SC441ATETRT Semtech, SC441ATETRT Datasheet - Page 3

• Manufacturer Part Number: SC441ATETRT
• Description: TVS
• Manufacturer: Semtech

Specifications of SC441ATETRT

• Constant Current: *
• Constant Voltage: *
• Topology: *
• Number Of Outputs: *
• Internal Driver: *
• Type - Primary: *
• Type - Secondary: *
• Frequency: *
• Voltage - Supply: *
• Voltage - Output: *
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP Exposed Pad, 20-eTSSOP, 20-HTSSOP
• Operating Temperature: *
• Current - Output / Channel: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: SC441ATETRTTR

Absolute Maximum Ratings
Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters
specified in the Electrical Characteristics section is not recommended.
NOTES-
(1) Calculated from package in still air, mounted to 3” x 4.5”, 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards.
(2) Tested according to JEDEC standard JESD22-A114-B.
Electrical Characteristics
Unless otherwise specified: V
© 2010 Semtech Corporation
V
Maximum Output Power ………………………………
SW, OVPIN, OVPRTN, VOUT, IO1~IO4 Voltage …… -0.3 to 40V
IOSET Voltage ……………………………………… -0.3 to 2V
SS, COMP Voltage …………………………………
EN, PWM, FFLAG Voltage …………………… -0.3 to V
PGND to AGND ………………………………………
Peak IR Reflow Temperature …………………………… 260°C
ESD Protection Level
Parameter
Input Supply
Under-Voltage Lockout Threshold
UVLO Hysteresis
V
V
Oscillator
Switching Frequency
Internal Power Switcher
Switch Current Limit
Switch Saturation Voltage
Switch Leakage Current
Maximum Duty Cycle
Minimum Duty Cycle
Minimum On-Time
Compensation
Sourcing Current
Sinking Current
IN
IN
IN
Pin: Supply Voltage …………………………… -0.3 to 25V
Quiescent Supply Current
Supply Current in Shutdown
(1)
(2)
………………………………
IN
=12V, -40°C < T
A
= T
J
< 105°C, R
UVLO-TH
Symbol
UVLO-H
I
EA_SOURCE
T
I
I
D
EA_SINK
D
ON_MIN
S_LEAK
I
V
I
IN_Q
I
IN_S
F
SW
MAX
SAT
MIN
S
-0.3 to 4V
IOSET
IN
± 0.3V
+0.3V
2.5kV
=1.74kW.
22W
EN / PWM = low
Recommended Operating Conditions
Thermal Information
No switching
Conditions
V
Input Voltage Range ……………………………… 4.5V~21V
Output Voltage …………………………………… Up to 36V
LED Current …………………………………… Up to 150mA
Junction to Ambient
Maximum Junction Temperature ……………………… 150°C
Storage Temperature ………………………… -65 to +150°C
Lead Temperature (Soldering) 10 sec ………………… 260°C
V
COMP
V
I
COMP
SW
IN
rising
= 1A
= 0.5V
= 2V
(1)
……………………………… 39°C/W
Min
0.56
3.0
88
Typ
250
200
100
4.3
0.7
4.1
0.1
93
3
5
6
www.semtech.com
Max
4.45
0.84
350
1
1
0
SC441A
Units
MHz
mA
mV
mV
µA
µA
µA
µA
ns
%
%
V
A
3