AP438/9 PWM Fan Speed Controller Features General Descriptions - Built-in 30Khz OSC provide 0%~100% PWM output - Over Temperature Protector(OTP) flag. (AP439 only). - Open collect output(OTP & PWM pins). - SIP-4L package for AP438. - SIP-5L, SOP-8L package for AP439. The AP438/9 series’s PWM output has built-in NPN power transistor that controls the Fan current & Fan speed. AP439 built-in over temperature alarm flag. Applications - PC Power. - DC Fan Pin Descriptions Pin Assignment Name Front View AP438 VCC 2 VIN 3 AP439 PWM 4 Operating voltage input VIN Reference input voltage OTP Over Temperature protect flag. PWM PWM Open Collect Output. GND Ground GND PWM VIN VCC 8 GND VCC Ordering Information SIP-4L OTP 1 Description AP439 AP43 X X X X 7 GND Part Number 8 9 6 GND 5 GND : AP438 : AP439 Package Lead Free P : SIP-4/5L Blank : Normal S : SOP-8L L : Lead Free Package Packing Blank : Tube or bulk A : Taping GND PWM VIN VCC OTP SOP-8L SIP-5L This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev.0.5 Feb.12, 2004 1/8 AP438/9 PWM Fan Speed Controller Block Diagrams VCC - compartor OTP + PWM compartor Oscillator PWM VIN + GND Absolute Maximum Ratings Symbol Parameter Rating Unit VCC Supply Voltage 20 V VIN Input voltage 20 V OTP Over temperature output. 20 V PWM Output voltage to Ground 20 V PD Power dissipation (SIP-4/5L) 0.5 W PD Power dissipation (SOP-8L) 0.8 TST Storage temperature range -65 to 150 o TOP Operating temperature range 0 to +85 VOP Operating voltage range 7.0 to 18 Anachip Corp. www.anachip.com.tw W o C C V Rev.0.5 Feb.12, 2004 2/8 AP438/9 PWM Fan Speed Controller Electrical Characteristics O Unless otherwise specified, guaranteed for Tj=25 C , VCC=12V . Symbol Parameter VCC IIN VIN DUTY VIN(OTP) VIN(Release) VIN(HS) VIN(PWM0) VIN(PWM100) IS Supply Voltage Input Bias Current(VIN Pin) Input Voltage Range PWM duty cycle range OTP Detect Voltage OTP release Voltage OTP detect Voltage Hysteresis Max Input voltage of 0% PWM Min Input voltage of 100% PWM VPWM(ON) IPWM VOTP(L) Conditions Supply Current VIN=2.0V, OSC Frequency Units 7.0 0.5 0 0 3.3 2.65 450 0.75 2.80 2 18 7 VCC-0.5 100 3.5 2.85 850 0.85 2.90 V uA V % V V mV V V mA 1.3 V 3.4 2.75 650 0.8 2.85 2.5 500 OTP low level voltage FOSC Max. 1.1 Max. sink current Max. sink current Typ. Output floating IPWM=500mA continued PWM transistor ON voltage IOTP Min. IOTP=20mA mA 0.3 0.6 20 0OC<TJ<85OC 22 V mA 30 38 Khz Application Circuit 12V AP439 12V NTC 104P FAN 1K OTP Anachip Corp. www.anachip.com.tw Rev.0.5 Feb.12, 2004 3/8 AP438/9 PWM Fan Speed Controller Typical Characteristics Supply Current v.s. Suppy Voltage 2.51 1.095 2.5 1.09 2.49 Suppy Current (mA) PWM ON Voltage (V) PWM ON Voltage v.s. Suppy Voltage 1.1 1.085 1.08 1.075 1.07 1.065 2.48 2.47 2.46 2.45 2.44 2.43 2.42 1.06 7 8 9 7 10 11 12 13 14 15 16 17 18 8 9 10 11 12 13 14 15 16 17 18 Suppy Voltage (V) Suppy Voltage (V) 