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| 型號： | TPS65930A2ZCH |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PBGA139 |
| 封裝： | 10 X 10 MM, 0.65 MM PITCH, GREEN, PLASTIC, NFBGA-139 |
| 文件頁數(shù)： | 57/115頁 |
| 文件大小： | 1232K |
| 代理商： | TPS65930A2ZCH |
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SWCS037G
– MAY 2008 – REVISED APRIL 2011
Table 4-13. Backup Battery Charger Characteristics (continued)
Parameter
Test Conditions
Min
Typ
Max
Unit
Backup battery charging current
VBACKUP = 2.8 V, BBCHEN = 1, BBISEL = 00
10
25
45
μA
VBACKUP = 2.8 V, BBCHEN = 1, BBISEL = 01
105
150
270
μA
VBACKUP = 2.8 V, BBCHEN = 1, BBISEL = 10
350
500
900
μA
VBACKUP = 2.8 V, BBCHEN = 1, BBISEL = 11
0.7
1
1.8
mA
VBACKUP = 0 V, BBCHEN = 1, BBISEL = 00
17.5
25
45
μA
VBACKUP = 0 V, BBCHEN = 1, BBISEL = 01
105
150
270
μA
VBACKUP = 0 V, BBCHEN = 1, BBISEL = 10
350
500
900
μA
VBACKUP = 0 V, BBCHEN = 1, BBISEL = 11
0.7
1
1.8
mA
End backup battery charging voltage:
IVBACKUP = –10 μA, BBSEL = 00
2.4
2.5
2.6
V
VBBCHGEND
IVBACKUP = –10 μA, BBSEL = 01
2.9
3.0
3.1
V
IVBACKUP = –10 μA, BBSEL = 10
3.0
3.1
3.2
V
IVBACKUP = –10 μA, BBSEL = 11
3.1
3.2
3.3
V
4.3.2
Battery Monitoring and Threshold Detection
4.3.2.1
Power On/Power Off and Backup Conditions
Table 4-14 lists the threshold levels of the battery.
Table 4-14. Battery Threshold Levels
Parameter
Test Conditions
Min
Typ
Max
Unit
Main battery charged threshold
Measured on VBAT terminal
3.1
3.2
3.3
V
VMBCH
Main battery low threshold VMBLO
VBACKUP = 3.2 V, measured on VBAT terminal (monitored
2.55
2.7
2.85
V
on terminal ONNOFF)
Main battery high threshold VMBHI
Measured on terminal VBAT, VBACKUP = 0 V
2.5
2.65
2.95
V
Measured on terminal VBAT, VBACKUP = 3.2 V
2.5
2.85
2.95
Batteries not present threshold VBNPR Measured on terminal VBACKUP with VBAT
< 2.1 V
1.6
1.8
2.0
V
Measured on terminal VBAT with VBACKUP = 0 V
1.95
2.1
2.25
(monitored on terminal VRRTC)
4.3.3
VRRTC LDO Regulator
The VRRTC voltage regulator is a programmable, low dropout, linear voltage regulator supplying (1.5 V)
the embedded real-time clock (32.768-kHz oscillator) and dedicated I/Os of the digital host counterpart.
The VRRTC regulator is also the supply voltage of the power-management digital state-machine. The
VRRTC regulator is supplied from the UPR line, switched on by the main or backup battery, depending on
the system state. The VRRTC output is present as long as a valid energy source is present. The VRRTC
line is supplied by an LDO when VBAT
> 2.7, and a clamp circuit when in backup mode. Table 4-15
describes the regulator characteristics.
Table 4-15. VRRTC LDO Regulator Characteristics
Parameter
Test Conditions
Min
Typ
Max
Unit
Output Load Conditions
Filtering capacitor
Connected from VRTC.OUT to analog ground
0.3
1
2.7
μF
Filtering capacitor ESR
20
600
m
Electrical Characteristics
VIN
Input voltage
On mode
2.7
VBAT
4.5
V
VOUT
Output voltage
On mode
1.45
1.5
1.55
V
46
Power Module
Copyright
2008–2011, Texas Instruments Incorporated
focus.ti.com: TPS65930/TPS65920
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| TPS65930BZCHR | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Int Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| TPS65950A2ZXN | 功能描述:PMIC 解決方案 Integ Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
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