L4936NH STMicroelectronics, L4936NH Datasheet

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L4936NH

Manufacturer Part Number
L4936NH
Description
DUAL MULTIFUNCTION VOLTAGE REGULATOR
Manufacturer
STMicroelectronics
Datasheet

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Part Number:
L4936NH
Manufacturer:
ST
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PIN CONNECTION (top view)
June 2000
PUT
STANDBY MODE
THAN 250 A, IN STANDBY MODE
20V
UP TO 40V
STANDBY OUTPUT VOLTAGE
BY THE EXTERNAL CAPACITOR
DERVOLTAGE
PROTECTIONS
STANDBYOUTPUT VOLTAGEPRECISION 5V
OUTPUT 2 TRACKED TO THE STANDBY OUT-
OUTPUT
VERY LOW QUIESCENT CURRENT, LESS
OUTPUT 2 VOLTAGE SETTABLE FROM 5 TO
OUTPUT CURRENTS : I
VERY LOW DROPOUT (max 0.4V/0.6V)
OPERATING TRANSIENT SUPPLY VOLTAGE
POWER-ON RESET CIRCUIT SENSING THE
POWER-ON RESET DELAY PULSE DEFINED
EARLY WARNING OUTPUT FOR SUPPLY UN-
THERMAL SHUTDOWN AND SHORTCIRCUIT
2%
TAB CONNECTED TO PIN 6
2
DISABLE
DUAL MULTIFUNCTION VOLTAGE REGULATOR
01
11
10
9
8
7
6
5
4
3
2
1
= 50mA, I
FUNCTION
D94AT154
02
= 500mA
OUT2
ADJ
OUT1
SO
RES
GND
EN
CT
N.C.
SI
VS1/VS2
FOR
DESCRIPTION
TheL4936N/NHare monolithic integrated dual volt-
age regulators with two very low dropout outputs
and additionalfunctionssuchas power-onresetand
input voltage sense. They are designed for supply-
ing microcomputer controlled systems specially in
automotive applications.
ORDERING NUMBERS: L4936N (Multiwatt 11)
TAB CONNECTED TO PIN 6
Multiwatt 11
L4936N/NH
L4936NH (Multiwatt 15)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Multiwatt 15
D95AT155
OUT2
ADJ
OUT1
SO
N.C.
N.C.
RES
GND
EN
N.C.
CT
N.C.
SI
VS1
VS2
1/11

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L4936NH Summary of contents

Page 1

... They are designed for supply- ing microcomputer controlled systems specially in automotive applications. OUT2 ADJ OUT1 SO RES GND EN CT N.C. SI VS1/VS2 TAB CONNECTED TO PIN 6 L4936N/NH Multiwatt 15 L4936NH (Multiwatt 15) 15 OUT2 14 ADJ 13 OUT1 N.C. 10 N.C. 9 RES 8 GND ...

Page 2

L4936N/NH BLOCK DIAGRAM V S1 REFERENCE 1.23V RESET SI SENSE (optional) THERMAL DATA Symbol R Thermal Resistance Junction-Case thj-case Note: VS1, VS2, SI pins are rated at 1500V versus positive ESD according to human body model; o ...

Page 3

ABSOLUTE MAXIMUM RATINGS Symbol V DC Supply Voltage S Transient Supply Voltage (T < 1s Junction and Storage Temperature Range j stg I Sense Input Current ( Enable Input Current ( ...

Page 4

L4936N/NH ELECTRICAL CHARACTERISTICS (V Symbol Parameter V Operating Supply Voltage S V Standby Output Voltage Output Voltage 2 Tracking Error O2 O1 (note 1) I ADJ Input Current ADJ V Dropout Voltage 1 DP1 V Input ...

Page 5

ELECTRICAL CHARACTERISTICS (continued) RESET Symbol Parameter V Reset Low Threshold Voltage Rt V Reset Threshold Hysteresis Rth t Reset Pulse Delay RD t Reset Reaction Time RR V Reset Output LOW Voltage RL I Reset Output HIGH Leakage LRES V ...

Page 6

L4936N/NH Figure 1 : Output Voltage vs. Input Voltage. Figure 2 : QuiescentCurrent vs. Supply Voltage. Figure 3 : Programmable Output 2 Voltage with External Resistors. 6/11 ...

Page 7

RESET CIRCUIT Theblock circuit diagramofthe resetcircuit is shown in fig.4. Thereset circuit supervisesthe standbyout- put voltage. The reset threshold of 4.7V is defined by the internal reference voltage and the standby output divider. The reset pulse delay time t , ...

Page 8

L4936N/NH Figure 5 : Typical Reset Output Waveforms. 1.5V 8/11 ...

Page 9

DIM. MIN. TYP. MAX. MIN. TYP 2. 0.039 E 0.49 0.55 0.019 F 0.88 0.95 0.035 G 1.45 1.7 1.95 0.057 0.067 G1 16.75 17 17.25 0.659 0.669 H1 19.6 0.772 ...

Page 10

L4936N/NH mm DIM. MIN. TYP. MAX. MIN 2.65 C 1.6 E 0.49 0.55 0.019 F 0.66 0.75 0.026 G 1.14 1.27 1.4 0.045 G1 17.57 17.78 17.91 0.692 H1 19.6 0.772 H2 20.2 L 20.57 L1 18.03 ...

Page 11

... 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. This publication supersedes and replaces all information previously supplied. STMi- croelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics ...

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