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參數(shù)資料
| 型號： | TL497 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | SWITCHING VOLTAGE REGULATORS |
| 中文描述： | 開關(guān)穩(wěn)壓器 |
| 文件頁數(shù)： | 3/9頁 |
| 文件大?。?/td> | 137K |
| 代理商： | TL497 |
TL497A
SWITCHING VOLTAGE REGULATORS
SLVS009D – JUNE 1976 – REVISED JULY 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
CC
(see Note 1)
Output voltage, V
O
Input voltage, V
I
(COMP INPUT)
Input voltage, V
I
(INHIBIT)
Diode reverse voltage
Power switch current
Diode forward current
Package thermal impedance,
θ
JA
(see Notes 2 and 3): D package
15 V
35 V
5 V
5 V
35 V
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750 mA
750 mA
86
°
C/W
101
°
C/W
113
°
C/W
260
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package
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N package
Lead temperature 1,6 mm (1/16 inch) from case for 60 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 voltage values except diode voltages are with respect to network ground 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, except for through-hole packages, which use a trace
length of zero.
–65
°
C to 150
°
C
recommended operating conditions
MIN
4.5
2.5
MAX
UNIT
V
V
V
Supply voltage, VCC
High-level input voltage, VIH
Low-level input voltage, VIL
12
INHIBIT pin
INHIBIT pin
Step-up configuration (see Figure 1)
Step-down configuration (see Figure 2)
Inverting regulator (see Figure 3)
0.8
30
VI + 2
Vref
–Vref
Output voltage
VI – 1
–25
500
500
V
Power switch current
Diode forward current
mA
mA
Operating free-air temperature range TA
O erating free-air tem erature range, TA
TL497AC
TL497AI
0
70
85
°
C
–40
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相關(guān)代理商/技術(shù)參數(shù) |
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| TL497A_06 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:500-mA PEAK STEP-UP, STEP-DOWN, INVERTING SWITCHING VOLTAGE REGULATOR |
| TL497AC | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SWITCHING VOLTAGE REGULATORS |
| TL497ACD | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.2V Switching V RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TL497ACD | 制造商:Texas Instruments 功能描述:IC SWITCHING REG 500MA SOIC14 制造商:Texas Instruments 功能描述:IC, SWITCHING REG, 500MA, SOIC14 制造商:Texas Instruments 功能描述:IC, SWITCHING REG, 500MA, SOIC14; Primary Input Voltage:12V; No. of Outputs:1; Output Voltage:30V; Output Current:500mA; Voltage Regulator Case Style:SOIC; No. of Pins:14; Operating Temperature Min:0C; Operating Temperature ;RoHS Compliant: Yes |
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