参数资料
型号: TLE7719-T
厂商: INFINEON TECHNOLOGIES AG
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO28
封装: PLASTIC, TSSOP-28
文件页数: 16/75页
文件大小: 1485K
代理商: TLE7719-T
TLE7719-T
Functional Block Description
Data Sheet
23
V1.1, 2004-09-13
3.1.3
Chargepump
To obtain all specified parameters in High voltage and Sync mode, an additional supply
voltage (CHP) is required. This supply voltage is generated out ouf BOOST12 by an
internal regulated chargepump circuit. As during High voltage and Sync mode, the static
current consumption on CHP can exceed the chargepump’s current capacity, an
external buffering capacitor is required.
Figure 5
Chargepump circuit
3.1.13
Reference current
IREF
100
A–
3.1.14
Current threshold
at IREF for
activation of
Emergency bias
mode
IREF_ebm
20
85
A
3.1.15
Voltage difference
between GNDA
and GNDD to
detect GND-loss
Vdiff_gnd
300
30
Vdiff = |VGNDA -
VGNDD|,
measured in both
directions
3.1.16
Delay for
indicating GND-
loss to SFR
70s
Pos.
Parameter
Symbol
Limit Values
Unit Test Conditions
min.
typ.
max.
25
BOOST12
Chargepump
26
CHP
precharge/discharge
bypass
Output voltage
regulation
Vreg
10k
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