|
|
PDF EM5301G Data sheet ( Hoja de datos )
| Número de pieza | EM5301G | |
| Descripción | PWM Controller | |
| Fabricantes | Excelliance MOS | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de EM5301G (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
|
No Preview Available !
12V Synchronous Buck PWM Controller
EM5301F/G
General Description
EM5301F/G is a synchronous rectified PWM
controller operating with 12V supply voltage. This
device operates at 160/200 kHz and provides an
optimal level of integration to reduce size and cost
of the power supply.
This part includes internal soft start, over
current protection, under voltage protection, over
voltage protection, and shutdown function. This
part is available in PSOP-8 package.
Ordering Information
Part Number Package Frequency
EM5301FGE PSOP-8 160kHz
EM5301GGE PSOP-8 200kHz
Applications
Notebook & Netbook
Graphic Cards & MB
Low Voltage Logic Supplies
Pin Configuration
Features
Operate from 12V Voltage Supply
0.8V VREF with 1.0% Accuracy
Voltage Mode PWM Control
160kHz or 200kHz Fixed Frequency
Oscillator
0% to 80% Duty Cycle
Internal Soft Start
Over Current Protection
Integrated Bootstrap Diode
Adaptive Non-Overlapping Gate Driver
Under Voltage Protection
Over Voltage Protection
Typical Application Circuit
EM5301
2013/5/2
Rev.A.1
1
1 page  
Open Loop DC Gain
Gain-Bandwidth Product
AO
GBW
EM5301F/G
88 dB
15 MHz
Maximum Duty
DMAX
80 %
PWM Controller Gate Drivers
Upper Gate Sourcing Current
Upper Gate Sinking Current
Upper Gate RDS(ON) Sinking
Lower Gate Sourcing Current
Lower Gate Sinking Current
Lower Gate RDS(ON) Sinking
PHASE Falling to LGATE Rising
Delay
LGATE Falling to UGATE Rising
Delay
Reference Voltage
IUG_SRC
IUG_SNK
RUG_SNK
ILG_SRC
ILG_SNK
RLG_SNK
VBOOT - VPHASE = 12V,
VBOOT - VUGATE = 6V
VBOOT - VPHASE = 12V,
VUGATE – VPHASE = 6V
VBOOT - VPHASE = 12V,
VUGATE – VPHASE = 0.1V
VCC – VLGATE = 6V
VLGATE = 6V
VLGATE = 0.1V
VCC = 12V; (VUGATE - VPHASE)< 1.2V to
VLGATE > 1.2V
VCC = 12V; VLGATE < 1.2V to (VUGATE -
VPHASE) > 1.2V
-1.2
1.5
24
-1.2
1.5
12
30 90
30 90
A
A
Ω
A
A
Ω
ns
ns
Nominal Feedback Voltage
Protection section
VFB
0.792 0.8 0.808 V
FB Under Voltage Protection
VFB_UVP FB falling
68 75 82 %
FB Over Voltage Protection
VFB_OVP FB rising
115 130 145 %
LGATE OC Setting Current
IOCSET
22 25 28 uA
Over Current Threshold1
VPHA_OC1 RLGATE=8Kohm
-400 mV
Soft-Start Interval
TSS
3.6 ms
COMP Enable Threshold
VCOMP/EN
0.2 V
Temperature Shutdown
TSD
165 ℃
Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for
stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may remain possibility to affect device reliability.
Note 2. θJA PSOP-8 packages is 52°C /W on JEDEC 51-7 (4 layers,2S2P) thermal test board with 50mm2 copper area.
Note 3. Devices are ESD sensitive. Handling precaution is recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
2013/5/2
Rev.A.1
5
5 Page 
Power MOSFET Selection
The EM5301F/G requires two N-Channel power
MOSFETs. These should be selected based upon
on-resistance, breakdown voltage, gate supply
requirement, and thermal management
requirements.
In high current applications, the MOSFET power
dissipation, package selection and heat sink are the
dominate design factor. The power dissipation
includes two loss components: conduction loss and
switching loss. The conduction losses are the
largest component of power dissipation for both
the upper and lower MOSFETs. These losses are
distributed between the two MOSFETs according
to duty factor.
The power dissipations in the two MOSFETs are
approximately the following equation:
PDUPPER
=
I2
OUT
* RDS(ON)
*D
+
0.5 *IOUT
* VIN
* FSW
* tSW
PDLOWER
=
I2
OUT
* RDS(ON)
* (1 - D)
Where D is the duty cycle, tSW is the combined
switch ON and OFF time.
EM5301F/G
2013/5/2
Rev.A.1
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet EM5301G.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| EM5301 | PWM Controller | Excelliance MOS |
| EM5301F | PWM Controller | Excelliance MOS |
| EM5301G | PWM Controller | Excelliance MOS |
| 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 |