参数资料
| 型号： | ISL6524CB |
| 厂商： | Intersil |
| 文件页数： | 14/16页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR VRM8.5 PWM TRPL 28-SOIC |
| 标准包装： | 26 |
| 应用： | 控制器，Intel VRM8.5 |
| 输入电压： | 10.8 V ~ 13.2 V |
| 输出数： | 4 |
| 输出电压： | 多重 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | * |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | * |
| 包装： | 管件 |
+12V
VCC
+5V OR LESS
Linear Controllers Transistor Selection
The ISL6524 linear controllers are compatible with both NPN
bipolar as well as N-channel MOSFET transistors. The main
criteria for selection of pass transistors for the linear
ISL6524
UGATE
PHASE
Q1
NOTE:
V GS ≈ V CC -5V
regulators is package selection for efficient removal of heat.
The power dissipated in a linear regulator is
P LINEAR = I O × ( V IN – V OUT )
-
+
LGATE
PGND
Q2
CR1
NOTE:
V GS ≈ V CC
Select a package and heatsink that maintains the junction
temperature below the maximum desired temperature with
the maximum expected ambient temperature.
GND
FIGURE 13. UPPER GATE DRIVE - DIRECT V CC DRIVE
Rectifier CR1 is a clamp that catches the negative inductor
swing during the dead time between the turn off of the lower
MOSFET and the turn on of the upper MOSFET. For best
results, the diode must be a surface-mount Schottky type to
prevent the parasitic MOSFET body diode from conducting. It
is acceptable to omit the diode and let the body diode of the
lower MOSFET clamp the negative inductor swing, but one
must ensure the PHASE node negative voltage swing does
not exceed -3V to -5V peak. The diode's rated reverse
breakdown voltage must be equal or greater to 1.5 times the
maximum input voltage.
14
When selecting bipolar NPN transistors for use with the
linear controllers, insure the current gain at the given
operating V CE is sufficiently large to provide the desired
output load current when the base is fed with the minimum
driver output current.
In order to ensure the strict timing/level requirement of
OUT4, an NPN transistor is recommended for use as a pass
element on this output (Q5). A low gate threshold NMOS
could be used, but meeting the requirements would then
depend on the VCC bias being sufficiently high to allow
control of the MOSFET.
FN9015.3
April 18, 2005
相关PDF资料 |
PDF描述 |
|---|---|
| X5165P-2.7 | IC SUPERVISOR CPU 16K EE 8-DIP |
| X5163V14T1 | IC SUPERVISOR CPU 16K EE 14TSSOP |
| ISL6524ACB | IC CTRLR VRM8.5 PWM TRPL 28-SOIC |
| TC2015-3.0VCTTR | IC REG LDO 3V .1A SOT23A-5 |
| X5163V14IT1 | IC SUPERVISOR CPU 16K EE 14TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6524CBT | 制造商:Intersil Corporation 功能描述: |
| ISL6524CB-T | 功能描述:IC CTRLR VRM8.5 PWM TRPL 28-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| ISL6524CBZ | 功能描述:IC CTLR VRM8.5 PWM TRPL 28-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:2,000 系列:- 应用:控制器，DSP 输入电压:4.5 V ~ 25 V 输出数:2 输出电压:最低可调至 1.2V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:30-TFSOP（0.173"，4.40mm 宽） 供应商设备封装:30-TSSOP 包装:带卷 (TR) |
| ISL6524CBZA | 功能描述:IC CTRLR VRM8.5 PWM TRPL 28-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| ISL6524CBZA-T | 功能描述:IC CTLR VRM8.5 PWM TRPL 28-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:2,000 系列:- 应用:控制器，DSP 输入电压:4.5 V ~ 25 V 输出数:2 输出电压:最低可调至 1.2V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:30-TFSOP（0.173"，4.40mm 宽） 供应商设备封装:30-TSSOP 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。