PS4160-4 Microchip Technology, PS4160-4 Datasheet - Page 2

• Manufacturer Part Number: PS4160-4
• Description: MODULE FUEL GAUGE LIION 4-CELL
• Manufacturer: Microchip Technology

Specifications of PS4160-4

• Module/board Type: Battery Manager Module
• Battery Type: Li-Ion
• For Use With/related Products: PS401
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification

PS4160
1.0
The PS4160 module is a complete smart battery
controller subsystem with safety based on the
Microchip PS401 battery manager with patented
Accuron™ technology. The module is designed to
operate in a battery pack consisting of three (3) or four
(4) series connected Lithium cells. The module
consists of three circuit sections – the Microchip PS401
battery manager IC, Mitsumi MM1414 based primary
safety circuit and a secondary safety circuit controlled
by the PS401 to provide backup to the MM1414.
1.1
Follow these directions to assemble a pack with the
PS4160 module.
• Use standard precautions when handling static
• Modules should be connected to battery cells in
• The connection sequence is critical to successful
Step 1: Configure the module for the number of series
cells according to the following chart:
Step 2: Configure the module for the following options.
Use Optional External Thermistor
The PS401 IC has an integrated temperature sensor. If
you would like to add an optional external thermistor,
remove R16.
Charge FET Control
The PS4160 is shipped with the Mitsumi 1414 IC
controlling both the charge and discharge FETs. If you
would like to enable PS401 control of the charge FET,
remove R25 and change the value of bit 2 of the
FLAGS1 parameter to ‘0’. Setting bit 2 of FLAGS1
disables the GPIOs.
DS40235B-page 2
sensitive devices.
the order indicated below to insure proper start-up
and operation. Wires should be attached to the
modules first and then connected to the battery
cells as instructed.
use of the PS401 family of CMOS ASICs. Pack
positive should always be connected first,
followed by the intermediate cell voltages from
highest to lowest, and finishing with the negative
end of the pack.
R27
R28
R30
GENERAL DESCRIPTION
Quick Start – Pack Assembly
Li Ion 3-cell
Removed
Installed
Installed
Li Ion 4-cell
Removed
Removed
Installed
GPIO<3:0> Operation:
The PS4160 is shipped with four LEDs for a SOC
display. These LEDs are connected to GPIO<3:0> pins
on the PS401 IC. The GPIO<3:0> pins can be used for
operation other than the LED SOC display by removing
the LED and monitoring the adjacent test point.
Step 3: Connect wires to module. Use large diameter
wire (18AWG-20 AWG) for current carrying lines from
VR and V1. All others are signal only lines (24 to 22
AWG).
Step 4: Connect V1 to the most positive point on the
battery cell stack.
Step 5: Connect cell voltage pickups:
4 series cells – negative end of topmost cell in stack to
V2, negative end of next cell to V3, and negative end of
third cell to V4.
3 series cells – negative end of topmost cell in stack to
V2, negative end of next cell to V3, no connection at
V4.
Step 6: Connect VR to the most negative point on the
battery cell stack.
Step 7: Connect external connector to B-Neg, T, C, D
and B+.
Step 8: The PS4160 is shipped with the secondary
safety circuit disabled to avoid damage to the fuse
during assembly. To enable the secondary safety
circuit, remove R23 and change the value of bit 2 of the
FLAGS1 parameter to ‘0’. Setting bit 2 of FLAGS1
disables the GPIOs configured for safety.
Step 9:
Microchip's PowerTool™ software and PowerCal™
board or PowerInfo™ board hardware.
The EEPROM parameters can be changed at will using
the utilities on the P4 EE page in the PowerTool
software. The OTP EPROM parameters can be
changed a limited number of times using utilities on the
P4 OTP page. To write to the OTP EPROM, an
additional voltage (V
This programming voltage can be obtained from the
PowerInfo board and applied to the PS4160 at
connection VP (small thru-hole) located on the small
edge of the board opposite the connector edge.
Step 10:
software and PowerCal board hardware. The pack is
now ready for use.
Calibrate the pack using the PowerTool
Program the assembled pack using
PP
) must be applied to the PS401.
 2003 Microchip Technology Inc.