参数资料
型号: MAX1876AEEG+
厂商: Maxim Integrated Products
文件页数: 11/22页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 24-QSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
PWM 型: 电压模式
输出数: 2
频率 - 最大: 660kHz
电源电压: 4.5 V ~ 23 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 24-SSOP(0.154",3.90mm 宽)
包装: 管件
Dual 180° Out-of-Phase Buck Controllers with
Sequencing/Prebias Startup and POR
UVLO
A
B
C
D
E
F
G
H
I
J
K
L
M
V L
EN
VOUT1
SS1
VOUT2
SS2
DH1
DL1
DH2
DL2
N
MAX1858A POWER-ON-OFF SEQUENCING DEFINITIONS
O
P
SYMBOL
UVLO
V L
EN
VOUT1
SS1
VOUT2
SS2
DH1
DL1
DH2
DL2
A
B
C
DEFINITION
Undervoltage threshold value is provided in the
Electrical Characteristics table.
Internal 5V Linear-Regulator Output
Active-High Enable Input
Regulator 1 Output Voltage
Regulator 1: Internal Soft-Start Input Signal into Error Amplifier
Regulator 2 Output Voltage
Regulator 2: Internal Soft-Start Input Signal into Error Amplifier
Regulator 1: High-Side Gate-Driver Output
Regulator 1: Low-Side Gate-Driver Output
Regulator 2: High-Side Gate-Driver Output
Regulator 2: Low-Side Gate-Driver Output
V L rising while below the UVLO threshold. EN is low.
V L is greater than the UVLO threshold. EN is low.
EN is pulled high. DH1 and DL1 start switching. DH2 and
DL2 are off.
SYMBOL
D
E
F
G
H
I
J
K
L
M
N
O
P
DEFINITION
Normal operation
V L enters UVLO.
V L exits UVLO.
Resumes normal operation. DH1 and DL1 start switching.
DH2 and DL2 are off.
EN is pulled low and then high.
VOUT1 must reach 0V before restarting due to the cycling
of the enable in region H (above).
VOUT1 recovers.
VOUT2 recovers.
V L enters UVLO before VOUT2 fully recovers.
V L exits UVLO.
UVLO latches DL_ low.
Exiting UVLO: DL_ remains latched low until the first fall
of DH_ is detected.
DL_ is high after EN is pulled low and soft-stop is complete.
Figure 4. MAX1858A Detailed Power-On-Off Sequencing
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MAX1876AEEG+ 功能描述:电压模式 PWM 控制器 Dual 180 Out PWM Step-Down RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel
MAX1876AEEG+T 功能描述:电压模式 PWM 控制器 Dual 180 Out PWM Step-Down RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel
MAX1876AEEG-T 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
MAX1876EEG 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
MAX1876EEG+ 功能描述:电压模式 PWM 控制器 Dual 180 Out PWM Step-Down RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel