HP / Agilent 66309D DC Source 0-15V 0-3A

The HP/Agilent 66309D is a dual-output DC power supply purpose-built for mobile communications and battery device testing. Each of its two independent outputs delivers 0–15 V at 0–3 A (45 W max per output, with 5 A peak capability for up to 7 ms). A built-in digital voltmeter provides direct measurement of external voltages from −4.5 Vdc to +25 Vdc, eliminating the need for external instrumentation.

Technical Specifications Output ratings span 0–15 V and 0–3 A per channel with 45 W maximum power per output. Peak current reaches 5 A for transient testing up to 7 ms. Programming accuracy is 0.05% + 10 mV for voltage and 0.05% + 1.33 mA for current (at 25°C ±5°C). DC readback accuracy for voltage measures 0.03% + 5 mV. Current readback ranges from 0.2% + 0.5 mA (positive range) to 0.1% + 2.5 µA in the ±20 mA range. Voltage noise and ripple stay exceptionally low: 1.0 mV RMS and 6 mV peak-to-peak. Current ripple is 2 mA RMS. Transient response time is less than 35 µs with a 70 mV voltage drop. Output programming settles in under 200 µs rise/fall time, with full settling to 1 LSB within 6 ms (2 ms in fast mode). The integrated DVM achieves 0.04% + 5 mV DC accuracy and 1% + 5 mV AC+DC RMS accuracy (60 Hz to 10 kHz). Common mode measurement range extends to −4.5 Vdc to +25 Vdc.

Key Features

Simultaneous independent control of main battery and charger circuitry testing

Excellent voltage transient response prevents test interruptions from wiring voltage drops

Open-sense wire connection detection for cellular telephone applications

Adaptive fan speed for quiet operation at reduced power levels

Built-in digital voltmeter eliminates external measurement equipment

GPIB and remote interfaces for automated test systems

Typical Applications Mobile device battery characterization, wireless charging circuit validation, cellular telephone power integrity testing, and simultaneous battery/charger circuit evaluation.

Compatibility & Integration GPIB connectivity enables integration into automated test benches. Optional 521 adds solid-state output disconnect relays. Rackmount kits available: Option 1CM (standard) and Option AXS (side-by-side). Weight: 9.7 kg. Operating altitude to 2000 m, humidity to 95%.