SGM2521/SGM2521A
SGM2522/SGM2522A
Programmable Current Limit Switches
SG Micro Corp
www.sg-micro.com
NOVEMBER 2018 – R EV. A
GENERAL DESCRIPTION
The SGM2521/SGM2521A/SGM2522/SGM2522A are
compact, feature rich eFuse with a full suite of
protection functions. The wide operating voltage allows
control of many popular DC buses. The precision ±7%
current limit, at room temperature, provides excellent
accuracy and makes the SGM2521/1A/2/2A well suited
for many system protection applications.
Load, source and device protection are provided with
multiple programmable features including over-current
(OC), over-voltage (OV) and under-voltage (UV). 3%
threshold accuracy for UV and OV, ensures tight
supervision of bus voltages and eliminates the need for
supervisor circuitry. Fault flag output (nFLT) is provided
for system status monitoring and downstream load
control.
The SGM2521/1A/2/2A are available in Green SOIC-8
and TDFN-2×3-8BL packages and operate over a
temperature range of -40℃ to +85℃.
TYPICAL APPLICATION
V
IN
4.
5
V to 24
V
Load
IN
ENUV
OVP
SS
GND
ILIM
OUT
SGM2521
R
1
R
2
R
3
SS
C
SS
R
ILIM
nFLT
Figure 1. Typical Application Circuit
FEATURES
● Wide Input Voltage Range from 4.5V to 24V
with Surge up to 30V
● Extremely Low R
DS(ON)
for the Integrated
Protection Switch:
58mΩ (SOIC-8 Package)
57mΩ (TDFN-2×3-8BL Package)
● Programmable Soft-Start Time
● Programmable Current Limit from 260mA to 2A
● ±7% Current Limit Accuracy at T
A
= +25
℃
● Enable Interface Pin
● Short-Circuit Protection
● Over-Voltage Protection
● Fault Output for Thermal Shutdown,
Short-Circuit, UVLO and OVP
● Thermal Shutdown Protection
SGM2521/SGM2521A: Auto-Recovery
SGM2522/SGM2522A: Latched-Off
● -40
℃
to +85
℃
Operating Temperature Range
● Available in Green SOIC-8 and TDFN-2×3-8BL
Packages
APPLICATIONS
White Goods, Appliances
Set-Top Boxes, DVD and Gaming Consoles
HDD and SSD Drives
Smart Meters, Gas Analyzers
Smart Load Switches/USB Switches
Adapter Power Devices
SGM2521/SGM2521A
SGM2522/SGM2522A Programmable Current Limit Switches
2
NOVEMBER 2018
SG Micro Corp
www.sg-micro.com
PACKAGE/ORDERING INFORMATION
MODEL
PACKAGE
DESCRIPTION
SPECIFIED
TEMPERATURE
RANGE
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
SGM2521
TDFN-2×3-8BL -40℃ to +85℃ SGM2521YTDC8G/TR
2521
XXXX
Tape and Reel, 3000
SOIC-8 -40℃ to +85℃ SGM2521YS8G/TR
SGM
2521YS8
XXXXX
Tape and Reel, 4000
SGM2521A
TDFN-2×3-8BL -40℃ to +85℃ SGM2521AYTDC8G/TR
ML6
XXXX
Tape and Reel, 3000
SOIC-8 -40℃ to +85℃ SGM2521AYS8G/TR
SGM
2521AYS8
XXXXX
Tape and Reel, 4000
SGM2522
TDFN-2×3-8BL -40℃ to +85℃ SGM2522YTDC8G/TR
2522
XXXX
Tape and Reel, 3000
SOIC-8 -40℃ to +85℃ SGM2522YS8G/TR
SGM
2522YS8
XXXXX
Tape and Reel, 4000
SGM2522A
TDFN-2×3-8BL -40℃ to +85℃ SGM2522AYTDC8G/TR
ML7
XXXX
Tape and Reel, 3000
SOIC-8 -40℃ to +85℃ SGM2522AYS8G/TR
SGM
2522AYS8
XXXXX
Tape and Reel, 4000
MARKING INFORMATION
NOTE: XXXX = Date Code. XXXXX = Date Code and Vendor Code.
TDFN-2×3-8BL
SOIC-8
Date Code -Week
Date Code -Year
X XX X
Vendor Code
X XXX X
Date Code -Week
Date Code -Year
Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If
you have additional comments or questions, please contact your SGMICRO representative directly.
ABSOLUTE MAXIMUM RATINGS
IN, OUT, ENUV, nFLT, OVP to GND ................. -0.3V to 30V
SS, ILIM to GND .................................................. -0.3V to 6V
Package Thermal Resistance
SOIC-8, θ
JA
........................................................... 107.8℃/W
TDFN-2×3-8BL, θ
JA
................................................. 87.4℃/W
Junction Temperature ................................................. +150℃
Storage Temperature Range ........................ -65℃ to +150℃
Lead Temperature (Soldering, 10s) ............................ +260℃
ESD Susceptibility
HBM ............................................................................. 4000V
RECOMMENDED OPERATING CONDITIONS
Supply Input Voltage ............................................ 4.5V to 24V
Operating Ambient Temperature Range ........ -40℃ to +85℃
Operating Junction Temperature Range ...... -40℃ to +125℃
OVERSTRESS CAUTION
Stresses beyond those listed in Absolute Maximum Ratings
may cause permanent damage to the device. Exposure
to
absolute maximum rating conditions for extended periods
may affect reliability. Functional operation of the device at any
conditions beyond those indicated in the Recommended
Operating Conditions section
is not implied.
ESD SENSITIVITY CAUTION
This integrated circuit can be damaged by ESD if you don’t
pay attention to ESD protection. SGMICRO recommends that
all integrated circuits be handled with appropriate precautions.
Failure
to observe proper handling
and installation procedures
can cause damage. ESD damage can range from subtle
performance
degradation to
complete device failure. Precision
integrated circuits may be more susceptible to damage
because very small parametric changes could cause the
device not to meet its published specifications.
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuit
design, or specifications
without prior notice.