Datasheet

LT3782A
7
3782afb
GBIAS2
R2
50k
A18
ONE SHOT
A19
A2
60mV
CH1
CL1
PWM1
A3
R3
3782A BD
C2
2nF
C
IN
20µF
R
FREQ
R
S1
M1
R8
R6
C
OUT
100µF
V
OUT
V
IN
+
C3
2µF
R
S2
V
CC
RUN
SYNC
DELAY
DELAY
DELAY
SLOPE
R
SET
DCL
R
SET
GND
C1
2000pF
R5
2k
C7
10nF
GBIAS2
GBIAS
GBIAS1
BGATE1
BGATE1
BGATE1
SGATE1
BGATE2
V
EE1
V
EE2
V
REF
SENSE1
+
SENSE1
–
SENSE2
+
SENSE2
–
FB
M2
GBIAS1
R7
10
C4
2nF
R9
10
R
F2
R
F1
R1
50k
L1
15µH
D1
D2
L2
15µH
–
+
–
+
6
5
17
27
10
7
V
C
15
SS
14
11
4
SGATE1
SGATE2
1
2
22
21
28
23
8
9
24
20
13
12
19
16
REGULATOR
SLOPE
COMP
OSC
LOGIC
QCK
QD
CH1
SET
RS
7V
+
–
+
0.5V
+
–
+
2.44V
+
–
+
2.5V
+
V
CC
– 2.5V
A6
A11
A12
A5
A7
A8
LOW POWER
SHUTDOWN
V
GBIAS
= V
CC
– 1V AND CLAMPED AT 11V
NOTE:
PACKAGE BOTTOM METAL PLATE (PIN 29)
IS FUSED TO CHIP DIE AGND
A20
A1A4
A17A15
A13
C5
20pF
+
ONE SHOT
BLANKING
A14
A9
–
+
–
+
SLOPE COMP
60mV
A10
R4
BLANKING
–
+
+
–
–
+
CH2
RS
SLOPE COMP
4V
BGATE2
–
+
2.5V
+
+
+
GM
D6
D7
D4
I1
10µA
CH2
CL2
PWM2
A16
SET
BLOCK DIAGRAM