L4947 datasheet(2/6 Pages) STMICROELECTRONICS

tên linh kiện	L4947

Giải thích chi tiết về linh kiện	5V-0.5A VERY LOW DROP REGULATOR WITH RESET

PDF	6 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

DC Input Voltage

DC Reverse Input Voltage

Transient Input Overvoltages :

Load Dump :

5ms

≤ trise ≤ 10ms

τf Fall Time Constant = 100ms

RSOURCE

≥ 0.5Ω

Field Decay :

5ms

≤ tfall ≤ 10ms, RSOURCE ≥ 10Ω

τr Rise Time Constant = 33ms

Low Energy Spike :

trise =1

µs, tfall = 500µs, RSOURCE ≥ 10Ω

fr Repetition Frequency = 5Hz

–18

–80

± 100

Reset Output Voltage

TJ,Tstg

Junction and Storage Temperature Range

– 55 to 150

°C

Note: The circuit is ESD protected according to MIL-STD-883C.

THERMAL DATA

Symbol

Parameter

Value

Unit

Rth j-case

Thermal Resistance Junction-case

Max

3.5

°C/W

PIN CONNECTION (Top view)

TEST CIRCUIT

(*) Min. 20

µF, ESR < 10Ω over full temperature range RP (pull up resistor) and RL (load) are both equal to 1KΩ.

L4947 - L4947R

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