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參數資料
| 型號： | TL594CN |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩壓器 |
| 英文描述： | PRECISION SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT |
| 中文描述： | 0.5 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 166K |
| 代理商： | TL594CN |
TL594
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS052C – APRIL 1988 – REVISED JULY 1999
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Complete PWM Power Control Circuitry
Uncommitted Outputs for 200-mA Sink or
Source Current
Output Control Selects Single-Ended or
Push-Pull Operation
Internal Circuitry Prohibits Double Pulse at
Either Output
Variable Dead Time Provides Control Over
Total Range
Internal Regulator Provides a Stable 5-V
Reference Supply Trimmed to 1%
Circuit Architecture Allows Easy
Synchronization
Undervoltage Lockout for Low V
CC
Conditions
description
The TL594 incorporates all the functions required in the construction of a pulse-width-modulation control circuit
on a single chip. Designed primarily for power-supply control, these devices offer the systems engineer the
flexibility to tailor the power-supply control circuitry to a specific application.
The TL594 contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC)
comparator, a pulse-steering control flip-flop, a 5-V regulator with a precision of 1%, an undervoltage lockout
control circuit, and output control circuitry.
The error amplifiers exhibit a common-mode voltage range from –0.3 V to V
CC
–2 V. The DTC comparator has
a fixed offset that provides approximately 5% dead time. The on-chip oscillator can be bypassed by terminating
RT to the reference output and providing a sawtooth input to CT, or it can be used to drive the common circuitry
in synchronous multiple-rail power supplies.
The uncommitted output transistors provide either common-emitter or emitter-follower output capability. Each
device provides for push-pull or single-ended output operation, with selection by means of the output-control
function. The architecture of these devices prohibits the possibility of either output being pulsed twice during
push-pull operation. The undervoltage lockout control circuit locks the outputs off until the internal circuitry is
operational.
The TL594C is characterized for operation from 0
°
C to 70
°
C. The TL594I is characterized for operation from
–40
°
C to 85
°
C.
FUNCTION TABLE
INPUT
OUTPUT
CTRL
OUTPUT FUNCTION
VI = –0
VI = Vref
Single-ended or parallel output
Normal push-pull operation
Copyright
1999, 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
5
6
7
8
16
15
14
13
12
11
10
9
1IN+
1IN–
FEEDBACK
DTC
CT
RT
GND
C1
2IN+
2IN–
REF
OUTPUT CTRL
VCC
C2
E2
E1
D OR N PACKAGE
(TOP VIEW)
相關PDF資料 |
PDF描述 |
|---|---|
| TL594IN | PRECISION SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT |
| TL594 | PRECISION SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT |
| TL594CD | PRECISION SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT |
| TL594CN | PRECISION SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT |
| TL598D | PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TL594CN | 制造商:Texas Instruments 功能描述:PWM Controller IC Supply Voltage Max.:40 |
| TL594CNE4 | 功能描述:電壓模式 PWM 控制器 Control Circuit RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| TL594CNG | 功能描述:電壓模式 PWM 控制器 40kHz 200mA PWM w/48% Duty Cycle Max RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| TL594CNSR | 功能描述:電壓模式 PWM 控制器 Control Circuit RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| TL594CNSRE4 | 功能描述:電壓模式 PWM 控制器 Control Circuit RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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