LT1182 LINER [Linear Technology], LT1182 Datasheet - Page 2

• Manufacturer Part Number: LT1182
• Description: CCFL/LCD Contrast Switching Regulators
• Manufacturer: LINER [Linear Technology]

PACKAGE/ORDER
DESCRIPTION
LT1182/LT1183/LT1184/LT1184F
LT1184/LT1184F pin out the reference for simplified pro-
gramming of lamp current.
The LT1182/LT1183/LT1184/LT1184F operate with input
supply voltages from 3V to 30V. The ICs also have a
battery supply voltage pin that operates from 4.5V to 30V.
The LT1182/LT1183 draw 9mA typical quiescent current
while the LT1184/LT1184F draw 6mA typical quiescent
2
ABSOLUTE
V
CCFL V
Shutdown ................................................................. 6V
I
DIO Input Current (Peak, < 100ms) .................... 100mA
LT1182: FBP, FBN, LT1183: FB Pin Current......... 2mA
Consult factory for Industrial and Military grade parts
CCFL
IN
, BAT, Royer, Bulb .............................................. 30V
SHUTDOWN
SHUTDOWN
CCFL PGND
CCFL PGND
LCD PGND
Input Current .............................................. 10mA
CCFL V
CCFL V
SW
LCD V
AGND
AGND
I
I
CCFL
CCFL
DIO
DIO
NC
NC
, LCD V
C
T
C
C
JMAX
T
JMAX
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
16-LEAD PLASTIC SO
16-LEAD PLASTIC SO
= 100 C,
= 100 C,
S PACKAGE
S PACKAGE
TOP VIEW
TOP VIEW
SW
W
MAXIMUM
U
............................................... 60V
JA
JA
= 100 C/W
= 100 C/W
16
15
14
13
12
11
10
16
15
14
13
12
11
10
9
9
W W
CCFL V
BULB
BAT
NC
V
REF
NC
NC
CCFL V
BULB
BAT
ROYER
V
FBP
FBN
LCD V
IN
INFORMATION
IN
U
SW
SW
SW
RATINGS
W
ORDER PART
ORDER PART
LT1184CS
LT1182CS
U
NUMBER
NUMBER
U
current. An active low shutdown pin typically reduces total
supply current to 35 A for standby operation. A 200kHz
switching frequency minimizes the size of required mag-
netic components. The use of current mode switching
techniques with cycle-by-cycle limiting gives high reliabil-
ity and simple loop frequency compensation. The LT1182/
LT1183/LT1184/LT1184F are all available in 16-pin nar-
row SO packages.
LT1183/LT1184/1184F: REF Pin Source Current .... 1mA
Junction Temperature (Note 1) ............................ 100 C
Operating Ambient Temperature Range ..... 0 C to 100 C
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
SHUTDOWN
SHUTDOWN
CCFL PGND
CCFL PGND
LCD PGND
CCFL V
CCFL V
LCD V
AGND
AGND
I
I
CCFL
CCFL
DIO
DIO
NC
NC
C
C
C
T
T
JMAX
JMAX
1
2
3
4
5
6
7
8
16-LEAD PLASTIC SO
1
2
3
4
5
6
7
8
16-LEAD PLASTIC SO
= 100 C,
= 100 C,
S PACKAGE
S PACKAGE
TOP VIEW
TOP VIEW
JA
JA
= 100 C/W
= 100 C/W
16
15
14
13
12
11
10
16
15
14
13
12
11
10
9
9
CCFL V
BULB
BAT
ROYER
V
REF
NC
NC
CCFL V
BULB
BAT
ROYER
V
REF
FB
LCD V
IN
IN
SW
SW
SW
ORDER PART
ORDER PART
LT1184FCS
LT1183CS
NUMBER
NUMBER