ZSPM4551KIT V1.0 ZMDI, ZSPM4551KIT V1.0 Datasheet - Page 23

• Manufacturer Part Number: ZSPM4551KIT V1.0
• Description: Power Management IC Development Tools Li/Ion converter Kit
• Manufacturer: ZMDI
• Type: Battery Managementr

Specifications of ZSPM4551KIT V1.0

• Product Category: Power Management IC Development Tools
• Rohs: yes
• Product: Evaluation Kits
• Tool Is For Evaluation Of: ZSPM4551
• Input Voltage: 3.5 V to 7.2 V
• Output Voltage: 3.94 V to 4.18 V
• Interface Type: I2C
• Output Current: 1.5 A

3
3.1.
Figure 3.1
3.2.
Note that the internal compensation is optimized for a 4.7µF output capacitor (C
(L
3.2.1.
To keep the output ripple low, a low ESR (less than 35mΩ) ceramic capacitor is recommended for the 4.7µF
output filter capacitor. The ESR should not exceed 100mΩ.
3.2.2.
For best performance, an inductor with a saturation current rating higher than the maximum V
plus the inductor current ripple should be used for the 4.7µH output filter inductor.
3.2.3.
For best performance, a low ESR ceramic capacitor should be used for the 10µF input supply bypass capacitor. If
it is not a low ESR ceramic capacitor, a 0.1µF ceramic capacitor should be added in parallel to C
3.2.4.
For best performance, a low ESR ceramic capacitor should be used for the 100nF bypass capacitor from the VDD
pin to ground.
Data Sheet
December 4, 2012
OUT
ZSPM4551
High-Efficiency Charger for Li-Ion Batteries
). Table 1.3 provides recommended ranges for most of the following components.
Application Circuits
Typical Application Circuit
Selection of External Components
C
L
C
C
OUT
OUT
IN
VDD
Typical Application Circuit for Charging a Lithium-Ion Battery
Bypass Capacitor
Output Inductor
Output Capacitor
Bypass Capacitor for VDD Internal Reference Voltage Output
© 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.
VDD
C
(optional)
R
IN
PULLUP
C
VDD
VIN
GND
SCL
VDD
SDA
EN
ZSPM4551
PGND
VTH_REF
VTHERM
VSENSE
VBAT
NFLT
SW
L
OUT
VDD
(optional)
R
R
PULLUP
SENSE
OUT
C
OUT
) and a 4.7µH output inductor
Battery
OUT
R
R
IN
load requirement
REF
THM
.
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