|
|
PDF XC9106 Data sheet ( Hoja de datos )
| Número de pieza | XC9106 | |
| Descripción | Step-Up DC/DC Converters | |
| Fabricantes | Torex Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de XC9106 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
|
No Preview Available !
XC9106/XC9107 Series
ETR0405_004
PWM Control, PWM/PFM Switching Control,
Step-Up DC/DC Converters, Externally Applied Vref
■GENERAL DESCRIPTION
☆GreenOperation-Compatible
The XC9106 / XC9107 series are step-up DC/DC controller ICs with an externally applied reference voltage (Vref).
Output voltage will be set with external resistors (RFB1 and 2) and Vref value. The series make it easy to control output
voltage externally and are suited to software applications that need to vary voltage, such as LCD power supply for PDA.
Output will be stable no matter which load capacitors are used but if a low ESR capacitor is used, RSENSE of about 0.1Ω will
be required and phase compensation will be achieved. This makes the use of ceramic capacitors much easier, and allows for
lower output ripple and reduced PCB area requirements. Tantalum and electrolytic capacitors can also be used, in which
case, RSENSE becomes unnecessary.
Oscillation frequencies of high clock, low ripple 300kHz and low supply current 100kHz are available.
The XC9107 series are PWM/PFM automatic switching controlled. Control switches from PWM to PFM during light loads with
the XC9107 and the series is highly efficient from light loads to large output currents. By bringing the whole circuit down
while the series is in the stand-by mode (CE/PWM pin: low), supply current can be reduced to less than 1.0μA.
■APPLICATIONS
●Power supply for LCDs
●PDAs
●Cellular phones
●Palmtop computers
●Portable audio systems
●Various multi-function power supplies
■FEATURES
Input Voltage
: 0.9V ~ 10V
Power
Supply Voltage Range : 1.8V~10.0V and more than
Vref+0.7V
VREF Input Range
: 0.8V~2.5V (±2.0%)
Output Voltage
: Vref x external split resistor ratio
VOUT=Vref x (RFB1+RFB2)/RFB2
Oscillation Frequency : 300kHz, 100kHz (±15%)
Output Current
: More than 30mA
(VIN=3.3V, VOUT=20V,
when external components are
used as in the circuits below.)
Controls
: PWM (XC9106)
: PWM/PFM auto-switching
(XC9107)
High Efficiency
: 85% (TYP.)
Stand-by Current
: ISTB = 1.0μA (MAX.)
Load Capacitors
: Low ESR capacitors compatible
Externally Applied Reference Voltage (Vref)
Packages
: SOT-25, USP-6B
Environmentally Friendly : EU RoHS Compliant, Pb Free
■TYPICAL APPLICATION CIRCUIT
RSENSE : 100m Ω
for Ceramic CL SD : MA737
*
CFB : 27pF
VOUT = 8V~25V RFB1 : RFB2 :
IOUT = 30mA 270k Ω 30k Ω
Ceramic CL :
10μF
0.8V~2.5V
D/A converter
1
2
3
CE/Vref
5
4
L : 10μH
Nch Pow er
MOS FET
2SK2159
CIN
VIN = 3.3V
* RSENSE is of no use in light load (uncontinuous mode)
applications such as a small LCD, even using ceramic
capacitor.
■TYPICAL PERFORMANCE
CHARACTERISTICS
XC9107D003M R
Circuit as left
30 VDD=VIN=3.3V, IOUT=30mA
25
20
15
10
5
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Vref (V)
XC9107D003M R
30
Circuit as left
VDD=VIN=3.3V
25
2.5V
20
2.0V
15 1.5V
10
5 Vref=0.8V
0
0.1
1 10 100
IOUT (mA)
1000
1/11
1 page  
XC9106/XC9107
Series
■ELECTRICAL CHARACTERISTICS (Continued)
XC9106D003MR, XC9107D003MR
PARAMETER
Output Voltage
Reference
Voltage Range
SYMBOL
VOUT
Vref
FB Control Voltage
VFB
Supply Voltage Range
(*1)
VDD
Operation Start Voltage VST1
Oscillation
Start Voltage (*1)
VST2
Operation Hold Voltage VHLD
Supply Current 1
Supply Current 2
Stand-by Current
Oscillation Frequency
Maximum Duty Ratio
PFM Duty Ratio
IDD1
IDD2
ISTB
FOSC
MAXDTY
PFMDTY
Efficiency
EFFI
Soft-start Time
CE “High” Voltage
CE “Low” Voltage
EXT “High”
ON Resistance
EXT “Low”
ON Resistance
TSS
VCEH
VCEL
REXTH
REXTL
CE “High” Current
ICEH
CE “Low” Current
FB “High” Current
FB “Low” Current
ICEL
IFBH
IFBL
(FOSC=300kHz)
CONDITIONS
Vref = 0.9V
MIN.
