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PDF XC9501 Data sheet ( Hoja de datos )
| Número de pieza | XC9501 | |
| Descripción | 2ch. Step-up DC/DC Controller ICs. | |
| Fabricantes | Torex Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de XC9501 (archivo pdf) en la parte inferior de esta página. Total 24 Páginas | ||
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XC9501 Series
2ch. Step-up DC/DC Controller ICs.
Mar. 17, 2003 Ver. 5
" 2ch DC/DC Controller (Step-up + Step-up)
" Input Voltage Range 0.9V ~ 10.0V
" Output Voltage Externally Set-Up
" Switching Frequency 180kHz (±15%)
" Max Duty Ratio 80% (TYP.)
" PWM, PWM/PFM Switching Control
" High Efficiency 83% (TYP.)
" MSOP-10 Package
! Applications
# PDAs
# Palm top computers
# Portable Audio Systems
# Various Multi-function Power Supplies
! Features
Input Voltage Range
:0.9V ~ 10V
Power Supply Voltage Range :2.0V ~ 10V
! General Description
The XC9501 series are PWM controlled, PWM/PFM automatic
switching controlled, multi-functional, dual step-up DC/DC
converter controller ICs.
With 0.9V (±2%) of standard voltage supply internal, and using
externally connected components, output voltage can be set
freely on both DC/DC controllers between 1.5V to 30V.
With a 180kHz frequency, the size of the external components
can be reduced. 300kHz and 500kHz switching frequencies
are also available as custom-designed products.
The control of the XC9501 series can be switched between
PWM control and PWM/PFM automatic switching control using
external signals. Control switches from PWM to PFM during
light loads when automatic switching is selected and the series
is highly efficient from light loads to large output currents.
Noise is easily reduced with PWM control since the switching
frequency is fixed.
The XC9501 series provides the option of being able to select
the control suited to the application.
Soft-start time is internally set to 10msec which offers
protection against rush currents when the power is switched on
and also against voltage overshoot.
Output Voltage Range
Switching Frequency
Output Current
Stand-by Current
Soft-start internally set-up
MSOP-10 Package
:1.5V ~ 30V
Can be set freely with 0.9V(±
2.0%) of reference voltage
supply & external components.
:180kHz ±15%
:300kHz & 500kHz available as custom
:more than 200mA(VIN=1.8V, VOUT=3.3V)
:3.0µA (MAX)
! Typical Performance Characteristics
Efficiency vs. Output Current
XC9501B092A (180kHz,3.3V)
L1=22µH(CDRH5D28), CL1=47µF(Tantalum)
SD1:MA2Q737, Tr1:XP161A1355P
100
90 PWM/PFM Switching Control
80
70
60
50 VIN=1.8V 2.4V
40
30 PWM Control
20
10
0
0.1 1 10 100 1000
! Typical Application
( XC9501B092A Input: 2 cells, Output 1: 3.3V, Output 2: 5.0V )
Output Current 1 IOUT1 (mA)
VOUT1=3.3V
IOUT1=~200mA
SD1
:MA2Q737
L1:22uH
CDRH5D28
VIN
Tr1:Nch
=1.8V~3.2V
MOSFETXP161A1355P
CIN
:47µF
L2:22µH
CDRH5D28
SD2
:MA2Q737
Tr2:Nch MOSFET
XP161A1355P
VOUT2=5.0V
IOUT2=~100mA
RFB11 CFB1
:200kΩ :62pF
+
CL1 47?µF
RFB12
:75kΩ
VPWM1
VEN1
1 EXT1
2 VDD
3 FB1
4 PWM1
5 EN1
EXT2 10
GND 9
FB2 8
PWM2 7
EN2 6
CFB2
:160pF
VPWM2
VEN2
RFB21
:82kΩ
+
47µF CL2
RFB22
:18kΩ
1
1 page  
XC9501 Series
2ch. Step-up DC/DC Controller ICs.
! Electrical Characteristics
XC9501B093A
Common Characteristics
(FOSC=300kHz)
Ta=25OC
PARAMETER
Supply Voltage (note 1)
SYMBOL
VDD
CONDITIONS
MIN.
2.0
VDD ≥ 2.0V, IOUT1, 2 =1mA VOUT1, VOUT2 0.9
TYP.
