LTC1473 LINER [Linear Technology], LTC1473 Datasheet - Page 4

• Manufacturer Part Number: LTC1473
• Description: Dual PowerPathTM Switch Driver
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFORMANCE CHARACTERISTICS
LTC1473
4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
– 50
– 50
Logic Input Threshold Voltage
vs Temperature
Turn-Off Delay and Gate Fall Time
vs Temperature
V
C
V
V
LOAD
SAB
+
+
– 25
– 25
= 20V
= 5V
= 20V
= 1000pF
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
8.5
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
25
25
– 50
Timer Source Current
vs Temperature
V
TIMER = 0V
GATE FALL
V
V
TURN-OFF
+
HIGH
LOW
50
50
– 25
TIME
DELAY
= 20V
75
75
0
TEMPERATURE ( C)
W
100
100
25
1473 G07
1473 G10
U
125
125
50
75
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
100
45
40
35
30
25
20
15
10
5
0
1473 G13
– 50
– 50
Turn-On Delay and Gate Rise Time
vs Temperature
Logic Input Threshold Voltage
vs Temperature
V
C
V
V
125
LOAD
SAB
+
+
– 25
– 25
= 20V
= 20V
= 0V
= 1000pF
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
25
25
V
V
HIGH
GATE RISE
50
LOW
50
TURN-ON
DELAY
TIME
75
75
100
100
–25
1473 G06
1473 G11
175
150
125
100
75
50
25
0
0
125
125
Sense Pin Source Current
I
BSENSE
2.5
vs V
5
1.28
1.26
1.24
1.22
1.20
1.18
1.16
1.14
1.12
1.10
40
35
30
25
20
15
10
5
0
SENSE
7.5
– 50
10
V
Rise and Fall Time
vs Gate Capacitive Loading
Timer Latch Threshold Voltage
vs Temperature
SENSE
V
V
V
V
V
+
DIODE
IN2
SENSE +
+
10
– 25
= 20V
= 20V
= 0V
GATE CAPACITIVE LOADING (pF)
(V)
12.5
= V
– V
0
IN1
TEMPERATURE ( C)
100
SENSE –
15
= 5V
V
RISE TIME
FALL TIME
V
SAB
25
SAB
17.5
1473 • TPC14
= 0V
= 20V
= 0V
50
20
1000
75
100
1473 G12
1473 G08
10000
125