参数资料
| 型号： | ISL6236AIRZ-T |
| 厂商： | Intersil |
| 文件页数： | 19/37页 |
| 文件大小： | 0K |
| 描述： | IC MAIN PWR CTRLR QUAD 32-QFN |
| 产品培训模块： | Solutions for Industrial Control Applications |
| 标准包装： | 6,000 |
| 应用： | 控制器，笔记本电脑电源系统 |
| 输入电压： | 4.5 V ~ 25 V |
| 输出数： | 4 |
| 输出电压： | 多重 |
| 工作温度： | -40°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN 裸露焊盘（5x5） |
| 包装： | 带卷 (TR) |
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ISL6236A
Typical Performance Curves
LGATE1 5V/DIV
Circuit of Figures 66, 67 and 68, no load on LDO, OUT1, OUT2, V REF3 , and REF, V IN = 12V,
EN2 = EN1 = VCC, V BYP = 5V, PVCC = 5V, V EN_LDO = 5V, T A = -40°C to +100°C, unless
otherwise noted. Typical values are at T A = +25°C. (Continued)
LGATE2 5V/DIV
V OUT1 RIPPLE 20mV/DIV
V OUT1 RIPPLE 50mV/DIV
IL1 5A/DIV
V OUT2 RIPPLE 20mV/DIV
FIGURE 63. LOAD TRANSIENT V OUT1 = 1.5V (SKIP)
IL1 5A/DIV
V OUT2 RIPPLE 20mV/DIV
FIGURE 64. LOAD TRANSIENT V OUT1 = 1.05V (PWM)
LGATE2 5V/DIV
V OUT1 RIPPLE 20mV/DIV
IL2 5A/DIV
V OUT2 RIPPLE 20mV/DIV
FIGURE 65. LOAD TRANSIENT V OUT1 = 1.05V (SKIP)
Typical Application Circuits
The typical application circuits (Figures 66, 67 and 68) generate
the 5V/7A, 3.3V/11A, 1.25V/5A, dynamic voltage/10A, 1.5V/5A,
1.05V/5A and external 14V charge pump main supplies in a
notebook computer. The ISL6236A is also equipped with a
secondary feedback, SECFB, used to monitor the output of the
14V charge pump. In an event when the 14V drops below its
threshold voltage, SECFB comparator will turn on LGATE1 for
300ns. This will refresh an external 14V charge pump without
overcharging the output voltage. The input supply range is
5.5V to 25V.
Detailed Description
The ISL6236A dual-buck, BiCMOS, switch-mode power
supply controller generates logic supply voltages for
notebook computers. The ISL6236A is designed primarily for
battery-powered applications where high efficiency and low
quiescent supply current are critical. The ISL6236A provides
19
a pin-selectable switching frequency, allowing operation for
200kHz/300kHz, 400kHz/300kHz, or 400kHz/500kHz on the
SMPSs.
Light-load efficiency is enhanced by automatic Idle-Mode
operation, a variable-frequency pulse-skipping mode that
reduces transition and gate-charge losses. Each step-down,
power-switching circuit consists of 2 N-Channel MOSFETs, a
rectifier, and an LC output filter. The output voltage is the
average AC voltage at the switching node, which is
regulated by changing the duty cycle of the MOSFET
switches. The gate-drive signal to the N-Channel high-side
MOSFET must exceed the battery voltage, and is provided
by a flying-capacitor boost circuit that uses a 100nF
capacitor connected to BOOT.
Both SMPS1 and SMPS2 PWM controllers consist of a triple
mode feedback network and multiplexer, a multi-input PWM
comparator, high-side and low-side gate drivers and logic. In
FN6453.3
March 18, 2008
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6236EVAL1 | 功能描述:EVAL BOARD 1 FOR ISL6236 RoHS:否 类别:编程器，开发系统 >> 评估板 - 线性稳压器 (LDO) 系列:* 产品变化通告:1Q2012 Discontinuation 30/Mar/2012 设计资源:NCP590MNDPTAGEVB Gerber Files 标准包装:1 系列:- 每 IC 通道数:2 - 双 输出电压:1.8V，2.8V 电流 - 输出:300mA 输入电压:2.1 ~ 5.5 V 稳压器类型:正，固定式 工作温度:-40°C ~ 85°C 板类型:完全填充 已供物品:板 已用 IC / 零件:NCP590MNDP 其它名称:NCP590MNDPTAGEVB-NDNCP590MNDPTAGEVBOS |
| ISL6236EVAL2 | 功能描述:EVAL BOARD 2 FOR ISL6236 RoHS:否 类别:编程器，开发系统 >> 评估板 - 线性稳压器 (LDO) 系列:* 产品变化通告:1Q2012 Discontinuation 30/Mar/2012 设计资源:NCP590MNDPTAGEVB Gerber Files 标准包装:1 系列:- 每 IC 通道数:2 - 双 输出电压:1.8V，2.8V 电流 - 输出:300mA 输入电压:2.1 ~ 5.5 V 稳压器类型:正，固定式 工作温度:-40°C ~ 85°C 板类型:完全填充 已供物品:板 已用 IC / 零件:NCP590MNDP 其它名称:NCP590MNDPTAGEVB-NDNCP590MNDPTAGEVBOS |
| ISL6236IRZA | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers |
| ISL6236IRZAR5281 | 功能描述:IC MAIN PWR CTRLR QUAD 32-QFN 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 |
| ISL6236IRZA-T | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers |
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