LTC3783EDHD#TRPBF Linear Technology, LTC3783EDHD#TRPBF Datasheet - Page 8

• Manufacturer Part Number: LTC3783EDHD#TRPBF
• Description: IC LED DRIVER PWM CONTROL 16-DFN
• Manufacturer: Linear Technology
• Type: PWM Controlr

Specifications of LTC3783EDHD#TRPBF

• Constant Current: Yes
• Constant Voltage: Yes
• Topology: Flyback, PWM, SEPIC, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: No
• Type - Primary: Automotive, General Purpose
• Frequency: 20kHz ~ 1MHz
• Voltage - Supply: 3 V ~ 36 V
• Mounting Type: Surface Mount
• Package / Case: 16-DFN
• Operating Temperature: -40°C ~ 85°C
• Internal Switch(s): No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Current - Output / Channel: -
• Efficiency: -

LTC3783
PIN FUNCTIONS
I
current comparator input threshold increases with this control
voltage, which is the output of the g
Nominal voltage range for this pin is 0V to 1.40V.
RUN (Pin 16): The RUN pin provides the user with an ac-
curate means for sensing the input voltage and program-
ming the start-up threshold for the converter. The falling
BLOCK DIAGRAM
8
TH
(Pin 15): Error Amplifi er Output/Compensation Pin. The
14
13
15
10
5
6
3
2
1
7
FREQ
SYNC
I
FBP
FBN
OV/FB
SS
I
PWMIN
INTV
LIM
TH
CC
1.9V
–
+
A
IVMODE
V
REF
–
–
+
+
–
0.615V
LDO
m
EA
type error amplifi er.
1 S
0
V
REF
V-TO-I
OV/FB
2.23V
V
REF
+
–
+
–
SLOPE
COMP
OSC
50mA
OV
UV
RUN pin threshold is nominally 1.248V and the comparator
has 100mV hysteresis for noise immunity. When the RUN
pin is grounded, the IC is shut down and the V
current is kept to a low value (20μA typ).
Exposed Pad (Pin 17): Ground Pin. Solder to PCB ground
for electrical contact and rated thermal performance.
CLK
EN
0.2V
S
R
V-TO-I
Q
+
–
SENSOR
(165°C)
TEMP
SLEEP
SS_RESET
OT
BIAS
START-UP
BIAS AND
ITRIP
LOGIC
V
IMAX
REF
+
–
+
–
+
–
PWMOUT
V
0.15V
REF
SENSE
GATE
V
GND
RUN
REF
V
IN
3738 BD
17
12
16
11
4
9
8
IN
supply
3783fb