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參數(shù)資料
| 型號(hào)： | TL3842Y |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | CURRENT-MODE PWM CONTROLLERS |
| 中文描述： | 電流模式PWM控制器 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 171K |
| 代理商： | TL3842Y |
TL284x, TL384x
CURRENT-MODE PWMCONTROLLERS
SLVS038E – JANUARY 1989 – REVISED DECEMBER 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage (see Note 1) (I
CC
< 30 mA)
Analog input voltage range, V
I
(VFB and ISENSE)
Output voltage, V
O
(OUTPUT)
Input voltage, V
I
, (VC, D package only)
Supply current, I
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current, I
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Error amplifier output sink current
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θ
JA
(see Notes 2 and 3): D package
Self limiting
–0.3 V to 6.3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35 V
35 V
30 mA
±
1 A
10 mA
86
°
C/W
97
°
C/W
85
°
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
D-8 package
. . . . . . . . . . . . . . . . . . . . . . . . . .
P package
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature, 1,6 mm (1/16 inch) from case for 10 seconds
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
NOTES:
1. All voltages are with respect to the device GND terminal.
2. Maximum power dissipation is a function of TJ(max),
θ
JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) – TA)/
θ
JA. Operating at the absolute maximum TJ of 150
°
C can impact reliability.
3. The package thermal impedance is calculated in accordance with JESD 51.
Virtual junction temperature range, T
J
Output energy (capacitive load)
0
°
C to 150
°
C
5
μ
J
260
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–65
°
C to 150
°
C
recommended operating conditions
MIN
NOM
MAX
UNIT
Supply voltage, VCC and VC
Input voltage, VI, RT/CT
Input voltage, VI, VFB and ISENSE
Output voltage, VO, OUTPUT
Output voltage, VO, POWER GROUND
Supply current, externally limited, ICC
Average output current, IO
Reference output current, IO(ref)
Oscillator frequency, fosc
Operating virtual junction temperature, TJ
30
V
0
5.5
V
0
5.5
V
0
30
V
–0.1
1
V
25
mA
200
mA
–20
mA
100
500
kHz
0
125
°
C
Operating free air temperature T
Operating free-air temperature, TA
TL284x
–40
85
°
C
TL384x
0
70
These recommended voltages for VC and POWER GROUND apply only to the D package.
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