|
|
PDF MB39C015 Data sheet ( Hoja de datos )
| Número de pieza | MB39C015 | |
| Descripción | 2 ch DC/DC Converter IC Built-in Switching FET | |
| Fabricantes | Fujitsu Component | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MB39C015 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
FUJITSU MICROELECTRONICS
DATA SHEET
DS04-27254-2E
ASSP for Power Management Applications
2 ch DC/DC Converter IC Built-in
Switching FET, Synchronous Rectification,
and Down Conversion Support
MB39C015
■ DESCRIPTION
The MB39C015 is a current mode type 2-channel DC/DC converter IC built-in voltage detection, synchronous
rectifier, and down conversion support. The device is integrated with a switching FET, oscillator, error amplifier,
PWM control circuit, reference voltage source, and voltage detection circuit.
External inductor and decoupling capacitor are needed only for the external component.
As combining with external parts enables a DC/DC converter with a compact and high load response characteristic,
this is suitable as the built-in power supply for such as mobile phone/PDA, DVDs, and HDDs.
■ FEATURES
• High efficiency
: 96% (Max)
• Output current (DC/DC)
: 800 mA/ch (Max)
• Input voltage range
: 2.5 V to 5.5 V
• Operating frequency
: 2.0 MHz (Typ)
• No flyback diode needed
• Low dropout operation
: For 100% on duty
• Built-in high-precision reference voltage generator : 1.30 V ± 2%
• Consumption current in shutdown mode
: 1 µA or less
• Built-in switching FET
: P-ch MOS 0.3 Ω (Typ) N-ch MOS 0.2 Ω (Typ)
• High speed for input and load transient response in the current mode
• Over temperature protection
• Packaged in a compact package
: QFN-24
■ APPLICATIONS
• Flash ROMs
• MP3 players
• Electronic dictionary devices
• Surveillance cameras
• Portable GPS navigators
• DVD drives
• IP phones
• Network hubs
• Mobile phones
etc.
Copyright©2008 FUJITSU MICROELECTRONICS LIMITED All rights reserved
2008.8
www.DataSheet.in
1 page  
MB39C015
■ BLOCK DIAGRAM
VIN
CTL1
3
OUT1
10
ON/OFF
×3
AVDD
5
DVDD1
DVDD2
11, 12 19, 20
ERR
− Amplifier
+
DVDD1
DAC
VREFIN1
8
MODE1
GND
9
VIN
CTLP
VDET
1
7
VREF
6
CTL2
2
OUT2
21
IOUT
Comparator
PWM
Logic
Control
LX1
13
VIN
VOUT1
1.30 V
ON/OFF
VREF
×3
ON/OFF
−
+
24
XPOR
ERR
− Amplifier
+
DVDD2
VREFIN2
23
MODE2
GND
22
IOUT
Comparator
PWM
Logic
Control
LX2
18
VOUT2
4
AGND
14, 15 16, 17
DGND1
DGND2
DS04-27254-2E
www.DataSheet.in
5
5 Page 
MB39C015
■ ELECTRICAL CHARACTERISTICS
(Ta = +25 °C, AVDD = DVDD1 = DVDD2 = 3.7 V, VOUT1/VOUT2 setting value = 2.5 V, MODE1/MODE2 = 0 V)
Parameter
Sym-
bol
Pin No.
Condition
Value
Unit
Min Typ Max
Input current
IREFIN 8, 23 VREFIN = 0.15 V to 1.3 V
− 100 0
+ 100 nA
Output voltage VOUT
VREFIN = 0.833 V,
OUT = −100 mA
2.45 2.50 2.55 V
Input stability
LINE
2.5 V ≤ AVDD = DVDD1 =
10, 21 DVDD2 ≤ 5.5 V*1
⎯
⎯
10 mV
Load stability LOAD
−100 mA ≥ OUT ≥ −800 mA ⎯ ⎯ 10 mV
OUT pin input
impedance
ROUT
OUT = 2.0 V
0.6 1.0 1.5 MΩ
LX Peak current IPK
Output shorted to GND
0.9 1.2 1.7 A
DC/DC Oscillation
converter frequency
13, 18
fosc
⎯
1.6 2.0 2.4 MHz
block
Rise delay time
tPG
2, 3, C1/C2 = 4.7 µF, OUT = 0 A,
10, 21 OUT1/OUT2 : 0 → 90% VOUT
⎯
45
80 µs
SW NMOS-FET
OFF voltage
VNOFF
⎯ ⎯ − 10* ⎯ mV
SW PMOS-FET
ON resistance
SW NMOS-FET
ON resistance
RONP
RONN
LX1/LX2 = −100 mA
13, 18
LX1/LX2 = −100 mA
⎯ 0.30 0.48 Ω
⎯ 0.20 0.42 Ω
LX leak current
ILEAKM
ILEAKH
0 ≤ LX ≤ VDD*2
− 1.0 ⎯
+ 8.0 µA
VDD = 5.5 V, 0 ≤ LX ≤ VDD*2 − 2.0 ⎯ + 16.0 µA
Overheating
TOTPH
+ 120* + 135* + 160* °C
protection
⎯⎯
(Junction Temp.) TOTPL
Protection
+ 95* + 110* + 125* °C
circuit
block
UVLO threshold VTHHUV
voltage
VTHLUV
5, 11,
12, 19,
⎯
2.17 2.30 2.43 V
2.03 2.15 2.27 V
UVLO
hysteresis width
VHYSUV
20
⎯ 0.08 0.15 0.25 V
XPOR threshold VTHHPR
voltage
VTHLPR
7
⎯
Voltage
detection
XPOR
hysteresis width
VHYSPR
⎯
circuit
block
XPOR output
voltage
XPOR output
current
VOL XPOR = 25 µA
24
IOH XPOR = 5.5 V
575 600 625 mV
558 583 608 mV
⎯ 17 ⎯ mV
⎯ ⎯ 0.1 V
⎯ ⎯ 1.0 µA
* : Standard design value
(Continued)
DS04-27254-2E
11
www.DataSheet.in
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MB39C015.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MB39C011A | 2 ch DC/DC Converter IC |  Cypress Semiconductor |
| MB39C015 | 2 ch DC/DC Converter IC Built-in Switching FET | Fujitsu Component |
| 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 |