参数资料
型号: PFS763HG
厂商: POWER INTEGRATIONS INC
元件分类: 稳压器
英文描述: 4.16 A SWITCHING CONTROLLER, 70 kHz SWITCHING FREQ-MAX, PZIP16
封装: HALOGEN FREE AND ROHS COMPLIANT, PLASTIC, SIP-16
文件页数: 33/36页
文件大小: 4692K
代理商: PFS763HG
Rev. C 02/11
6
TFS757-764HG
www.powerint.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
11.1 V
9.9 V
HIGH-SIDE
DRAIN (HD)
HIGH-SIDE
SOURCE (HS)
VDDH
UNDERVOLTAGE
PI-5516-060410
+
S
R
Q
DISCRIMINATOR
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