參數(shù)資料
型號(hào)： ISL6551AR
廠商： INTERSIL CORP
元件分類： 穩(wěn)壓器
英文描述： ZVS Full Bridge PWM Controller
中文描述： DUAL SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC28
封裝： 6 X 6 MM, PLASTIC, MO-220VJJC, QFN-28
文件頁數(shù)： 9/26頁
文件大?。?/td> 604K
代理商： ISL6551AR
9
FN9066.5
January 3, 2006
Shutdown Timing Diagrams
Shutdown Timing Descriptions
A (ON/OFF) -
When the ON/OFF is pulled low, the soft-start
capacitor is discharged and all the drivers are disabled.
When the ON/OFF is released without a fault condition, a
soft-start is initiated.
B (OVERCURRENT) -
If the output of the converter is over
loaded, i.e., the PKILIM is above the bandgap reference
voltage (BGREF), the soft-start capacitor is discharged very
quickly and all the drivers are turned off. Thereafter, the soft-
start capacitor is charged slowly, and discharged quickly if
the output is overloaded again. The soft-start will remain in
hiccup mode as long as the overload conditions persist.
Once the overload is removed, the soft-start capacitor is
charged up and the converter is then back to normal
operation.
C (LATCHING SHUTDOWN) -
The IC is latched off
completely as the LATSD pin is pulled high, and the soft-start
capacitor is reset.
D (ON/OFF) -
The latch cannot be reset by the ON/OFF.
E (LATCH RESET) -
The latch is reset by removing the
VDD. The soft-start capacitor starts to be charged after VDD
increases above the turn-on threshold VDD
ON
.
F (VDD UVLO) -
The IC is turned off when the VDD is below
the turn-off threshold VDD
OFF
. Hysteresis VDD
HYS
is
incorporated in the undervoltage lockout (UVLO) circuit.
LATSD
ON/OFF
ILIM_OUT
SOFT
START
DRIVER
ENABLE
SOFT-START
SHUTDOWN
PKILIM < BGREF
PKILIM > BGREF
FAULT
FAULT
OFF
OVER
CURRENT
LATCHED
OFF/ON
LATCH
RESET
UNDER VOLTAGE
LOCKOUT
VDD
ON
VDD
OFF
LATCH RESET BY
REMOVING VDD
VDD
A
B
C
D
E
F
LATCH CANNOT BE RESET BY ON/OFF
ISL6551
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISL6551AR-T 制造商:Rochester Electronics LLC 功能描述: 制造商:Intersil Corporation 功能描述:
ISL6551ARZ 功能描述:IC REG CTRLR FLYBACK PWM 28-QFN 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 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 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)
ISL6551ARZ-T 功能描述:IC REG CTRLR FLYBACK PWM 28-QFN 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 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 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)
ISL6551EVAL1 功能描述:EVALUATION BOARD ISL6551 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - DC/DC 與 AC/DC（離線）SMPS 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):升壓 頻率 - 開關(guān):3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969
ISL6551IB 功能描述:電流型 PWM 控制器 FULL BRIDGE RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)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
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