AIC1630A HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER SPEC NO: DS-1630A-04 FEATURES Default +5V Output Voltage. Adjustable Output Voltage with Two Resistors. DESCRIPTION The AIC1630A is a DC-DC converter designed to drive an external power switch for more flexibility, especially in higher voltage and larger power applications. Typically six components are required to set up a step up configuration easily achieving efficiency beyond 80%. A few more components are required to set up a step down configuration delivering 4A load current with 83% typical efficiency, 86% at 2A load, and 300µA quiescent current. Power-Saving Shutdown Mode (7µA typical). 120KHz Switching Rate. On-Chip Low Battery Detector. APPLICATIONS Palmtop & Notebook Computers. Battery Charger Supply. Cellular Telephone. LCD Contrast Supply. Flash Memory Programmer. Battery Backup Supplies. Portable Instruments. The output voltage can be internally set to 5V or externally set to an arbitrary value below breakdown voltage of the power switch. Logiccontrolled shutdown mode is provided for power saving. The low battery detector can be also configured as a linear regulator. 120KHz switching rate reduces the inductor size. Inductors of 25µH to 50µH inductance are recommended for most applications. TYPICAL APPLICATION CIRCUIT +VIN 100Ω + 50µH R3 L LOAD SD VOUT VIN LBI EXT LBO R1 5nF C2 2SC4672 +VOUT 100µF C3 D1 1N5819 C1 100µF Q1 1 GND 270Ω R4 FB AIC1630A EXT R2 INT Note : VIN ≥ 1.8V , VOUT ≤ 7V High Efficiency Step-Up DC/DC Converter ORDERING INFORMATION AIC1630A XX ORDER NUMBER PACKAGE TYPE N: PLASTIC DIP S: SMALL OUTLINE TEMPERATURE RANGE C=0°C~70°C AIC1630ACN (PLASTIC DIP) AIC1630ACS (PLASTIC SO) PIN CONFIGURATION TOP VIEW SD 1 8 VOUT VIN 2 7 LBI EXT 3 6 LBO GND 4 ANALOG INTEGRATIONS CORPORATION www.analog.com.tw 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510 5 FB 1 AIC1630A HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER SPEC NO: DS-1630A-04 ABSOLUTE MAXIMUM RATINGS Supply Voltage ………………………..……………………………………………… 7.0V DC Voltage Applied On All Other Pins ………………………………………………. 7.0V Operating Temperature Range ………………………………………………… 0°C~70°C Storage Temperature Range ……………………………………………… -65°C ~150°C TEST CIRCUIT Refer to Typical Application Circuit. ELECTRICAL CHARACTERISTICS PARAMETER (VIN=3.0V, Ta=25°°C, unless otherwise specified.) TEST CONDITIONS Input Voltage Default Output Voltage MIN. TYP. MAX. UNIT 7 V 5 5.2 V 105 140 µA 7 15 µA 1.8 IL=200mA 4.8 Switch Off Current Shutdown Mode Current Recovery Time from Shutdown VIN=2.5V, IL=200mA 0.4 mS Efficiency IL=300mA Fig. 1 in Appl. Examples 85 % Line Regulation VIN=2.2~3.3V VOUT=5V, IL=100mA 0.6 %VOUT Load Regulation IL=10mA~500mA VOUT=5V 2.5 %VOUT Oscillator Frequency 90 120 150 KHz LBI Pin Trip Point 1.17 1.22 1.27 V FB Threshold Voltage 0.598 0.617 0.636 V EXT Pin Driving Capability LBO “ON Resistance” Pin 8=5V, Pin 3= 0.85V Sourcing Sinking 80 50 mA mA VIN=2V 45 Ω Input Pin Bias Current 10 nA/Pin Output Pin Leakage 10 nA/Pin