Datasheet

3/13
L6561
Table 5. Electrical Characteristics
(V
CC
= 14.5V; T
amb
= -25°C to 125°C;unless otherwise specified)
Symbol Pin Parameter Test Condition Min. Typ. Max. Unit
SUPPLY VOLTAGE SECTION
V
CC
8 Operating Range after turn-on 11 18 V
V
CC ON
8 Turn-on Threshold 11 12 13 V
V
CC OFF
8 Turn-off Threshold 8.7 9.5 10.3 V
Hys 8 Hysteresis 2.2 2.5 2.8 V
SUPPLY CURRENT SECTION
I
START-U
8 Start-up Current before turn-on (V
CC
=11V) 205090µA
I
q
8 Quiescent Current 2.6 4 mA
I
CC
8 Operating Supply Current C
L
= 1nF @ 70KHz 4 5.5 mA
in OVP condition V
pin1
= 2.7V 1.4 2.1 mA
Iq 8 Quiescent Current V
PIN5
≤150mV, V
CC
> V
CC off
1.4 2.1 mA
8V
PIN5
≤ 150mV, V
CC
< V
CC off
20 50 90 µA
V
Z
8 Zener Voltage I
CC
= 25mA 18 20 22 V
ERROR AMPLIFIER SECTION
V
INV
1 Voltage Feedback Input
Threshold
T
amb
= 25°C 2.465 2.5 2.535 V
12V < V
CC
< 18V 2.44 2.56 V
Line Regulation V
CC
= 12 to 18V 2 5 mV
I
INV
1 Input Bias Current -0.1 -1 µA
G
V
Voltage Gain Open loop 60 80 dB
GB Gain Bandwidth 1 MHz
I
COMP
2 Source Current V
COMP
= 4V, V
INV
= 2.4V -2 -4 -8 mA
Sink Current V
COMP
= 4V, V
INV
= 2.6V 2.5 4.5 mA
V
COMP
2 Upper Clamp Voltage I
SOURCE
= 0.5mA 5.8 V
Lower Clamp Voltage I
Sink
= 0.5mA 2.25 V
MULTIPLIER SECTION
V
MULT
3 Linear Operating Voltage 0 to 3 0 to 3.5 V
Output Max. Slope V
MULT
= from 0V to 0.5V
V
COMP
= Upper Clamp Voltage
1.65 1.9
KGain V
MULT
= 1V V
COMP
= 4V 0.45 0.6 0.75 1/V
CURRENT SENSE COMPARATOR
V
CS
4 Current Sense Reference
Clamp
V
MULT
= 2.5V
V
COMP
= Upper Clamp Voltage
1.6 1.7 1.8 V
I
CS
4 Input Bias Current V
OS
= 0 -0.05 -1 µA
t
d (H-L)
4 Delay to Output 200 450 ns
4 Current Sense Offset 0 15 mV
ZERO CURRENT DETECTOR
V
ZCD
5 Input Threshold Voltage Rising
Edge
(1) 2.1 V
Hysteresis (1) 0.3 0.5 0.7 V
V
ZCD
5 Upper Clamp Voltage I
ZCD
= 20µA4.55.15.9V
V
ZCD
5 Upper Clamp Voltage I
ZCD
= 3mA 4.7 5.2 6.1 V
V
CS
∆
V
mult
∆
-----------------