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Renesas Electronics Components Datasheet

ZSPM4121 Datasheet

Under-Voltage Load Switch

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Under-Voltage Load Switch for
Smart Battery Management
ZSPM4121
Datasheet
Brief Description
The ZSPM4121 battery management load switch
can be used to protect a battery from excessive
discharge. It actively monitors the battery voltage
and disconnects the battery from the load if the
battery drops below a set voltage threshold. When
the input battery voltage reaches 500mV above the
set voltage threshold, the load switch turns on and
connects the battery to the load. The 500mV
hysteresis between the Off Mode and the On Mode
prevents intermittent operation.
The voltage threshold (VTHRESH) can be programmed
at manufacturing to a customer-selected set point in
the voltage range of 1.2V to 4.2V in 100mV incre-
ments to support a wide range of applications in con-
sumer, medical, portable, and industrial applications.
This device has ultra-low quiescent current, which
makes it ideal for battery-powered applications.
Typical quiescent current is 100pA in the Off Mode
and 70nA in the On Mode.
The ZSPM4121 includes a slew rate control P-chan-
nel load switch, over-current protection, and an
open-drain power indicator pin (NPG). The slew-rate
controlled turn-on characteristic prevents inrush
current and voltage droop on the voltage. The over-
current limit protects the device in case of an
overload, short-circuit, or ground fault event.
Benefits
Best-in-class ultra-low quiescent current in
Off Mode: 100pA (typical)
Ultra-low quiescent current in On Mode: 70nA
(typical)
Accurate on/off voltage threshold
Low Rds(on): 175mΩ (typical) @ 5V
Features
Threshold voltage options of 1.2V to 4.2V in
100mV steps (factory programmed)
Wide input voltage range: 1.2V to 5.5V
Supervisory over-current limit shutdown: (3A)
Low drop-out disconnect from VCC to loads
Controlled turn-on slew rate
500mV Off Mode to On Mode hysteresis
Related IDT Smart Power Products
ZSPM4141 Ultra-Low-Power Linear Regulator
Available Support
Evaluation Kit
Support Documentation
Physical Characteristics
Package: 8-pin DFN (2mm x 2mm)
ZSPM4121 Block Diagram
ZSPM4121
VCC
Regulated
VTHRESH
VOUT
NPG
© 2016 Integrated Device Technology, Inc.
1
GND
January 29, 2016


Renesas Electronics Components Datasheet

ZSPM4121 Datasheet

Under-Voltage Load Switch

No Preview Available !

Under-Voltage Load Switch for
Smart Battery Management
ZSPM4121
Datasheet
Typical Application Circuit
Typical Applications
Portable batteries
Industrial
Medical
Smart cards
RFID
Charger
ZSPM4121
VCC
VOUT
GND
NPG
Load
Ordering Information
Ordering Code*
ZSPM4121AI1W17
ZSPM4121AI1W21
ZSPM4121AI1W23
ZSPM4121AI1W24
ZSPM4121AI1W25
ZSPM4121AI1W26
ZSPM4121AI1W28
ZSPM4121AI1W30
ZSPM4121KIT
Description
ZSPM4121 Under-Voltage Load Switch—VTHRESH factory set to 1.7V
ZSPM4121 Under-Voltage Load Switch—VTHRESH factory set to 2.1V
ZSPM4121 Under-Voltage Load Switch—VTHRESH factory set to 2.3V
ZSPM4121 Under-Voltage Load Switch—VTHRESH factory set to 2.4V
ZSPM4121 Under-Voltage Load Switch—VTHRESH factory set to 2.5V
ZSPM4121 Under-Voltage Load Switch—VTHRESH factory set to 2.6V
ZSPM4121 Under-Voltage Load Switch—VTHRESH factory set to 2.8V
ZSPM4121 Under-Voltage Load Switch—VTHRESH factory set to 3.0V
ZSPM4121 Evaluation Kit
Package
8-pin DFN / 7” Reel (2500)
8-pin DFN / 7” Reel (2500)
8-pin DFN / 7” Reel (2500)
8-pin DFN / 7” Reel (2500)
8-pin DFN / 7” Reel (2500)
8-pin DFN / 7” Reel (2500)
8-pin DFN / 7” Reel (2500)
8-pin DFN / 7” Reel (2500)
* For a 13” reel (3300 parts), replace the W in the ordering code with an R. Custom VTHRESH values are also available: 1.2V to 4.2V (typical) in 100mV increments.
© 2016 Integrated Device Technology, Inc.
2
January 29, 2016



Part Number ZSPM4121
Description Under-Voltage Load Switch
Maker Renesas
Total Page 3 Pages
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ZSPM4121 Datasheet PDF





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