Datasheet > ISL9502AHRZ-T

ISL9502AHRZ-T

更新时间： 2024-11-27 18:49:07

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
24页	497K
描述
IC,SMPS CONTROLLER,VOLTAGE-MODE,LLCC,48PIN,PLASTIC

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ISL9502AHRZ-T 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	包装说明：	QCCN, LCC48,.27SQ,20
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.82
控制模式：	VOLTAGE-MODE	JESD-30 代码：	S-PQCC-N48
JESD-609代码：	e3	湿度敏感等级：	3
端子数量：	48	最高工作温度：	100 °C
最低工作温度：	-10 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	QCCN	封装等效代码：	LCC48,.27SQ,20
封装形状：	SQUARE	封装形式：	CHIP CARRIER
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
子类别：	Switching Regulator or Controllers	表面贴装：	YES
最大切换频率：	500 kHz	温度等级：	OTHER
端子面层：	Matte Tin (Sn) - annealed	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	NOT SPECIFIED	Base Number Matches：	1

ISL9502AHRZ-T 数据手册

ISL9502A

Data Sheet

February 12, 2008

FN6642.0

Two-Phase PWM Controller for Graphics

Processor Units (GPU)

Features

• Precision Two-phase Buck PWM controller

- 0.5% System Accuracy Over-Temperature

- Active Voltage Positioning Capability

Increase in GPU clock frequency is accompanied by

associated increase in the demand for power and transient-

current slew rate. At the same time, the voltage tolerance

requirement during steady-state and transient operation is

becoming more stringent concerning advanced GPU. The

ISL9502A is a two-phase PWM controller with embedded

gate drivers, which is tailored to meet the power and

dynamic requirements. The two-phase buck converter uses

two interleaved channels to effectively double the output

voltage ripple frequency and thereby reduce output voltage

ripple amplitude with fewer components, lower component

cost, reduced power dissipation, and smaller real estate

area.

• Internal Gate Driver with 2A Driving Capability

• Superior Load Transient Response

• Dynamic Phase Adding/Dropping

• Voltage Selection Input

- 7-bit VSEL Input

- 0.500V to 1.500V in 25mV Steps

- Supports VSEL Change On-the-Fly

• Multiple Current-Sensing Schemes Supported

- Lossless Inductor DCR Current Sensing

- Precision Resistive Current Sensing

The heart of the ISL9502A is the patented R3 (Robust

Ripple Regulator®) modulator. Compared with the traditional

multi-phase buck regulator, R3 technology has the fastest

transient response. This is due to the R3 modulator

commanding variable switching frequency during a load

transient.

• Thermal Monitor

• User Programmable Switching Frequency

• Differential Remote GPU Voltage Sensing

• Static and Dynamic Current Sharing

• Overvoltage, Undervoltage and Overcurrent Protection

• Pb-Free (RoHS Compliant)

At heavy load operation of the active mode, ISL9502A

commands the two phase continuous conduction mode (CCM)

operation. While the pin SET3 is asserted at the medium or

light load, the ISL9502A smoothly disables one phase and

operates in a one-phase operation. Once in one-phase

operation, when the GPU further lowers the load current, the

ISL9502A enables diode emulation to maximize efficiency at

light load depending on the logic of SET1 and SET2.

Ordering Information

PART

NUMBER

(Note)

TEMP.

RANGE

(°C)

PART

MARKING

PACKAGE

(Pb-free)

PKG.

DWG. #

A 7-bit digital-to-analog converter (DAC) allows dynamic

adjustment of the output voltage from 0.500V to 1.500V with

25mV step. A 0.5% system accuracy of the core output

voltage over-temperature is achieved by the ISL9502A.

ISL9502AHRZ

ISL9502 AHRZ -10 to +100 48 Ld 7x7 QFN L48.7x7

ISL9502AHRZ-T* ISL9502 AHRZ -10 to +100 48 Ld 7x7 QFN L48.7x7

*Please refer to TB347 for details on reel specifications.

NOTE: These Intersil Pb-free plastic packaged products employ special

Pb-free material sets; molding compounds/die attach materials and

100% matte tin plate PLUS ANNEAL - e3 termination finish, which is

RoHS compliant and compatible with both SnPb and Pb-free soldering

operations. Intersil Pb-free products are MSL classified at Pb-free peak

reflow temperatures that meet or exceed the Pb-free requirements of

IPC/JEDEC J STD-020.

A unity-gain differential amplifier is provided for remote GPU

die sensing. This allows the voltage on the GPU die to be

accurately measured and regulated. Current sensing can be

realized using either lossless inductor DCR sensing or

precision resistor sensing. A single NTC thermistor network

can thermally compensate the gain and the time constant of

the DCR variations. Droop control, also referred to as

adaptive voltage positioning (AVP), is implemented in

ISL9502A to reduce output decoupling capacitors and

achieve more cost-effective transient-load regulation.

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

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