MAX1645-MAX1645A Maxim, MAX1645-MAX1645A Datasheet - Page 10

• Manufacturer Part Number: MAX1645-MAX1645A
• Description: Advanced Chemistry-Independent / Level 2 Battery Chargers with Input Current Limiting
• Manufacturer: Maxim

Advanced Chemistry-Independent, Level 2
Battery Chargers with Input Current Limiting
10
PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
______________________________________________________________________________________
NAME
PGND
DLOV
CSSN
DCIN
BATT
CSSP
CSIN
GND
CSIP
LDO
CCS
CCV
DAC
THM
SDA
DLO
CLS
V
SCL
PDL
PDS
CVS
REF
CCI
DHI
BST
INT
LX
DD
DC Supply Voltage Input
5.4V Linear-Regulator Voltage Output. Bypass with a 1µF capacitor to GND.
Source Current Limit Input
4.096V Reference Voltage Output
Charging Source Compensation Capacitor Connection. Connect a 0.01µF capacitor from CCS to GND.
Battery Current-Loop Compensation Capacitor Connection. Connect a 0.01µF capacitor from CCI to GND.
Battery Voltage-Loop Compensation Capacitor Connection. Connect a 10kΩ resistor in series with a 0.01µF
capacitor to GND.
Ground
Battery Voltage Output
DAC Voltage Output
Logic Circuitry Supply Voltage Input (2.8V to 5.65V)
Thermistor Voltage Input
SMB Clock Input
SMB Data Input/Output. Open-drain output. Needs external pull-up.
Interrupt Output. Open-drain output. Needs external pull-up.
PMOS Load Switch Driver Output
Battery Current-Sense Negative Input
Battery Current-Sense Positive Input
Power Ground
Low-Side NMOS Driver Output
Low-Side NMOS Driver Supply Voltage. Bypass with 0.1µF capacitor to GND.
Inductor Voltage Sense Input
High-Side NMOS Driver Output
High-Side Driver Bootstrap Voltage Input. Bypass with 0.1µF capacitor to LX.
Charging Source Current-Sense Negative Input
Charging Source Current-Sense Positive Input
Charging Source PMOS Switch Driver Output
Charging Source Voltage Input
FUNCTION
Pin Description