l99pm62gxp STMicroelectronics, l99pm62gxp Datasheet - Page 14

• Manufacturer Part Number: l99pm62gxp
• Description: Power Management Ic With Lin And High Speed Can
• Manufacturer: STMicroelectronics

Detailed description
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The Vs operating range for this circuit is 5.5 V to 18 V. It is important the respect the input
common mode range specified for the operational amplifiers.
The output voltage V3 can be calculated using the following formula:
The circuit in
transistor and R6 which allows setting the current limit.
Figure 5.
Figure 6.
Figure 5
2 to provide the voltage reference for the regulated output voltage V3. This circuit requires
fewer components compared to the configuration in
range (6 V to 18 V).
The output voltage V3 can be calculated using the following formula:
The circuit in
transistor and R5 which allows setting the current limit.
v
v
3
3
=
=
v
----- -
v
----- -
2
2
2
2
⋅
shows a possible configuration with an NPN pass element using voltage regulator
⋅
R
-------------------- - V
R
-------------------- - V
1
1
R
R
Voltage source with external NPN
Voltage source with external NPN and current limitation
+
Figure 4
+
Figure 6
2
2
R
R
2
2
[ ]
[ ]
provides additional current limitation using an additional PNP
provides additional current limitation using an additional NPN
Doc ID 17639 Rev 3
Figure 3
but has a limited V
L99PM62GXP
S
operating