Datasheet > BUK212-50Y,127

BUK212-50Y,127

更新时间： 2024-02-17 03:39:27

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
2页	77K
描述
IC 25 A BUF OR INV BASED PRPHL DRVR, PZFM5, SOT-263B, TO-220, 5 PIN, Peripheral Driver

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BUK212-50Y,127 数据手册

Automotive Power

Short-circuit protection

TOPFET applications of high-side switches

Designed to meet the demands of the harsh automotive

environment, Philips’ TOPFETs integrate a wide array of

sophisticated control and protection measures into highly

robust devices.They offer a uniquely simple design-in process

for protected PowerMOS applications.

S e m i c o n d u c t o r s

Philips’ BUK2xx-50Y single-channel TOPFET family of 50V high-side switches

offers an extensive range of safety features including protection against short

circuits. Depending on the severity of the short circuit, the devices respond

in one of two ways: a very rapid latched short-circuit trip or a slower

thermal over-temperature protection.

Latched short-circuit protection

A latched short-circuit trip will occur when both the following conditions

are met:

1. The time elapsed since switch-on is greater than the parameter t_dsc

Typically t_dsc= 180 µs.

2. The battery-load voltage,V_BL, is greater than the trip threshold voltage,

V_BL(to), which is approximately two-thirds of the battery-ground voltage,

V_BG. In this case, the device is actively limiting the load current to some

value I_L(lim)

Under the above circumstances, the device latches OFF and stays latched

OFF until the input is toggled low and then high again, or the battery supply

is removed and replaced. As an example we use the following typical values:

V_BG= 16V, V_BL(to)= 10V and I_L(lim)= 18 A.Then the maximum load

resistance that will trip the short-circuit detector is

Key features

• No external components required as protection is fully integrated

within the TOPFET

• Integrated R_Gfor reverse battery and supply transients protection

• Very low power dissipation due to low on-state resistance

• Very low quiescent current

R_L= (V_BG–V_BL(to)) / I_L= (16 – 10) / 18 = 0.333 Ω

• Diagnostic status indicator

• Virtually undetectable charge pump noise

A load resistance lower than R_Lwill be viewed as a short circuit and cause

the device to switch off. If this short circuit occurs at a time greater than

t_dscafter switch-on (short circuit while already ON) the device will be

tripped within a few microseconds. However, if the short circuit is already

present at switch-on (turn-on into short circuit) the device will only trip

after a delay equal to t_dsc.This delay ensures there is no unwanted tripping

during device turn on.

Key benefits

• Input and status circuits see past the internal R_Gand refer their levels

to true ground

• Low EMC emissions

Key applications

• 12 and 24V grounded loads

• High in-rush current loads

• Inductive loads

Thermal protection

In a ‘soft’ short circuit there is a gentler overload in which one of the

above conditions is not met and hence the latched short-circuit detector

• Replacements for relays and fuses

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与BUK212-50Y,127相关器件

型号	品牌	获取价格	描述	数据表
BUK213-50Y	NXP	获取价格	Single channel high-side TOPFET
BUK213-50Y,118	NXP	获取价格	BUK208_213_50Y - Single channel high-side TOPFET(tm) D2PAK 5-Pin
BUK213-50Y/T3	NXP	获取价格	IC 3.6 A BUF OR INV BASED PRPHL DRVR, PSSO4, PLASTIC, SOT-426, D2PAK-5, Peripheral Driver
BUK2138-50SYAA	NXP	获取价格	BUK2138-50SYAA
BUK214-50Y	NXP	获取价格	TOPFET high side switch SMD version of BUK209-50Y
BUK215-50Y	NXP	获取价格	TOPFET high side switch SMD version of BUK210-50Y
BUK215-50Y,118	NXP	获取价格	BUK215-50Y - TOPFET high side switch SMD version of BUK210-50Y D2PAK 5-Pin
BUK215-50YT	NXP	获取价格	TOPFET high side switch SMD version
BUK215-50YT/T3	NXP	获取价格	IC 9 A BUF OR INV BASED PRPHL DRVR, PSSO4, PLASTIC, SOT-426, D2PAK-5, Peripheral Driver
BUK216-50Y	NXP	获取价格	BUK216-50Y

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