(China (Mainland))
Product Summary
The AM79462JC Valid Combinations list configurations planned to be supported in volume for the AM79462JC. The Operating Ranges define those limits over which the functionality of the AM79462JC is guaranteed by production testing. Functionality of the AM79462JC from 0°C to +70°C is guaranteed by production testing. Performance from -40°C to +85°C is guaranteed by characterization and periodic sampling of production units.
Parametrics
AM79462JC absolute maximum ratings: (1) Storage temperature: -55°C to +150°C; (2) With respect to AGND/DGND VCC: -0.4V to +7.0V, VEE: -0.4V to +7.0V; (3) VBAT: Continuous: +0.4V to -70V, 10ms: +0.4V to -75V, BGND:+3V to -3V; (4) A(TIP) or B(RING) with respect to BGND, During transient: BGND to +1-V, During steady state: BGND to +7V; (5) Current through relay drivers: 60mA; (6) DA and DB inputs Voltage on ring-trip inputs: VBAT to 0V, Current into ring-trip inputs: ±10mA; (7) C3-C1, E0, E1 to AGND/DGND: -4.0V to Vcc +0.4V; (8) Maximum power dissipation, TA=85°C, No heat sink (See note): In 32-pin PLCC package: 1.4W, Thermal data: θJA, In 32-pin PLCC package: 43°C/W.
Features
AM79462JC features: (1) Programmable constant-current feed; (2) Current gain = 200; (3) Programmable loop-detect threshold; (4) Low power Standby state; (5) Ground-key detector; (6) Tip Open state for ground-start lines; (7) -19 V to -56.5 V battery operation; (8) Ideal for low cost PABX and key telephone systems.
Diagrams
