MAX11080GUU+ Maxim Integrated Products, MAX11080GUU+ Datasheet - Page 17

• Manufacturer Part Number: MAX11080GUU+
• Description: IC LI/BATTERY MANAGEMENT 38TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX11080GUU+

• Function: Battery Monitor
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 6 V ~ 72 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 38-TSSOP (0.173", 4.40mm Width)
• Product: Charge Management
• Operating Supply Voltage: 6 V to 72 V
• Supply Current: 0.05 uA
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Charge Safety Timers: No
• Mounting Style: SMD/SMT
• Temperature Monitoring: No
• Uvlo Start Threshold: 1.6 V
• Uvlo Stop Threshold: 2.8 V
• No. Of Batteries: 12
• Supply Voltage Range: 6V To 72V
• Battery Ic Case Style: TSSOP
• No. Of Pins: 38
• Operating Temperature Range: -40°C To +105°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 12. Linear Regulator Power-Up Sequence
are not guaranteed until a minimum of 6.0V is applied to
the DCIN pin.
The linear regulator also incorporates a thermal shutdown
feature. If the MAX11080/MAX11081 die temperature
rises above +145°C, the device shuts down. After a ther-
mal shutdown, the die temperature must cool 15°C below
the shutdown temperature before the device restarts.
Figure 12 shows the linear regulator power-up sequence
and Figure 13 shows the low DCIN POR event.
A surge voltage is produced by the electric motor
during regenerative braking conditions. The
MAX11080/MAX11081 are designed to tolerate an
absolute maximum of 80V under this condition. The
MAX11080/MAX11081 should be protected against high-
er voltages with an external voltage suppressor such as
0.2ms TYP
1.8ms TYP
DCIN and GND
REGULATOR ENABLED
VOLTAGE APPLIED
RESET ASSERTED
INTERNAL RESET
VAA POR RESET
CHARGE-PUMP
V
INTERNAL POR
REGULATOR IN
CHECK SHDN
DEASSERTED
REGULATION
AA
ASSERTED
ASSERTED
CHECK V
TO DCIN
POR RESET
SHDN DEASSERTED
V
AA
AA
SHDN ASSERTED
V
______________________________________________________________________________________
> 3.0V
AA
< 3.0V
U
Supply Connections
1.1ms TYP
0.7ms TYP
1.0ms TYP
16kHz OSCILLATOR
INTERNAL RESET
CHARGE-PUMP
CHECK (VDD
CHARGE-PUMP
NEXT ACTIVE POR
ASSERTED UNTIL
DEASSERTED
VDD
REGULATION
FAULT: ALRML
ENABLED
ENABLED
GND
U
WITHIN
U
(VDD
)
(VDD
U
-
U
Battery-Pack Fault Monitors
U
- GND
- GND
U
) > 2.6V
U
) < 2.6V
INPUTS LATCHED
OVSEL/UVSEL
12-Channel, High-Voltage
NO
CONNECT GROUND AS
DISCONNECT GROUND
START OVERVOLTAGE
RESET DEASSERTED
COMPARATOR TEST
COMPARATOR TEST
OV COMPARATORS
AS OV THRESHOLD
Figure 13. Low DCIN POR Event
OV THRESHOLD
OUTPUT HIGH?
OVERVOLTAGE
INTERNAL POR
ALARM STATE
DISABLED
DONE
ALL
YES
1.0ms TYP
V
V
AND ALARM PULSE
AA
AA
MAX11080/MAX11081
CELL SHORT-CIRCUIT
CHARGE-PUMP,
DIGITAL LOGIC,
START CELL SHORT-
FULLY FUNCTIONAL
POR INACTIVE
FALLING DCIN
OSCILLATOR,
POR ACTIVE
COMPARATOR [N]
DETECTS SHORT?
CHECK V
FOR EACH CELL
AND INTERNAL
AND INTERNAL
SHORT-CIRCUIT
DISABLED
NEXT INPUT N
VOLTAGE
CIRCUIT TEST
TEST DONE
INPUT N
V
NO
AA
AA
< 2.8V
V
AA
> 2.8V
YES
NUMBER OF CELLS
COMPARATOR
INPUT [N] UV
NEXT INPUT N
DISABLED
DETECTED
17