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參數(shù)資料
| 型號： | HSMC3842 |
| 廠商： | HSMC CORP. |
| 英文描述： | HIGH PERFORMANCE CURRENT MODE CONTROLERS |
| 中文描述： | 高性能電流模式CONTROLERS |
| 文件頁數(shù)： | 8/10頁 |
| 文件大小： | 154K |
| 代理商： | HSMC3842 |
HI-SINCERITY
MICROELECTRONICS CORP.
Spec. No. : HP200202
Issued Date : 1998.08.01
Revised Date : 2002.12.03
Page No. : 8/10
H3842P
HSMC Product Specification
2N3903
2N3905
R
+
-
OSC
BIAS
1mA
+
EA
1
2
4
5
8
R
2R
R
Latched Shutdown
Error Amplifier Compensation
External Clock Synchronization
Ri
Rd
Rf
Cf
2R
R
+
+
-
1
2
2.5V
EA
1mA
5
From Vo
Rp
Rf
Cf
2R
R
+
+
-
1
2
2.5V
EA
1mA
5
From Vo
Rd
Ri
Cp
SCR must be selected for a holding current of less than
0.5mA at TA(min). The simple two transistor circuit can be
used in place of the SCR as shown. All resistors are 10K.
Error Amp compensation circuit for
stabilizing any current-mode topology
except for boost and flyback converters
operating with continuous inductor
current
Error Amp compensation circuit for
stabilizing current-mode boost and
flyback topologies operating with
continuous inductor current.
The diode clamp is
required if the Sync
amplitude is large enough
to cause the bottom side
of CT to go more than
300mV below ground
0.01uF
CT
RT
47
R
R
R
2R
1
2
4
5
8
+
-
+
EA
OSC
BIAS
Vref
External
Sync Input
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