- 您现在的位置：买卖IC网 > PDF目录19716 > SGP400TZ (Fairchild Semiconductor)IC CTRLR PWM GREEN CM OTP SSOT6 PDF资料下载
参数资料
| 型号： | SGP400TZ |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PWM GREEN CM OTP SSOT6 |
| 标准包装： | 3,000 |
| 输出隔离： | 隔离 |
| 频率范围： | 62kHz ~ 68kHz |
| 输入电压： | 8 V ~ 30 V |
| 输出电压： | 18V |
| 功率（瓦特）： | 247mW |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 供应商设备封装： | 6-SSOT |
| 包装： | 带卷 (TR) |
Product Specification
Low-Power Green-Mode PWM Flyback Power Controller without Secondary Feedback
SGP400
FEATURES
Linearly decreasing PWM frequency
Green-mode under light-load and zero-load
conditions
Constant voltage (CV) and constant current (CC)
No secondary feedback
Low start-up current (8μA)
Low operating current (3.6mA)
DESCRIPTION
This highly integrated PWM controller provides several
features to enhance the performance of low-power
flyback converters. To minimize standby power
consumption, the proprietary green-mode function
provides off-time modulation to linearly decrease the
switching frequency under light-load and zero-load
conditions. This green-mode function enables the power
Leading-edge blanking
supply to meet international
power conservation
Constant power limit
Universal AC input range
Synchronized slope compensation
140 ° C OTP sensor with hysteresis
V DD over-voltage clamping
Cycle-by-cycle current limiting
Under-voltage lockout (UVLO)
Fixed PWM frequency with hopping
Gate output maximum voltage clamped at 17V
Small SOT-26 package
APPLICATIONS
Low-power flyback power converters, such as:
Battery chargers for cellular phones, cordless phones,
PDAs, digital cameras, and power tools
Power adapters for ink jet printers, video game
consoles, and portable audio players
Open-frame SMPS for TV/DVD standby and other
auxiliary supplies, home appliances, consumer
electronics, and PC 5V standby-power
Replacements for linear transformers and
RCC SMPS
requirements. The supply voltage, V DD , is also used for
feedback compensation, to regulate the output voltage
without requiring a conventional TL431 and a
photo-coupler. The typical start-up current is only 8μA,
while the typical operating current can be as low as
3.6mA. A large start-up resistance could be used to
achieve even higher power conversion efficiency.
SGP400 integrates a frequency hopping function, which
helps reduce EMI emission of a power supply with
minimum line filters. Built-in synchronized slope
compensation maintains the stability of peak
current-mode control. Proprietary internal compensation
ensures constant output power limiting over a universal
range of AC input voltages, from 90V AC to 264V AC .
Pulse-by-pulse current limiting ensures a constant output
current, even if a short-circuit occurs. Also, the internal
protection circuit disables PWM output if V DD exceeds
22.7V. The gate output is clamped at 16.7V to protect the
power MOS from over-voltage damage. The built-in
over temperature protection (OTP) function shuts down
the controller at 140 ° C with a 30 ° C hysteresis. The
SGP400, designed to provide a low-cost total solution for
flyback converters, is available in a small footprint, 6-pin,
SOT-26 package.
TYPICAL APPLICATION
V IN
R IN
D O
D 1
C O
V O
VDD
G ATE
Q1
W AUX
C IN
SE N SE
GN D
R S
? System General Corp.
Version 1.0.1 (IAO33.0084.B0)
-1-
www.sg.com.tw ? www.fairchildsemi.com
September 24, 2007
相关PDF资料 |
PDF描述 |
|---|---|
| M4A3-256/128-12SAI | IC CPLD ISP 4A 256MC 256SBGA |
| SG6858TZ | IC CTRLR PWM PROG GREEN CM 6SSOT |
| LTC4245IG#TRPBF | IC CNTRLR HOT SWAP 36-SSOP |
| 190-009-163R001 | CONN DB9 MALE R/A SOLDER SMD |
| ESA43DRMN | CONN EDGECARD 86POS .125 SQ WW |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SGP40N60 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Ultra-Fast IGBT |
| SGP40N60UF | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Ultra-Fast IGBT |
| SGP40N60UFTU | 功能描述:IGBT 晶体管 Dis High Perf IGBT RoHS:否 制造商:Fairchild Semiconductor 配置: 集电极—发射极最大电压 VCEO:650 V 集电极—射极饱和电压:2.3 V 栅极/发射极最大电压:20 V 在25 C的连续集电极电流:150 A 栅极—射极漏泄电流:400 nA 功率耗散:187 W 最大工作温度: 封装 / 箱体:TO-247 封装:Tube |
| SGP4-300Q83 | 制造商:Banner Engineering 功能描述:SGP4-300Q83 PAIR 4 BM GRD QD 300mm EZ SCREEN |
| SGP4-300Q88E | 制造商:Banner Engineering 功能描述:SGP4-300Q88E PR 4 BM GRD QD 300mm EZ SCREEN |
发布紧急采购，3分钟左右您将得到回复。