Rainbow Electronics MAX8730 - Manual (Page 17)

MAX8730
Low-Cost Battery Charger
______________________________________________________________________________________ 17
N
MAX8730
A = 20V/V
CSSN
CSSP
CURRENT-SENSE
AMPLIFIER
CURRENT-SENSE
AMPLIFIER
GM =
2.8
µA/mV
IINP
INPON
REF
SYSTEM OVER-
CURRENT
CLS
GMS
CCS
A = 15V/V
CSIN
CSIP
CCI
GMI
ICTL
65mV
CHARGER
SHUTDOWN
CELL-
SELECT
LOGIC
BATT
MODE
REF
SELECTOR
(DEFAULT = 4.2V)
VCTL
GMV
CCV
LOWEST
VOLTAGE
CLAMP
222mA
LVC
6.56A
VCTL + 40mV DHI
HIGH-
SIDE
DRIVER
SRC
DHIV
OVP
IMIN
IMAX
CCMP
DC-DC
CONVERTER
5.4V
CHARGER
REGULATOR
SRC
LDO
REFERENCE
4.2V
REF CHARGER
BIAS
LOGIC
BATT
ADAPTER
DETECT
REFERENCE
3.3V
REFON
SRC
SWREF
REF/2
GND ACIN ACOK
CSI
-5V
REGULATOR
SRC - 10V
GND REL_EN
SRC
ASNS
PDS
PDL
LOGIC
PDS
BATT
PDL
SRC
RELTH
CSSP
6 µA
REL_EN N
Figure 2. Functional Diagram