ANALOG INTEGRATIONS CORPORATION www.analog.com.tw 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510 2 AIC1630A HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER SPEC NO: DS-1630A-04 TYPICAL PERFORMANCE CHARACTERISTICS Ext Pin Sourcing Capability vs Temperature Ext Pin Sourcing Capability 90 85 VOUT=5V 80 80 VOUT=5V Ta=25°C IEXT 60 IEXT (mA) (mA) 70 50 70 60 Ext Pin Voltage=0.85V 50 40 VOUT=3V 30 40 20 30 0.6 0.8 1 1.2 1.4 EXT Pin Voltage (V) 1.6 1.8 VOUT=3V 0 2 10 50 60 70 80 55 80 53 Ta=25°C 75 Ext Pin Voltge=0.85V 51 70 49 VOUT=5V 65 IEXT (mA) IEXT (mA) 40 Ext Pin Sinking Capability vs Temperature Ext Pin Sinking Capability 60 55 VOUT=3V 50 45 43 41 39 40 37 0.6 0.8 1 1.2 VOUT=5V 47 45 1.4 1.6 1.8 35 2.0 VOUT=3V 0 10 20 30 40 50 60 EXT Pin Voltage (V) Temperature(°C) Switch off Supply Current vs Input Voltage Switch Off Supply Current vs Temperature 70 80 120 110 105 115 Ta=25°C 100 110 VIN=3V IS (µA) IS (µA) 30 Temperature (°C) 85 35 20 95 105 90 100 85 95 80 75 90 1.5 2 2.5 3 3.5 4 4.5 5 0 10 20 30 40 50 60 70 80 Temperature (°C) VIN (V) ANALOG INTEGRATIONS CORPORATION www.analog.com.tw 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510 3 AIC1630A HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER SPEC NO: DS-1630A-04 TYPICAL PERFORMANCE CHARACTERISTICS (CONTINUED) Shutdown Mode Supply Current vs Temperature Shutdown Mode Supply Current vs Input Voltage 8.2 9.4 8 9 VIN=3V Ta=25°C 8.6 IS (µA) IS (µA) 7.8 7.6 8.2 7.4 7.8 7.2 7.4 7 1 1.5 2 2.5 3 VIN (V) 3.5 4 4.5 7 5 0 10 20 40 50 60 70 80 Oscillator Frequency vs Temperature 130 123 120 122 VIN=3V Frequency (KHz) Frequency (KHz) Oscillator Frequency vs Input Voltage 110 121 Ta=25°C 100 120 90 119 80 118 70 117 60 1 1.5 2 2.5 3 3.5 4 4.5 5 0 10 20 30 40 50 60 70 80 Temperature (°C) VIN (V) 30 Temperature (°C) BLOCK DIAGRAM - SD 100mV VOUT Shutdow n + LBI VIN FB EXT= LOW EXT OSC + 1.22V + LBO 0.628V FB EXT= HIGH GND + - FB 100mV ANALOG INTEGRATIONS CORPORATION www.analog.com.tw 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510 4 AIC1630A HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER SPEC NO: DS-1630A-04 PIN DESCRIPTION PIN 1: SD - The AIC1630A goes in shutdown mode and consumes less than 10µ A when SD pin is pulled to ground and it goes in normal operating mode when the SD pin is pulled to a positive voltage above 100mV. PIN 2: VIN PIN 4: GND - Ground. - The noninverting input of the battery low detector, of which the inverting input is internally connects to 1.22V voltage reference. PIN 8: VOUT- The output voltage feedbacks to the IC through this pin. If output voltage was externally set, the VOUT pin can be tied to any low impedance node with voltage between the external power switch threshold and 7V the R1 VOUT = -1 R2 0.628 Resistor connected between FB pin and ground. PIN 7: LBI - Output voltage can either be internally set to 5 volt by grounding FB pin, or be externally set to an arbitrary voltage by applying to FB pin the divider voltage of two divider resistors. by