
Table 8-5 lists the output current limit ranges according to the device type and parameters.
Table 8-5. Main Charge Current Limit Indication
Parameter
Output Current Limit
Output
ID Pin Current
Device Type
ID Resistor
ID Pin
Voltage
D+/D– Connection(1)
Limit
Min(2)
Max(3)
Unit
(1%)
State
(nom)
Implemented
Phone-powered
102k
N/A(4)
Not shorted
N/A
accessory
Low
N/A
450
650
200k
5.0 V
Shorted
High
No
450
650
mA
High
Yes
750
950
Charger 5-wire
Low
N/A
750
950
5.0 V
Shorted
mA
440k
High
No
750
950
4.5 V
Shorted
High
Yes
1.8
3.0(5)
A
Used for
200k
5.0 V
D-high
N/A
450
650
muting
Basic carkit 5-wire
mA
Used for
440k
5.0 V
D-high
N/A
750
950
muting
Smart carkit 5-wire
N/A
5.0 V
D-high
N/A
0.450
3.0(5)
A
Carkit 4-wire
N/A
5.0 V
D-high
N/A
0.450
3.0(5)
A
(1)
Shorted indicates that D+ (DP) is shorted to D– (DM).
(2)
Min = Minimum value
(3)
Max = Maximum value
(4)
N/A = Not applicable
(5)
The maximum current limit in this configuration is for safety. It does not indicate normal current loads for the phone.
126
Battery Interface
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