- 您现在的位置：买卖IC网 > Sheet目录1227 > MAX14562ETA+T (Maxim Integrated Products)IC OVP 36V PROTECT W/REG 8-TDFN
36V-Capable Overvoltage Protector with
Regulated Output Voltage
Functional Diagram
Q1
IN
PROV CONTROL
OUT
OVLO CONTROL
HV CP PROTECTION
MAX14562
BG
POK
ACOK
IN OVLO
TIMING
AND
V BG
CONTROL LOGIC
EN
OK
EN
Detailed Description
The MAX14562 features the overvoltage protection to
the charger input V BUS line when a travel adapter (TA) is
used. In addition, the MAX14562 features a low 160m I
(typ) on-resistance internal FET (Q1) and protects the
low-voltage system against voltage faults up to +36V.
The MAX14562 features three-step overvoltage pro-
tection. When the input is below the preset regulated
output-voltage (V PROV ) threshold, the output follows
the input minus the voltage drop across the pass FET
(R ON x I LOAD ). When the input exceeds V PROV , the
output is regulated to V PROV . If the input rises further
and exceeds the overvoltage lockout cutoff (V OVLO )
threshold, the output is disconnected from the input. The
MAX14562 also features thermal shutdown protection
against short-circuit events.
Soft-Start
To minimize inrush current, the MAX14562 features a
soft-start capability to slowly turn on Q1.
Soft-start function permits the device to charge the load
capacitor up to 1000 F F by controlled current. The soft-
start is initiated when the debounce time ends (OUT
8
starts charging) and ends when ACOK is asserted low,
15ms (typ).
Linear Mode
When the input voltage exceeds the minimum IN volt-
age but is below V PROV , OUT follows IN with a minimum
voltage drop (R ON x I LOAD ) across pass FET after the
debounce time, t DEB , and ACOK is asserted.
The LDO mode needs a capacitor on OUT. The recom-
mended value is 10 F F for load currents up to 800mA
(Table 1).
Preset Regulated Output-Voltage Mode
(PROV)
When IN goes above the preset regulated output voltage
(V PROV ), Q1 provides a constant voltage of V PROV at
OUT, and ACOK is asserted.
Table 1. Recommended Load Capacitance
LOAD CURRENT (mA) LOAD CAP (μF)
10 1
50 2.2
100 4.7
800 10
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
MAX14830EVKIT#
EVAL KIT QUAD SER UART MAX14830
MAX1493EVKIT+
KIT EVAL FOR MAX1493
MAX16031EVKIT+
KIT EVALUATION FOR MAX1603
MAX16050EVKIT+
EVAL KIT FOR MAX16050
MAX16929EVKIT+
KIT EVALUATION FOR MAX16929
MAX16946EVKIT+
KIT EVALUATION FOR MAX16946
MAX17015EVKIT+
KIT EVAL FOR MAX17015
MAX17021EVKIT+
EVAL KIT FOR MAX17021
相关代理商/技术参数
MAX14562EXT+T
功能描述:监控电路 OVP w/Voltage Clamp/Protection RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MAX14566AEETA+
制造商:Maxim Integrated Products 功能描述:2ND GEN. USB DEVICE THAT COMBINES A USB HI-SPEED ANALOG SWI - Rail/Tube
MAX14566AEETA+T
功能描述:模拟开关 IC USB HiSpeed an swtch w/USB host chrgr IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16
MAX14566BEETA+
制造商:Maxim Integrated Products 功能描述:SECOND GENERATION USB DEVICE THAT COMBINES A USB HI-SPEED AN - Rail/Tube
MAX14566BEETA+T
功能描述:模拟开关 IC USB HiSpeed an swtch w/USB host chrgr IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16
MAX14566EETA+
制造商:Maxim Integrated Products 功能描述:2ND GEN. USB DEVICE THAT COMBINES A USB HI-SPEED ANALOG SWI - Rail/Tube
MAX14566EETA+T
功能描述:模拟开关 IC USB HiSpeed an swtch w/USB host chrgr IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16
MAX14566EETA+TGH7
功能描述:模拟开关 IC Second generation USB device that combines a USB Hi-Speed analog switch with a USB host charger IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16