FP5451A Feeling Technology, FP5451A Datasheet - Page 9

• Manufacturer Part Number: FP5451A
• Description: DUAL CHANNEL PWM CONTROL IC
• Manufacturer: Feeling Technology

TYPICAL CHATACTERISTICS
10 0 K
1 0 K
0 .76
2 .6
2 .4
2 .2
1 .8
1 .6
1 .4
1 .2
1 M
1 K
2
1
1 0
-10
-20
-30
1 K
3 0
2 0
1 0
0
TRIANG LE WAVEF ORM S WING VOLTAG E
REFERENCE OUTP UT VOLTAGE VARIATION
-25
1
TRIANGLE OS CILLATOR F REQ UE NCY
Technology
Vc c = 3.6 V
I (r ef) = 1m A
4 K
TIMING CAP ACITANCE
10
F REE -AIR TEMP ERATURE
0
C T - Tim in g C a p aci ta n ce - p F
TIMING RES IS TANCE
R T - Tim in g R e s is ta n ce -
2
1 0 K
TA - F re e-Air Tem pe rat u re -
F igure 3
F igu re 5
F igure 1
25
VS
VS
10
40 K
VS
3
C T = 100 p F
C
C T = 1 00 00 p F
T
10 0 K
50
= 100 0 p F
Ω
R T = 5.1 K¢ F G [
Vcc = 5 V
T A = 25
10
4
Vcc = 5 V
T A = 2 5
o
C
40 0 K
7 5
o
C
o
C
1 M
10
10 0
5
Δ
1 0
10
10
10
-1
2
1
0
-10
-20
-30
10
3 0
2 0
1 0
-1
-2
-3
0
3
2
1
0
-25
REF ERENCE OUTP UT VOLTAGE VARIATION
-25
1
R T = 5 .1 KΩ
T A = 2 5
Vcc = 5 V
O S CILLATOR FREQ UENCY VARIATION
Vcc = 3 .6 V
TR IANG LE WAVEF ORM P ERIOD
C T = 3 30p F
R T = 1 0 K Ω
fos c = 2 00 kHz
Vcc = 40 V
I (ref) = 1m A
o
C
TIMING CAP ACITANCE
10
F RE E-AIR TEMP ER ATURE
FREE-AIR TEMP ERATURE
0
0
C T - Tim in g C a p aci ta n ce - p F
2
TA - Fre e-Air Te m p era tu re -
TA - Free -Air Tem p e rat u re -
F igure 4
2 5
25
Fig ure 6
FP5451A
Fig ur e 2
VS
10
VS
VS
3
5 0
50
Rev0.4 May. 11, 2005
10
www.DataSheet4U.com
4
o C
o
C
7 5
75
P9/FP5451A
10
10 0
10 0
5