Datasheet

Analog Integrated Circuit Device Data
Freescale Semiconductor 3
34671
PIN CONNECTIONS
PIN CONNECTIONS
Figure 3. 34671 Pin Connections
Table 1. 34671 Pin Definitions
A functional description of each pin can be found in the Functional Pin Description section beginning on page 11.
Pin Number Pin Name Pin Function Formal Name Definition
1 VIN
Input Input supply
The supply input.
2 PPR
Output Power present
indicator
Indication of the input power status. Open drain output.
3 CHG
Output Charge indicator
Indication of the charge status. Open drain output.
4 EN
Input Enable
Enable logic input.
5 GND
Ground Ground
Ground.
6 FAST
Output Fast charge indicator
Indication of the fast charge status. Open drain output.
7 ISET
Output CC-mode current
setting and charge
current monitor
CC-mode current setting and monitoring pin.
8 BAT
Output Charger output
The charger output pin. Connect this pin to the Li-Ion battery.
EPAD EPAD
N/A Exposed pad
Exposed pad for thermal dissipation enhancement. Must be soldered on
the large ground plane on the PCB to increase the thermal dissipation.
The pad must be connected to GND electrically.
BAT
ISET
FAST
GND
VIN
PPR
CHG
EN
EPAD
1
2
3
4
8
7
6
5