MAX8671XETL+ Maxim Integrated Products, MAX8671XETL+ Datasheet - Page 20

• 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

PMIC with Integrated Charger and
Smart Power Selector for Handheld Devices
20
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PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
1
2
3
4
5
6
7
8
9
BVSET
NAME
AGND
USUS
OUT5
OUT4
PWM
CEN
DOK
USB
PG2
FB5
FB2
FB4
FB1
PV5
LX2
PV2
PV4
PV1
DC
BP
EN
USB Suspend Digital Input. As shown in Table 1, driving USUS high suspends the DC or USB inputs
if they are configured as a USB power input.
DC Power Input. DC is capable of delivering 1A to SYS. DC supports both AC adaptors and USB
inputs. As shown in Table 1, the DC current limit is controlled by PEN1, PEN2, USUS, and R
USB Power Input. USB is capable of delivering 0.5A to SYS. As shown in Table 1, the USB current
limit is controlled by PEN1, PEN2, and USUS.
Feedback Input for REG5. Connect FB5 to the center of a resistor voltage-divider from OUT5 to
AGND to set the REG5 output voltage from 0.6V to V
Power Input for REG5. Connect PV5 to SYS, or a supply between 1.7V and V
power ground with a 1µF ceramic capacitor.
Linear Regulator Power Output. OUT5 is internally pulled to AGND by 1kΩ in shutdown.
Power Ground for the REG2 Step-Down Regulator
Inductor Switching Node for REG2. LX2 is internally pulled to PG2 by 1kΩ in shutdown.
Power Input for the REG2 Step-Down Regulator. Connect PV2 to SYS. Bypass PV2 to PG2 with a
4.7µF ceramic capacitor.
Active-Low Charger Enable Input. Pull CEN low to enable the charger, or drive CEN high to disable
charging. The battery charger is also disabled when USUS is high.
Feedback Input for REG2. Connect FB2 to the center of a resistor voltage-divider from the REG2
output capacitors to AGND to set the output voltage from 1V to V
Active-Low, Open-Drain DC Power-OK Output. DOK is low when V
range.
Feedback Input for REG4. Connect FB4 to the center of a resistor voltage-divider from the REG4
output capacitors to AGND to set the output voltage from 0.6V to V
Reference Noise Bypass. Bypass BP with a low-leakage 0.01µF ceramic capacitor for reduced noise
on the LDO outputs.
Linear Regulator Power Output. OUT4 is internally pulled to AGND in shutdown.
Power Input for REG4. Connect PV4 to SYS, or a supply between 1.7V and V
power ground with a 1µF ceramic capacitor.
Battery Regulation Voltage Set Node. Drive BVSET low to set the regulation voltage to 4.1V. Connect
BVSET to VL or leave unconnected to set the regulation voltage to 4.2V. Connect BVSET to AGND
through a 50kΩ resistor to set the regulation voltage to 4.350V.
Ground. AGND is the low-noise ground connection for the internal circuitry.
Feedback Input for REG1. Connect FB1 to the center of a resistor voltage-divider from the REG1
output capacitors to AGND to set the output voltage from 1V to V
Regulator Enable Input. Drive EN high to enable all regulator outputs. The sequencing is shown in
Figure 11. Drive EN low to disable the regulators.
Forced-PWM Input. Connect PWM high for forced-PWM operation on REG1, REG2, and REG3.
Connect PWM low for auto PWM operation. Do not change PWM on-the-fly. See the PWM section
for more information.
Power Input for the REG1 Step-Down Regulator. Connect PV1 to SYS. Bypass PV1 to PG1 with a
4.7µF ceramic capacitor.
FUNCTION
PV5
.
SYS
SYS
DC
PV4
.
.
is within its valid operating
.
Pin Description
SYS
SYS
. Bypass PV5 to
. Bypass PV4 to
DISET
.