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參數(shù)資料
| 型號(hào)： | IR3622AMTRPbF |
| 廠商： | International Rectifier |
| 英文描述： | HIGH FREQUENCY 2-PHASE, SINGLE OR DUAL OUTPUT SYNCHRONOUS STEP DOWN CONTROLLER WITH OUTPUT TRACKING AND SEQUENCING |
| 中文描述： | 高頻2相，單或雙輸出同步降壓控制器，輸出跟蹤和排序 |
| 文件頁數(shù)： | 6/33頁 |
| 文件大小： | 690K |
| 代理商： | IR3622AMTRPBF |
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IR3622AMPbF
www.irf.com
14
Fig. 10: Ratiometric Power Up / down
Output Voltage Tracking and
Sequencing
The IR3622A can accommodate a full spectrum
of user programmable tracking and sequencing
options using Track, Seq, Enable and Power
Good pins.
Through these pins both simple voltage tracking
such as that required by the DDR memory
application or more sophisticated sequencing
such as ratiometric or simultaneous can be
implemented.
The Seq pin controls the internal current sources
to set the power up or down sequencing. Toggle
this pin high for power up, and toggle this pin low
for power down.
The Track pin is used to determine the second
channel
output
for
either
ratiometric
or
simultaneous by using two external resistors.
Figure 9 shows how these pins are configured for
different sequencing mode.
E/A2
VP2
Fb2
SS2/SD2
ISS2 = 23uA
Track
POR
OCP2
Ihiccup2 = 3uA
64uA
3V
Floating
Vo2
Vo1
RC
RD
RE
RF
VREF
E/A1
VP1
Fb1
SS1/SD1
ISS1 = 23uA
POR
OCP1
Ihiccup1 = 3uA
64uA
3V
Seq
VREF
Vo1
RA
RB
CSS1
Fig. 9: Using Seq and Track pin for different sequencing
In general the R
A and RB set the output voltage
for the first output and R
C and RD set the output
voltage for the second output.
For simultaneous vs. ratiometric, RE and RF can
be selected according to the table below:
Fig. 11: Simultaneously Power up /down
Simultaneously
Ratiometric
Track Pin
R
E=RC , RF=RD
R
E =RA , RF=RB
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IR3622MPBF | 功能描述:IC REG CTRLR BUCK PWM VM 32MLPQ RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 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:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
| IR3622MTRPBF | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 HI FREQ 2-PHASE Single or Dual SYNCH RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| IR3623MPBF | 功能描述:IC REG CTRLR BUCK PWM VM 32MLPQ RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 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:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
| IR3623MPBF_1 | 制造商:IRF 制造商全稱:International Rectifier 功能描述:HIGH FREQUENCY 2-PHASE, SINGLE OR DUAL OUTPUT SYNCHRONOUS STEP DOWN CONTROLLER WITH OUTPUT TRACKING AND SEQUENCING |
| IR3623MTRPBF | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 HI FREQ 2-PHASE Single or Dual SYNCH RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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