L4947 데이터 시트보기 (PDF) - STMicroelectronics

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L4947

5V-0.5A VERY LOW DROP REGULATOR WITH RESET

STMicroelectronics 

L4947 - L4947R

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Vi

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 = 1µs, tfall = 500µs, RSOURCE ≥ 10Ω

fr Repetition Frequency = 5Hz

VR

TJ, Tstg

Reset Output Voltage

Junction and Storage Temperature Range

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

PIN CONNECTION (Top view)

Value

Unit

35

V

– 18

V

80

V

– 80

V

± 100

V

35

V

– 55 to 150

°C

THERMAL DATA

Symbol

Rth j-case

Parameter

Thermal Resistance Junction-case

TEST CIRCUIT

Value

Unit

Max

3.5

°C/W

(*) Min. 20µF, ESR < 10Ω over full temperature range RP (pull up resistor) and RL (load) are both equal to 1KΩ.

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