TL284X_07 Datasheet, PDF (3/18 Pages) Texas Instruments – CURRENT-MODE PWM CONTROLLERS

TL284x, TL384x
CURRENT-MODE PWM CONTROLLERS
functional block diagram
VCC ¹²
SLVS038F – JANUARY 1989 – REVISED FEBRUARY 2003
34 V NOM
9
GND
–+
UVLO
5-V REF
EN
14
REF
RT/CT ⁷
OSC
Vref
Good
Logic
T
3
VFB
COMP ¹
ISENSE ⁵
Error
Amplifier
+
–
2R
R
S
R
1V
Current-
Sense
Comparator
† _{The toggle flip-flop is present only in TL2844, TL2845, TL3844, and TL3845.}
Pin numbers shown are for the D (14-pin) package.
Internal
Bias
†
PWM
Latch
11 _VC
10 _OUTPUT
8 POWER
GROUND
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