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Product # BQ60120HEA30 Phone 1-888-567-9596 Doc.# 005-2BH612M Rev. B 09/02/05 Page 4 Input: Input: Output: Output: Current: Current: PPackage: ackage: 35-75 V 35-75 V 12 V 12 V 30 A 30 A Half-brick Half-brick T Technical S echnical Specification pecification Parameter Min. Typ. Max. Units Notes & Conditions ABSOLUTE MAXIMUM RATINGS Input Voltage Non-Operating 100 V Continuous Operating 80 V Continuous Operating Transient Protection 100 V 100ms transient, square wave Isolation Voltage (input to output) 2250 V Basic insulation level, Pollution degree 2 Operating Temperature -40 100 °C See Figures 7 - 10 for derating Storage Temperature -55 125 °C INPUT CHARACTERISTICS Operating Input Voltage Range 35 48 75 V Input Under-Voltage Lockout Turn-On Voltage Threshold 31.5 33.5 34.4 V Turn-Off Voltage Threshold 29.5 30.5 32.4 V Lockout Voltage Hysteresis 3.0 V Maximum Input Current 11.6 A 100% Load, 35 Vin, trimmed up 5% No-Load Input Current 140 180 mA Disabled Input Current 30 50 mA Input Reflected Ripple Current 20 40 mA Input Terminal Ripple Current 130 mA Recommended Input Fuse 20 A Fast blow external fuse recommended Input Filter Component Values (C1\L\C2) 0\1.0\5.0 µF\µH\µF Internal values; see Figure D Output Filter Component Values (Lout\Cout) 100\90 nH\µF Internal values; see Figure D Recommended External Input Capacitance 100 100 µF Typical ESR 0.2 Ω; see Figure 15 Recommended External Input Capacitor ESR 1 0.04 0.2 1.5 Ω 100kHz, -40 °C to 100°C OUTPUT CHARACTERISTICS Output Voltage Set Point 11.88 12.00 12.12 V Output Voltage Regulation Over Line +0.05 \ 6 +0.1 \ 12 %\mV Over Load +0.1 \ 12 +0.2 \ 24 %\mV Over Temperature +45 +90 mV Total Output Voltage Range 11.75 12.33 V Over sample, line, load, temperature & life Output Voltage Ripple and Noise Peak-to-Peak 60 120 mV RMS 20 40 mV Operating Output Current Range 0 30 A Subject to thermal derating; Figures 7 - 10 Output DC Current-Limit Inception 34 37 40 A Output Voltage 10% Low; Figure 19 Back-Drive Current Limit while Enabled 0.8 1.8 3.2 A Negative current drawn from output Back-Drive Current Limit while Disabled 0.3 0.6 A Negative current drawn from output Maximum Output Capacitance >10,000 µF 12Vout at 30A resistive load Start-up Output Voltage Overshoot (with max. cap.) 0 % 10,000µF, Iout=30A resistive load Recommended External Output Capacitance 44 µF Local ceramic DYNAMIC CHARACTERISTICS Input Voltage Ripple Rejection 80 dB 120 Hz; Figure 22 Output Voltage during Load Current Transient For a Step Change in Output Current (0.1A/µs) 300 mV 50% to 75% to 50% Iout max; Figure 13 For a Step Change in Output Current (5A/µs) 500 mV 50% to 75% to 50% Iout max; Figure 14 Settling Time 100 µs To within 1% Vout nom Turn-On Transient Turn-On Time 8 14 20 ms Start-Up Inhibit Period 2 3 4 ms EFFICIENCY 100% Load 95 % Figures 1 - 6 50% Load 95 % Figures 1 - 6 TEMPERATURE LIMITS FOR POWER DERATING CURVES Semiconductor Junction Temperature 125 °C Package rated to 150°C Board Temperature 125 °C UL rated max operating temp 130°C Transformer Temperature 125 °C See Figures 7 - 10 for derating curves Maximum Baseplate Temperature Limit 100 °C Applies to BQ60120HEB30 only ISOLATION CHARACTERISTICS Isolation Voltage (dielectric strength) 2250 V Isolation Resistance 30 M Ω Isolation Capacitance 1000 pF 1. Electrolytic capacitor ESR tends to increase dramatically at low temperature. BQ60120HEA30 ELECTRICAL CHARACTERISTICS TA=25°C, airflow rate=300 LFM, Vin=48Vdc unless otherwise noted; full operating temperature range is -40°C to +100°C ambient tem- perature with appropriate power derating. Specifications subject to change without notice. |
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