MAX1667EAP+T Maxim Integrated Products, MAX1667EAP+T Datasheet - Page 16

• Manufacturer Part Number: MAX1667EAP+T
• Description: IC SMART BATT CHGR LEVEL2 20SSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1667EAP+T

• Function: Charge Management
• Battery Type: All Battery Types
• Voltage - Supply: 7.5 V ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX1667 uses serial data to control its operation. The
serial interface complies with the SMBus specification (see
System Management Bus Specification, from the SBS
forum at www.sbs-Forum.org or from Intel Architecture
Labs: 800-253-3696). Charger functionality complies with
the Duracell/Intel Smart Charger Specification for a Level 2
charger.
Chemistry-Independent,
Level 2 Smart Battery Charger
Table 2a. Component Selection
16
_____________________Digital Section
High-Side MOSFET
Low-Side MOSFET
Output Capacitor
C4, C5, C9, C10
Schottky Diodes
DESIGNATION
Input Capacitor
Sense Resistor
C2, C7, C11
______________________________________________________________________________________
D1, D4, D5
Inductor
D2, D3
R2, R4
R5, R6
M1
M2
C1
C3
C6
C8
L1
R1
R3
MANUFACTURER
Coiltronics
Sprague
Sprague
Motorola
Fairchild
Motorola
Motorola
Coilcraft
Sumida
Central
Central
NIEC
Dale
AVX
AVX
IRC
IR
SMBus Interface
1N5819 equivalent
MTSF3N03HD
33µH, 1A I
MBRS130LT3
DS3316P-333
CDH74-330
UP1B-330
FDN359A
IRF7603
EC31
1A
SAT
Schottky diode, 50mA I
The MAX1667 uses the SMBus Read-Word and Write-
Word protocols to communicate with the battery it is
charging, as well as with any host system that monitors
the battery to charger communications. The MAX1667
acts only as a slave device and never initiates communi-
cation on the bus; it receives commands and responds
to queries for status information. Figures 8a and 8b show
the SMBus Write-Word and Read-Word protocols.
Each communication with the MAX1667 begins with the
master issuing a START condition, which is a high-to-
low transition on SDA while SCL is high (Figure 1).
2 x 22µF, 35V, low ESR
WSL-2512/0.04W/±1%
TPSE686M020R0150
TPSE226M035R0200
68µF, 20V, low ESR
594D686X0025R2T
594D226X0035R2T
2N7002 equivalent
33µH, 3A I
1N5821 equivalent
10kΩ ±5%, 1/16W
10kΩ ±1%, 1/16W
LR251201R040F
33Ω ±5%, 1/16W
40mΩ ±1%, 1W
MMBF1170LT1
MMDF3N03HD
CDRH127-330
MBRS340T3
NSQ03A04
CMSH3-40
UP3B-330
FDS4410
IRF7201
0.1µF
47nF
22nF
1µF
3A
SAT
DC
, 30V, CMPSH-3
, 30V
33µH, 4A I
1N5821 equivalent
CDRH127-270
MBRS340T3
CMSH5-40
CMSH5-40
FDS6680
IRF7805
4A
SAT
, 30V