2 Channel Linear Controller

www.DataSheet4U.com AP450 2 Channel Linear Controller with Enable Function Features - 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 General Description 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 Assignment (Top View) GND 1 EN1/2 2 OUT1 3 FB1 4 8 AP450 7 6 5 Vcc VREF OUT2 FB2 Pin Descriptions Pin Name GND EN1/2 OUT1 FB1, 2 OUT2 VREF Vcc Pin No. 1 2 3 4, 5 6 7 8 Description Signal Ground Channel 1/2 Enable Pin Linear Controller CH1output Voltage Feedback Linear Controller CH2 output 1.25V/0.8V Output Supply Voltage SOP-8L/PDIP-8L Ordering Information AP450 X X X Bandgap Version A: 1.25VBG B: 0.8VBG Package N: PDIP-8L S: SOP-8L Packing 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 www.DataSheet4U.com AP450 2 Channel Linear Controller with Enable Function Block Diagram + FB2 Amp _ LPF Buffer Current Limit OUT2 + FB1 EN1/2 _ Amp LPF Buffer Current Limit OUT1 VREF 2.5V Bandgap Reference 1.25V/0.8V UVLO Vcc GND Absolute Maximum Ratings Symbol VCC VI VO1 / VO2 TOP TST TLEAD Supply voltage Amplifier input voltage 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 Parameter Rating 22 20 -0.3≦V≦20 -20 to +85 -65 to +150 260 Unit V V V o o o C C C Recommended Operating Conditions Symbol VCC VI VO1 / VO2 IFB RF TOP Supply voltage Amplifier input voltage CH1 / CH2 Linear driver voltage to ground Current into feedback terminal Feedback resistor Operating free-air temperature Parameter Min. 3.6 1.05 100 -20 Max. 20 1.45 Vcc-1.5 45 85 Unit V V V µA kΩ ºC Anachip Corp. www.anachip.com.tw 2/6 Rev. 1.1 Sep 7, 2004 www.DataSheet4U.com AP450 2 Channel Linear Controller with Enable Function Electrical Characteristics (T =25ºC, V A CC =6V) Reference (REF) Symbol VOUT1/2 Parameter VO1 / VO2 connect to FB1 / FB2 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 IIH Total device Average supply current ICCA Thermal Resistor θJA Thermal Resistor Junction to Ambient EN pin logic input current for EN1/2 Conditions AP450A AP450B TA = -20ºC ~ 25ºC TA = 25ºC ~ 85ºC IO(REF) = 0.1mA TA = 25ºC VCC=5V, VNOUT2=VFB2=0V VCC=5V, VNOUT3=VFB3=0V Low (regulator ON) High (regulator OFF) Low (regulator ON) High (regulator OFF) Min. 1.225 0.784 25 25 2.0 - Typ. 1.25 0.800 -0.1 -0.2 2.9 2.4 500 - Max. 1.275 0.816 ±1 ±1 0.6 7 - Unit V % % V V mV mA mA V V µA µA mA O O 1.3 -0.03 0.3 5 90 60 SOP8 PDIP8 - C/W C/W Typical Application Circuit Vcc=12V 220µF 1 OFF ON GND EN1/2 OUT1 FB1 V Vcc 8 7 6 5 390Ω 220µF 180Ω 3.3V 2 3 REF 0.1µF 3.3V VOUT2=2.5V VOUT3=1.8V 270Ω 220µF 220Ω OUT2 FB2 4 AP450B Anachip Corp. www.anachip.com.tw 3/6 Rev. 1.1 Sep 7, 2004 www.DataSheet4U.com AP450 2 Channel Linear Controller with Enable Function Typical Characteristics REFERENCE OUTPUT VOLTAGE v.s. POWER-SUPPLY VOLTAGE Icc-Average Supply Current (mA) 0.805 AVERAGE SUPPLY CURRENT v.s. POWER-SUPPLY VOLTAGE 5 4 3 2 1 0 0 4 8 12 16 20 Vref- Reference Output Voltage (V) 0.8025 0.8 0.7975 0.795 4 6 8 10 12 14 16 18 20 Vcc-Power Supply Voltage (V) Vcc - Power-Supply Voltgae (V) AVERAGE SUPPLY CURRENT v.s. AMBIENT TEMPERATRUE 7 6 5 4 3 2 -50 -25 0 25 50 75 100 ICC - Average Supply Current (mA) TA - Ambient Temperatrure(℃) Marking Information (Top View) 8 5 Logo Part No. AP450 X YY WW X 1 4 Bandgap version A: 1.25VBG B: 0.8VBG ID code: internal Xth week: 01~52 Year: "01" =2001 "02" =2002 ~ SOP-8L/PDIP-8L Anachip Corp. www.anachip.com.tw 4/6 Rev. 1.1 Sep 7, 2004 www.DataSheet4U.com AP450 2 Channel Linear Controller with Enable Function Package Information (1) PDIP-8L (Plastic Dual-in-line Package ) D E-PIN O0.118 inch E1 E 15 (4X) PIN #1 INDENT O0.025 DEEP 0.006-0.008 inch 7 (4X) eB A2 A C L B S e B1 B2 Symbol A A1 A2 B B1 B2 C D E E1 e L eB S 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 A1 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 Anachip Corp. www.anachip.com.tw 5/6 Rev. 1.1 Sep 7, 2004 www.DataSheet4U.com AP450 2 Channel Linear Controller with Enable Function Package Information (Continued) (2) SOP- 8L(JEDEC Small Outline Package) E H L VIEW "A" D 7 (4X) A2 A 0.015x45 7 (4X) A1 e B y C VIEW "A" 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 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 Anachip Corp. www.anachip.com.tw 6/6 Rev. 1.1 Sep 7, 2004