LTC1142/LTC1142L/LTC1142HV
The
q
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
10
= V
24
= 10V, V
SHDN
= 0V unless otherwise noted.
SYMBOL
PARAMETER
Input DC Supply Current (Note 3)
Normal Mode
Sleep Mode
Shutdown
Input DC Supply Current (Note 3)
Normal Mode
Sleep Mode
Shutdown
V
1
– V
28
V
15
– V
14
Current Sense Threshold Voltage
CONDITIONS
LTC1142HV, LTC1142HV-ADJ
4V < V
10
, V
24
< 18V
4V < V
24
< 18V, 6V < V
10
< 18V
V
SD1
= V
SD2
= 2.1V, 4V < V
10
, V
24
< 18V
LTC1142L-ADJ (Note 6)
3.5V < V
10
, V
24
< 12V
3.5V < V
10
, V
24
< 12V
V
SD1
= V
SD2
= 2.1V, 3.5V < V
10
, V
24
< 12V
LTC1142HV-ADJ, LTC1142L-ADJ
V
14
= V
28
= V
OUT
+ 100mV, V
2
= V
16
= V
REF
+ 25mV
V
14
= V
28
= V
OUT
– 100mV, V
2
= V
16
= V
REF
– 25mV
LTC1142, LTC1142HV
V
28
= V
OUT
+ 100mV (Forced)
V
28
= V
OUT
– 100mV (Forced)
LTC1142, LTC1142HV
V
14
= V
OUT
+ 100mV (Forced)
V
14
= V
OUT
– 100mV (Forced)
V
SHDN
I
SHDN
I
11
, I
24
t
OFF
t
r
, t
f
Shutdown Pin Threshold
Shutdown Pin Input Current
C
T
Pin Discharge Current
Off-Time (Note 4)
Driver Output Transition Times
0V < V
SHDN
< 8V, V
10
, V
24
= 16V
V
OUT
in Regulation, V
SENSE –
= V
OUT
V
OUT
= 0V
C
T
= 390pF, I
LOAD
= 700mA
C
L
= 3000pF (Pins 6, 9, 20, 23), V
10
, V
24
= 6V
50
4
MIN
TYP
1.6
160
10
1.6
160
10
25
150
25
150
25
150
0.8
1.2
70
2
5
100
MAX
2.3
250
22
2.1
230
20
UNITS
mA
µA
µA
mA
µA
µA
mV
mV
mV
mV
mV
mV
V
µA
µA
µA
µs
ns
ELECTRICAL CHARACTERISTICS
q
130
170
q
130
170
q
130
0.5
170
2
5
90
10
6
200
– 40°C
≤
T
A
≤
85°C (Note 5), V
10
= V
24
= 10V, unless otherwise noted.
SYMBOL
V
2
, V
16
I
2
, I
16
V
OUT
PARAMETER
Feedback Voltage
Feedback Current
Regulated Output Voltage
3.3V Output
5V Output
Input DC Supply Current (Note 3)
Normal Mode
Sleep Mode
Shutdown
Input DC Supply Current (Note 3)
Normal Mode
Sleep Mode
Shutdown
Input DC Supply Current (Note 3)
Normal Mode
Sleep Mode
Shutdown
V
1
– V
28
V
15
– V
14
Current Sense Threshold Voltage
CONDITIONS
LTC1142HV-ADJ Only: V
10
, V
24
= 9V
LTC1142HV-ADJ Only
LTC1142, LTC1142HV
I
LOAD
= 700mA, V
24
= 9V
I
LOAD
= 700mA, V
10
= 9V
LTC1142
4V < V
10
, V
24
< 12V
4V < V
24
< 12V, 6V < V
10
< 12V
V
SHDN
= 2.1V, 4V < V
10
, V
24
< 12V
LTC1142HV-ADJ, LTC1142HV
4V < V
10
, V
24
< 18V
4V < V
24
< 18V, 6V < V
10
< 18V
V
SHDN
= 2.1V, 4V < V
10
, V
24
< 12V
LTC1142L-ADJ (Note 6)
3.5V < V
10
, V
24
< 12V
3.5V < V
10
, V
24
< 12V
V
SD1
= V
SD2
= 2.1V, 3.5V < V
10
, V
24
< 12V
LTC1142HV-ADJ, LTC1142L-ADJ
V
14
= V
28
= V
OUT
+ 100mV, V
2
= V
16
= V
REF
+ 25mV
V
14
= V
28
= V
OUT
– 100mV, V
2
= V
16
= V
REF
– 25mV
LTC1142, LTC1142HV
V
28
= V
OUT
+ 100mV (Forced)
V
28
= V
OUT
– 100mV (Forced)
3.17
4.85
MIN
1.21
TYP
1.25
0.2
3.33
5.05
1.6
160
10
1.6
160
10
1.6
160
10
25
150
25
150
MAX
1.29
1
3.43
5.20
2.4
260
22
2.6
280
24
2.4
260
22
UNITS
V
µA
V
V
mA
µA
µA
mA
µA
µA
mA
µA
µA
mV
mV
mV
mV
I
10
, I
24
125
175
125
175
3
LINER [ LINEAR TECHNOLOGY ]
