Datasheet

SYNC
C
T
V
REF
CLOCK
CLOCK
0.2 V
2.5 V
REF
RT
I
RT
CT
R
T
8 × I
RT
+
+
S Q
R
OSC
Q
Q
QD
Q S
R
0.5 V
11 V/9 V
QD
D
2 V
2.5 V
REF
4 V
0.5 V
REF
0.5 V/0.6 V
19
8
7
6
2
20
1
12
5
4
11
16
13
10
14
17
9
18
15
+
3
SS
CS
EAN
EAP
EAOUT
RAMP
SYNC
CT
RT
GND
REF
ADS
OUTD
PGND
DELCD
OUTC
OUTB
DELAB
OUTA
VDD
DELAY C
DELAY D
DELAY A
DELAY B
Q
I
RT
10(I )
RT
Disable
Comparator
Overcurrent
Comparator
Error
Amp
PWM
Comparator
S
R
S
R
I
RT
8(I )
RT
No Load
Comparator
S
R
0.8 V
Adaptive Delay
Set Amplifier
UVLO Comparator
Reference OK
Comparator
+
+
+
+
+
+
+
+
+
HI = ON
HI = ON
Q
Q
Q
Current Sense
Comparator
Q
UCC2895-Q1
SLUS783C –MAY 2008–REVISED AUGUST 2012 www.ti.com
FUNCTIONAL BLOCK DIAGRAM
Figure 1. Oscillator Block Diagram
8 Submit Documentation Feedback Copyright © 2008–2012, Texas Instruments Incorporated
Product Folder Link(s): UCC2895-Q1