AP2001 Monolithic Dual Channel PWM Controller Features 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. - 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 Applications - Backlight inverter - DC/DC converts in computers, etc. Pin Assignments Pin Descriptions ( Top View ) Name CT 1 16 RT EA1+ EA1FB1 2 15 3 14 4 13 5 12 DTC1 OUT1 GND 6 11 7 10 8 9 REF SCP EA2+ EA2FB2 DTC2 OUT2 VCC CT Timing Capacitor RT Timing Resistor EA+ Error Amplifier Input(+) EA - Error Amplifier Input(-) FB PDIP/SOP Description Feedback Loop Compensation DTC Dead Time Control OUT Pre-driver Output GND Ground VCC Supply Voltage SCP Short Circuit Protection REF Voltage Reference 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 Packing Blank : Normal L : Lead Free Package Blank: Tube A : Taping Block Diagram VCC SCP RT Bandgap Reference REF CT DTC1 Oscillator MAX.500KHz EA1 + + + - EA1 - OUT1 VREF Error Amplifier 1 PWM Amplifier 1 170K FB1 1.18V UVLO + + R R S EA2+ + + EA2 - OUT2 PWM Amplifier 2 Error Amplifier 2 FB2 GND Anachip Corp. www.anachip.com.tw DTC2 Rev. 0.3 2/8 Feb 20, 2004 AP2001 Monolithic Dual Channel PWM Controller Absolute Maximum Ratings Symbol Rating Unit Supply voltage 40 V VI Amplifier input voltage 20 V VO Collector output voltage 40 V Io Collector output current 21 mA VCC Parameter TOP Operating temperature range -20 to +85 o TST Storage temperature range -65 to +150 o 260 o TLEAD Lead temperature 1.6 mm(1/16 inch) from case for 10 seconds C C C Recommended Operating Conditions Symbol Min. Max. Unit Supply voltage 3.6 40 V VI Amplifier input voltage 1.05 1.45 V VO Collector output voltage 40 V IO Collector output current 20 mA IFB Current into feedback terminal 45 µA RF Feedback resistor 100 CT Timing capacitor 150 15000 pF RT Timing resistor 5.1 100 kΩ 1 500 Khz -20 85 ºC VCC Parameter FOSC Oscillator frequency TOP Operating free-air temperature Anachip Corp. www.anachip.com.tw kΩ Rev. 0.3 3/8 Feb 20, 2004 AP2001 Monolithic Dual Channel PWM Controller Electrical Characteristics (T =25ºC, V A 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 CC =6V, f=200 Khz) Conditions IO = 1mA TA = -20ºC ~ 25ºC TA = 25ºC ~ 85ºC VCC=3.6V ~ 40V IO=0.1 mA ~ 1mA VO=0 Min. 2.4 Conditions Min. IO(REF) = 0.1mA TA = 25ºC 3 80 Conditions TA = 25ºC No pull up No pull up VI = 0.7V, TA = 25ºC Min. 0.65 140 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 Min. -10 Typ. 2.65 2.45 200 Max. Unit V V mV Typ. 0.7 185 60 -15 1.18 Max. 0.75 230 120 -20 Unit V mV mV µA V Typ. Max. Unit Khz 1 -0.4 -0.2 ±2 ±2 Min. Typ. Max. -145 Input bias current Latch mode (source) current TA = 25ºC -80 VDT Latched input voltage IO = 40µA 2.3 VT100 Unit V % % mV mV mA 10 IDT Input threshold voltage at f= 10 Khz Max. 2.6 ±1 ±1 12.5 7.5 30 200 IBDT VT0 Typ. 2.5 -0.1 -0.2 2 1 10 % 1 Zero duty cycle Maximum duty cycle Anachip Corp. www.anachip.com.tw 2.05 1.2 µA 2.25 V 1.45 Rev. 0.3 4/8 Unit 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 Conditions VO (FB)=1.25V VO (FB)=1.25V VO (FB)=1.25V 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 Conditions Min. Typ. 160 1.05 to 1.45 70 60 Vref-0.1 80 dB 1.5 80 MHz dB V V mA µA 1 0.5 -45 1.6 -70 Min. Typ. Leakage current VO = 40V VSAT Output saturation voltage IO = 10 mA 1.2 VO = 6V 90 VT0 VT100 Total device Symbol Input threshold voltage at f = 10 Khz (FB) Conditions Min. Zero duty cycle Maximum duty cycle Parameter Conditions Unit mV nA nA V ILEAK ISC Short-circuit output current PWM comparator Symbol Parameter Max. ±6 ±100 500 Max. Unit 10 µA 2 V mA Typ. Max. Unit 2.05 2.25 V 1.2 1.45 V Min. Typ. Max. Unit ICCS Standby supply current Off-state 2.5 3.0 mA ICCA Average supply current RT = 10 kΩ 2.8 3.5 mA Anachip Corp. www.anachip.com.tw Rev. 0.3 5/8 Feb 20, 2004 AP2001 Monolithic Dual Channel PWM Controller Typical Application Circuit VCC 200k 0.47uF 150 470 L1 Boost Output 50k 33k 33k 330pF R1 R2 R3 C2 22k 33k R4 C1 500pF V ref 16 15 14 13 12 11 10 9 7 8 Note: Values for R1 through R7 , C1 through C4 , and L1 and L2 depend upon individual application. AP2001 1 2 3 4 5 6 470 C5 R5 470 500 pF 1uF 220 L2 Buck Output R6 33k C4 470 33k R7 Dual output DC/DC converter Marking Information ( Top View ) 16 9 AC AP2001 YY WW X X Logo Part No. 1 ID code Blank: normal L: Lead Free Package 8 Xth week: 01~52 Year: "01" = 2001 "02" = 2002 ~ PDIP/SOP Anachip Corp. www.anachip.com.tw Rev. 0.3 6/8 Feb 20, 2004 AP2001 Monolithic Dual Channel PWM Controller Package Information H E (1) Package Type: SOP-16L L θ VIEW "A" D 7o(4X) 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 Anachip Corp. www.anachip.com.tw C B A1 e 7o(4X) A A2 0.015x45o VIEW "A" 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 Rev. 0.3 7/8 Feb 20, 2004 AP2001 Monolithic Dual Channel PWM Controller Package Information (Continued) (2) Package Type: PDIP-16L E1 D TOP E-PIN INDENT BOTTOM 3-PIN INDENT 0.079 inch 0.118 inch E A A2 7 (4X) 0.005 E1 15O (4X) O C L R0.005 B2 B e eB B1 D1 eB DETAIL A DETAIL A 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 Anachip Corp. www.anachip.com.tw 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 Rev. 0.3 8/8 Feb 20, 2004