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TFS7705H Folha de dados(PDF) 6 Page - Power Integrations, Inc.

Nome de Peças TFS7705H
Descrição Electrónicos  Combined Two-Switch Forward and Flyback Power Supply Controllers
PDF  42 Pages
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Fabricante Electrônico  POWERINT [Power Integrations, Inc.]
Página de início  http://www.powerint.com
Logo POWERINT - Power Integrations, Inc.

TFS7705H Folha de dados(HTML) 6 Page - Power Integrations, Inc.

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Rev. B 04/15
6
TFS7701-7708
www.power.com
PI-5263-021511
PWM
COMPARATOR
PWM
INPUT
THERMAL SD
CONTROLLED
TURN-ON
GATE DRIVER
CURRENT LIMIT
COMPARATOR
SOURCE (S)
S
R
Q
-
+
BYPASS (BP)
LINE-SENSE (L)
RESET (R)
FEEDBACK (FB)
and MAIN CURRENT
LIMIT SELECT
STOP
HSD1
HSD2
FAULT PRESENT
LV
SAW
D2MAX CLK2
MAIN REMOTE-ON
+
-
LEADING
EDGE
BLANKING
R
L
DUTY
CYCLE
LIMIT
D
MAX
GATE
CLK
ON
DRAIN (D)
VBG
LINE
SENSE
LV
POWER ON
ILIMIT
SELECT
VILIMIT
DSS
SOFT-START
PWM INPUT
REMOTE
OFF
REMOTE OFF
GATE
HS
3 V+VT
Figure 3.
Functional Block Diagram for Two-Switch Forward Converter.
HIGH-SIDE
OPERATING VOLTAGE (VDDH)
HSD1
HSD2
12 V
11.5 V
10.5 V
HIGH-SIDE
DRAIN (HD)
HIGH-SIDE
SOURCE (HS)
VDDH
UNDERVOLTAGE
PI-6912-032813
+
DISCRIMINATOR
VOLTAGE
REGULATOR
12 V
S
R
Q



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