TL499A Datasheet, PDF (4/8 Pages) Texas Instruments – WIDE-RANGE POWER-SUPPLY CONTROLLERS

TL499A
WIDE-RANGE POWER-SUPPLY CONTROLLERS
SLVS029F – JANUARY 1984 – REVISED MAY 2000
electrical characteristics over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TL499AC
MIN TYP MAX
Voltage deviation (see Note 5)
20
30
Switching regulator ^{TA = –20°C to 70°C}
1.2
Dropout voltage
1.9
Series regulator
Reference voltage (internal)
Reference-voltage change with temperature
VI1 = 15 V,
VI2 = 5 V,
IO = 50 mA
VO = 3 V,
IO = 1 mA
1.8
1.2 1.26 1.32
5
10
Output regulation (of reference voltage)
Output current
(see Figure 1)
Switching regulator
Series regulator
IO = 1 mA to 50 mA
VI2 = 1.1 V, VO = 12 V,
VI2 = 1.5 V, VO = 15 V,
VI2 = 6 V, VO = 30 V,
RCL = 150 Ω,
RCL = 150 Ω,
RCL = 150 Ω,
TA = 25°C
TA = 25°C
TA = 25°C
10
30
10
15
65
100
Standby current
Switching regulator VI2 = 3 V, VO = 9 V,
Series regulator
VI1 = 15 V, VO = 9 V,
TA = 25°C
RE2 = 4.7 kΩ
15
80
0.8 1.2
+ ǒ Ǔ * ǒ Ǔ NOTE 5: Voltage deviation is the output voltage difference that occurs in a change from series regulation to switching regulation:
Voltage deviation V_O series regulation V_O switching regulation
UNIT
mV/V
V
V
mV/V
mV/V
mA
µA
mA
electrical characteristics over recommended operating conditions, T_A = 25°C (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
TL499AY
MIN TYP MAX
Voltage deviation (see Note 5)
20
30
Dropout voltage
Switching regulator
Series regulator
Reference voltage (internal)
Reference-voltage change with temperature
Output regulation (of reference voltage)
Output current
(see Figure 1)
Switching regulator
Series regulator
TA = –20°C to 70°C
TA = –20°C to 85°C
VI1 = 15 V,
IO = 50 mA
VI2 = 5 V,
VO = 3 V,
TA = –20°C to 85°C
IO = 1 mA to 50 mA
VI2 = 1.1 V,
VO = 12 V,
VI2 = 1.5 V,
VO = 15 V,
VI2 = 6 V,
VO = 30 V,
IO = 1 mA
RCL = 150 Ω
RCL = 150 Ω
RCL = 150 Ω
1.2
1.9
1.8
1.2 1.26 1.32
5
10
10
30
10
15
65
100
Standby current
Switching regulator VI2 = 3 V,
Series regulator
VI1 = 15 V,
VO = 9 V
VO = 9 V,
RE2 = 4.7 kΩ
15
80
0.8 1.2
+ ǒ Ǔ * ǒ Ǔ NOTE 5: Voltage deviation is the output voltage difference that occurs in a change from series regulation to switching regulation:
Voltage deviation V_O series regulation V_O switching regulation
UNIT
mV/V
V
V
mV/V
mV/V
mA
µA
mA
4
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