PS401-I/SS Microchip Technology, PS401-I/SS Datasheet - Page 4

• Manufacturer Part Number: PS401-I/SS
• Description: IC FUEL GAUGE BATTERY MGR 28SSOP
• Manufacturer: Microchip Technology

Specifications of PS401-I/SS

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PS401
TABLE 1-1:
DS40238B-page 4
Pin
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
11
1
2
3
4
5
6
7
8
9
SMB-CLK
SMB-DTA
GPIO(4)
GPIO(5)
GPIO(6)
GPIO(7)
GPIO(0)
GPIO(1)
GPIO(2)
GPIO(3)
RSHN
Name
RSHP
V
VC(4)
VC(3)
VC(2)
VC(1)
RSV4
RSV3
RSV2
RSV1
R
PS401 PIN DESCRIPTION
V
V
V
V
V
V
REFT
DDD
DDA
NTC
OSC
SSD
SSA
PP
(Input) Filter capacitor input for digital supply voltage.
(Bidirectional) Programmable General Purpose Digital Input/Output pin (4).
(Bidirectional) Programmable General Purpose Digital Input/Output pin (5).
(Bidirectional) Programmable General Purpose Digital Input/Output pin (6).
(Bidirectional) Programmable General Purpose Digital Input/Output pin (7).
SMBus Clock pin connection.
SMBus Data pin connection.
(Input) Cell voltage input for the fourth highest voltage cell in a series string.
(Input) Cell voltage input for the third highest voltage cell in a series string.
(Input) Cell voltage input for the second highest voltage cell in a series string.
(Input) Cell voltage input for the first or highest voltage cell in a series string.
(Input) Analog supply voltage input.
Analog ground reference point.
(Input) Current measurement A/D input from positive side of the current sense resistor.
(Input) Current measurement A/D input from negative side of the current sense
resistor.
(Input) A/D input for use with an external temperature circuit. This is the mid-point
connection of a voltage divider where the upper leg is a thermistor (103ETB-type) and
the lower leg is a 3.65 kOhm resistor. This input should not go above 150 mV.
(Output) Reference voltage output for use with temperature measuring A/D circuit.
This 150 mV output is the top leg of the voltage divider and connects to an external
thermistor.
External bias resistor.
Reserved – Must be connected to ground.
Reserved – Must be connected to ground.
Reserved – Must be connected to V
(Input) Supply voltage input for OTP programming voltage.
Reserved – Must be connected to V
(Bidirectional) Programmable General Purpose Digital Input/Output pin (0).
(Bidirectional) Programmable General Purpose Digital Input/Output pin (1).
(Bidirectional) Programmable General Purpose Digital Input/Output pin (2).
(Bidirectional) Programmable General Purpose Digital Input/Output pin (3).
Digital ground reference point.
DDD
DDD
Description
.
.
 2003 Microchip Technology Inc.