Datasheet > UP1961S

UP1961S

更新时间： 2024-09-24 01:16:07

品牌	Logo	应用领域
力智 - UPI		/
页数	文件大小	规格书
12页	214K
描述
Dual-Phase MOSFET Drivers DCR current sensing with Phase Extension

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UP1961S 数据手册

uP1961S

Dual-Phase MOSFET Drivers

for DCR current sensing with Phase Extension

Features

General Description

Quad MOSFET Drivers for Dual-Phase

The uP1961S is a high performance gate driver IC with

Phase Extension Module (PEM). The PEM interleaves the

single PWM input and drives dual-phase synchronous

buck power stages. The PEM also extracts and passes

the dual-phase current signals to the controller. When

operating with uPI’s VR controllers with DCR current

balance scheme, the uP1961S can double the phase

number with perfect phase interleaving and channel

current balancing.

Buck Converter with Single PWM Input

One PWM Signal Generates Both Drivers

Alternatively Pass DCR Current Signals of Both

Phase to Controller for Current Balance

Tri-State PWM Input for Bridge Shutdown

Output Disable Control for Bridge Shutdown

Bootstrapped High-Side Drivers

Adaptive Anti-Shoot-Through Protection Circuit

Supply Input Under Voltage Lockout

Low Power Dissipation

Each driver is capable of driving a 5000pF load with 30ns

transition time. This device combined with uPI multiphase

buck PWM controller forms a complete core voltage

regulator for advanced microprocessors.

WQFN3x3 - 16L Package

RoHS Compliant and Halogen Free

The uP1961S features adaptive anti-shoot-through

protection that prevents cross-conduction of the external

MOSFET while maintains minimum deadtime for optimized

efficiency.

Applications

Core Voltage Supplies for Intel and AMD Mobile

Microprocessors

All gate drivers are turned off by pulling low EN pin or

high-impedance at PWM0 pin, preventing rapid output

capacitor discharge during system shutdowns. Another

feature is supply input under voltage lockout. The uP1961S

is available in thermal enhanced WQFN3x3 - 16L package.

High Frequency Low Profile DC/DC Converters

High Current Low Output Voltage DC/DC

Converters

High Input Voltage DC/DC Converters

All-in-one Synchronous Buck Drivers

Ordering Information

Pin Configuration

Order Number

uP1961SQDD

Package

Top Marking

uP1961S

WQFN3x3-16L

Note: PWM0 = 3.3V

PH1

ISP2

PWM0

VCC

Note: uPI products are compatible with the current IPC/

JEDEC J-STD-020 requirement. They are halogen-free,

RoHS compliant and 100% matte tin (Sn) plating that are

suitable for use in SnPb or Pb-free soldering processes.

11 LG1

10 LG2

GND

ISP0

PH2

uP1961S-DS-F0000, Jun. 2016

www.upi-semi.com

12 3 4 5 6 7...12

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