-
-
MAX. UNITS CIRCUIT
10.0 V
- V1
Output Voltage Range
(note 4)
Supply Current 1
VIN ≥ 0.9V, IOUT1, 2=1mA
VOUTSET (note 2)
VIN ≥ 0.9V, IOUT1, 2=1mA
(note 3)
IDD1 FB1,2=0V
VOUT1
VOUT2
VOUT1
VOUT2
2.0
0.9
0.9
2.0
-
- 10.0
--
--
- 10.0
110 250
V
V
V
V
µA
2
3
4
Supply Current 1-1
Supply Current 1-2
Supply Current 2
Stand-by Current
Switching Frequency
EN1,2 "High" Voltage
EN1,2 "Low" Voltage
EN1,2 "High" Current
EN1,2 "Low" Current
PWM1,2 "High" Current
PWM1,2 "Low" Current
FB1,2 "High" Current
FB1,2 "Low" Current
IDD1-1
IDD1-2
IDD2
ISTB
FOSC
VENH
VENL
IENH
IENL
IPWMH
IPWML
IFBH
VFBL
EN1=3.0V, EN2=0V, FB1=0V
EN2=3.0V, EN1=0V, FB2=0V
FB1=0V, FB2=1.0V
FB1=1.0V, FB2=0V
FB1,2=1.0V
Same as IDD1, EN1=EN2=0V
Same as IDD1
FB1,2=0V
FB1,2=0V
FB1,2=3.0V
EN1,2=0V, FB1,2=3.0V
FB1,2=3.0V, PWM=3.0V
FB1,2=3.0V,PWM=0V
FB1,2=3.0V
FB1,2=1V
- 80 150 µA
- 90 200 µA
- 80 160 µA
- - 3.0 µA
255 300 345 kHz
0.65 - - V
- - 0.20 V
- - 0.50 µA
- - -0.50 µA
- - 0.50 µA
- - -0.50 µA
- - 0.50 µA
- - -0.50 µA
4
4
4
4
4
4
4
4
4
4
4
4
4
Unless otherwise stated, VDD=3.0V, PWM1,2=3.0V, EN1, 2 =3.0V
Output 1 Characteristics
Step-up Controller
PARAMETER
SYMBOL
CONDITIONS
FB1 Voltage
VFB1 VDD=3.0V, VIN=1.5V, IOUT1=10mA
Operation Start-up
Voltage1
Using Tr: 2SD1628,
VST1-1 IOUT=1.0mA, RFB11=200kΩ, RFB12=75kΩ
(note 2)
VDD ≠ VOUT1: IOUT1=1mA
Oscillation Start-up Voltage1 VST2-1 FB1=0V
Maximum Duty Ratio1 MAXDTY1 Same as IDD1
PFM Duty Ratio1
PFMDTY1 No Load, VPWM1=0V
Efficiency1
EFFI1 IOUT1=100mA, Nch MOSFET:XP161A1355P
Soft-Start Time1
TSS1 VOUT1 × 0.95V, CE1=0V→0.65V
EXT1 "High" ON Resistance REXTBH1 FB1=0, EXT1=VDD-0.4V
EXT1 "Low" ON Resistance REXTBL1 EN1=FB2=0V, EXT1=0.4V
PWM1 "High" Voltage VPWMH1 No Load
PWM1 "Low" Voltage VPWML1 No Load
MIN.
0.882
TYP.
0.900
Ta=25OC
MAX. UNITS CIRCUIT
0.918 V
5
- - 0.9 V 2
- - 2.0
- - 0.8
75 80 85
22 30 38
- 83 -
5.0 10.0 20.0
- 28 47
- 22 30
0.65 -
-
- - 0.20
V
V
%
%
%
mS
Ω
Ω
V
V
1
4
4
6
6
6
7
7
6
6
Unless otherwise stated, VDD=EN1=PWM1=3.0V, EN2=PWM2=GND, EXT2=OPEN, FB2=OPEN, VIN=1.8V
Output 2 Characteristics
Step-up Controller
PARAMETER
SYMBOL
CONDITIONS
MIN. TYP.
FB2 Voltage
VFB2 VDD=3.0V, VIN=1.5V, IOUT2=10mA
0.882 0.900
Operation Start-up
Voltage2
Using Tr: 2SD1628,
VST1-2 IOUT2=1.0mA, RFB21=200kΩ,RFB22=75kΩ
-
-
(note 3)
VDD ≠ VOUT2 : IOUT2=1mA
--
Oscillation Start-up Voltage2 VST2-2 FB2=0V
--
Maximum Duty Ratio2 MAXDTY2 Same as IDD1
75 80
PFM Duty Ratio2
PFMDTY2 No Load, VPWM2=0V
22 30
Efficiency2
EFFI2 IOUT2=100mA, Nch MOSFET:XP161A1355P - 83
Soft-Start Time2
TSS2 VOUT2 × 0.95V, EN2=0V→0.65V
5.0 10.0
EXT2 "High" ON Resistance REXTBH2 FB2=0, EXT2=VDD-0.4V
- 28
EXT2 "Low" ON Resistance REXTBL2 EN2=FB2=0V, EXT2=0.4V
- 22
PWM2 "High" Voltage VPWMH2 No Load
0.65 -
PWM2 "Low" Voltage VPWML2 No Load
--
Unless otherwise stated, VDD=EN2=PWM2=3.0V, PWM1=EN1=GND, EXT1=OPEN, FB1=OPEN, VIN=1.8V
Ta=25OC
MAX. UNITS CIRCUIT
0.918 V
8
0.9 V
3
2.0 V
0.8 V
85 %
38 %
-%
20.0 mS
47 Ω
30 Ω
-V
0.20 V
1
4
4
9
9
9
7
7
9
9
5
5 Page 
XC9501 Series
2ch. Step-up DC/DC Controller ICs.
! Peripheral Components Used for Test Circuits
Circuit 1, Circuit 2, Circuit 3
L1, L2 : 22µH (SUMIDA CDRH5D28) : XC9501B092A
15µH (SUMIDA CDRH5D28) : XC9501B093A
10µH (SUMIDA CDRH5D28) : XC9501B095A
SD1, SD2 : CRS02 (Schottky diode, TOSHIBA)
EC10QS06 (Schottky diode, NIHON INTER)
CL1, CL2 : 16MCE476MD2 (Tantalum, NIHON CHEMICON)
35MCE335MB2 (Tantalum, NIHON CHEMICON)
CIN : 16MCE476MD2 (Tantalum, NIHON CHEMICON)
NPN Tr1, 2: 2SA1628 (SANYO)
CPH3215 (SANYO)
CPH3210 (SANYO)
RFB : Please use by the conditions as below.
RFB11 + RFB12 ≤ 1MΩ
RFB21 + RFB22 ≤ 1MΩ
RFB11 / RFB12 = (Setting Output Voltage / 0.9) -1
RFB21 / RFB22 = (Setting Output Voltage / 0.9) -1
CFB : Please adjust as below:
fzfb=1/(2 x π x CFB1 x RFB11) = 1kHz ~50kHz ( 12kHz usual)
fzfb=1/(2 x π x CFB2 x RFB21) = 1kHz ~50kHz ( 12kHz usual)
Circuit 6 and Circuit 9
L1, L2 : 22µH (SUMIDA CDRH5D28) : XC9501B092A
15µH (SUMIDA CDRH5D28) : XC9501B093A
10µH (SUMIDA CDRH5D28) : XC9501B095A
SD1, SD2: MA2Q737 (Schottky diode, MATSUSHITA)
CL1, CL2 : 16MCE476MD2 (Tantalum, NIHON CHEMICON)
CIN : 16MCE476MD2 (Tantalum, NIHON CHEMICON)
N-ch MOSFET1 : XP161A1355P (TOREX)
Circuit 5 and Circuit 8
L1, L2 :
SD1, SD2 :
CL1, CL2 :
CIN :
N-ch MOSFET1 :
22µH (SUMIDA CDRH5D28)
MA2Q737 (Schottky, MATSUSHITA)
16MCE476MD2 (Tantalum, NIHON CHEMICON)
16MCE476MD2 (Tantalum, NIHON CHEMICON)
XP161A1355P (TOREX)
11
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet XC9501.PDF ] | |
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