AP2001S

AP2001 Monolithic Dual Channel PWM Controller Features - Dual PWM Control Circuitry - Operating voltage can be up to 50V - Adjustable Dead Time Control (DTC) - Under voltage Lockout (UVLO) Protection - Short Circuit Protection (SCP) - Variable Oscillator Frequency...... 500Khz Max - 2.5V voltage reference Output - 16-pin PDIP and SOP packages General Description The AP2001 integrates Pulse-width-Modulation (PWM) control circuit into a single chip, mainly designs for power-supply regulator. All the functions included an on-chip 2.5V reference output, two error amplifiers, an adjustable oscillator, two dead-time comparators, UVLO, SCP, DTC circuitry, and dual common-emitter(CE) output transistor circuit. Recommend the output CE transistors as pre-driver for Driving externally. The DTC can provide from 0% to 100%. Switching frequency can be adjustable by trimming RT and CT. During low VCC situation, the UVLO makes sure that the outputs are off until the internal circuit is operational normally. Applications - Backlight inverter - DC/DC converts in computers, etc. Pin Assignments ( Top View ) CT RT EA1+ EA1FB1 DTC1 OUT1 GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 Pin Descriptions Name REF SCP EA2+ EA2FB2 DTC2 OUT2 VCC Description Timing Capacitor Timing Resistor Error Amplifier Input(+) Error Amplifier Input(-) Feedback Loop Compensation Dead Time Control Pre-driver Output Ground Supply Voltage Short Circuit Protection Voltage Reference CT RT EA+ EA FB DTC OUT 9 PDIP/SOP GND VCC SCP REF 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. 0.3 Feb 20, 2004 1/8 AP2001 Monolithic Dual Channel PWM Controller Ordering Information AP2001 X X X Package N: PDIP-16L S: SOP-16L Lead Free Blank : Normal L : Lead Free Package Packing Blank: Tube A : Taping Block Diagram VCC SCP RT CT DTC1 REF Bandgap Reference Oscillator MAX.500KHz EA1 + EA1 VREF Error Amplifier 1 170K FB1 1.18V EA2+ EA2 Error Amplifier 2 FB2 + + UVLO R R S + + PWM Amplifier 1 OUT1 + + PWM Amplifier 2 OUT2 GND DTC2 Anachip Corp. www.anachip.com.tw 2/8 Rev. 0.3 Feb 20, 2004 AP2001 Monolithic Dual Channel PWM Controller Absolute Maximum Ratings Symbol VCC VI VO Io TOP TST TLEAD Supply voltage Amplifier input voltage Collector output voltage Collector output current Operating temperature range Storage temperature range Lead temperature 1.6 mm(1/16 inch) from case for 10 seconds Parameter Rating 40 20 40 21 -20 to +85 -65 to +150 260 Unit V V V mA o o o C C C Recommended Operating Conditions Symbol VCC VI VO IO IFB RF CT RT FOSC TOP Supply voltage Amplifier input voltage Collector output voltage Collector output current Current into feedback terminal Feedback resistor Timing capacitor Timing resistor Oscillator frequency Operating free-air temperature 100 150 5.1 1 -20 15000 100 500 85 Parameter Min. 3.6 1.05 Max. 40 1.45 40 20 45 Unit V V V mA µA kΩ pF kΩ Khz ºC Anachip Corp. www.anachip.com.tw 3/8 Rev. 0.3 Feb 20, 2004 AP2001 Monolithic Dual Channel PWM Controller Electrical Characteristics (T =25ºC, V A CC =6V, f=200 Khz) Reference (REF) Symbol Parameter Output voltage (pin 16) VO Output voltage change with temperature VDLI Input stability VDLO Output stability IO Short-circuit output current Under voltage lockout (UVLO) Symbol Parameter VUT Upper threshold voltage (VCC) VLWT Lower threshold voltage (VCC) VHT Hysteresis (VCC) Short-circuit protection (SCP) control Symbol Parameter VIT Input threshold voltage VSTB Standby voltage VLT Latched input voltage ISCP Input (source) current VCT Comparator threshold voltage (FB) Oscillator (OSC) Symbol Parameter Conditions IO = 1mA TA = -20ºC ~ 25ºC TA = 25ºC ~ 85ºC VCC=3.6V ~ 40V IO=0.1 mA ~ 1mA VO=0 Conditions IO(REF) = 0.1mA TA = 25ºC Conditions TA = 25ºC No pull up No pull up VI = 0.7V, TA = 25ºC Min. 2.4 3 Min. Typ. 2.5 -0.1 -0.2 2 1 10 Typ. 2.65 2.45 200 Typ. 0.7 185 60 -15 1.18 Typ. 200 10 1 -0.4 -0.2 Max. 2.6 ±1 ±1 12.5 7.5 30 Max. Unit V % % mV mV mA Unit V V