ZSPM4121KIT ZMDI, ZSPM4121KIT Datasheet - Page 9

• Manufacturer Part Number: ZSPM4121KIT
• Description: Power Management IC Development Tools DC-DC Converter Kit for ZSPM4121
• Manufacturer: ZMDI
• Type: Linear Regulators - Standardr

Specifications of ZSPM4121KIT

• Rohs: yes
• Product: Evaluation Kits
• Tool Is For Evaluation Of: ZSPM4121
• Input Voltage: 1.2 V to 5.5 V
• Output Voltage: 3 A
• Maximum Operating Temperature: + 55 C
• Minimum Operating Temperature: - 20 C
• Output Current: 3 A
• For Use With: ZSPM4121

3
The ZSPM4121 battery management load switch consists of an internally generated threshold voltage,
comparator with hysteresis, slew rate control for the load switch, a P-channel load switch, and an open-drain
indicator pin. When the input battery voltage is above the factory-configured threshold, the load switch is on (the
On Mode). When the input battery voltage falls to the threshold voltage or below, the load switch is off (the Off
Mode), and the quiescent current draw on the battery is in the order of 100pA (typical). The ZSPM4121 threshold
voltage is programmed at manufacturing to an option in the range of 1.2V to 4.2V with 100mV steps between
options. The 500mV hysteresis between the Off Mode and the On Mode prevents intermittent operation. The
ZSPM4121 also provides over-current protection.
Figure 3.1
Figure 2.5 On Mode / Off Mode Transition Delay
Data Sheet
April 23, 2012
ZSPM4121
Under-Voltage Load Switch for Smart Battery Management
Description of Circuit
ZSPM4121 Block Diagram
© 2012 Zentrum Mikroelektronik Dresden AG — Rev. 1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
Note: At manufacturing, V
customer-selected threshold voltage in the range of
1.2V to 4.2V with 100mV steps between options.
VCC
Regulated
V
THRESH
ZSPM4121
THRESH
is programmed to a
Figure 2.6
Over-Current Retry Performance
GND
NPG
VOUT
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