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TL499ACP Datasheet(PDF) 3 Page - Texas Instruments

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Part # TL499ACP
Description  WIDE-RANGE POWER-SUPPLY CONTROLLERS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TL499ACP Datasheet(HTML) 3 Page - Texas Instruments

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TL499A
WIDE-RANGE POWER-SUPPLY CONTROLLERS
SLVS029G – JANUARY 1984 – REVISED SEPTEMBER 2001
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
MIN
NOM
MAX
UNIT
Output voltage, VO
2.9
30
V
Input voltage, VI1 (SERIES IN1)
4.5
32
V
Input voltage, VI2 (SW REG IN2)
1.1
10
V
Output-to-input differential voltage, switching regulator, VO – VI2 (see Note 4)
1.2
28.9
V
Continuous output current, IO
100
mA
Power switch current (at SW IN)
500
mA
Current-limiting resistor, RCL
150
1000
Filter capacitor
100
470
µF
Pass capacitor
0.1
µF
Inductor, L (dcr
≤ 0.1 Ω)
50
150
µH
Operating free-air temperature, TA
–20
85
°C
NOTE 4: When operating temperature range is TA ≤ 70°C, minimum VO – VI2 is ≥ 1.2 V. When operating temperature range is TA ≤ 85°C, minimum
VO – VI2 is ≥ 1.9 V.
electrical characteristics over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TL499AC
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Voltage deviation (see Note 5)
20
30
mV/V
VO VI2
Switching regulator
TA = –20°C to 70°C
1.2
VO – VI2
Switching regulator
TA = –20°C to 85°C
1.9
V
Dropout voltage
Series regulator
VI1 = 15 V,
IO = 50 mA
1.8
Reference voltage (internal)
VI1 = 5 V,
VO = 3 V,
IO = 1 mA
1.2
1.26
1.32
V
Reference-voltage change with temperature
5
10
mV/V
Output regulation (of reference voltage)
IO = 1 mA to 50 mA
10
30
mV/V
VI2 = 1.1 V, VO = 12 V,
RCL = 150 Ω,
TA = 25°C
10
Output current
Switching regulator
VI2 = 1.5 V, VO = 15 V,
RCL = 150 Ω,
TA = 25°C
15
mA
(see Figure 1)
VI2 = 6 V,
VO = 30 V,
RCL = 150 Ω,
TA = 25°C
65
mA
Series regulator
100
Standby current
Switching regulator
VI2 = 3 V,
VO = 9 V,
TA = 25°C
15
80
µA
Standby current
Series regulator
VI1 = 15 V,
VO = 9 V,
RE2 = 4.7 kΩ
0.8
1.2
mA
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 * VO switching regulation


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