32.4 Frequency (kHz) 32 31.6 31.2 30.8 30.4 30 29.6 0 PWM Transistor ON Voltage(V) Frequency v.s. Temperature 32.8 -40 -20 50 100 150 200 250 300 350 400 450 500 550 System Loading (mA) 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -10 0 10 20 30 40 50 60 70 80 0 20 40 60 80 100 120 140 T em perature (℃) PWM On Voltage v.s. Temperature (Io=500mA) PWM On Voltage v.s.Temperature (Io=100mA) PWM Transistor ON Voltage(V) PWM ON Voltage (V) PWM ON Voltage v.s. System Loading 1.15 1.1 1.05 1 0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 1.065 1.06 1.055 1.05 1.045 1.04 1.035 1.03 1.025 -10 90 100 0 10 20 30 40 50 60 70 80 90 100 Temperature (℃) Temperature (℃) Anachip Corp. www.anachip.com.tw Rev.0.5 Feb.12, 2004 4/8 AP438/9 PWM Fan Speed Controller Marking Information (1) SIP4/5L 8:438 9:439 AP43 X X XX X X Blank: normal L: Lead Free Package Date code ID code: internal XX : Nth week X :Year (2) SOP-8L ( Top View ) 8 5 AC Logo Part Number AP439 Blank: normal L: Lead Free Package YY WW X X 4 1 ID code: internal Xth week: 01~52 Year: "01" =2001 "02" =2002 ~ SOP-8L This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev.0.5 Feb.12, 2004 5/8 AP438/9 PWM Fan Speed Controller Package Information (1) Package Type: SIP-4L ( unit: mm / [inch] ) 5° ~ 7° 0.30 ± 0.1 [0.012 ± 0.004] 3° ~ 5° 1.55 ± 0.1 [0.061 ± 0.004] 5.22 ± 0.1[0.206 ± 0.004] 1.03 ± 0.1 [0.041 ± 0.004] 4.20 ± 0.1 [0.165 ± 0.004] 3.65 ± 0.1 AP438 1.42 ± 0.1 [0.056 ± 0.004] 3° ~ 5° 5° ~ 7 ° [0.144 ± 0.004] 0.46 ± 0.03 [0.018 ± 0.001] 0.2 Max. [ 0.008 Max.] 14.25± 1.25 [0.561 ± 0.049] 1.27 ± 0.03 [0.050 ± 0.001] 0.38 ± 0.03 [0.015 ± 0.001] 0.38 ± 0.03 [0.015 ± 0.001] 3.81 ± 0.03 [0.150 ± 0.001] Anachip Corp. www.anachip.com.tw Rev.0.5 Feb.12, 2004 6/8 AP438/9 PWM Fan Speed Controller Package Information (Continued) (2) Package Type: SIP-5L ( unit: mm / [inch] ) 5.22 ± 0.1 [0.206 ± 0.003] 2 ° ~ 3° 2-0.3C [0.079-0.012C] 2° ~ 5 ° 1.55 ± 0.1 [0.061 ± 0.003] 4.2 REF [0.165 REF] 0.73 ± 0.1 [0.029 ± 0.003] 2 ° ~ 3° 2° ~ 5° 3.65 ± 0.1 [0.144 ± 0.003] AP439 0.48 ± 0.1 [0.019 ± 0.003] 14.3 ± 0.3 0.38 ± 0.03 [0.563 ± 0.012] [0.015 ± 0.001] 0.95 ± 0.03 0.38 ± 0.03 [0.037 ± 0.001] [0.015 ± 0.001] Anachip Corp. www.anachip.com.tw Rev.0.5 Feb.12, 2004 7/8 AP438/9 PWM Fan Speed Controller Package Information (Continued) H E (3) Package Type: SOP-8L L VIEW "A" D 0.015x45 7 (4X) e B A1 C A A2 7 (4X) VIEW "A" y Symbol A A1 A2 B C D E e H L y θ Dimensions In Millimeters Min. Nom. Max. 1.40 1.60 1.75 0.10 0.25 1.30 1.45 1.50 0.33 0.41 0.51 0.19 0.20 0.25 4.80 5.05 5.30 3.70 3.90 4.10 1.27 5.79 5.99 6.20 0.38 0.71 1.27 0.10 O 8O 0 Anachip Corp. www.anachip.com.tw Dimensions In Inches Min. Nom. Max. 0.055 0.063 0.069 0.040 0.100 0.051 0.057 0.059 0.013 0.016 0.020 0.0075 0.008 0.010 0.189 0.199 0.209 0.146 0.154 0.161 0.050 0.228 0.236 0.244 0.015 0.028 0.050 0.004 O 0 8O Rev.0.5 Feb.12, 2004 8/8