FAN7554DTF Fairchild Semiconductor, FAN7554DTF Datasheet - Page 2

• Manufacturer Part Number: FAN7554DTF
• Description: IC CTRLR PWM CURRENT MODE 8SOIC
• Manufacturer: Fairchild Semiconductor

Specifications of FAN7554DTF

• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 500kHz
• Duty Cycle: 98%
• Voltage - Supply: 9 V ~ 30 V
• Buck: No
• Boost: No
• Flyback: Yes
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -25°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• Frequency-max: 500kHz
• Output Current: 1 A
• Switching Frequency: 500 KHz
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FAN7554DTFTR; FAN7554DTF_NL; FAN7554DTF_NLTR; FAN7554DTF_NLTR

FAN7554
Internal Block Diagram
Absolute Maximum Ratings
( Ta = 25 C, unless otherwise specified )
Note:
1. Junction -to -air thermal resistance test environments.
- JESD51-2 : Integrated circuits thermal test method environmental conditions-natural convection (still air).
- JESD51-3 : Low effective thermal conductivity test board for leaded surface mount packages.
- JESD51-10 : Test boards for through-hole perimeter leaded package thermal measurements.
2
Parameter
Supply voltage
Output current
Input voltage to FB pin
Input voltage to IS pin
Power dissipation at T
8-DIP
8-SOP
Operating temperature
Storage temperature
Thermal resistance, junction-to-air (Note1)
8-DIP
8-SOP
S/S
S/S
FB
FB
2
2 2
1
1 1
100 uA
100 uA
0.3V
0.3V
Vref
Vref
+
+
_
_
A
5uA
5uA
5uA
6V
6V
25 C
1k
1k 1k
Vcc
Vcc
Vcc
+
+
_
_
3.5V
3.5V
Vref
Vref
OLP
OLP
1.5V
1.5V
OVP-out
OVP-out
1mA
1mA
+
+
_
_
_
_
+
+
OCL-out
OCL-out
2R
2R
S
S
MAX. 1V
MAX. 1V
R
R
Q
Q
R
R
Rt/Ct
Rt/Ct
OSC
OSC
Symbol
4
4 4
T
T
Offset(0.1V)
Offset(0.1V)
R ja
V
Vcc
V
P
OPR
_
_
+
+
STG
I
UVLO-out
UVLO-out
FB
off
off
O
on
on
IS
PWM
PWM
D
SAVE
SAVE
PWR
PWR
/
/
CLK
CLK
S
S
R
R
S
S
R
R
Vref
Vref
Vref
Vref
Q
Q
Q
Q
8
8 8
-0.3 to V
-55 to +150
-0.3 to V
-25 to +85
Value
147.8
291.4
0.85
0.42
30
±1
UVLO
UVLO
OVP
OVP
15V/9V
15V/9V
OC
SD
+
+
_
_
+
+
_
_
OCL
OCL
+
+
_
_
34V
34V
14V
14V
Vcc
Vcc
7
7 7
2V
2V
6
6 6
3
3 3
5
5 5
Unit
C/W
W
V
A
V
V
C
C
GND
GND
OUT
OUT
I S
I S