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UCC39002DGKR Datasheet(PDF) 4 Page - Texas Instruments |
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UCC39002DGKR Datasheet(HTML) 4 Page - Texas Instruments |
4 / 28 page UCC29002 UCC29002/1 UCC39002 SLUS495H − SEPTEMBER 2001 − REVISED AUGUST 2007 4 www.ti.com electrical characteristics VDD = 12 V, 0°C < TA < 70°C for the UCC39002, −40°C < TA < 105°C for the UCC29002 and UCC29002/1, TA = TJ (unless otherwise noted) (continued) error amplifier PARAMETER TEST CONDITIONS MIN TYP MAX UNITS VOH High-level output voltage IOUT_EAO = 0 mA 3.50 3.65 3.80 V gM Transconductance IEAO = ± 50 µA 14 mS IOH High-level output current VLS − VCSO = 0.4 V,REAO = 2.2 kΩ 0.70 0.85 1.00 mA ADJ buffer PARAMETER TEST CONDITIONS MIN TYP MAX UNITS VIO Input offset voltage(2) VADJ = 1.5 V, VEAO = 0 V, −60 mV ISINK Sink current VADJ = 5.0 V, VEAO= 0 V 0 5 10 µA TA = 25_C V = 5.0 V, V = 2.0 V 3.60 3.95 4.30 ISINK Sink current 0 _C ≤ TA ≤ 70_C VADJ = 5.0 V, VEAO= 2.0 V LS = floating 3.45 3.95 4.45 mA ISINK Sink current −40 _C ≤ TA ≤ 105_C LS = floating 3.35 3.95 4.55 mA (1) Enables the load share bus at start-up. (2) Ensured by design. Not production tested. TERMINAL FUNCTIONS TERMINAL I/O DESCRIPTION NAME NO. I/O DESCRIPTION ADJ 5 O Adjust amplifier output. This is the buffered output of the error amplifier block to adjust output voltage of the power supply being controlled. This pin must always be connected to a voltage equal to or greater than VEAO + 1 V. CS− 1 I Current sense amplifier inverting input. CS+ 2 I Current sense amplifier non-inverting input. CSO 8 O Current sense amplifier output. EAO 6 O Output for load share error amplifier. (Transconductance error amplifier.) GND 4 − Ground. Reference ground and power ground for all device functions. Return the device to the low current sense− path of the converter. LS 7 I/O Load share bus. Output of the load share bus driver amplifier. VDD 3 I Power supply providing bias to the device. Bypass with a good quality, low ESL 0.1- µF to 1-µF, maximum, capacitor as close to the VDD pin and GND as possible. |
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