MAX8600A View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX8600A
Maxim Integrated
MAX8600A Datasheet PDF : 12 Pages
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Single-Input 1-Cell Li+ Charger with
OVP Protection and Programmable Charge Timer
PIN
11
9, 12, 13
14
—
Pin Description (continued)
NAME
CHG
DC
FLT
EP
FUNCTION
Charging-Status Output. CHG pulls low when the battery is above 2.5V and being charged with a current
greater than 6% of the current programmed with RSETI. CHG is high impedance when the charger is in
prequal, top-off, or disabled.
DC Input Source. Connect directly to a 4.5V to 6.0V charging source. Bypass DC to GND with 1µF or
greater. DC is overvoltage protected to 14V. Ensure that all DC pins are connected together.
Fault Status Output. FLT pin pulls low when the fast-charge or prequal timers expire and the battery
voltage is not above the required threshold. Clear the fault by raising EN or dropping DC to GND (remove
input power).
Exposed Pad. Connect EP to the GND plane for optimum thermal dissipation.
SUSPEND PQ
POK = LOW, CHG = HIGH,
FLT = HIGH, IBAT = 0mA,
TIMER HALTED
OFF
POK = MONITORS INPUT
CHG = HIGH, FLT = HIGH
IBAT = 0mA
VDC INVALID OR
VDC < VBAT OR
EN HIGH
ANY STATE
EN LOW AND
POK GOOD
SET TIMER = 0s
THM OK
THM NOT OK
PREQUAL
TIMER > 34.8min
POK = LOW, CHG = HIGH, FLT = HIGH
IBAT = 150/RSETI
FAULT
CHG = HIGH
FLT = LOW
VBAT < 2.37V
SET TIMER = 0s
VBAT > 2.5V
SET TIMER = 0s
TIMER > 334min
SUSPEND FC
POK = LOW, CHG = HIGH,
FLT = HIGH, IBAT = 0mA,
TIMER HALTED
THM OK
THM NOT OK
FAST-CHARGE
POK = LOW, CHG = LOW,
FLT = HIGH, VBAT ≤ 4.2V,
IBAT ≤ 1500/RSETI
IBAT < 150/RSETI
AND VBAT < 4.2V
SET TIMER = 0s
IBAT < 90/RSETI
AND VBAT ≥ 4.2V
SET TIMER = 0s
NOTE: ALL TIMER VALUES
ARE FOR CCT = 0.068μF
TOP-OFF
POK = LOW, CHG = HIGH,
FLT = HIGH, VBAT ≤ 4.2V
TIMER > 69.6min
VBAT < 4.1V
SET TIMER = 0s
DONE
POK = LOW, CHG = HIGH,
FLT = HIGH, IBAT = 0mA
Figure 1. Charger State Diagram
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