參數(shù)資料
型號(hào): TPS2345PWNRND
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24
封裝: GREEN, TSSOP-24
文件頁數(shù): 8/32頁
文件大?。?/td> 621K
代理商: TPS2345PWNRND
TPS2345
SLUS503B – MARCH 2002 – REVISED AUGUST 2002
16
www.ti.com
TYPICAL CHARACTERISTICS
–40
–15
10
35
60
85
1.4
1.6
1.8
2.0
2.2
2.4
Figure 13
IRAMP INPUT CURRENT
vs
AMBIENT TEMPERATURE
TA – Ambient Temperature – _C
I DSG
IRAMP
Input
Current
A
VI(IRAMP) = 0.5 V
Current Sink Mode
Figure 14
IRAMP MODE TRIP THRESHOLD
vs
AMBIENT TEMPERATURE
TA – Ambient Temperature – _C
V
TRIP
IRAMP
T
rip
Threshold
V
–40
–15
10
35
60
85
1.44
1.46
1.48
1.52
1.54
1.56
1.50
Figure 15
PRECHG OUTPUT VOLTAGE
vs
AMBIENT TEMPERATURE
TA – Ambient Temperature – _C
V
O(PCHG)
Output
V
o
ltage
V
–40
–15
10
35
60
85
0.0
0.2
0.4
0.6
0.8
1.2
1.0
IO(PRECHG)=5mA
IO(PRECHG) =–5mA
VI(VIN2) = 4 V
VI(VIN1) =VI(VIN3) =VI(VIN4) =0V
Figure 16
PRECHG OUTPUT VOLTAGE
vs
SUPPLY VOLTAGE
4.0
4.5
5.0
5.5
6.0
0.90
0.92
0.98
1.06
1.10
0.94
0.96
1.00
1.02
1.08
1.04
VI(VIN2) – Input Voltage – V
V
O(PCHG)
Output
V
o
ltage
V
VI(VIN3) = 3.3 V
VI(VIN1) = VI(VIN4) = FLOAT
TA = 25_C
IOUT = 5 mA
IOUT = –5 mA
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