參數(shù)資料
型號: TPS60141PWPR
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 0.1 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20
封裝: GREEN, PLASTIC, HTSSOP-20
文件頁數(shù): 20/23頁
文件大?。?/td> 862K
代理商: TPS60141PWPR
TPS60140, TPS60141
LOW POWER DCDC CONVERTER
REGULATED 5 V, 100mA CHARGE PUMP VOLTAGE TRIPLER
SLVS273 FEBRUARY 2000
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
low-battery detector (TPS60140 only) (continued)
Formulas to calculate the resistive divider for low battery detection, with V(LBI) = 1.15 V to 1.27 V:
R2
+ 1M x
V
LBI
V
Bat
R1
+ 1M –R2
Formulas to calculate the minimum and maximum trip voltage:
V
trip(min) +
V
LBI(min)
R1
(min) )
R2
(max)
R2
(max)
V
trip(max) +
V
LBI(max)
R1
(max) )
R2
(min)
R2
(min)
Table 1. Recommended Values for the Resistive Divider From the E96 Series (
±1%)
VI/V
R1/k
R2/k
V(TRIP)MIN/V
V(TRIP)MAX/V
1.8
357
732
1.700
1.902
1.9
365
634
1.799
2.016
2.0
412
634
1.883
2.112
2.1
432
590
1.975
2.219
2.2
442
536
2.080
2.338
power-good detector (TPS60141)
The PG terminal is an open-drain output that is pulled low when the output is out of regulation. When the output
rises to typically 90% of its nominal voltage, the power-good output is released. Power-good is high impedance
in shutdown. In normal operation an external pullup resistor must be connected between PG and OUT. The
resistor should be in the 100 k
to 1 M range. If the power-good function is not used, the PG terminal should
remain unconnected.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range at IN to GND and PGND
0.3 V to 3.6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range, at OUT, ENABLE, LBI, LBO, PG, FB to GND and PGND
0.3 V to 5.4 V
. . . . . . . . . . . . . . . . . .
Voltage range at C1
+ TO GND
0.3 V to (VO + 0.3 V)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range at C1 TO GND
0.3 V to (VI + 0.3 V)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range at C2
+ TO GND
0.3 V to (VO + 0.3 V)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range at C2 TO GND
0.3 V to (VI + 0.3 V)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current
150 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
55
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum junction temperature, TJ
150
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
V(ENABLE), V(LBI), V(LBO), and V(PG) can exceed VI up to the maximum rated voltage without increasing the leakage current drawn
by these inputs.
(1)
(2)
(3)
(4)
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