(Hong Kong)
Product Summary
The FAN7554D is a fixed frequency current mode PWM controller. It is specially designed for off-line and DC to DC converter applications with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, an ON/OFF control, a high gain error amplifier, a current sensing comparator, and a high current totem-pole output. The FAN7554D has various protection functions such as an over load protection, an over current protection, and the over voltage protection, which include built-in auto restart circuit. The FAN7554D is available in the 8-DIP package as well as the 8-SOP package.
Parametrics
FAN7554D absolute maximum ratings: (1)Supply voltage Vcc: 30 V; (2)Output current IO: ±1 A; (3)Input voltage to FB pin VFB: -0.3 to VSD V; (4)Input voltage to IS pin VIS: -0.3 to VOC V; (5)Power dissipation at TA ≤ 25℃: 8-DIP 0.85 W; (6)Operating temperature TOPR: -25 to +85 ℃; (7)Storage temperature TSTG: -55 to +150 ℃.
Features
FAN7554D features: (1)Current mode control; (2)Pulse by pulse current limiting; (3)Low external components; (4)Under voltage lockout(UVLO): 9V/15V; (5)Stand-by current: typ. 100uA; (6)Power saving mode current: typ. 200uA; (7)Operating current: typ. 7mA; (8)Soft start; (9)On/off control; (10)Over load protection(OLP); (11)Over voltage protection(OVP); (12)Over current protection(OCP); (13)Over current limit(OCL); (14)Operating frequency up to 500kHz; (15)1A totem-pole output current.
Diagrams
| Image | Part No | Mfg | Description |  |
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 FAN7554D |
Fairchild Semiconductor |
DC/DC Switching Controllers PWM Controller |
Data Sheet |
Negotiable |
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FAN7554D_Q |
Fairchild Semiconductor |
Current Mode PWM Controllers PWM Controller |
Data Sheet |
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FAN7554DTF_Q |
Fairchild Semiconductor |
Current Mode PWM Controllers PWM Controller |
Data Sheet |
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FAN7554DTF |
Fairchild Semiconductor |
DC/DC Switching Controllers PWM Controller |
Data Sheet |
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