Specifications |
| FAN400CNY | Full Production | Green | $0.308 | DIP | 8 | RAIL | | Line 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: FAN400C Line 3: NYD |
| FAN400CTY | Full Production | Green | $0.296 | SSOT-6 | 6 | TAPE REEL | | Line 1: &E&E&Y (Binary Calendar Year Coding)
Line 2: &OAAUD&C Line 3: &.&O&E&V |
* Fairchild 1,000 piece Budgetary Pricing
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| ** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples |
Package marking information for product FAN400C is available. Click here for more information . |
DescriptionThis highly integrated PWM controller provides several features to enhance the performance of low-power flyback converters. To minimize standby power consumption, a proprietary green-mode function provides off-time modulation to linearly decrease the switching frequency under light-load and zero-load conditions. This green mode enables the power supply to meet international power conservation requirements. Another advantage of the FAN400A is that the typical startup current is only 8?A, while the typical operating current can be as low as 3.6mA. A large startup resistance can be used to achieve even higher power conversion efficiency.
FAN400C integrates a frequency-hopping function internally to reduce EMI emissions with minimum line filters. Built-in synchronized slope compensation maintains the stability of peak current-mode control. Proprietary internal compensation ensures constant output power limiting over a universal range of AC input voltages, from 90VAC to 264VAC.
The FAN400C provides many protection functions. Pulse-by-pulse current limiting ensures constant output current, even if a short circuit occurs. The internal protection circuit disables PWM output if VDD exceeds 24.5V. The gate output is clamped at 17V to protect the power MOS from over-voltage damage. The built-in over-temperature protection (OTP) function shuts down the controller at 140?C with a 30?C hysteresis.
The FAN400C is designed to provide a low-cost total solution for flyback converters. It is available in a small-footprint, 6-pin, SSOT-6 package.
FAN400C Data Sheet
