LT3519IMS-PBF Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LT3519IMS-PBF Datasheet PDF : 20 Pages
| |||
BLOCK DIAGRAM
RSENSE
LED ARRAY
11
ISP
12
ISN
s4
LT3519/LT3519-1/LT3519-2
COUT
PWM
3
PWM
10
CATHODE
D1
7
ANODE
L1
VIN
6
SW
VIN 5
CTRL
14
100mV
–+
–
+
1.1V
A1
+
R1
FB
13
R2
SHDN/UVLO
4
2.2μA
Q3
1.22V
1.22V
+
A2
–
VIN
+
–
G4
+
A3
+
ERROR
AMPLIFIER
BANDGAP
AND
BIAS
VIN
VREF
15
–
A6
+
2V
140μA
92k
Q2
NOTE: THE MAXIMUM ALLOWED Q4 COLLECTOR CURRENT IQ4 IS 2mA.
CIN
–
G1
RC
A4
RQ
+
S
CC
PWM
COMPARATOR
G3
MAIN SWITCH
DRIVER
G2
Q1
MAIN
SWITCH
RAMP
GENERATOR
OSCILLATOR
A5
FB +
1.16V –
RS
GND
1, 8, 9, 16
OPENLED
2
Q4 IQ4
3519 BD
3519fa
7
Share Link: 