ADP3405 Analog Devices, ADP3405 Datasheet - Page 5

• Manufacturer Part Number: ADP3405
• Description: GSM Power Management System
• Manufacturer: Analog Devices

ABSOLUTE MAXIMUM RATINGS
Voltage on Any Pin with Respect
Voltage on Any Pin May Not Exceed VBAT,
Storage Temperature Range . . . . . . . . . . . . –65
Operating Temperature Range . . . . . . . . . . . –20
Maximum Junction Temperature . . . . . . . . . . . . . . . . . 125
θ
θ
Lead Temperature Range (Soldering, 60 sec) . . . . . . . . 300
Model
ADP3405ARU –20
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the ADP3405 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
This is a stress rating only, operation beyond these limits can cause the device to
be permanently damaged.
JA
JA
to Any GND Pin . . . . . . . . . . . . . . . . . . . . . . –0.3 V, +10 V
with the Following Exceptions: VRTC, VSIM,
CAP+, PWRONIN, I/O, CLK, RST
, Thermal Impedance (TSSOP-28) . . 4-Layer Board 68
, Thermal Impedance (TSSOP-28) . . 6-Layer Board 62
PWRONKEY
ANALOGON
PWRONIN
Temperature
Range
RESCAP
REFOUT
CHRON
VTCXO
RESET
ROWX
PIN CONFIGURATION
DGND
AGND
VCCA
VBAT
°
VCC
C to +85
ORDERING GUIDE
10
11
12
13
14
1
2
3
4
5
6
7
8
9
(Not To Scale)
ADP3405
TSSOP-28
°
C 28-Lead TSSOP
Package
Description
28
27
26
25
24
23
22
21
20
19
18
17
16
15
RST
VSIM
CLK
SIMON
SIMPROG
I/O
SIMGND
CLKIN
RESETIN
DATAIO
SIMBAT
CAP–
VRTC
CAP+
°
C to +150
°
C to +85
Package
Option
RU-28
°
°
C/W
C/W
°
°
°
°
C
C
C
C
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Mnemonic
RESCAP
DGND
VTCXO
RESET
REFOUT
VCCA
AGND
VBAT
VCC
PWRONKEY
ANALOGON
PWRONIN
ROWX
CHRON
VRTC
CAP–
SIMBAT
DATAIO
RESETIN
CLKIN
SIMGND
I/O
RST
SIMPROG
SIMON
CLK
VSIM
CAP+
PIN FUNCTION DESCRIPTIONS
Function
Reset Delay Timing Cap
Digital Ground
Crystal Oscillator Low Dropout
Regulator
Main Reset
Reference Output
Analog Low Dropout Regulator
Analog Ground
Battery Input Voltage
Digital Low Dropout Regulator
Power-On/-Off Key
VTCXO Enable
Power-On/-Off Signal from
Microprocessor
Microprocessor Keyboard Output
Charger On/Off Input
Real-Time Clock Supply/Coin
Cell Battery Charger
Negative Side of Boost Capacitor
Battery Input for the SIM
Charge Pump
Non-Level-Shifted Bidirectional
Data I/O
Non-Level-Shifted SIM Reset
Non-Level-Shifted Clock
Charge Pump Ground
Level-Shifted Bidirectional SIM
Data Input/Output
Level-Shifted SIM Reset
VSIM Programming:
Low = 3 V, High = 5 V
VSIM Enable
Level-Shifted SIM Clock
SIM Supply
Positive Side of Boost Capacitor
WARNING!
ESD SENSITIVE DEVICE
ADP3405