 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| XC9213 Series Preliminary ! ! ! ! ! ! ! ! Synchronous, Bootstrap Nch-Nch Drive Input Voltage Range : 2.5V ~ 25.0V Switching Frequency : 300kHz (15%) PWM/PFM Manual Switching Control Overcurrent Protection Circuit Built-In High Efficiency : 93% (TYP.) TSSOP-16 Package Ceramic Capacitor Compatible Driver Transistor Built-In Synchronous Step-Down DC/DC Controller Ics Input Voltage : 25V May 20, 2003 Ver. 1 " APPLICATIONS # PDAs # Mobile Phones # Note book computers # Portable Audio Systems # Various Multi-function Power Supplies " GENERAL DESCRIPTION XC9213 series is Nch-Nch drive, synchronous, step-down DC/DC controller ICs with a built-in bootstrap driver circuit. Output will be stable no matter which load capacitors, including a low ESR capacitor, are used. Resistance (RSENSE) of about 100m will be required as a current sense. The phase compensation is also run when a low ESR capacitor is used. In addition, the circuit is double protected by the ways of limiting the current while detecting overshoot current and making output shutdown at any given timing by a protection time setting capacitor (CPRO). The output voltage can be set freely within a range of 1.5V~15.0V with 1.0V (accuracy 1.5%) of internal reference voltage by using externally connected resistors (RFB1, 2). Synchronous rectification PWM control can be switched to non-synchronous 30mV current limit PFM/PWM automatic switchable control (= voltage between RSENSE pins) by using the MODE pin. The series has a built-in voltage detector for monitoring a selected voltage by external resistors. During stand-by (CE pin = low) all circuits are shutdown to reduce current consumption to as low as 3.0A or less. " FEATURES Input Voltage Range Output Voltage Range : 2.5V ~ 25.0V : 1.5V ~ 15.0V externally set Reference voltage : 1.0V (1.5%) Oscillation Frequency Output Current Control Current Limiter, Protection : 300kHz (15%) : More than 5A (VIN=5.0V, VOUT=3.3V) : PWM/PFM manual-switching control. : Current limit operates at voltage sense 150mV. Shutdown time can be adjusted by CPRO. High Efficiency : 93% (TYP., PWM mode @ VIN=5.0V, VOUT = 3.3V, 1A) Detect Voltage Function Stand-by Current Load Capacitor : Detects 0.9V / Open-drain output : ISTB = 3.0A (MAX.) : Low ESR (ceramic, etc.) capacitor compatible Package : TSSOP-16 " TYPICAL APPLICATION CIRCUIT " TYPICAL PERFORMANCE CHARACTERISTICS XC9213B103V (FOSC:300kHz,3.0V) VIN : 5.0V, Tr1,Tr2: IRF7313, L : 6.1uH (CDRH127-6H1), Cout : 150uF (OS) S D2 100 Efficiency EFFI (%) RS ENS E VIN VS E NS E BST EXT1 VDi n Lx V Do ut CB ST N1 80 60 40 20 0 0.01 0.1 1 Output Current IOUT (A) 10 PWM Synchronous Rectification PWM / PFM Non Synchronous Rectification V Di n VIN CIN V Dou t L VOUT CFB XC9213 VL CV L CS S CSS CPRO CP RO AGND M ODE CE FB EXT2 PGND N2 ( ) S D1 RFB 1 CL RFB 2 1 XC9213 Series Preliminary " PIN CONFIGURATION Driver Transistor Built-In Synchronous Step-Down DC/DC Controller Ics Input Voltage : 25V 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 TSSOP-16 (TOP VIEW) " PIN ASSIGNMENT PIN NUMBER 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PIN NAME VIN VSENSE VL CE AGND MODE CPRO CSS VDIN FB VDOUT PGND EXT2 LX EXT1 BST FUNCTION Input Voltage Current Detection Local Power Supply Chip Enable Analog Ground PWM / PFM Switch Protection Time Setting Capacitor Connection " SELECTION GUIDE # ORDERING INFORMATION XC9213B 1 SYMBOL PART NO. 2345 DESCRIPTION 1, 2 3 4 5 10 3 V R L Reference Voltage Fixed Oscillation Frequency : 300kHz Package Types : TSSOP-16 Device Orientation : Embossed Tape, Standard Feed Device Orientation : Embossed Tape, Reverse Feed 2 XC9213 Series Preliminary " BLOCK DIAGRAM CE Control Logic Driver Transistor Built-In Synchronous Step-Down DC/DC Controller Ics Input Voltage : 25V CE CPRO Internal Blocks Latch Protection Circuit Current Limit & Current Feedback VIN Short Protection UVLO Comparator Circuit VSENSE FB VDIN VDOUT + UVLO Phase Compensation + BST EXT1 PWM Comparator + Buffer Driver Voltage Detector Vref with Soft Start - LX CSS + Ramp Error Amp. Generator Voltage Regulator + EXT2 PGND VL MODE Mode Control Logic AGND " ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNITS VIN pin voltage VSENSE pin voltage VL pin voltage CE pin voltage MODE pin voltage CPRO pin voltage CSS pin voltage VDIN pin voltage FB pin voltage VDOUT pin voltage EXT2 pin voltage Lx pin voltage EXT1 pin voltage BST pin voltage Power Dissipation Operational Ambient Temperature Storage Temperature VIN VSENSE VL CE MODE CPRO CSS VDIN FB VDOUT EXT2 Lx EXT1 BST Pd Topr Tstg - 0.3 ~ 30.0 - 0.3 ~ 30.0 - 0.3 ~ 6.0 - 0.3 ~ 30.0 - 0.3 ~ 30.0 - 0.3 ~ 6.0 - 0.3 ~ 6.0 - 0.3 ~ 6.0 - 0.3 ~ 6.0 - 0.3 ~ 30.0 - 0.3 ~ 6.0 - 0.3 ~ 30.0 - 0.3 ~ 30.0 - 0.3 ~ 30.0 350 - 40 ~ + 85 - 55 ~ + 125 V V V V V V V V V V V V V V mW O C O C 3 XC9213 Series Preliminary " ELECTRICAL CHARACTERISTICS XC9213B103 PARAMETER Input Voltage Output Voltage Setting Range FB Control Voltage UVLO Voltage Supply Current 1 Supply Current 2 Stand-by Current Oscillation Frequency Max. Duty Ratio 1 Max. Duty Ratio 2 PFM Duty Ratio SENSE Voltage CPRO time Soft-Start Time Efficiency CE "H" Voltage CE "L" Voltage MODE "H" Voltage MODE "L" Voltage EXT1 "H" Resistance EXT1 "L" ON Resistance EXT2 "H" ON Resistance EXT2 "L" ON Resistance CE "H" Current CE "L" Current MODE "H" Current MODE "L" Current CSS "H" Current CSS "L" Current FB "H" Current FB "L" Current $ Regulator PARAMETER Output Voltage Load Stability Input Stability $ Detector PARAMETER Detect Voltage Hysteresis Range VD Input Current Delay Time VDIN "H" Current VDIN "L" Current VDOUT " H" Current VDOUT " L" Current SYMBOL VIN VOUTSET VFB UVLO IDD1 IDD2 ISTB FOSC MAXDTY1 MAXDTY2 PFMDTY VSENSE TPRO TSS EFFI VCEH VCEL VPWMH VPWML REXT1H REXT1L REXT2H REXT2L ICEH ICEL IMODEH IMODEL ICSSH ICSSL IFBH IFBL Driver Transistor Built-In Synchronous Step-Down DC/DC Controller Ics Input Voltage : 25V (FOSC = 300kHz) CONDITIONS MIN. 2.5 1.5 255 1.4 TYP. 1.0 1.5 550 450 300 95 98 2 150 100 300 93 1.4 18 10 18 3 -0.7 -2.0 MAX. 25.0 15.0 3.0 345 0.5 0.5 0.1 -0.1 0.1 -0.1 0.1 -0.1 Ta=25OC UNIT V V V V A A A kHz % % S mV S S % V V V V A A A A A A A A Voltage which EXT1 pin starts oscillation No external components, CE=VIN, FB=0.9V No external components, CE=VIN, FB=1.1V No external components, CE=FB=0V Same as IDD1 Same as IDD1 Same as IDD2 MODE=0V, IOUT=1mA, No RSENSE CPRO=100pF CSS=100pF, VOUT x 0.95, CE=0V ! 3V IOUT=1A No external components, FB=0V, Voltage which EXT pin starts oscillation No external components, FB=0V, Voltage which EXT pin voltage holding "L" level No load No load FB=0.9V, EXT1=3.6V FB=1.1V, EXT2=0.4V FB=1.1V, EXT1=3.6V FB=0.9V, EXT2=0.4V CE=5.0V CE=0V MODE=5.0V MODE=0V CSS=3.8V CSS=0V FB=5.0V FB=1.1V SYMBOL VLOUT " VOUT " VOUT " VIN x VOUT CONDITIONS IOUT=10mA 1mAIOUT30mA IOUT=10mA VOUTVL + 1.0VVIN25.0V MIN. - TYP. 4.0 100 0.2 MAX. - UNIT V mV %/V SYMBOL VDF VHYS VDIOUT tDLY IVDINH IVDINL IVDOUTH IVDOUTL CONDITIONS VDOUT=0.5V VDR ! VOUT inversion VDIN=5.0V VDIN=0V VDOUT=5.0V VDOUT=0V MIN. - TYP. 0.9 6 15 - MAX. 0.1 0.1 -0.1 -0.1 -0.1 UNIT V % mV mS A A A A Test conditions : Test circuits : Unless otherwise stated, VOUT = 3.0V, VIN = 5.0V, CE = 5.0V, MODE = 5.0V Tr 1 : Tr 2 : CL : CIN : SD 1 : RFB 1 : RFB 2 : 2SK2857 (NEC) 2SK2857 (NEC) 22F (OS-CON) 22F (OS-CON) CRS02 (Schottky barrier diode) 200k 110k CFB : 68pF RSENSE : 0 CPRO : CSS : CVL : CBST : 0F 100pF 1F 0.1F 4 XC9213 Series Preliminary " EXTERNAL COMPONENTS Driver Transistor Built-In Synchronous Step-Down DC/DC Controller Ics Input Voltage : 25V RSENSE : Current Limit Value = 150mV / RSENSE 5 |
Price & Availability of XC9213
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |