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AP438SLA Datasheet(PDF) 3 Page - Anachip Corp |
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AP438SLA Datasheet(HTML) 3 Page - Anachip Corp |
3 / 8 page AP438/9 PWM Fan Speed Controller Anachip Corp. www.anachip.com.tw Rev.0.5 Feb.12, 2004 3/8 Electrical Characteristics Unless otherwise specified, guaranteed for Tj=25 OC , VCC=12V . Symbol Parameter Conditions Min. Typ. Max. Units VCC Supply Voltage 7.0 - 18 V IIN Input Bias Current(VIN Pin) VIN=2.0V, 0.5 2 7 uA VIN Input Voltage Range 0 VCC-0.5 V DUTY PWM duty cycle range 0 100 % VIN(OTP) OTP Detect Voltage 3.3 3.4 3.5 V VIN(Release) OTP release Voltage 2.65 2.75 2.85 V VIN(HS) OTP detect Voltage Hysteresis 450 650 850 mV VIN(PWM0) Max Input voltage of 0% PWM 0.75 0.8 0.85 V VIN(PWM100) Min Input voltage of 100% PWM 2.80 2.85 2.90 V IS Supply Current Output floating 2.5 mA VPWM(ON) PWM transistor ON voltage IPWM=500mA continued 1.1 1.3 V IPWM Max. sink current 500 mA VOTP(L) OTP low level voltage IOTP=20mA 0.3 0.6 V IOTP Max. sink current 20 mA FOSC OSC Frequency 0 OC<T J<85 OC 22 30 38 Khz Application Circuit AP439 12V NTC 12V OTP FAN 1K 104P |
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