TDA8385 Philips Semiconductors, TDA8385 Datasheet - Page 15

• Manufacturer Part Number: TDA8385
• Description: Control circuit for a Self-Oscillating Power Supply SOPS
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Notes
1. V
2. V
March 1994
Delay setting
I
I
V
V
t
t/c
Stand-by
V
V
t
t
I
Over voltage protection
V
t
t
V
I
I
Regulation indicator output
V
I
SYMBOL
6
6
dLH
dLH
dHL
10
dLH
dHL
7
8
1
/I
6
6(sat)
10H
10(hys)
8
7
/I
1
Control circuit for a Self-Oscillating
Power Supply (SOPS)
3
3
os
5
pulse = 1 V; V
= V
offset.
charge current ratio
charge current initialization phase V
clamping level
saturation voltage
delay from pin 6 to pin 2;
V
LOW-to-HIGH
delay setting (t = C
threshold level HIGH
hysteresis
delay to output pin 10 to pin 2
LOW-to-HIGH
delay to output pin 10 to pin 2
HIGH-to-LOW
input current
threshold level
delay to output pin 8 to pin 2
LOW-to-HIGH
delay to output pin 8 to pin 2
HIGH-to-LOW
reset level
slow discharge current ratio
input current
saturation voltage
leakage current
6
crossing the 2.5 V level;
4
PARAMETER
= 0.5 V; V
6
9
= V
V/I)
7
= 3 V; V
11
V
V
C
V
V
excluding capacitive
tolerances
V
I
V
V
V
I
V
3
1
6
6
15
5
15
6
10
7
8
1
6
= 0.5 V; V
= 250 A
= 1 mA
= 1 V
= 1 V; V
= 0 V; I
= 2.5 V;
= 1 V
= 3 V
= V
= 470 pF;
CONDITIONS
= 140 mV
see Fig.15;
= 2.3 V
16
16
2
16
13
= 2 mA;
= 5 V
= 0 V; I
2
= 2 mA.
1.1
2
2.8
2.4
450
2.4
90
0.12
MIN.
1.2
50
10
2.5
500
2.5
0.23
TYP.
Preliminary specification
1.3
3.2
100
1.2
2.6
550
1
1
5
2.6
1
1
140
0.31
1
300
1
MAX.
TDA8385
mA
V
mV
ns/pF
V
mV
V
mV
mV
UNIT
s
s
s
A
s
s
A
A