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參數(shù)資料
| 型號： | ISL6551ARZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Wide-Range Power-Supply Controller 8-PDIP -20 to 85 |
| 中文描述： | DUAL SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC28 |
| 封裝： | 6 X 6 MM, ROHS COMPLIANT, PLASTIC, MO-220VJJC, QFN-28 |
| 文件頁數(shù)： | 16/26頁 |
| 文件大小： | 619K |
| 代理商： | ISL6551ARZ |
16
FN9066.4
July 8, 2005
Additional Applications Information
Table 1 highlights parameter setting for the ISL6551.
Designers can use this table as a design checklist. For
detailed operation of the ISL6551, see Block/Pin Functional
Descriptions.
TABLE 1. PARAMETER SETTING HIGHLIGHTS/CHECKLIST
VDD = 12V at room temperature, unless otherwise stated.
PARAMETER
PIN NAME
FORMULA OR SETTING HIGHLIGHT
UNIT
FIGURE #
Frequency
CT
Set 50% Duty Cycle Pulses with a fixed frequency
kHz
1, 2
Dead Time
RD
DT = M x RD/k
, where M = 11.4
ns
3
Resonant Delay
R_RESDLY
t
RESDLY
= 4.01 x R_RESDLY/k
+ 13
ns
7
Ramp Adjust
R_RA
Vramp = BGREF/(R_RA x 500E-12) x dt
V
-
Current Sense
ISENSE
<Vclamp-200mV-Vramp
V
-
Peak Current
PKILIM
<BGREF and slightly higher than Vclamp
V
6
Bandgap Reference
BGREF
1.263V ±2%, 399k
pull-up, No more than 100
μ
A load
V
-
Leading Edge Blanking
R_LEB
t
LEB
= 2 x R_LEB/k
+ 15, never leave it floating
ns
8, 9
Current Share Compensation
CS_COMP
0.1
μ
for a low current loop bandwidth (100 - 500Hz)
Hz
10
Soft-Start & Output Rise Time
CSS
t
ss
= Vclamp x Css/Iss, t
rise
= EANI x CSS / Iss, Iss = 10
μ
A ±20%
S
4
Clamp Voltage (Vclamp)
CSS
Vclamp = Iss x Rcss, or Reference-based clamp
V
4, 5
Error Amplifier
EANI, EAI, EAO
EANI, EAO < Vclamp
V
-
Share Support
SHARE
30K load & a resistor (1K, typ.) between EANI and OUTPUT REF.
-
-
Latching Shutdown
LATSD
Latch IC off at > 3V
V
-
Power Good
DCOK
±5% with hysteresis, Sink up to 5mA, transient rejection
V
11, 12
IC Enable
ON/OFF
Turn on/off at TTL level
V
-
Reference Ground
VSS
Connect to PGND in only one single point
-
-
Power Ground
PGND
Single point to VSS plane
-
-
Upper Drivers
UPPER1, UPPER2
Capacitive load up to 1.6nF at Fsw = 500kHz
-
-
Lower Drivers
LOWER1, LOWER2 Capacitive load up to 1.6nF at Fsw = 500kHz
-
-
Synchronous Drive Signals
SYNC1, SYNC2
Capacitive load up to 20pF at Fsw = 500kHz
-
-
Bias for Control Circuits
VDD
12V ±10%, 0.1
μ
F decoupling capacitor
V
-
Biases for Bridge Drivers
VDDP1, VDDP2
Need decoupling capacitors
V
-
ISL6551
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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) >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:- 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝: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)壓器拓撲結(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 上升時間: 下降時間: 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 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| ISL6551IB-T | 功能描述:IC REG CTRLR FLYBACK PWM 28-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝: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) |
| ISL6551IBZ | 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)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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) |
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