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參數(shù)資料
| 型號： | 5962-87681022A |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2.2 A SWITCHING CONTROLLER, 1150 kHz SWITCHING FREQ-MAX, CQCC20 |
| 封裝： | CERAMIC, LCC-20 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大小： | 477K |
| 代理商： | 5962-87681022A |
UC1823A,UC2823A,UC2823B,
UC3823A,UC3823B,UC1825A,
UC2825A,UC2825B,UC3825A,UC3825B
SLUS334D AUGUST 1995 REVISED NOVEMBER 2008
HIGHSPEED PWM CONTROLLER
FEATURES
D Improved Versions of the UC3823/UC3825
PWMs
D Compatible with Voltage-Mode or
Current-Mode Control Methods
D Practical Operation at Switching Frequencies
to 1 MHz
D 50-ns Propagation Delay to Output
D High-Current Dual Totem Pole Outputs
(2-A Peak)
D Trimmed Oscillator Discharge Current
D Low 100-A Startup Current
D Pulse-by-Pulse Current Limiting Comparator
D Latched Overcurrent Comparator With Full
Cycle Restart
DESCRIPTION
The UC3823A and UC3823B and the UC3825A and
UC3825B family of PWM controllers are improved
versions of the standard UC3823 and UC3825 family.
Performance enhancements have been made to several
of the circuit blocks. Error amplifier gain bandwidth product
is 12 MHz, while input offset voltage is 2 mV. Current limit
threshold is assured to a tolerance of 5%. Oscillator
discharge current is specified at 10 mA for accurate dead
time control. Frequency accuracy is improved to 6%.
Startup supply current, typically 100
A, is ideal for off-line
applications. The output drivers are redesigned to actively
sink current during UVLO at no expense to the startup
current specification. In addition each output is capable of
2-A peak currents during transitions.
BLOCK DIAGRAM
4
5
6
7
3
2
1
OSC
CLK/LEB
RT
CT
RAMP
EAOUT
NI
INV
8
9
15
SS
ILIM
VCC
1.25 V
10
GND
(60%)
1.0 V
E/A
1.2 V
0.2 V
OVER CURRENT
CURRENT
LIMIT
R
SD
5 V
SOFTSTART COMPLETE
R
SD
FAULT LATCH
RESTART
DELAY
T
13
11
14
VC
12
PWM
LATCH
9
mA
250
mA
R
S
*
RESTART
DELAY
LATCH
VREF
5.1 V
ON/OFF
UVLO
4 V
INTERNAL
BIAS
16
OUTA
OUTB
PGND
5.1 VREF
”B” 16V/10V
”A” 9.2V/8.4V
PWM COMPARATOR
UDG02091
VREF GOOD
* On the UC1823A version, toggles Q and Q are always low.
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.
www.ti.com
Copyright
2004 2008, 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.
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PDF描述 |
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| 5962-8768103XA | 2.2 A SWITCHING CONTROLLER, 1150 kHz SWITCHING FREQ-MAX, BCY28 |
| 5962-8768102EA | 2.2 A SWITCHING CONTROLLER, 1150 kHz SWITCHING FREQ-MAX, CDIP16 |
| 5962-89920022A | 0.4 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CQCC20 |
| 5962-8992002VA | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CDIP18 |
| 5962-8992101XX | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 6.9 V, MBCY2 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 5962-8768102EA | 制造商:Texas Instruments 功能描述:Current Mode PWM Controller 2A 16-Pin CDIP 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:CURRENT MODE PWM CNTRLR 2A 16CDIP - Rail/Tube |
| 5962-8768102XA | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 5962-8768104V2A | 功能描述:電流型 PWM 控制器 High Spd PWM Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| 5962-8768104VEA | 功能描述:電流型 PWM 控制器 High Spd PWM Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| 5962-8768105VEA | 制造商:Texas Instruments 功能描述:Current Mode PWM Controller 100mA 16-Pin CDIP 制造商:Texas Instruments 功能描述:UC1825AJ-SP, HIGH SPEED PWM - Rail/Tube |
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