AN2390 datasheet(27/42 Pages) STMICROELECTRONICS

Part #	AN2390

Description	A flexible universal battery charger

PDF	42 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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27 / 42 page

AN2390

How to use the evaluation board

27/42

How to use the evaluation board

3.1

Connecting the evaluation board

3.1.1

Jumper Connections

The following jumpers must be correctly configured for proper operation of the evaluation

board.

J1: This is a 3-pin connector for selecting between ICC clock and resonator clock.

Figure 18.

ICC connector

ICC clock is used only when we need to re-program the ST7 microcontroller. For normal

operation please short pin 1 and pin 2.

J2, J3: These jumpers are used to connect charger slots for different batteries as shown in

Figure 19.

J2 and J3 connections

EXT

OSC1

ICC_OSC

2-CELL NiMH

BATTERY CHARGER SLOT

UNIVERSAL BATTERY

CHARGER

RT1: NTC

CONNECTOR

J2 CONNECTOR FOR NiMH

V+

V-

J3 CONNECTOR FOR Li-ION

V+

TV-

1-CELL Li-ION

BATTERY CHARGER SLOT

Put NTC

close to slot

AN2390 Datasheet(PDF) 27 Page - STMicroelectronics