参数资料
型号: TEA1752LT/N1,518
厂商: NXP Semiconductors
文件页数: 8/34页
文件大小: 0K
描述: IC CTLR SMPS SW MODE 16SOIC
标准包装: 1
输出隔离: 隔离
输入电压: 14 V ~ 38 V
功率(瓦特): 600mW
工作温度: -40°C ~ 150°C
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SO
包装: 标准包装
其它名称: 568-5962-6
NXP Semiconductors
I HV
TEA1752T; TEA1752LT
GreenChip III SMPS control IC
V startup
V th(UVLO)
V CC
V trip
V start(VINSENSE)
VINSENSE
V en(PFCCOMP)
PFCCOMP
V en(LA TCH)
LATCH
PROTECTION
soft start
PFCSENSE
PFCDRIVER
soft start
FBSENSE
FBDRIVER
V to(FBCTRL)
FBCTRL
V start(fb)
VOSENSE
V O
charging VCC
capacitor
starting
converters
normal
operation
protection
restart
014aaa744
Fig 4.
Start-up sequence, normal operation and restart sequence
7.1.2 Supply management
All internal control voltages are derived from a temperature compensated and trimmed
on-chip band gap circuit. Internal reference currents are derived from a temperature
compensated and trimmed on-chip current reference circuit.
7.1.3 Latch input
Pin LATCH is a general purpose input pin, which can be used to switch off both
converters. The pin sources a current I O(LATCH) (80 μ A typical). Switching off both
converters is stopped as soon as the voltage on this pin drops below 1.25 V.
TEA1752T_LT
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 02 — 24 June 2010
? NXP B.V. 2010. All rights reserved.
8 of 34
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