AP450 2 Channel Linear Controller with Enable Function Features General Description - 2 Channel Linear Control Circuitries - Operating voltage can be up to 20V - Under voltage Lockout (UVLO) Protection - Current Limit - Over Voltage Protection - Power Good Function - 1.25V/0.8V internal voltage reference - 8-pin PDIP and SOP Pb-Free packages The AP450 series integrates two channel linear controllers into a single chip, mainly designs for power-supply regulator. All the functions included an on-chip 1.25V/0.8V reference output, error amplifier, UVLO, current limit. During low VCC situation, the UVLO makes sure that the outputs are off until the internal circuit is operational normally. Applications - Backlight inverter - LCD Monitor - XDROM, XDSL Product Pin Descriptions Pin Assignment (Top View) GND 1 EN1/2 2 OUT1 3 FB1 4 8 AP450 7 6 5 Vcc VREF OUT2 FB2 SOP-8L/PDIP-8L Pin Name GND Pin No. 1 EN1/2 2 Channel 1/2 Enable Pin OUT1 3 Linear Controller CH1output FB1, 2 4, 5 OUT2 6 Linear Controller CH2 output VREF 7 1.25V/0.8V Output Vcc 8 Supply Voltage Description Signal Ground Voltage Feedback Ordering Information AP450 X X X Bandgap Version A: 1.25VBG B: 0.8VBG Package Packing N: PDIP-8L S: SOP-8L Blank: Tube A : Taping 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. 1.1 Sep 7, 2004 1/6 AP450 2 Channel Linear Controller with Enable Function Block Diagram + LPF Amp _ FB2 Buffer + _ FB1 LPF Amp Buffer Current Limit OUT2 Current Limit OUT1 EN1/2 2.5V VREF Bandgap Reference UVLO Vcc GND 1.25V/0.8V Absolute Maximum Ratings Symbol VCC VI VO1 / VO2 TOP TST TLEAD Parameter Supply voltage Amplifier input voltage Rating Unit 22 V 20 V -0.3≦V≦20 CH1 / CH1Linear driver voltage to ground Operating temperature range Storage temperature range Lead temperature 1.6 mm(1/16 inch) from case for 10 seconds V -20 to +85 o C -65 to +150 o C 260 o C Recommended Operating Conditions Symbol Min. Max. Unit Supply voltage 3.6 20 V Amplifier input voltage 1.05 1.45 V CH1 / CH2 Linear driver voltage to ground - Vcc-1.5 V IFB Current into feedback terminal - 45 µA RF Feedback resistor 100 - kΩ TOP Operating free-air temperature -20 85 ºC VCC VI VO1 / VO2 Parameter Anachip Corp. www.anachip.com.tw Rev. 1.1 Sep 7, 2004 2/6 AP450 2 Channel Linear Controller with Enable Function Electrical Characteristics (T =25ºC, V A Reference (REF) Symbol Parameter VO1 / VO2 connect to FB1 / FB2 VOUT1/2 Output voltage change with temperature Under voltage lockout (UVLO) VUT Upper threshold voltage (VCC) VLWT Lower threshold voltage (VCC) VHT Hysteresis (VCC) Output section CH1 Current Limit ICL1 ICL2 CH2 Current Limit Enable function VIL EN pin logic input threshold voltage for EN1/2 VIH IIL EN pin logic input current for EN1/2 IIH Total device Average supply current ICCA Thermal Resistor Conditions AP450A AP450B TA = -20ºC ~ 25ºC TA = 25ºC ~ 85ºC Min. 1.225 0.784 - Typ. 1.25 0.800 -0.1 -0.2 Max. 1.275 0.816 ±1 ±1 Unit - 2.9 2.4 500 - V V mV VCC=5V, VNOUT2=VFB2=0V 25 - - mA VCC=5V, VNOUT3=VFB3=0V 25 - - mA IO(REF) = 0.1mA TA = 25ºC Low (regulator ON) High (regulator OFF) - 1.3 2.0 V % % 0.6 V - V Low (regulator ON) - -0.03 - µA High (regulator OFF) - 0.3 - µA - 5 7 mA - 90 - O - O SOP8 Thermal Resistor Junction to Ambient θJA =6V) CC PDIP8 - 60 C/W C/W Typical Application Circuit Vcc=12V 220µF OFF ON 3.3V VOUT3=1.8V 270Ω 1 GND 2 EN1/2 V 3 OUT1 OUT2 6 4 FB1 FB2 5 Vcc 220µF 220Ω REF 8 7 0.1µF 3.3V VOUT2=2.5V 390Ω 220µF 180Ω AP450B Anachip Corp. www.anachip.com.tw Rev. 1.1 Sep 7, 2004 3/6 AP450 2 Channel Linear Controller with Enable Function Typical Characteristics REFERENCE OUTPUT VOLTAGE v.s. POWER-SUPPLY VOLTAGE AVERAGE SUPPLY CURRENT v.s. POWER-SUPPLY VOLTAGE Vref- Reference Output Voltage (V) 0.805 5 Icc-Average Supply Current (mA) 0.8025 0.8 0.7975 4 3 2 1 0 0.795 4 6 8 10 12 14 16 18 0 20 Vcc-Power Supply Voltage (V) 4 8 12 16 20 Vcc - Power-Supply Voltgae (V) AVERAGE SUPPLY CURRENT v.s. AMBIENT TEMPERATRUE ICC - Average Supply Current (mA) 7 6 5 4 3 2 -50 -25 0 25 50 75 100 TA - Ambient Temperatrure(℃) Marking Information (Top View) 5 8 Logo Part No. AP450 X YY WW X 1 Bandgap version A: 1.25VBG B: 0.8VBG ID code: internal 4 Xth week: 01~52 Year: "01" =2001 "02" =2002 ~ SOP-8L/PDIP-8L Anachip Corp. www.anachip.com.tw Rev. 1.1 Sep 7, 2004 4/6 AP450 2 Channel Linear Controller with Enable Function Package Information (1) PDIP-8L (Plastic Dual-in-line Package ) D E1 E-PIN O0.118 inch E 15 (4X) PIN #1 INDENT O0.025 DEEP 0.006-0.008 inch C 7 (4X) A1 L A A2 eB B S Symbol A A1 A2 B B1 B2 C D E E1 e L eB S e B1 B2 Dimensions in millimeters Min. Nom. Max. 5.33 0.38 3.1 3.30 3.5 0.36 0.46 0.56 1.4 1.52 1.65 0.81 0.99 1.14 0.20 0.25 0.36 9.02 9.27 9.53 7.62 7.94 8.26 6.15 6.35 6.55 2.54 2.92 3.3 3.81 8.38 8.89 9.40 0.71 0.84 0.97 Anachip Corp. www.anachip.com.tw Dimensions in inches Min. Nom. Max. 0.210 0.015 0.122 0.130 0.138 0.014 0.018 0.022 0.055 0.060 0.065 0.032 0.039 0.045 0.008 0.010 0.014 0.355 0.365 0.375 0.300 0.313 0.325 0.242 0.250 0.258 0.100 0.115 0.130 0.150 0.330 0.350 0.370 0.028 0.033 0.038 Rev. 1.1 Sep 7, 2004 5/6 AP450 2 Channel Linear Controller with Enable Function Package Information (Continued) H E (2) SOP- 8L(JEDEC Small Outline Package) 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 0O 8O 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 0O 8O Rev. 1.1 Sep 7, 2004 6/6