MAX8671XETL+ Maxim Integrated Products, MAX8671XETL+ Datasheet - Page 36

• Manufacturer Part Number: MAX8671XETL+
• Description: IC PMIC W/CHARGER 40-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8671XETL+

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 4.1 V ~ 6.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 40-WFQFN Exposed Pad
• Mounting Style: SMD/SMT
• Input Voltage: 2.6 V to 6.6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Output Current: 0.5 A
• Output Voltage: 0.6 V to 5 V
• Supply Current: 0.285 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figures 11, 12, and 13 show how the five MAX8671X
regulators are enabled and disabled. With a valid SYS
voltage and die temperature, asserting EN high
enables REG1–REG4. Pulling EN low disables
PMIC with Integrated Charger and
Smart Power Selector for Handheld Devices
Figure 11. Enable/Disable Logic
36
SYS
PV4
PV5
USB
DC
EN
______________________________________________________________________________________
2.5V FALLING
100mV HYST
1.6V RISING
100mV HYST
1.6V RISING
100mV HYST
4.0V RISING
500mV HYST
6.9V RISING
400mV HYST
4.0V RISING
500mV HYST
6.9V RISING
400mV HYST
Enable/Disable (EN) and Sequencing
64 CYCLE
(32ms)
DELAY
2MHz
OSC
BIAS
REF
&
USBOVLO
USBUVLO
DCOVLO
DCUVLO
SYSOK
PV5OK
PV4OK
SYSOK
DT165
DIE TEMP
+165°C
REGON
DCPOK
USBPOK
REG1–REG5. REG5 is intended to power the system
USB transceiver circuitry, which is only active when
USB power is available. Therefore, a valid source must
be on either the USB or DC input for REG5 to enable.
DT165
REG3OK
REG1OK
REG2OK
REG4OK
PV5OK
REGON
REG3OK
REG1OK
REG2OK
PV4OK
REGON
REG3OK
REGON
REGON
MAX8671X
EN
EN
EN
EN
SOFT-START
SOFT-START
EN
SOFT-START
SOFT-START
SOFT-START
REG2
REG4
REG3
REG1
REG5
OK
OK
OK
OK
OK
REG5OK
REG3OK
REG1OK
REG2OK
REG4OK