l4922 STMicroelectronics, l4922 Datasheet

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l4922

Manufacturer Part Number
l4922
Description
Very Low Drop Regulator With Reset
Manufacturer
STMicroelectronics
Datasheet

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The L4922is a high currentmonolithic voltage regu-
lator with very low voltage drop (0.70 V max at 1 A,
T
The device is internally protected against load
dumps transient of + 60V, reverse polarity, over-
BLOCK DIAGRAM
June 2000
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
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.
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.
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DESCRIPTION
J
= 25 C).
VERY LOW DROP (max. 0.9 V at 1 A) OVER
FULL OPERATING TEMPERATURE RANGE
(– 40 / + 125 C)
LOW QUIESCENT CURRENT (max 70 mA at
1 A) OVER FULL T RANGE
PRECISE OUTPUT VOLTAGE (5 V
OVER FULL T RANGE
POWER ON-OFF INFORMATION WITH SET-
TABLE DELAY
REVERSE BATTERY PROTECTION
SHORT CIRCUIT PROTECTION
THERMAL SHUTDOWN
VERY LOW DROP REGULATOR WITH RESET
4 %)
heating and outputshort circuit : thanks toted for the
automotive and industrial applications.
O RDERING NUMBER : L4922
Pen tawatt
L4922
1/6

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l4922 Summary of contents

Page 1

... TABLE DELAY . REVERSE BATTERY PROTECTION . SHORT CIRCUIT PROTECTION THERMAL SHUTDOWN DESCRIPTION The L4922is a high currentmonolithic voltage regu- lator with very low voltage drop (0.70 V max C). J The device is internally protected against load dumps transient of + 60V, reverse polarity, over- BLOCK DIAGRAM June 2000 This is advanced information on a new product now in development or undergoing evaluation ...

Page 2

... L4922 ABSOLUTE MAXIMUM RATINGS Symbol Parameter V DC Input Voltage Reverse Voltage r V Positive Load Dump Protection (t = 300ms Junction Temperature Range J T Operating Temperature Range op T Storage Temperature Range stg N ote circuit is ESD protected according to MIL-STD -883C THERMAL DATA ...

Page 3

... Theparassitic equivalentseries resistanceof theca- pacitor used adds a zero to the regulation loop. This zero may compromise the stability of the system since its effect tends to cancel the effect of the pole added. In regulatorsthis ESR must be less than 3 and the minimum capacitor value L4922 Typ. Max. Unit ...

Page 4

... L4922 Figure 1 : Typical Reset Output Waveform. Figure 2 : Typical Application Circuit. (*) RECOMMENDED VALUE : ESR < 10 ohm 4/6 > 10 mA) OVER FULL T . out range ...

Page 5

... MECHANICAL DATA 0.189 0.054 0.110 0.053 0.022 0.047 0.041 0.055 0.142 0.276 0.409 0.409 0.715 0.628 0.850 0.894 0.051 0.118 0.622 0.260 0.187 Pentawatt V 0.167 RESIN BETWEEN LEADS L4922 5/6 ...

Page 6

... L4922 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the conse- quences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice ...

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