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ISL9506 Datasheet(PDF) 13 Page - Renesas Technology Corp

Part # ISL9506
Description  Multiphase PWM Controller with Programmable Output Voltage
PDF  28 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL9506 Datasheet(HTML) 13 Page - Renesas Technology Corp

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ISL9506
FN6722 Rev 0.00
Page 13 of 28
August 13, 2008
Simplified Application Circuit for DCR Current Sensing
Figure 39 shows a simplified application circuit for the ISL9506 converter with inductor DCR current sensing. The ISL6208
MOSFET gate driver has a force-continuous-conduction-mode (FCCM) input, that when disabled, allows the regulator to operate in
Diode Emulation for improved light load efficiency. As shown in the circuit diagram, the FCCM pin is connected to ISL9506, which
programs the CCM or DCM mode.
FIGURE 39. TYPICAL APPLICATION CIRCUIT FOR DCR SENSING
Ri
R1
R3
VO
V+5
ISL6208
VIN
LO
V+5
VCC
UGATE
LGATE
PHASE
BOOT
PWM
FCCM
GND
C3
C1
C2
V+5
7
VSEL<0:6>
DE_EN
VR_EN
CO
SOFT
VDIFF
OCSET
FB
LP
RBIAS
FCCM
PWM3
PWM2
VW
VO
COMP
VSELs
DE_EN
PMON
VIN
VR_EN
GND
PGOOD
PWM1
VDD
RTN
VIN
RN
CCS
VRHOT#
VSUM
RFSET
LP
RL CL
ISEN1
ISEN2
ISEN3
VSEN
PGD_N
PGD_N
ISL6208
VCC
UGATE
LGATE
PHASE
BOOT
PWM
FCCM
GND
VRHOT#
NTC
ISL9506
POWER GOOD
VSUM
ISEN3
VIN
V+5
ISL6208
VCC
UGATE
LGATE
PHASE
BOOT
PWM
FCCM
GND
VIN
DROOP
DFB
VO'
LO
RL CL
VSUM
ISEN2
VO'
LO
RL CL
VSUM
ISEN1
VO'
VO'
VSUM
3V3
V+3.3
DE_ENN
DE_ENN
PWR MONITOR
Remote
Sense
at POL



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