LT1786FCS#TRPBF Linear Technology, LT1786FCS#TRPBF Datasheet - Page 2

• Manufacturer Part Number: LT1786FCS#TRPBF
• Description: IC SW REG CCFL SMBUS PROG 16SOIC
• Manufacturer: Linear Technology

Specifications of LT1786FCS#TRPBF

• Applications: Converter, CCFL
• Voltage - Input: 4.5 ~ 30 V
• Number Of Outputs: 1
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -

ABSOLUTE AXI U RATI GS
LT1786F
(Note 1)
V
BAT, Royer, BULB .................................................. 30V
CCFL V
Shutdown ................................................................. 6V
I
DIO Input Current (Peak, < 100ms).................... 100mA
Digital Inputs .............................. – 0.3V to (V
Digital Outputs ............................ – 0.3V to (V
DAC Output Voltage ..................... – 15V to (V
Junction Temperature (Note 2) ............................ 100 C
Operating Ambient Temperature Range ..... 0 C to 70 C
Storage Temperature Range ................ – 65 C to 150 C
Lead Temperature (Soldering, 10 sec)................. 300 C
temperature range, otherwise specifications are at T
BAT = Royer = BULB = 12V, I
SYMBOL
I
ISUS
I
f
DC(MAX)
BV
ELECTRICAL CHARACTERISTICS
2
Q
SHDN
CCFL
CC
........................................................................... 7V
Input Current .............................................. 10mA
SW
PARAMETER
Supply Current
SMBSUS Supply Current
SHUTDOWN Supply Current
SHUTDOWN Input Bias Current
SHUTDOWN Threshold Voltage
Switching Frequency
Maximum Switch Duty Cycle
Switch Breakdown Voltage
Switch Leakage Current
I
CCFL V
CCFL V
CCFL V
CCFL V
CCFL V
CCFL High-Side Sense Servo Current
CCFL
I
Input Programming Current
CCFL V
I
............................................................... 60V
CCFL
CCFL
Summing Voltage
Summing Voltage for
Programming Current
C
C
C
C
C
C
Offset Sink Current
to DIO Current Servo Ratio
Low Clamp Voltage
High Clamp Voltage
Switching Threshold
Source Current for
W
CCFL
W W
= CCFL V
SW
CONDITIONS
3V V
SMBSUS = 0V or Command Code Bit 7 = 1,
CCFL V
SHUTDOWN = 0V, CCFL V
SHUTDOWN = 0V, CCFL V
Measured at CCFL V
I
Measured at CCFL V
Measured at CCFL V
V
V
3V V
CCFL
I
CCFL V
I
CCFL V
DIO = 5mA out of Pin, Measure I(V
V
I
CCFL V
I
= Open, DIO = I
SW
SW
CCFL
CCFL
CCFL
CCFL
BAT
= 12V, Measured at CCFL V
= 30V, Measured at CCFL V
= 100 A, CCFL V
= 0 A to 100 A
– V
= 25 A, 50 A, 75 A, 100 A,
= 100 A
= 100 A, I(V
U
CC
CC
C
C
C
SW
A
= Open (Note 3)
CC
CC
CC
BULB
= 1.5V, Positive Current Measured into Pin
= 1.5V
= 25 C. V
6.5V, I
6.5V
DC = 0%
+ 0.3V)
+ 0.3V)
+ 0.3V)
= BULB Protect Servo Voltage
The
OUT
OUT
C
) = 0 A at CCFL V
SW
SW
SW
CC
= 0 A
C
= GND, CCFL V
, I
denotes the specifications which apply over the full operating
= Open
= SHUTDOWN = SMBSUS = SCL = SDA = 3.3V,
SW
C
C
PACKAGE/ORDER I FOR ATIO
= Open (Note 3)
= Open
Consult LTC Marketing for parts specified with wider operating temperature ranges.
= 50mA,
SW
SW
CCFL PGND
SMBSUS
C
CCFL V
) at CCFL V
C
AGND
SHDN
I
ADR
CCFL
= 1.5V
DIO
C
C
T
= 0.5V, unless otherwise specified.
JMAX
1
2
3
4
5
6
7
8
16-LEAD PLASTIC SO
= 100 C,
C
S PACKAGE
= 1.5V
TOP VIEW
JA
= 100 C/W
16
15
14
13
12
11
10
9
CCFL V
BULB
BAT
ROYER
V
I
SCL
SDA
OUT
CC
0.425
0.385
MIN
0.45
4.70
0.93
175
160
1.7
0.6
– 5
80
75
60
94
U
SW
0.465
0.465
0.85
4.95
0.95
1.00
TYP
150
200
200
0.1
2.1
40
85
85
70
99
6
5
5
5
W
ORDER PART
LT1786FCS
NUMBER
0.505
0.555
MAX
5.20
1.07
100
300
225
240
104
9.5
1.2
0.3
2.4
1.3
10
20
40
15
15
UNITS
U
A/mA
A/ A
kHz
kHz
mA
mV
%
%
A
A
A
V
V
A
A
V
V
A
V
V
V
A