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参数资料
| 型号： | ISL6551EVAL1 |
| 厂商： | Intersil |
| 文件页数： | 21/26页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD ISL6551 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，隔离 |
| 输出电压： | 3.3V |
| 电流 - 输出： | 60A |
| 输入电压： | 36 ~ 75 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 470kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ISL6551 |
ISL6551
Output Filter
Secondary Drivers
S+
L OUT
MIC4421BM
MIC4421BM
VOUT
C OUT
SYNC2
/LOWER1
IN OUT
SYNP
SYNC1
/LOWER2
IN OUT
SYNN
S–
GND
GND
FIGURE 20A. CURRENT DOUBLER FILTER
FIGURE 22A. INVERTING DRIVERS
V OUT F
L OUT
V OUT
MIC4422BM
MIC4422BM
F CLOCK
C OUT
SYNC1
IN OUT
SYNP
SYNC2
IN OUT
SYNN
FIGURE 20B. CONVENTIONAL FILTER
Current Doubler Filter - Two inductors are needed, but they
GND
GND
can be integrated and coupled into one core. Each inductor
carries half of the load operating at the switching frequency.
Conventional Filter - One inductor is needed. The inductor
carries all the load operating at two times the switching
FIGURE 22B. NON-INVERTING DRIVERS
frequency.
IN OUT
SYNP
Controller
T_SYN
GND
VSS 1
CT 2
28 VDD
27 VDDP1
SYN1
RD 3
R_RESDLY 4
R_RA 5
ISENSE 6
PKILIM 7
BGREF 8
ICL6551
SOIC
26 VDDP2
25 PGND
24 UPPER1
23 UPPER2
22 LOWER1
21 LOWER2
INPUT
UV & OV
SYN2
F SW
IN OUT
GND
SYNN
R_LEB 9
20 SYNC1
INVERTING
NON INVERTING
EANI 12
OUTPUT
(BDAC)
CS_COMP 10
REFERENCE CSS 11
19 SYNC2
18 ON / OFF
17 DCOK
LED
SYN1
SYN2
IC
SYNC2/LOWER1
SYNC1/LOWER2
MIC4421BM
SYNC1
SYNC2
MIC4422BM
EAI
EAO
EAI 13
EAO 14
16 LSTSD
15 SHARE
LSTSD
SHARE
FIGURE 22C. PRIMARY CONTROL
BUS
FIGURE 21. ISL6551 CONTROLLER
ISL6551 Controller - It can be used as a full bridge or push-
pull PWM controller. The QFN package requires less space
than the SOIC package.
21
Inverting Drivers - Inverting the SYNC signals or the
LOWER signals with external high current drivers to drive
the synchronous FETs.
Non-inverting Drivers - Cascading SYNC signals with non-
inverting high current drivers to drive the synchronous FETs.
There is a dead time between SYNC1 and SYNC2. For a
higher efficiency, schottky diodes are normally in parallel
with the synchronous FETs to reduce the conduction losses
during the dead time in high output current applications.
Primary Control - This requires a pulse transformer,
operating at the switching frequency, for isolation. There are
three options to drive the synchronous FETs, as described in
previous lines.
FN9066.5
January 3, 2006
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6551IB | 功能描述:电流型 PWM 控制器 FULL BRIDGE RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6551IB-T | 功能描述:IC REG CTRLR FLYBACK PWM 28-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| ISL6551IBZ | 功能描述:IC REG CTRLR FLYBACK PWM 28-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) |
| ISL6551IBZ-T | 功能描述:IC REG CTRLR FLYBACK PWM 28-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) |
| ISL6551IR | 功能描述:IC REG CTRLR FLYBACK PWM 28-QFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
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