R2= PIN 6: LBO - Open drain output of the battery low detector, with 45Ω “ON resistance” at VIN=2V. It is pulled low when the voltage on LBI pin is below 1.22V. PIN 3: EXT - Push-pull drive output to drive external power switch. VOUT voltage is given following equation: R1=Resistor connected between FB pin and VOUT pin. VOUT=Output voltage to be set. - Input supply. PIN 5: FB where APPLICATION EXAMPLES 95 90 100Ω VIN + L 50µH C1 100µF R3 1N5819 5nF C2 C3 2SC4672 Q1 + 100µF D1 LOAD 270Ω R4 SD VOUT VIN LBI EXT LBO GND FB AIC1630A Efficiency (% ) VOUT (+5V) V IN= 4.5V 85 80 V IN= 2.2V V IN= 3V V IN= 3.3V 75 V IN= 2V 70 65 60 0 100 200 300 400 500 600 700 800 Load Current (mA) Fig. 1 5V Output Step-Up Converter ANALOG INTEGRATIONS CORPORATION www.analog.com.tw 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510 5 AIC1630A HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER SPEC NO: DS-1630A-04 APPLICATION EXAMPLES (CONTINUED) 85 100Ω VIN (+12V) VIN=5V R3 VIN=4.5V + C1 VOUT SD 180K 220µF L VIN 47µH D2 1N5819 D1 + FB GND 1K 2SC4672 Q1 C3 LBO EXT 80 VIN=3.3V VIN=2.75V 75 1N4148 100µF OS-CON LOAD R1 LBI Efficiency (%) VOUT 10K R2 VIN=2.25V 70 AIC1630A R4 0 30 60 90 120 150 180 210 240 270 Load Current (mA) Note : VIN ≥ 2.2V Fig. 2 12V Output Step-Up Converter for Flash Memory 95 V IN = 2 0 V VS(+3/5V) VOUT (+36V) 90 C1 2SC4672 Q1 C3 33µF LBO EXT D1 + 17.8K AIC1630A R3 85 V IN = 1 2 V 80 V IN = 8 V V IN = 6 V 75 FB GND 120Ω R1 LBI VIN 1N5819 LOAD 1M 47µF 220µH L V IN = 1 6 V VOUT SD Efficiency (% ) + VIN V s= 5 V V IN = 5 V R2 70 0 10 20 30 40 50 60 70 Load Current (mA ) Fig. 3 36V Output Step-Up Converter for Color LCD 88 VS (+3/5V) D1 1N5819 C4 + SD C1 C2 47µF + 47µF 2SC4672 Q1 + 0.1µF 1N5819 D2 LOAD 150µH 10µF 1N5819 VOUT (-24V) C3 L D3 V IN = 1 5 V 86 C6 5nF 1.2K R3 VOUT VIN LBI EXT LBO GND FB AIC1630A C5 5nF 90K R1 V IN = 1 0 V 84 Ef ficiency (% ) VIN V IN = 2 0 V 82 V IN = 5 V 80 78 76 74 2.4K R2 V s= 5 V 72 70 0 5 10 15 20 25 30 35 40 45 Load Current (m A ) Fig. 4 -24V Output Inverting Converter for LCD ANALOG INTEGRATIONS CORPORATION www.analog.com.tw 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510 6 AIC1630A HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER SPEC NO: DS-1630A-04 APPLICATION EXAMPLES (CONTINUED) 78 VIN + C3 2SC4672 Q1 + 5nF + 10µF 10µF C2 D2 120Ω 150Ω R4 R3 1N5819 LOAD C4 + 33µF 90K VIN LBI EXT LBO V IN= 4V 72 V IN= 3V 70 R1 68 66 64 62 FB GND 2.4K AIC1630A D4 1N5819 D3 VOUT SD C1 74 Efficiency (% ) 150µH D1 1N5819 VOUT (-24V) C5 220µF L V IN= 5V Vs= 3V 76 VS (+3/5V) V IN= 2V 60 R2 58 56 1N4148 0 5 10 15 20 25 Load Current (mA) Fig. 5 2V Input 20mA Load -24V Output Inverting Converter for LCD 95 VIN + 220µF C3 L 10µF C5 D2 C4 + 47µF C2 120Ω 430Ω R4 VIN LBI EXT LBO R3 GND 1N5819 D3 + 47µF VOUT SD 2SC4672 Q1 + 90 C1 10µF 180K R1 FB AIC1630A 1N5819 VOUT (-12V) + 50µH D1 1N5819 V IN= 20V VS (+3/5V) Efficiency (% ) VOUT (+12V) 10K V IN= 16V 85 V IN= 12V 80 V IN= 8V V IN= 6V 75 R2 Vs= 5V V IN= 5V D4 1N4148 70 0 10 20 30 40 