Li+ battery charger integrates GSM test mode

maximmax8922l1Sunnyvale, Calif. — Maxim Integrated Products has introduced the MAX8922L, a 30-V, single-input lithium-ion (Li+) charger integrated with a 2.3-A GSM test mode that facilitates production-line calibration and testing of devices with a micro-USB connector. Using this charger, designers can quickly calibrate their GSM phones without having to install a battery, said Maxim. Applications include GSM, EDGE, UMTS, and CDMA cell phones.

The MAX8922L’s input is over-voltage protected to 30 V, eliminating the need for an external over-voltage-protection IC. The device includes a 4.94-V LDO output to safely power the low-voltage Vbus input. The fast-charge current and top-off current thresholds can be configured using an external resistor for design flexibility.

The MAX8922L also allows the fast-charge current and GSM test mode to be programmed through a single-wire interface. The charger status and valid input power are indicated by two open-drain outputs.

The MAX8922L is housed in a 3 x 2 mm, 10-pin TDFN package.

Pricing: Starts at $1.60 (1000-up, FOB USA).
Datasheet: MAX8922L.