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參數資料
| 型號： | SG3526B |
| 廠商： | Microsemi Corporation |
| 英文描述： | REGULATING PULSE WIDTH MODULATOR |
| 中文描述： | 調控脈寬調制器 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 209K |
| 代理商： | SG3526B |
4/90 Rev 1.1 2/94
Copyright
1994
L
IN
F
IN
ITY
Microelectronics Inc.
11861 Western Avenue
∞
∞
Garden Grove, CA 92841
(714) 898-8121
∞
FAX: (714) 893-2570
1
SG1526B/SG2526B/SG3526B
DESCRIPTION
The SG1526B is a high-performance pulse width modulator for switching
power supplies which offers improved functional and electrical characteris-
tics over the industry-standard SG1526. A direct pin-for-pin replacement for
the earlier device with all its features, it incorporates the following enhance-
ments: a bandgap reference circuit for improved regulation and drift
characteristics, improved undervoltage lockout, lower temperature coeffi-
cients on oscillator frequency and current-sense threshold, tighter toler-
ance on softstart time, much faster SHUTDOWN response, improved
double-pulse supperession logic for higher speed operation, and an im-
proved output driver design with low shoot-through current, and faster rise
and fall times. This versatile device can be used to implement single-ended
or push-pull switching regulators of either polarity, both transformer-less
and transformer-coupled. The SG1526B is specified for operation over the
full military ambient temperature range of -55
°
C to 150
°
C. The SG2526B
is characterized for the industrial range of -25
°
C to 150
°
C, and the SG3526B
is designed for the commercial range of 0
°
C to 125
°
C.
REGULATING PULSE WIDTH MODULATOR
BLOCK DIAGRAM
+V
IN
METERING
F/F
TOGGLE
F/F
MEMORY
F/F
R
D
R
T
C
T
GROUND
Oscillator
Reference
Regulator
Undervoltage
Lockout
Soft
Start
RESET
C
SOFTSTART
COMPENSATION
+ ERROR
— ERROR
+ C.S.
— C.S.
SHUTDOWN
Q
Q
Q
Q
OUTPUT B
+V
C
OUTPUT A
+V
IN
FEATURES
8 to 35 volt operation
5V low drift 1% bandgap reference
1Hz to 500KHz oscillator range
Dual 100mA source/sink
Digital current limiting
Double pulse suppression
Programmable deadtime
Improved undervoltage lockout
Single pulse metering
Programmable soft-start
Wide current limit common mode range
TTL/CMOS compatible logic ports
Symmetry correction capability
Guaranteed 6 unit synchronization
Shoot thru currents less than 100mA
Improved shutdown delay
Improved rise and fall time
HIGH RELIABILITY FEATURES - SG1526B
Available to MIL-STD-883
MIL-M38510/12603BVA - JAN1526BJ
Radiation data available
LMI level "S" processing available
Amp
V
REF
To Internal
Circuitry
SYNC
S
R
D
S
T
Q
相關PDF資料 |
PDF描述 |
|---|---|
| SG3526BDW | REGULATING PULSE WIDTH MODULATOR |
| SG3526BJ | REGULATING PULSE WIDTH MODULATOR |
| SG3526BN | REGULATING PULSE WIDTH MODULATOR |
| SG2526B | REGULATING PULSE WIDTH MODULATOR |
| SG2526BDW | REGULATING PULSE WIDTH MODULATOR |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SG3526BDW | 功能描述:IC REG CTRLR BUCK PWM VM 18-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數:1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR) |
| SG3526BDW-TR | 制造商:Microsemi Corporation 功能描述:DC-DC CONVERTER |
| SG3526BJ | 制造商:Microsemi Corporation 功能描述:SG3526BJ - Bulk |
| SG3526BN | 功能描述:IC REG CTRLR BUCK PWM VM 18-DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數:1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR) |
| SG3526DW | 功能描述:IC REG CTRLR BUCK PWM VM 18-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 特色產品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標準包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數:1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤 包裝:Digi-Reel® 產品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR |
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