Load Current (mA) 50 60 70 Fig. 6 12V Dual Output Converter for computer for computer Interfacing SI9430DY R3 100K + 100µF C1 5.1V ZD1 R4 270Ω 9014 Q1 D1 91 + 50µH C2 220µF V OUT (+5V) 87 VIN= 12V 85 + 10µF C3 680P R5 SD VOUT LBI R1 45K C4 EXT LBO GND FB 36K Quicient Current = 300µA V IN= 8V 83 VIN MPSA13 89 Efficiency (% ) V IN L MBR360 Q2 L O A D R2 6.4K AIC1630A 81 VIN= 16V VIN= 20V 79 77 75 0 1 1.5 2 2.2 2.5 3 3.5 4 Load Current (A) Fig. 7 5V Output Step-Down Converter -1 ANALOG INTEGRATIONS CORPORATION www.analog.com.tw 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510 7 AIC1630A HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER SPEC NO: DS-1630A-04 APPLICATION EXAMPLES L 100µF C1 Q1 5.1V 9014 ZD1 270Ω R4 Q2 Q3 1N4148 9014 R3 100K + MBR360 SI9430DY VIN (CONTINUED) 50µH D1 VOUT (+5V) + 220µF 90 V IN= 8V C2 Efficiency (% ) D2 + 10µF C3 SD VOUT VIN C4 MPSA13 680P R5 LBO GND FB 36K L O A D R1 45K LBI EXT V IN= 12V 85 V IN= 16V V IN= 20V R2 6.4K AIC1630A 80 0 Quicient Current = 300µA 1 2 3 4 Load Current (A) 5 Fig. 8 5V Output Step-Down Converter -2 + ZD1 4.7V VIN LBI EXT LBO GND FB AIC1630A D3 R5 RIF + 0.82 100µF C4 0.1µF C5 VBT + 22K C3 R7 C3 10nF VREF GND VDD TIMER VOUT MODE LED 1.5K R12 1.5K R13 AIC1761/1766 100K R6 Note: R9 R11 120K 12K R2 33K 100µF C1 R3 + C2 100k 33K VBAT R4 220µF IRFD020 Q1 SD VOUT 1n4148 R1 240K D2 150 +VIN (VIN<VBAT) 220 R10 Trickle BATTERY PACK Charging 1N5819 4.7µF 50µH L1 2A FUSE 1N4148 D3 VIN ≥ 2.2V Charging current =0.8A, Auto-Cut-Off at 0.75/0.25% -∆V point and Fault Conditions. (RIF sets the Charging Current) VIN must be lower than VBAT. Short Circuit Condition is protected with a 2A Fuse. Fig. 9 Step-Up Rechargeable Battery Charger ANALOG INTEGRATIONS CORPORATION www.analog.com.tw 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510 8 AIC1630A HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER SPEC NO: DS-1630A-04 APPLICATION EXAMPLES (CONTINUED) LBO GND FB Q2 12K R5 2N3904 R2 750 AIC1630A 4.7V ZD1 C1 LBI EXT RIT 75K R6 330 2N2222 Q5 2N3904 Q4 + 100K R10 C2 + +VIN (+VIN can be either higher or lower than the battery voltage) 220 R12 100µF C4 120K 22K R9 RIF 0.82 R11 0.1µF C5 + C3 4.7µF = 0.8A @VIN<VBAT =(VIN - VBAT - 0.5)/0.82 @VIN>VBAT Trickle charge Current = 30mA. (RIF sets Fast Charge Current, RIT sets Trickle Charge Current) Typical Efficiency = 75%. With Short Circuit Protection. Fig. 10 Step-Up/Down Rechargeable Battery Charger VBT VREF GND VDD TIMER VOUT MODE LED 1.5K R14 AIC1761/1766 120K R15 Note: 1.5K R13 Trickle + VOUT VIN 240K R4 47K R3 220µF SD BATTERY PACK TIP32C Q3 Charging 100µF 50µH 150 R1 IRFD020 Q1 L1 IN5819 D2 VBAT Fast Charge Current PHYSICAL DIMENSIONS 8 LEAD PLASTIC DIP 8 LEAD PLASTIC SO 4.80±0.20 9.3±0.3 6.0±0.2 3.8±0.2 6.2±0.2 8.0±0.5 0.6±0.3 2.5±0.1 10°max 8.5±1.0 0.5±0.1 2.54±0.10 0.45±0.10 0.2 ± 0.1 3.2±0.3 1.5±0.2 0.25±0.10 1.27±0.10 3.3±0.1 0.015X45° 8° max. UNIT: mm ANALOG INTEGRATIONS CORPORATION www.analog.com.tw 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510 9