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TL499ACP Datasheet(PDF) 4 Page - Texas Instruments

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Part # TL499ACP
Description  Wide-Range Power-Supply Controllers
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TL499ACP Datasheet(HTML) 4 Page - Texas Instruments

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TL499A
SLVS029H – JANUARY 1984 – REVISED NOVEMBER 2015
www.ti.com
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
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
(1))
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
Ω
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
(1)
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.
6.4 Thermal Information
TL499A
THERMAL METRIC(1)
P (PDIP)
PS (SO)
UNIT
8 PINS
8 PINS
RθJA
Junction-to-ambient thermal resistance(2)(3)
49.7
110.7
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
38.8
69.0
°C/W
RθJB
Junction-to-board thermal resistance
26.9
55.7
°C/W
ψJT
Junction-to-top characterization parameter
16.1
20.1
°C/W
ψJB
Junction-to-board characterization parameter
26.7
54.9
°C/W
(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report, SPRA953.
(2)
Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) – TA) / θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
(3)
The package thermal impedance is calculated in accordance with JESD 51-7.
6.5 Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Voltage deviation (see (1))
20
30
mV/V
TA = –20°C to 70°C
1.2
VO – VI2
Switching regulator minimum boost
V
TA = –20°C to 85°C
1.9
Dropout voltage
Series regulator
VI1 = 15 V, IO = 50 mA
1.8
V
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,
10
RCL = 150 Ω, TA = 25°C
VI2 = 1.5 V, VO = 15 V,
Switching regulator
15
Output current
RCL = 150 Ω, TA = 25°C
mA
(see Figure 3)
VI2 = 6 V, VO = 30 V,
65
RCL = 150 Ω, TA = 25°C
Series regulator
100
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
(1)
Voltage deviation is the output voltage difference that occurs in a change from series regulation to switching regulation: Voltage
deviation = VO (series regulation) – VO (switching regulation)
4
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