mV Unit V mV mV µA V Unit Khz 80 Min. 0.65 140 -10 Max. 0.75 230 120 -20 Conditions CT =330 pF, RT = 10 FOSC Frequency kΩ CT =330 pF, RT = 10 Standard deviation of frequency kΩ Frequency change with voltage VCC=3.6V ~ 40V ∆FOSC TA = -20ºC ~ 25ºC Frequency change with temperature TA = 25ºC ~ 85ºC Dead-time control (DTC) Symbol Parameter Conditions IBDT IDT VDT VT0 VT100 Input bias current Latch mode (source) current Latched input voltage Input threshold voltage at f= 10 Khz TA = 25ºC IO = 40µA Zero duty cycle Maximum duty cycle Min. Max. % ±2 ±2 Max. 1 Unit µA Min. -80 2.3 Typ. -145 2.05 2.25 V 1.2 1.45 Anachip Corp. www.anachip.com.tw 4/8 Rev. 0.3 Feb 20, 2004 AP2001 Monolithic Dual Channel PWM Controller Electrical Characteristics (Continued) Error-amplifier Symbol Parameter VIO Input offset voltage IIO Input offset current IIB Input bias current VCM AV GBW CMRR VOH VOL IOI IOO Output section Symbol ILEAK VSAT Conditions VO (FB)=1.25V VO (FB)=1.25V VO (FB)=1.25V Min. Typ. Max. ±6 ±100 500 Unit mV nA nA V 80 1.5 80 1 0.5 -45 Min. 1.6 -70 Typ. 1.2 90 Min. 1.2 Min. Typ. 2.05 1.45 Typ. 2.5 2.8 Max. 3.0 3.5 Max. 2.25 Max. 10 2 dB MHz dB V V mA µA Unit µA V mA Unit V V Unit mA mA 160 1.05 to 1.45 70 60 Vref-0.1 Common-mode input voltage VCC=3.6V ~ 40V range Open-loop voltage RF=200 kΩ amplification Unity-gain bandwidth Common-mode rejection ratio Max. output voltage Min. output voltage Output (sink) current (FB) VID = -0.1V, VO = 1.25V Output (source) current (FB) VID = 0.1V, VO = 1.25V Parameter Leakage current Output saturation voltage Conditions VO = 40V IO = 10 mA VO = 6V Conditions Zero duty cycle Maximum duty cycle Conditions Off-state RT = 10 kΩ ISC Short-circuit output current PWM comparator Symbol Parameter VT0 VT100 Total device Symbol ICCS ICCA Input threshold voltage at f = 10 Khz (FB) Parameter Standby supply current Average supply current Anachip Corp. www.anachip.com.tw 5/8 Rev. 0.3 Feb 20, 2004 AP2001 Monolithic Dual Channel PWM Controller Typical Application Circuit VCC 200k 470 150 L1 0.47uF 50k 33k R1 R2 Boost Output 33k 330pF R3 C2 22k C1 500pF R4 33k V ref 16 15 14 13 12 11 10 9 Note: Values for R1 through R7 , C1 through C4 , and L1 and L2 depend upon individual application. AP2001 1 2 3 4 5 6 7 8 470 C5 R5 500 pF 470 220 1uF L2 R6 Buck Output 33k 33k 470 C4 R7 Dual output DC/DC converter Marking Information ( Top View ) 16 9 Logo Part No. AC AP2001 YY WW X X 1 8 ID code Blank: normal L: Lead Free Package Xth week: 01~52 Year: "01" = 2001 "02" = 2002 ~ PDIP/SOP Anachip Corp. www.anachip.com.tw 6/8 Rev. 0.3 Feb 20, 2004 AP2001 Monolithic Dual Channel PWM Controller Package Information (1) Package Type: SOP-16L E H L VIEW "A" θ 7o(4X) D 0.015x45o A2 A 7o(4X) A1 y Symbol A A1 A2 B C D E e H L 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 9.80 9.90 10.00 3.80 3.90 4.00 1.27 5.80 6.00 6.20 0.38 0.71 1.27 0 8 Dimensions In Inches Min. Nom. Max. 0.055 0.063 0.069 0.040 0.010 0.051 0.057 0.059 0.013 0.016 0.020 0.0075 0.008 0.0098 0.386 0.390 0.394 0.150 0.154 0.157 0.050 0.228 0.236 0.244 0.015 0.028 0.050 0 8 Anachip Corp. www.anachip.com.tw 7/8 C e B VIEW "A" Rev. 0.3 Feb 20, 2004 AP2001 Monolithic Dual Channel PWM Controller Package Information (Continued) (2) Package Type: PDIP-16L D E1 TOP E-PIN INDENT 0.079 inch BOTTOM 3-PIN INDENT 0.118 inch E1 0.005 Feb 20, 2004 7 (4X) O 15O (4X) E A A2 C L B2 D1 e B1 R0.005 eB eB DETAIL A DETAIL A B Symbol A A1 A2 B B1 B2 C D D1 E E1 e L eB Dimensions In Millimeters Min. Nom. Max. 4.57 0.38 3.15 3.33 3.50 0.36 0.46 0.56 1.14 1.27 1.52 0.81 0.99 1.17 0.20 0.25 0.33 18.90 19.10 19.30 0.56 0.69 0.76 7.62 8.26 6.15 6.35 6.55 2.54 2.92 3.81 8.38 9.40 Dimensions In Inches Min. Nom. Max. 0.180 0.015 0.124 0.131 0.138 0.014 0.018 0.022 0.045 0.050 0.060 0.032 0.039 0.046 0.008 0.010 0.013 0.744 0.752 0.760 0.022 0.027 0.030 0.3000 0.325 0.242 0.250 0.258 0.100 0.115 0.150 0.330 0.370 Anachip Corp. www.anachip.com.tw 8/8 Rev. 0.3