FAN7554 Fairchild Semiconductor, FAN7554 Datasheet - Page 3

• Manufacturer Part Number: FAN7554
• Description: IC CTRLR PWM CURRENT MODE 8DIP
• Manufacturer: Fairchild Semiconductor

Specifications of FAN7554

• 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-DIP (0.300", 7.62mm)
• Frequency-max: 500kHz
• Output Voltage: 30 V
• Output Current: 1 A
• Switching Frequency: 500 KHz
• Mounting Style: Through Hole
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FAN7554_NL; FAN7554_NL

Temperature Characteristics
( -25 C
PIN Array
PIN Definitions
Pin Number
Parameter
Vref temperature stability
Fosc temperature stability
1
2
3
4
5
6
7
8
Ta
85 C )
Pin Name
Rt/Ct
GND
OUT
Vref
S/S
Vcc
FB
IS
Vref
Inverting(-) input of pwm comparator, on/off control & OLP sensing terminal.
Soft start
Non-inverting(+) input of PWM comparator, OCL sensing terminal
Oscillator time constant(Rt/Ct)
Ground
Output of gate driver
Power supply
Output of 5V reference
FB
8 8 8 8
1 1 1 1
F F F F
A A A A N N N N 7 7 7 7 5 5 5 5 5 5 5 5 4 4 4 4
Vcc
S/S
7 7 7 7
2 2 2 2
Symbol
F
V
OSC
REF
3
2
OUT
Pin Function Description
Y Y Y Y W W W W W W W W
IS
6 6 6 6
3 3 3 3
GND
Rt/Ct
4 4 4 4
5 5 5 5
Value
±0.5
±5
Unit
%
%
FAN7554
3