LT1737CGN Linear Technology, LT1737CGN Datasheet - Page 2

• Manufacturer Part Number: LT1737CGN
• Description: IC CTRLR ISOLATED FLYBACK 16SSOP
• Manufacturer: Linear Technology
• Type: Flybackr

Specifications of LT1737CGN

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Frequency - Switching: 50kHz ~ 250kHz
• Voltage - Input: 4.1 ~ 20 V
• Operating Temperature: 0°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Output: -
• Voltage - Output: -
• Power - Output: -

ABSOLUTE AXI U RATI GS
LT1737
(Note 1)
V
UVLO Pin Voltage .................................................... V
I
FB Pin Current ..................................................... ±2mA
Operating Junction
Temperature Range
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................ 300°C
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
SYMBOL
Power Supply
V
I
Feedback Amplifier
V
I
g
I
V
Gate Output
V
I
t
t
2
SENSE
CC
FB
SRC
GATE
r
f
CC(MIN)
FB
m
CL
GATE
CC
LT1737C ............................................... 0°C to 100°C
LT1737I ............................................ –40°C to 125°C
, I
Supply Voltage ................................................. 22V
SNK
Pin Voltage .................................................... 2V
PARAMETER
Minimum Input Voltage
Supply Current
Shutdown Current
Feedback Voltage
Feedback Pin Input Current
Feedback Amplifier Transconductance
Feedback Amplifier Source or Sink Current
Feedback Amplifier Clamp Voltage
Reference Voltage/Current Line Regulation
Voltage Gain
Soft-Start Charging Current
Soft-Start Discharge Current
Output High Level
Output Low Level
Output Sink Current in Shutdown, V
Rise Time
Fall Time
W
W W
UVLO
= 0V
U
A
= 25°C. V
CONDITIONS
V
V
∆l
4.75V ≤ V
V
V
V
I
I
I
I
V
C
C
GATE
GATE
GATE
GATE
C
UVLO
C
SFST
SFST
GATE
L
L
C
The
= Open
= 1V to 2V
= 1000pF
= 1000pF
= ±10µA
= 100mA
= 500mA
= 100mA
= 500mA
= 0V
= 1.5V, V
= 2V
= 0V, V
CC
●
CC
IN
denotes specifications which apply over the full operating
= 14V, GATE open, V
≤ 18V
C
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
UVLO
= Open
16-LEAD PLASTIC SSOP
= 0V
OSCAP
R
R
I
PGND
GN PACKAGE
SENSE
OCMP
SFST
CMPC
T
T
JMAX
JMAX
V
FB
C
= 125°C, θ
= 125°C, θ
1
2
3
4
5
6
7
8
TOP VIEW
C
= 1.4V unless otherwise noted.
JA
JA
= 110°C/W (GN)
= 110°C/W (SO)
16-LEAD PLASTIC SO
●
●
●
●
●
●
●
●
●
●
●
●
S PACKAGE
16
15
14
13
12
11
10
9
1.230
1.220
11.5
11.0
MIN
400
0.8
1.2
30
25
GATE
V
t
ENDLY
MINENAB
SGND
UVLO
3V
ON
CC
OUT
U
1.245
1000
2000
0.01
12.1
11.8
TYP
500
4.1
2.5
1.5
0.3
0.6
2.5
GN PART MARKING
10
50
50
40
30
30
ORDER PART
LT1737CGN
LT1737CS
LT1737IGN
LT1737IS
W
NUMBER
1737
1737I
1.260
1.270
1800
MAX
0.05
0.45
150
4.5
1.0
15
80
50
UNITS
U
µmho
1737fa
%/V
V/V
mA
mA
mA
µA
nA
µA
µA
ns
ns
V
V
V
V
V
V
V
V