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参数资料
| 型号： | MAX8811EEE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 描述： | IC DRVR DL PHASE HS 16-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 配置： | 高端和低端，同步 |
| 输入类型： | 差分 |
| 延迟时间： | 20ns |
| 电流 - 峰： | 6A |
| 配置数： | 4 |
| 输出数： | 4 |
| 电源电压： | 4.5 V ~ 7 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 带卷 (TR) |
19-3974; Rev 1; 4/07
ATION
EVALU
AVAILA
KIT
BLE
High-Speed, Dual-Phase Driver
with Integrated Boost Diodes
General Description
The MAX8811 2-phase gate driver controls power
MOSFETs in multiphase synchronous step-down con-
verter applications, providing up to 30A output current
per phase. The MAX8811 and MAX8810A (multiphase
power-supply controller) combine to provide an efficient,
low-cost solution for a wide range of multiphase power-
supply applications. The MAX8811 handles system input
voltages up to 26V. Each MOSFET driver is capable of
driving 3000pF capacitive loads with 11ns typical rise
and fall times.
Adaptive shoot-through protection circuitry is imple-
mented to prevent shoot-through currents for the “high-
side off to low-side on ” transition. A programmable
delay is provided for the “low-side off to high-side on”
transition. This maximizes overall converter efficiency
while supporting operation with a variety of MOSFETs.
The MAX8811 provides an easy upgrade path from the
MAX8523 dual driver. Integrated bootstrap diodes
reduce external component count, while an enable
input provides flexibility for power sequencing. The
MAX8811 is available in a space-saving, 16-pin QSOP.
Features
? Dual-Phase Synchronous Buck Driver
? Integrated Bootstrap Diodes
? Up to 26V System Input Voltage
? 6A Peak Gate Drive Current
? Capable of 30A per Phase
? 0.4 Ω /0.9 Ω Low-Side, 0.7 Ω /1.0 Ω High-Side
Drivers (typ)
? Typical 11ns Rise/Fall Times with 3000pF Load
? Adaptive Dead-Time Control
? User-Programmable Delay Time
? Enable Function with 0.04μA (typ) Quiescent
Current in Shutdown
? Space-Saving, Lead-Free, 16-Pin QSOP
Ordering Information
Applications
Processor Core Voltage Regulators
Multiphase Buck Converters
PART
MAX8811EEE+
TEMP RANGE
-40°C to +85°C
PIN-
PACKAGE
16 QSOP
PKG
CODE
E16-4
Voltage-Regulator Modules (VRMs)
Switching Power Supplies
DC-DC Converter Modules
Pin Configuration
+ Denotes a lead-free package.
Typical Operating Circuit
POWER INPUT
GATE-DRIVE SUPPLY
UP TO 26V
TOP VIEW
BST1 1
DH1 2
LX1 3
+
16 BST2
15 DH2
14 LX2
4.5V TO 7V
4
13
VL1
VL2
DH1
BST1
LX1
DL1
2
1
3
5
OUTPUT
+
VL1 4
MAX8811
13 VL2
8
DLY
PGND1
6
DL1 5
12 DL2
PGND1 6
11 PGND2
MAX8811
EN 7
DLY 8
10 PWM2
9
PWM1
OFF
ON
7
9
EN
PWM1
DH2
BST2
LX2
15
16
14
QSOP
PWM CONTROL
10 PWM2
DL2
PGND2
12
11
SIGNALS
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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