LTC3783EDHD#TRPBF Linear Technology, LTC3783EDHD#TRPBF Datasheet - Page 4

• 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
ELECTRICAL CHARACTERISTICS
SYMBOL
R
t
Low Dropout Regulator
V
UVLO
ΔV
ΔV
V
I
GATE/PWMOUT Drivers
t
t
I
I
V
R
t
t
I
I
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3783E is guaranteed to meet performance specifi cations
over the 0°C to 85°C operating temperature range. Specifi cations over
the –40°C to 85°C operating temperature range are assured by design,
characterization and correlation with statistical process controls. The
LTC3783I is guaranteed to meet performance specifi cations over the full
–40°C to 125°C operating temperature range.
Note 3: T
dissipation P
4
range, otherwise specifi cations are T
ON(MIN)
INTVCC(SD)
r(GATE)
f(GATE)
PK(GATE,RISE)
PK(GATE,FALL)
r(PWMOUT)
f(PWMOUT)
PK(PWMOUT,RISE)
PK(PWMOUT,FALL)
INTVCC
DROPOUT
PWMIN
SYNC
PWMIN
ΔV
INTVCC
LDO(LOAD)
IN
J
T
T
is calculated from the ambient temperature T
J
J
D
= T
= T
according to the following formula:
A
A
+ (P
+ (P
PARAMETER
SYNC Input Pull-Down Resistance
Minimum On-Time
INTV
INTV
Thresholds
INTV
INTV
INTV
Bootstrap Mode INTV
Current in Shutdown
GATE Driver Output Rise Time
GATE Driver Output Fall Time
GATE Driver Peak Current Sourcing
GATE Driver Peak Current Sinking
PWMIN Pin Input Threshold Voltages
PWMIN Input Pull-Up Resistance
PWMOUT Driver Output Rise Time
PWMOUT Driver Output Fall Time
PWMOUT Driver Peak Current Sourcing
PWMOUT Driver Peak Current Sinking
D
D
CC
CC
CC
CC
CC
• 43°C/W) for the DFN
• 38°C/W) for the TSSOP
Regulator Output Voltage
Undervoltage Lockout
Line Regulation
Load Regulation
Dropout Voltage
A
CC
= 25°C. V
Supply
IN
= 12V , V
A
and power
CONDITIONS
With Sense Resistor, 10mV Overdrive
No R
V
Rising INTV
Falling INTV
Hysteresis
12V ≤ V
0 ≤ I
V
V
V
C
C
V
V
Rising PWMIN
Falling PWMIN
Hysteresis
C
C
V
V
RUN
OV/FB
IN
SENSE
SENSE
L
L
GATE
GATE
L
L
PWMOUT
PWMOUT
= 3300pF (Note 7)
= 3300pF (Note 7)
= 3300pF (Note 7)
= 3300pF (Note 7)
= 7V, I
INTVCC
SENSE
= 1.5V , V
The
= 0V
= 7V
= 1.5V
= 0V
= 7V
IN
INTVCC
= 0V
= 7V
≤ 36V
l
Mode
≤ 10mA
CC
CC
denotes the specifi cations which apply over the full operating temperature
SYNC
= 10mA
Note 4: The dynamic input supply current is higher due to power MOSFET
gate charging (Q
Note 5: The LTC3783 is tested in a feedback loop which servos V
V
(0.3V ≤ V
Note 6: In a synchronized application, the internal slope compensation is
increased by 25%. Synchronizing to a signifi cantly higher ratio will reduce
the effective amount of slope compensation, which could result in sub-
harmonic oscillation for duty cycles greater than 50%
Note 7: Rise and fall times are measured at 10% and 90% levels.
FBP
= 0V , V
= V
VREF
FBP
ITH
≤ 1.2V; midpoint = 0.75V).
= V
with the I
G
REF
• f
, R
OSC
TH
T
). See Operation section.
= 20k, unless otherwise specifi ed.
pin forced to the midpoint of its voltage range
l
MIN
6.5
1.8
–1
–0.1
0.25
0.50
TYP
100
170
300
300
100
2.3
2.1
0.2
0.5
1.6
0.8
0.8
25
15
15
30
16
7
2
8
1
MAX
500
7.5
2.5
6
FBN
UNITS
to
mV/V
3783fb
mV
kΩ
kΩ
μA
μA
ns
ns
ns
ns
ns
ns
%
V
V
V
V
A
A
V
V
V
A
A