TL497A
SWITCHING VOLTAGE REGULATORS
SLVS009D – JUNE 1976 – REVISED JULY 1999
electrical characteristics over recommended operating conditions, V
noted)
= 6 V (unless otherwise
CC
TL497AC
TL497AI
UNIT
†
PARAMETER
TEST CONDITIONS
T
A
‡
‡
MIN TYP
MAX
1.5
10
MIN TYP
MAX
1.5
20
High-level input current, INHIBIT
Low-level input current, INHIBIT
Comparator reference voltage
Comparator input bias current
V
V
= 5 V
= 0 V
Full range
Full range
Full range
Full range
25°C
0.8
5
0.8
5
mA
µA
V
I(I)
I(I)
V = 4.5 V to 6 V
1.08
1.2
40
1.32
100
0.2
0.85
50
1.14
1.2
40
1.26
100
0.2
1
I
V = 6 V
µA
I
I
I
= 100 mA
= 500 mA
0.13
0.13
O
Switch on-state voltage
V = 4.5 V
V
I
Full range
25°C
O
10
10
50
Switch off-state current
V = 4.5 V,
V
O
= 30 V
µA
I
Full range
25°C
200
1
500
1
Sense voltage, CUR LIM SENS
V = 6 V
0.45
0.45
30
V
I
I
O
I
O
I
O
I
O
I
O
= 10 mA
= 100 mA
= 500 mA
= 500 µA
= 200 µA
Full range
Full range
Full range
Full range
Full range
25°C
0.75
0.9
0.85
1
0.75
0.9
0.95
1.1
1.75
Diode forward voltage
V
1.33
1.55
1.33
Diode reverse voltage
On-state supply current
Off-state supply current
V
30
11
6
14
15
9
11
6
14
16
9
mA
mA
Full range
25°C
Full range
10
11
†
‡
Full range is 0°C to 70°C for the TL497AC and –40°C to 85°C for the TL497AI.
All typical values are at T = 25°C.
A
electrical characteristics over recommended operating conditions, V
otherwise noted)
= 6 V, T = 25°C (unless
CC
A
TL497AY
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
0.8
5
MAX
High-level input current, INHIBIT
V
V
= 5 V
= 0 V
mA
µA
V
I(I)
Low-level input current, INHIBIT
Comparator reference voltage
Comparator input bias current
Switch on-state voltage
I(I)
V = 4.5 V to 6 V
1.2
40
I
V = 6 V
µA
V
I
V = 4.5 V,
I
O
= 100 mA
0.13
10
I
Switch off-state current
V = 4.5 V,
V
O
= 30 V
µA
I
I
O
I
O
I
O
= 10 mA
= 100 mA
= 500 mA
0.75
0.9
1.33
11
Diode forward voltage
V
On-state supply current
Off-state supply current
mA
mA
6
4
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TI [ TEXAS INSTRUMENTS ]
