AMC3843B ETC, AMC3843B Datasheet - Page 3

• Manufacturer Part Number: AMC3843B
• Description: (AMC3842B / AMC3843B) CURRENT MODE PWM CONTROLLER
• Manufacturer: ETC

AMC DOC. #: AMC3842B_C (LF)
March 2004
V
V
COMP
CURRENT
SENSE
R
Copyright © 2002, ADD Microtech Corp.
Note 2 :V
Note 3 :PWR GND and GND are internally connected for 8 pin packages.
Note 4 :U.V.L.O. is 16V for 3842B and 8.4V for 3843B.
Note 5 :Hysteresis is 6V for 3842B and 0.8V for 3843B.
REF
FB
T
/C
T
8 (14)
1 (1)
4 (7)
2 (3)
( ) are 14 Pin S.O.I.C. pin number
CC
and PWR V
3 (5)
Internal
Bias
C
are internally connected for 8 pin packages.
Error Amp
5V
V
Oscillator
REF
EN
V
Good Logic
REF
BLOCK DIAGRAM
U.V.L.O.
2R
R
3
1
V
C
Current
Sense
URRENT
36V
R
S
T
M
ODE
PWM
Latch
AMC3842B/43B
PWM C
ONTROLLER
www.addmtek.com
7 (12)
7 (11)
5 (9)
6 (10)
5 (8)
OUTPUT
GND
PWR
GND
PWR
V
V
C
CC