ZHCU734 设计指南 | 德州仪器 TI.com.cn

ZHCU734A January 2017 – March 2020

修订历史记录

2.2 Key System Specifications

Table 1. TIDM-1001 Performance Specifications

PARAMETER	TEST CONDITIONS	MINIMUM	TYP	MAXIMUM	UNITS
INPUT CHARACTERISTICS
Voltage range	—	370	390	410	V_DC
Input current	Vin = 370 V_DC, full load = 42.5 A	—	—	1.55	A
Input current	Vin = 390 V_DC, full load = 42.5 A	—	—	1.5	A
Input current	Vin = 410 V_DC, full load = 42.5 A	—	—	1.5	A
Phase overcurrent threshold⁽¹⁾	—	—	3.2	—	A
OUTPUT CHARACTERISTICS
Output voltage, V_out	No load to full load	—	12	—	V_DC
Output overvoltage threshold	—	—	13.5	—	V_DC
Load regulation	V_in= 410 V_DC, I_out =2.5A to 42.5 A	—	50	—	mV
Line regulation	V_in = 370 V_DC to 410 V_DC, I_out = 10 A	—	< 5	—	mV
Output load current, I_out⁽²⁾	V_in = 370 V_DC to 410 V_DC	—	—	42.5	A
Output over-current threshold⁽¹⁾	—	—	55	—	A
Output power⁽²⁾	—	—	—	500	W
Output power per phase	—	—	—	250	W
SYSTEM FEATURES
Peak efficiency	V_in = 390 V_DC, I_out= 10 A	—	94.5%	—	—
Efficiency	V_in = 370 V_DC to 410 V_DC, 4.2 A <I_out < 42.5 A	—	> 90%	—	—
Full-load efficiency	V_in = 370 V_DC, I_out = 42.5 A	—	92%	—	—
Resonant frequency	—	—	250	—	kHz
Switching frequency	—	200	—	350	kHz

(1) These default overcurrent limits are programmable and may be adjusted to allow high-load operation under noisy test conditions or to limit these currents to lower levels.

(2) Note that the resonant tank inductors are the hottest components on the board. Use an external air cooling fan (CFM rating > 50) directed at the board when operating with loads (I_out) of 30 A or higher.