Datasheet > ADP3419JRMZ-REEL

ADP3419JRMZ-REEL

更新时间： 2024-01-25 01:36:25

品牌	Logo	应用领域
罗彻斯特 - ROCHESTER		驱动光电二极管接口集成电路驱动器
页数	文件大小	规格书
17页	1132K
描述
HALF BRDG BASED MOSFET DRIVER, PDSO10, LEAD FREE, MSOP-10

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ADP3419JRMZ-REEL 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Transferred	零件包装代码：	MSOP
包装说明：	LEAD FREE, MSOP-10	针数：	10
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.46
高边驱动器：	YES	接口集成电路类型：	HALF BRIDGE BASED MOSFET DRIVER
JESD-30 代码：	S-PDSO-G10	JESD-609代码：	e3
长度：	3 mm	湿度敏感等级：	1
功能数量：	1	端子数量：	10
最高工作温度：	100 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装等效代码：	TSSOP10,.19,20	封装形状：	SQUARE
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
电源：	5 V	认证状态：	Not Qualified
座面最大高度：	1.1 mm	子类别：	MOSFET Drivers
标称供电电压：	5 V	电源电压1-最大：	26 V
电源电压1-分钟：	4 V	表面贴装：	YES
温度等级：	OTHER	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	40
宽度：	3 mm

ADP3419JRMZ-REEL 数据手册

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ADP3419

LOW-SIDE DRIVER SHUTDOWN

CROWBAR FUNCTION

DRVLSD

In addition to the internal low-side drive time-out circuit, the

ADP3419 includes a CROWBAR input pin to provide a means

for additional overvoltage protection. When CROWBAR goes

high, the ADP3419 turns off DRVH and turns on DRVL. The

crowbar logic overrides the overlap protection circuit, the

The low-side driver shutdown

to shut down the synchronous rectifier. Under light load

DRVLSD

allows a control signal

conditions,

reversal of the inductor current to maximize light load

DRVLSD

should be pulled low before the polarity

conversion efficiency.

can also be pulled low for

DRVLSD

shutdown logic, the

logic, and the UVLO protection

reverse voltage protection purposes.

on DRVL. Thus, the crowbar function maximizes the overvolt-

age protection coverage in the application. The CROWBAR can

be either driven by the CLAMP pin of buck controllers, such as

the ADP3422, ADP3203, ADP3204, or ADP3205, or controlled

by an independent overvoltage monitoring circuit.

DRVLSD

When

DRVLSD

is low, the low-side driver stays low. When

is high, the low-side driver is enabled and controlled

by the driver signals, as previously described.

LOW-SIDE DRIVER TIMEOUT

Table 4. ADP3419 Truth Table

In normal operation, the DRVH signal tracks the IN signal and

turns off the Q1 high-side switch with a few 10 ns delay

(t_pdlDRVH) following the falling edge of the input signal. When Q1

is turned off, DRVL is allowed to go high, Q2 turns on, and the

SW node voltage collapses to zero. But in a fault condition such

as a high-side Q1 switch drain-source short circuit, the SW

node cannot fall to zero, even when DRVH goes low. The

ADP3419 has a timer circuit to address this scenario. Every

time the IN goes low, a DRVL on-time delay timer is triggered.

If the SW node voltage does not trigger a low-side turn-on, the

DRVL on-time delay circuit does it instead, when it times out

with t_SW(TO)delay. If Q1 is still turned on, that is, its drain is

shorted to the source, Q2 turns on and creates a direct short

circuit across the V_DCINvoltage rail. The crowbar action causes

the fuse in the V_DCINcurrent path to open. The opening of the

fuse saves the load (CPU) from potential damage that the high-

side switch short circuit could have caused.

CROWBAR

UVLO SD DRVLSD

IN DRVH DRVL

* = Don’t Care.

Rev. A | Page 10 of 16

1...8 9 101112 13 14...17

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与ADP3419JRMZ-REEL相关器件

型号	品牌	描述	获取价格	数据表
ADP3419JRMZ-REEL1	ADI	Dual Bootstrapped, High Voltage MOSFET Driver with Output Disable	获取价格
ADP3421	ADI	Geyserville-Enabled DC-DC Converter Controller for Mobile CPUs	获取价格
ADP3421JRU	ADI	Geyserville-Enabled DC-DC Converter Controller for Mobile CPUs	获取价格
ADP3421JRU-REEL	ADI	IC SWITCHING CONTROLLER, PDSO28, TSSOP-28, Switching Regulator or Controller	获取价格
ADP3421JRU-REEL	ONSEMI	SWITCHING CONTROLLER, PDSO28, TSSOP-28	获取价格
ADP3421JRU-REEL7	ONSEMI	SWITCHING CONTROLLER, PDSO28, TSSOP-28	获取价格

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