8.820
0.8
Vref = 0.8V
Vref = 0.9V
Vref = 2.5V
VDD as shown right and
(Vref applied voltage＋0.7V)
Recommended circuit using 2SD1628,
IOUT=1.0mA
No external connections
CE/Vref=0.9V, Voltage applied, FB=0V
Recommended circuit using 2SD1628,
IOUT=1.0mA
Same as VST2, VDD=3.3V
Same as IDD1, FB=1.2V
Same as IDD1, CE/Vref=0V
Same as IDD1
Same as IDD1
No Load (XC9106 series)
Recommended circuit using
XP161A1355
Vref=0.9V
Same as IDD1
Same as IDD1
0.784
0.882
2.450
1.8
-
-
-
-
-
-
255
75
24
-
5.0
0.65
-
Same as IDD1, VEXT=VOUT-0.4V
-
Same as IDD1, VEXT=0.4V
Same as IDD2, CE=0.8V
Same as IDD2, CE=2.5V
Same as IDD2, CE=0V
Same as IDD2, FB=VDD
Same as IDD2, FB=1.0V
-
-1.0
0.0
-
-
-
TYP.
9.000
-
0.800
0.900
2.500
-
-
-
-
62
16
-
300
81
32
85
10.0
-
-
24
16
-
-
-
-
-
MAX.
9.180
2.5
0.816
0.918
2.500
10.0
0.9
0.8
0.7
88
22
1.0
345
87
40
-
20.0
-
0.20
36
24
0.0
2.5
-0.1
0.1
-0.1
Ta=25 OC
UNITS CIRCUIT
V①
V-
V④
V-
③
V
V④
③
V
μA ④
μA ④
μA ⑤
kHz ④
%④
%①
①
%
mS ①
V⑤
V⑤
④
Ω
④
Ω
μA ⑤
μA ⑤
μA ⑤
μA ⑤
Test Conditions: Unless otherwise stated, CL: Ceramic, recommended MOSFET should be connected.
VDD= 3.3V
→ Vref= 0.09V, RFB1,2 × 10
NOTE :
VIN= 3.3V
→ IOUT= 50mA
*1: Although the IC starts step-up operations from a VDD of 0.8V, the output voltage and oscillation frequency are stabilized at
VDD ≧ 1.8V and (Vref applied voltage＋0.7V). Therefore, a VDD of more than 1.8V and (Vref applied voltage＋0.7V) is
recommended when VDD is supplied from VIN or other power sources.
■TYPICAL APPLICATION CIRCUIT
NchPower
MOSFET
Rb
Cb
When obtaining VDD from a source other than VOUT, please insert a capacitor CDD between the
VDD pin and the GND pin in order to provide stable operations.
Please wire CL & CIN between the VOUT/VDD pin and the GND pin. Strengthen the wiring
sufficiently. When using a capacitor other than ceramic or low ESR at CL, please take away
RSENSE and short.
Insert Rb and CB when using a
bipolar NPN Transistor.
5/11
5 Page 
XC9106/XC9107
Series
1. The products and product specifications contained herein are subject to change without
notice to improve performance characteristics. Consult us, or our representatives
before use, to confirm that the information in this datasheet is up to date.
2. We assume no responsibility for any infringement of patents, patent rights, or other
rights arising from the use of any information and circuitry in this datasheet.
3. Please ensure suitable shipping controls (including fail-safe designs and aging
protection) are in force for equipment employing products listed in this datasheet.
4. The products in this datasheet are not developed, designed, or approved for use with
such equipment whose failure of malfunction can be reasonably expected to directly
endanger the life of, or cause significant injury to, the user.
(e.g. Atomic energy; aerospace; transport; combustion and associated safety
equipment thereof.)
5. Please use the products listed in this datasheet within the specified ranges.
Should you wish to use the products under conditions exceeding the specifications,
please consult us or our representatives.
6. We assume no responsibility for damage or loss due to abnormal use.
7. All rights reserved. No part of this datasheet may be copied or reproduced without the
prior permission of TOREX SEMICONDUCTOR LTD.
11/11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet XC9106.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| XC9101 | PWM Controlled Step-Up DC/DC Controller | Torex Semiconductor |
| XC9103 | Step-Up DC/DC Converters | Torex Semiconductor |
| XC9104 | Step-Up DC/DC Converters | Torex Semiconductor |
| XC9105 | Step-Up DC/DC Converters | Torex Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |