FUJI MP2B5150

Power Electronics
M-Power2B series
A multi chip power device for a Multi-Oscillated Current Resonant type Converter
■ Features
・Power efficiency keeps high from a light load to a rated load.
・Low noise is achieved because of soft switching technique.
・Easy to design high reliabilit y SMPS due to various
protection function.
・External components drastic reduction from former-model.
■ Applications
・SMPS for AV equipments (LCD-TV and PDP etc.)
・SMPS for OA equipments (Copier etc.)
■ Circuit Configuration
■ Protection Function
・Overcurrent protection, overvoltage protection, low input
voltage protection
・High-side MOS short protection, overheat protection
■ Switching Waveforms
■ Line-up
Type name
MP2B5038
MP2B5052
MP2B5085
MP2B5150
MOSFET
Control Forming Sample
Mass
IC
Production
VDS RDS (on) VCC (on)
500V 0.38Ω
11.6V
500V 0.52Ω
500V 0.85Ω
500V 1.50Ω
F237
Ready
2009/4
■Comparison of external components
17 parts eliminated in total
* Comparison of primary-side circuit of our demo board
■Power Efficiency Characteristic
Output power vs efficiency characteristic
DC/DC
PFC+DC/DC
95.3%(Input:385Vdc, Output:24Vdc)
88.4%(AC100V, Output:24Vdc)
90.7%(AC200V, Output:24Vdc)
■Outline Figure
■Input power in the stand-by mode
Standby output power vs input power characteristic
PFC+DC/DC 0.5W and below (AC240V, Output:No load)
0.8W and below (AC240V, Output:0.2W)
* Board with PFC (PFC is stopped in standby mode)
■Pin assignment
Pin Symbol
Function
4.5
S1
MOSFET (Q1) source
6
IS
Current detection
8
VOC Power supply
9
GND GND
10
VREF Reference voltage output
11
FB
Input feedback signal for constant voltage control
12
CS
Select the Soft-start duration
13
BO
Brown out detection
14
VW Q1 turn-on and off timing detection
16
VH
Start-uP Circuit
18,19 D1,S2 Q1 drain
Q2 source
20
G2
Q2 gate
22,23
D2
Q2 drain
Information in this catalog is subject to change without notice.
2009-4