MAX11080GUU+ Maxim Integrated Products, MAX11080GUU+ Datasheet - Page 6

• 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

12-Channel, High-Voltage
Battery-Pack Fault Monitors
6
29, 30, 32
37, 38
PIN
_______________________________________________________________________________________
24
25
26
27
28
31
34
35
36
CP-, CP+
TOPSEL
ALRM
ALRM
NAME
AGND
SHDN
GND
VDD
TST1,
TST2,
TST3
V
CD
AA
U
U
U
L
+3.3V Analog Supply Output. Bypass with a 1µF capacitor to AGND.
Active-Low Shutdown Input. This pin completely shuts down the MAX11080/MAX11081 internal regulators
and oscillators when the pin is less than 0.6V as referenced to AGND. The host controller should drive
SHDN for the first pack. See Figure 2 for the SHDN daisy-chained module connection.
Lower Port Alarm Output. This output is an alarm indicator for overvoltage, undervoltage, and setup faults.
The alarm signal is daisy-chained and driven from the highest module down to the lowest. The alarm output
is nominally a clocked “heartbeat” signal that provides a 4kHz clock when no alarm is present. The ALRM
can also be configured as level signal and set to “low” for no alarm and “high” for alarm state. See the
TOPSEL Function section for details. This signal swings between V
alarm state.
Programmable Delay Time. Connect a capacitor from this pin to AGND to set the hold time required for a
fault condition before the alarm is set. The capacitor should be a ceramic capacitor in the 15nF to 16.5µF
range.
Production Test Pins. Connect to AGND.
Input to Indicate Topmost Device in the Daisy-Chain. This pin should be connected to AGND for all devices
except the topmost. For the top device, this pin should be connected to V
Upper Port Alarm Input. This input receives the ALRM
swings between VDD
Level-Shifted Upper Port Ground. Upper port-supply return and supply input for the charge-pump supply.
This pin should be connected to the DCIN takeoff point on the battery stack as shown in the application
diagrams.
Level-Shifted Upper Port Supply. Upper port-supply output for the daisy-chained bus. This is a regulated
output voltage from the internal charge pump that is level-shifted above the DCIN pin voltage level. It
should be bypassed with a 1µF capacitor to GND
Charge-Pump Capacitor. Negative/positive input for the internal charge pump. Connect a 0.01µF high-
voltage capacitor between CP+ and CP-.
Analog Ground. Should be connected to the negative terminal of cell 1.
U
and GND
U
.
FUNCTION
U.
L
output signal from an upper neighboring module. It
Pin Description (continued)
AA
and AGND, and is active high in the
AA
.
L