参数资料
型号: TLE8242
厂商: INFINEON TECHNOLOGIES AG
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PQFP64
封装: GREEN, PLASTIC, LQFP-64
文件页数: 19/77页
文件大小: 1580K
代理商: TLE8242
TLE8242
Functional Description and Electrical Characteristics
Data Sheet
26
Rev. 1.0, 2009-02-25
Figure 14
Off-State Diagnostics Timing Diagram - short to ground
Over Voltage Shutdown and Diagnostics
If the voltage at the BAT pin is above VBATOV, the output drivers set all OUTx pins to low, and a diagnostic bit is
set (SPI Message #19 bit OV). During over voltage condition the integrator of the steady state current control is
halted (actual value of the duty cycle is not changed during over voltage). All other functions operate normally (e.g.
ADC, Dithering, Auto zero, Filters, …).
Electrical Characteristics:
V5D = 4.75V to 5.25V, Vbat = 5.5V to 42V,
T
j = -40 °C to +150 °C, all voltages with respect to ground, positive
current flowing into pin (unless otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Unit
Conditions
Min.
Typ.
Max.
5.3.1
Over voltage shutdown
V
BATOV
42
V
Rising voltage on
BAT
5.3.2
Open load detection voltage
V
POS(OL)
V5A-2.5
V5A-1.5 V
5.3.3
POS pin OL pull down current
I
PD(OL)
90
150
225
AV5A=5V,
VPOS=VNEG=V5A
5.3.4
Short to GND detection voltage
V
POS(SHG)
V5A-3.8 –
V5A-2.8 V
5.3.5
POS pin SG pull-up current
I
PU(SHG)
-280
-150
-90
AV5A=5V,
VPOS=VNEG=0V
5.3.6
NEG bias current - Low common
mode
I
NEG(L)
-40
10
AV5A=5V,
VPOS=VNEG=0V
5.3.7
NEG bias current - High common
mode
I
NEG(H)
0–
60
AV5A=5V,
VPOS=VNEG=V5A
VPOS
OUTx
OFF-T
SG-F
SPI Diagnostic
Read
Tested
Timer
Fault
Filter
Tested
Timer
Fault
Filter
LOAD ok
Short to
ground
Vol
Vsg
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