STEVAL-ISB001V1 STMicroelectronics, STEVAL-ISB001V1 Datasheet - Page 12

• Manufacturer Part Number: STEVAL-ISB001V1
• Description: BATTERY CHARGER CELL PHONE
• Manufacturer: STMicroelectronics
• Type: Battery Managementr

Specifications of STEVAL-ISB001V1

• Main Purpose: Power Management, Battery Charger
• Embedded: No
• Utilized Ic / Part: STD1LNK60Z
• Primary Attributes: 1 Cell, 4.7V @ 400mA Out, CV/CC, 85 ~ 265VAC Input, 1.9W
• Secondary Attributes: >65% Efficient, 51 ~ 91mW Standby Input Power
• Input Voltage: 85 V to 265 V
• Output Voltage: 5 V
• Product: Power Management Modules
• Silicon Manufacturer: ST Micro
• Silicon Core Number: STD1LNK60Z-1
• Kit Application Type: Power Management - Battery
• Application Sub Type: Battery Charger
• Kit Contents: Board
• Rohs Compliant: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: STD1LNK60Z
• Other names: 497-5682

2 STD1LNK60Z-based RCC Control Circuit Components
2
2.1
2.2
2.2.1
2.2.2
2.2.3
12/26
STD1LNK60Z-based RCC Control Circuit
Components
MOSFET
The STD1LNK60Z (see
page 22
Electrostatic Discharge (ESD) protection capability, but also to allow for possible voltage
transients (that may occasionally be applied from gate to source) to be safely absorbed.
R3 Startup Resistor
Minimum Power Dissipation
The startup resistor R3 is limited by its power dissipation because of the high input bus voltage
that moves across it at all times. However, the lower the R3 value is, the faster the startup
speed is. Its power dissipation should be less than 1% of the converter’s maximum output
power. The minimum power dissipation value is expressed as
Maximum Power Dissipation
If R
Startup Resistors and the Power Margin
The power rating for an SMD resistor with a footprint of 0805 is 0.125W. Three resistors
(1.2M , 1.2M
resistor value and still have enough power margin.
3
is set to 4.2M , its max power dissipation is expressed as
) has built-in, back-to-back Zener diodes specifically designed to enhance not only the
R3
and 1.8M , respectively) are placed in series to produce the required startup
P
R3 ma x
----------------------------------------------- -
0.01 V
Appendix A: STD1LNK60Z-based RCC Circuit Schematics on
V
V
------------------------------ -
DC m ax
DC m ax
R
=
o
I
3
o max
V
--------------------------- -
DC max
2
2
R
3
1percent
=
-------------------------------------------
0.01
=
0.7
--------------------------
4.2
375
5
375
V
----------------------------
10
2
0.48
o
2
6
I
o max
=
=
0.0335W
4.1
AN2228 - APPLICATION NOTE
10
6