LTC1473 LINER [Linear Technology], LTC1473 Datasheet - Page 2

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

ABSOLUTE
LTC1473
(Note 1)
DCIN, BAT1, BAT2 Supply Voltage .............. – 0.3 to 32V
SENSE
GA1, GB1, GA2, GB2 ................................... – 0.3 to 42V
SAB1, SAB2 ................................................. – 0.3 to 32V
SW, V
IN1, IN2, DIODE ........................................– 0.3V to 7.5V
Junction Temperature (Note 2) ............................. 125 C
Operating Temperature Range
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
ELECTRICAL CHARACTERISTICS
The
SYMBOL
V
I
V
V
V
V
V
I
V
V
I
I
V
I
I
V
t
t
t
t
f
Test circuit, V
2
S
IN
BSENSE
BSENSE
PDSAB
TIMER
OVGG
ON
OFF
D1
D2
HIDIGIN
GS
LODIGIN
GS(ON)
GS(OFF)
SENSE
TIMER
+
+
+
UVLO
UVLOHYS
Commercial ............................................. 0 C to 70 C
Industrial ........................................... – 40 C to 85 C
+
–
denotes specifications which apply over the full operating temperature range, otherwise specifications are T A = 25 C.
GG
+
, SENSE
...................................................... – 0.3 to 42V
PARAMETER
Supply Operating Range
Supply Current
V
V
V
Digital Input Logic High
Digital Input Logic Low
Input Current
Gate-to-Source ON Voltage
Gate-to-Source OFF Voltage
SENSE
SENSE
Inrush Current Limit Sense Voltage V
SAB1, SAB2 Pull-Down Current
Timer Source Current
Timer Latch Threshold Voltage
Gate Drive Rise Time
Gate Drive Fall Time
Gate Drive Turn-On Delay
Gate Drive Turn-Off Delay
V
GS
GG
+
+
+
= 20V, unless otherwise specified.
Undervoltage Lockout Threshold
Undervoltage Lockout Hysteresis
Gate Supply Voltage
Regulator Operating Frequency
+
–
–
, V
Input Bias Current
Input Bias Current
W
MAXIMUM
+
.................................. – 0.3 to 32V
W W
RATINGS
CONDITIONS
V
V
V
V
I
I
V
V
V
V
V
V
V
V
V
V
C
C
C
C
GA1
GA1
IN1
IN1
GS
SENSE
SENSE
SENSE
SENSE
SENSE
SENSE
IN1
IN1
IN1
SENSE
IN1
GS
GS
GS
GS
+
Ramping Down
= V
= 1000pF, V
= 1000pF, V
= 1000pF, V
= 1000pF, V
= I
= I
= V
= V
= V
= V
= 0.8V, V
= 0.8V, V
U
GA2
GA2
+
+
+
+
–
–
+
GG
IN2
DIODE
IN2
IN2
= V
= V
= V
= V
= 20V (V
= 0V (V
– V
– V
= I
= I
= V
= V
= 0.8V, V
SENSE
SENSE
SENSE
SENSE
SENSE
GB1
GB1
= 5V, V
IN2
IN2
+
DIODE
DIODE
SENSE
SAB1
SAB1
SAB1
SAB1
= V
= V
SENSE
= I
= I
–
–
–
–
–
= 20V
= 0V (Note 3)
= 20V
= 0V (Note 3)
= 300mV
= 5V
GB2
GB2
= 0.8V
DIODE
DIODE
DIODE
IN2
= V
= V
= V
= V
+
+
– V
= – 1 A, V
= 100 A, V
= 0V, V
– V
SAB2
SAB2
SAB2
SAB2
PACKAGE/ORDER
Consult factory for Military grade parts.
= 2V
= 2V, V
= 2V
SENSE
SENSE
= 0V (Note 4)
= 20V (Note 4)
= 0V (Note 4)
= 20V (Note 4)
SENSE
TIMER
DIODE
–
)
TIMER
GND
–
V
SAB1
16-LEAD NARROW PLASTIC SSOP
IN1
IN2
SW
)
SAB1
GG
V
+
T
+
JMAX
= V
1
2
3
4
5
6
7
8
= V
= 0V,
= V
= 125 C,
SENSE
SAB2
GN PACKAGE
SAB2
TOP VIEW
= 20V
–
= 20V
= 20V
JA
= 150 C/ W
16
15
14
13
12
11
10
9
GA1
SAB1
GB1
SENSE
SENSE
GA2
SAB2
GB2
– 300
– 300
4.75
0.75
0.15
0.10
MIN
7.5
2.7
5.0
1.1
+
–
30
2
2
2
5
3
INFORMATION
U
GN PART MARKING
– 160
– 160
0.20
0.20
TYP
100
200
8.5
3.1
1.6
1.5
5.7
4.5
4.5
5.5
1.2
20
33
22
30
ORDER PART
1
0
2
1
LTC1473CGN
LTC1473IGN
NUMBER
W
1473
1473I
– 100
– 100
MAX
1.25
0.25
0.30
200
300
9.5
3.5
0.8
7.0
0.4
6.5
6.5
1.3
30
30
8
1
UNITS
U
kHz
V
A
V
V
V
V
V
A
V
V
A
A
A
A
V
V
A
A
A
V
s
s
s
s