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L6727 Datenblatt(PDF) 4 Page - STMicroelectronics

Teilenummer L6727
Bauteilbeschribung  Single phase PWM controller
PDF  34 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6727 Datenblatt(HTML) 4 Page - STMicroelectronics

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Typical application circuit and block diagram
L6727
4/34
Doc ID 12933 Rev 4
1
Typical application circuit and block diagram
1.1
Application circuit
Figure 1.
Typical application circuit
1.2
Block diagram
Figure 2.
Block diagram
HS
LS
VIN = 1.5V to 19V (**)
L
COUT
Vout
LOAD
CHF
CBULK
RD
CSN
RSN
CBOOT
RgHS
RgLS
D
1
2
8
BOOT
UGATE
PHASE
LGATE
4
CDEC
FB
6
RFB
COMP /
DIS / OC
7
RF
CF
CP
GND
VCC
ROS
VCC = 5V to 12V
ROCSET
(*)
5
3
L6727 Reference Schematic
(*) ROCSET not to be connected when VCC > 5V
(**) Up to 12V with Vcc > 5V
BOOT
LGATE
UGATE
GND
HS
LS
VCC
ERROR
AMPLIFIER
+
-
0.8V
300 kHz
OSCILLATOR
PWM
PHASE
CONTROL LOGIC
& PROTECTIONS
CURRENT READ
& OCP
DISABLE
L6727



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