TPS2346 Datasheet, PDF (16/29 Pages) Texas Instruments – OPTICAL NETWORK HOT SWAP POWER MANAGER

TPS2346
SLUS529 – MAY 2002
TYPICAL CHARACTERISTICS
IRAMP INPUT CURRENT
vs
AMBIENT TEMPERATURE
2.4
VI(IRAMP) = 0.5 V
Current Sink Mode
2.2
IRAMP MODE TRIP THRESHOLD
vs
AMBIENT TEMPERATURE
1.56
1.54
1.52
2.0
1.50
1.8
1.48
1.6
1.46
1.4
–40
–15
10
35
60
85
TA – Ambient Temperature – _C
Figure 13
1.44
–40
–15
10
35
60
85
TA – Ambient Temperature – _C
Figure 14
PRECHG OUTPUT VOLTAGE
vs
AMBIENT TEMPERATURE
1.2
PRECHG OUTPUT VOLTAGE
vs
SUPPLY VOLTAGE
1.10
1.0
1.08
IO(PRECHG) =5mA
1.06
0.8
IO(PRECHG) = –5 mA
1.04
IOUT = 5 mA
1.02
0.6
VI(VIN3) = 3.3 V
1.00 VI(VIN1) = VI(VIN4) = FLOAT
TA = 25_C
0.98
0.4
0.96
IOUT = –5 mA
0.2
VI(VIN2) = 4 V
0.94
VI(VIN1) = VI(VIN3) = VI(VIN4) = 0 V
0.92
0.0
–40
–15
10
35
60
85
0.90
4.0
4.5
5.0
5.5
6.0
TA – Ambient Temperature – _C
VI(VIN2) – Input Voltage – V
Figure 15
Figure 16
16
www.ti.com