TL497A Datasheet, PDF (4/9 Pages) Texas Instruments – SWITCHING VOLTAGE REGULATORS

TL497A
SWITCHING VOLTAGE REGULATORS
SLVS009D – JUNE 1976 – REVISED JULY 1999
electrical characteristics over recommended operating conditions, V_CC = 6 V (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
TA†
High-level input current, INHIBIT
Low-level input current, INHIBIT
Comparator reference voltage
Comparator input bias current
Switch on-state voltage
Switch off-state current
VI(I) = 5 V
VI(I) = 0 V
VI = 4.5 V to 6 V
VI = 6 V
VI = 4.5 V
IO = 100 mA
IO = 500 mA
VI = 4.5 V, VO = 30 V
Full range
Full range
Full range
Full range
25°C
Full range
25°C
Full range
Sense voltage, CUR LIM SENS
Diode forward voltage
Diode reverse voltage
On-state supply current
VI = 6 V
IO = 10 mA
IO = 100 mA
IO = 500 mA
IO = 500 µA
IO = 200 µA
25°C
Full range
Full range
Full range
Full range
Full range
25°C
Full range
Off-state supply current
25°C
Full range
† _{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 TA = 25°C.}
TL497AC
MIN TYP‡ MAX
0.8 1.5
5
10
1.08 1.2 1.32
40 100
0.13 0.2
0.85
10
50
200
0.45
1
0.75 0.85
0.9
1
1.33 1.55
30
11
14
15
6
9
10
TL497AI
MIN TYP‡ MAX
0.8 1.5
5
20
1.14 1.2 1.26
40 100
0.13 0.2
1
10
50
500
0.45
1
0.75 0.95
0.9 1.1
1.33 1.75
30
UNIT
mA
µA
V
µA
V
µA
V
V
V
11
14
mA
16
6
9
mA
11
electrical characteristics over recommended operating conditions, V_CC = 6 V, T_A = 25°C (unless
otherwise noted)
PARAMETER
High-level input current, INHIBIT
Low-level input current, INHIBIT
Comparator reference voltage
Comparator input bias current
Switch on-state voltage
Switch off-state current
Diode forward voltage
On-state supply current
Off-state supply current
TEST CONDITIONS
VI(I) = 5 V
VI(I) = 0 V
VI = 4.5 V to 6 V
VI = 6 V
VI = 4.5 V,
IO = 100 mA
VI = 4.5 V,
VO = 30 V
IO = 10 mA
IO = 100 mA
IO = 500 mA
TL497AY
MIN TYP MAX
0.8
5
1.2
40
0.13
10
0.75
0.9
1.33
11
6
UNIT
mA
µA
V
µA
V
µA
V
mA
mA
4
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