ADP5065

Data Sheet

Rev. D | Page 8 of 40

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

TOP VIEW

(BALL SIDE DOWN)

Not to Scale

1

A

B

C

D

E

2

3

4

BALL A1

CORNER

V_WEAK_SET

SDA

BAT_SNS

VIN1

THR

ISO_B1

ISO_S1

SW1

IIN_EXT

ISO_B2

ISO_S2

PGND1

SCL

TRK_EXT

AGND

SYS_ON_OK

VIN2

SW2

PGND2

CFILT

Figure 3. Pin Configuration

Table 6. Pin Function Descriptions

Pin

No.

Mnemonic

Type1

Description

D3, E3

SW1, SW2

I/O

DC-to-DC Converter Inductor Connection. These pins are high current outputs when in charging mode.

D1, E1

VIN1, VIN2

I/O

Power Connection to USB VBUS. These pins are high current inputs when in charging mode.

D4, E4

PGND1,

PGND2

G

Charger Power Ground. These pins are high current inputs when in charging mode.

C2

AGND

G

Analog Ground.

E2

CFILT

I/O

4.7 μF Filter Capacitor Connection. This pin is a high current input/output when in charging mode.

C3, C4

ISO_S1, ISO_S2

I/O

Charger Supply Side Input to Internal Isolation FET/Battery Current Regulation FET.

B3, B4

ISO_B1,

ISO_B2

I/O

Battery Supply Side Input to Internal Isolation FET/Battery Current Regulation FET.

A2

SCL

I

B1

SDA

I/O

A4

IIN_EXT

I

Set Input Current Limit. This pin sets the input current limit directly. When IIN_EXT = low or high-Z, the

input limit is 100 mA. When IIN_EXT = high, the input limit is 500 mA.

B2

TRK_EXT

I

Enable Trickle Charge Function. When TRK_EXT = low or high-Z, the trickle charge is enabled. When

TRK_EXT = high, the trickle charge is disabled.

A3

THR

I

Battery Pack Thermistor Connection. If not used, connect a dummy 10 kΩ resistor from THR to GND.

C1

BAT_SNS

I

Battery Voltage Sense Pin.

D2

SYS_ON_OK

O

Battery Okay Open-Drain Output Flag. Active low. This pin enables the system when the battery

A1

V_WEAK_SET

I/O

External Resistor Setting Pin for V_WEAK threshold. The use of this pin is optional. When not in use,

connect to GND.

1

I is input, O is output, I/O is input/output, and G is ground.