AMC3842B Datasheet, PDF (3/11 Pages) List of Unclassifed Manufacturers – CURRENT MODE PWM CONTROLLER

V_REF
8 (14)
Internal
Bias
5V _EN
V_REF
AMC3842B/43B/44B/45B
BLOCK DIAGRAM
7 (12) _VCC
U.V.L.O.
36V
5 (9) _GND
V_FB ^{2 (3)}
COMP ^{1 (1)}
CURRENT
SENSE
R_T/C_T ^{4 (7)}
3 (5)
V_REF
Good Logic
Error Amp
2R
R
Oscillator
Current
Sense
1V
R
PWM
Latch
S
T
7 (11) PWR
V_C
OUTPUT
6 (10)
PWR
5 (8) ^GND
( ) are 14 Pin S.O.I.C. pin number
Note 2: V_CC and PWR V_C are internally connected for 8 pin packages.
Note 3: PWR GND and GND are internally connected for 8 pin packages.
Note 4: U.V.L.O. is 16V for 3842B/44B and 8.4V for 3843B/45B.
Note 5: Hysteresis is 6V for 3842B/44B and 0.8V for 3843B/45B.
Note 6: Toggle flip flop used only in 3844B/45B
Copyright © 2006 ADDtek Corp.
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DD019_F -- OCTOBER 2006