L6615 STMicroelectronics, L6615 Datasheet - Page 5

• Manufacturer Part Number: L6615
• Description: High/low side load share controller
• Manufacturer: STMicroelectronics

ELECTRICAL CHARACTERISTCS (continued)
(Tj = -40 to 85°C, Vcc=12V, V
V
(*) Mirror accuracy is defined as :
and it represents the accuracy of the transfer between the voltage sensed and the voltage imposed on the
share bus.
BLOCK DIAGRAM
ADJ AMPLIFIER
V
Symbol
SENSE
V
ADJ(MIN)
COMP(L)
I
I
I
ADJ
R
V
V
OH
OL
Z
T
A
CGA
CGA
= I
ADJ
ADJ
L
Source current
Sink current
Low voltage
Clamp Zener voltage
Max. ADJ output current
Threshold voltage
Emitter resistor
Low saturation voltage
* R
7
7
4
4
SENSE
I
I
CGA
CGA
Parameter
, R
G1
CS+
CS+
R
R
_
_
+
+
CURRENT SENSE
CURRENT SENSE
= R
AMPLIFIER (CSA)
AMPLIFIER (CSA)
A
A
3
3
ADJ
G2
AMPLIFIER (SSA)
AMPLIFIER (SSA)
SHARE SENSE
SHARE SENSE
= 200 )
AMPLIFIER (AOA)
AMPLIFIER (AOA)
=
= 12V, C
ADJ OUTPUT
ADJ OUTPUT
2
2






40 mV
40 mV
----------------------------------------- 1
V
SE NSE
CS-
CS-
R
R
V
V
V
V
200
I
V
I
Guaranteed by design
I
I
COMP
Z
ADJ
ADJ
ADJ
S H
R
R
R
R
COMP
SENSE
COMP
SH
= 1mA
R
-------------- -
UVLO
UVLO
+
+
_
_
= 1V, V
=10 A
=5mA
=1mA
+
+
_
_
R
CG A
resistor SH to GND
G
=1.5V, V
= 1.5V, V
= 5nF to GND, R
=-10mV
Test Condition
–
SENSE






+
+
_
_
BIAS
BIAS
0.7V
0.7V
100
SH
SENSE
R
R
R
R
= 0V
R
R
AMPLIFIER (E/A)
AMPLIFIER (E/A)
Gm ERROR
Gm ERROR
300mV,
=-10mV
R
R
CGA
= 16k , unless otherwise specified;
_
_
+
+
AMPLIFIER (SDA)
AMPLIFIER (SDA)
SHARE DRIVE
SHARE DRIVE
R
R
1
1
Min.
-150
0.05
100
6.5
60
24V
24V
GND
GND
1.5V
1.5V
Typ.
-350
0.15
200
100
1.5
0.7
10
8
8
6
6
5
5
Max.
-400
0.25
300
140
0.4
COMP
COMP
13
SH
SH
V
V
1
CC
CC
L6615
Unit
mA
V
V
V
V
A
A
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