参数资料
型号: TL3843BD
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO14
封装: GREEN, PLASTIC, MS-012AB, SOIC-14
文件页数: 22/27页
文件大小: 625K
代理商: TL3843BD
www.ti.com
Absolute Maximum Ratings
(1) (2)
Recommended Operating Conditions
HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
UNIT
Low impedance source
30
VCC
Supply voltage
V
Self
ICC < 30 mA
limiting
VI
Analog input voltage range
VFB and ISENSE
–0.3
6.3
V
ICC
Supply current
30
mA
IO
Output current
±1
A
IO(sink)
Error amplifier output sink current
10
mA
8 pin
97
D package
θJA
Package thermal impedance(3)(4)
14 pin
86
°C/W
P package
85
Output energy
Capacitive load
5
μJ
TJ
Virtual junction temperature
150
°C
Tstg
Storage temperature range
–65
150
°C
Tlead
Lead temperature
Soldering, 10 s
300
°C
(1)
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2)
All voltages are with respect to the device GND terminal.
(3)
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 impact reliability.
(4)
The package thermal impedance is calculated in accordance with JESD 51-7.
MIN
NOM
MAX
UNIT
VCC
30
VCC
Supply voltage
V
VC(1)
30
RT/CT
0
5.5
VI
Input voltage
V
VFB and ISENSE
0
5.5
OUTPUT
0
30
VO
Output voltage
V
POWER GROUND(1)
–0.1
1
ICC
Supply current, externally limited
25
mA
IO
Average output current
200
mA
IO(ref)
Reference output current
–20
mA
fosc
Oscillator frequency
100
500
kHz
TL284xB
–40
85
TJ
Operating free-air temperature
°C
TL384xB
0
70
(1)
The recommended voltages for VC and POWER GROUND apply only to the 14-pin D package.
4
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