參數(shù)資料
型號(hào)： ISL6551
廠商： Intersil Corporation
英文描述： ZVS Full Bridge PWM Controller
中文描述： ZVS全橋PWM控制器
文件頁(yè)數(shù)： 15/26頁(yè)
文件大?。?/td> 619K
代理商： ISL6551
15
FN9066.4
July 8, 2005
Power Good (DCOK)
- DCOK pin is an open drain output capable of sinking
5mA. It is low when the output voltage is within the
UVOV window. The static regulation limit is
±
3%, while
the
±
5% is the dynamic regulation limit. It indicates
power good when the EAI is within -3% to +5% on the
rising edge and within +3% to -5% on the falling edge, as
shown in Figure 11.
- The DCOK comparator might not be triggered even
though the output voltage exceeds
±
5% limits at load
transients. This is because the feedback network of the
error amplifier filters out part of the transients and the EAI
only sees the remaining portion that is still within the limits,
as illustrated in Figure 12. The lower the “zero (1/RC)” of
the error amplifier, the larger the portion of the transient is
filtered out.
Thermal Pad (in QFN only)
- In the QFN package, the pad underneath the center of
the IC is a “floating” thermal substrate. The PCB
“thermal land” design for this exposed die pad should
include thermal vias that drop down and connect to
one or more buried copper plane(s). This combination
of vias for vertical heat escape and buried planes for
heat spreading allows the QFN to achieve its full
thermal potential. This pad should be connected to a
low noise copper plane such as Vss.
- Refer to TB389 for design guidelines.
FIGURE 11. UNDERVOLTAGE-OVERVOLTAGE WINDOW
DCOK
FAULT
-5%
-3%
EANI
+3%
+5%
EAI
FIGURE 12. OUTPUT TRANSIENT REJECTION
EANI
EAI
VOUT
EAO
VOUT
EAI
0.90V
1.00V
1.10V
1.00V
0.95V
1.05V
15N
18K
1K
-
+
R
C
ISL6551
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISL6551AB 制造商:Rochester Electronics LLC 功能描述:FULL BRIDGE CONTROLLER - Bulk
ISL6551AB-T 制造商:Rochester Electronics LLC 功能描述:- Bulk
ISL6551ABZ 功能描述:IC REG CTRLR FLYBACK PWM 28-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無(wú) 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR)
ISL6551ABZ-T 功能描述:IC REG CTRLR FLYBACK PWM 28-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無(wú) 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR)
ISL6551AR 制造商:Rochester Electronics LLC 功能描述: 制造商:Intersil Corporation 功能描述:
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