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參數(shù)資料
| 型號(hào)： | TL5002ID |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | GREEN, PLASTIC, SOIC-8 |
| 文件頁(yè)數(shù)： | 1/18頁(yè) |
| 文件大?。?/td> | 481K |
| 代理商： | TL5002ID |
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TL5002
PULSEWIDTHMODULATION CONTROL CIRCUIT
SLVS304A SEPTEMBER 2000 REVISED AUGUST 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Complete PWM Power Control
D 3.6-V to 40-V Operation
D Internal Undervoltage-Lockout Circuit
D Oscillator Frequency...20 kHz to 500 kHz
D Variable Dead Time Provides Control Over
Total Range
D Ideal Controller for DDR Memory
Application
D Uncommitted Error Amplifier Inputs
description
The TL5002 incorporates on a single monolithic chip all the functions required for a pulse-width-modulation
(PWM) control circuit. Designed primarily for power-supply control, the TL5002 contains an error amplifier, a
regulator, an oscillator, a PWM comparator with a dead-time-control input, undervoltage lockout (UVLO), and
an open-collector output transistor.
The error-amplifier input common-mode voltage ranges from 0.9 V to 1.5 V. Dead-time control (DTC) can be
set to provide 0% to 100% dead time by connecting an external resistor between DTC and GND. The oscillator
frequency is set by terminating RT with an external resistor to GND. During low VCC conditions, the UVLO circuit
turns the output off until VCC recovers to its normal operating range.
The TL5002 is characterized for operation from 40
°C to 85°C.
AVAILABLE OPTIONS
TA
SMALL OUTLINE
(D)
20
°C to 85°C
TL5002CD
40
°C to 85°C
TL5002ID
The D package is available taped and reeled. Add the suffix R
to the device type (e.g., TL5002CDR).
functional block diagram
GND
8
OUT
COMP
INV
3
4
+
DTC
RT
6
7
PWM/DTC
Comparator
OSC
Amplifier
Error
UVLO
VCC
2
1
Reference
Voltage
IDT
2.5 V
5
NI
Copyright
2002, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
1
2
3
4
8
7
6
5
OUT
VCC
COMP
INV
GND
RT
DTC
NI
D PACKAGE
(TOP VIEW)
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| TL5002IDG4 | 功能描述:DC/DC 開(kāi)關(guān)控制器 Voltage Tracking Termination Regulatr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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| TL5002IDRG4 | 功能描述:DC/DC 開(kāi)關(guān)控制器 Voltage Tracking Termination Regulatr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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