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參數資料
| 型號： | LP3971SQX-B410 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS |
| 中文描述： | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC40 |
| 封裝： | 5 X 5 MM, LLP-40 |
| 文件頁數： | 10/42頁 |
| 文件大?。?/td> | 1350K |
| 代理商： | LP3971SQX-B410 |
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Back-Up Charger Electrical Characteristics
Unless otherwise noted, V
IN
= V
BATT
= 3.6V. Typical values and limits appearing in normal type apply for T
J
= 25C. Limits ap-
pearing in
boldface
type apply over the entire junction temperature range for operation, 40C to +125C. (Notes 2, 6) and
(Note 8).
Symbol
V
IN
I
OUT
Parameter
Conditions
Min
3.3
Typ
Max
5.5
Units
V
μA
Operational Voltage Range
Backup Battery Charging Current
Voltage at V
IN
V
IN
= 3.6V, Backup_Bat = 2.5V,
Backup Battery Charger Enabled
(Note 8)
V
IN
= 5.0V Backup Battery Charger
Enabled. Programmable
Backup_Bat = 0V, Backup Battery
Charger Enabled
I
OUT
≤
50 μA, V
OUT
= 3.15V
V
OUT
+ 0.4
≤
V
BATT
= V
IN
≤
5.0V
f
<
10 kHz
I
OUT
<
50 μA
0 μA
≤
I
OUT
≤
100 μA
190
V
OUT
Charger Termination Voltage
2.91
3.1
V
Backup Battery Charger Short
Circuit Current
Power Supply Ripple Rejection
Ratio
9
mA
PSRR
15
dB
I
Q
C
OUT
Quiescent Current
Output Capacitance
Output Capacitor ESR
25
0.1
μA
μF
M
5
500
Logic Inputs and Outputs DC Operating Conditions
(Note 2)
Logic Inputs (SYS_EN, PWR_EN, SYNC, nRSTI, PWR_ON, nTEST_JIG, SPARE and GPI’s)
Symbol
V
IL
V
IH
Parameter
Conditions
Min
Max
0.5
Units
V
V
Low Level Input Voltage
High Level Input Voltage
V
RTC
0.5V
1
I
LEAK
Logic Outputs (nRSTO, EXT_WAKEUP and GPO’s)
Input Leakage Current
+1
μA
Symbol
V
OL
V
OH
Parameter
Conditions
Min
Max
0.5
Units
V
V
Output Low Level
Output High Level
Load = +0.2 mA = I
OL
Max
Load = 0.1 mA = I
OL
Max
V
RTC
0.5V
I
LEAK
Logic Output (nBATT_FLT)
Output Leakage Current
V
ON
= V
IN
+5
μA
Symbol
Parameter
Conditions
Min
2.4
Typ
2.8
Max
3.4
Units
V
nBATT_FLT Threshold Voltage
Programmable via Serial Interface
Default = 2.8V
Load = +0.4 mA = I
OL
Max
Load = 0.2 mA = I
OH
Max
V
OL
V
OH
Output Low Level
Output High Level
0.5
V
V
V
RTC
0.5V
I
LEAK
Input Leakage Current
+5
μA
L
www.national.com
10
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LP3971SQX-B410/NOPB | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| LP3971SQX-B510/NOPB | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| LP3971SQX-D510 | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| LP3971SQX-D510/NOPB | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| LP3971SQX-F211 | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
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