TLD5095EL Datasheet, PDF (23/31 Pages) Infineon Technologies AG – DC/DC Boost, Buck-Boost, SEPIC controller

TLD5095EL
Protection and Diagnostic Functions
9.2
Electrical Characteristics
V_IN = 6V to 40V; 4.5V ≤ V_FBH ≤ 40V, 4.5V ≤ V_FBL ≤ 40V, 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.
Status Output:
9.2.1 Status Output Voltage Low
9.2.2 Status Sink Current Limit
9.2.3 Status Output Current
9.2.4 Status Delay Time
V_ST,LOW –
I_ST,MAX
2
I_ST,HIGH
–
t_SD
8
–
0.4
V
I_ST = 1mA
–
–
mA V_ST = 1V
–
1
µA V_ST = 5V
10
12
ms –
Temperature Protection:
9.2.5 Over Temperature Shutdown T_j,SD
160 175 190 °C –
9.2.6
Over Temperature Shutdown
Hystereses
T_j,SD,HYST –
15
–
°C –
Overvoltage Protection:
9.2.7 Output Over Voltage Feedback
Threshold Increasing
9.2.8 Output Over Voltage Feedback
Hysteresis
9.2.9 Over Voltage Reaction Time
V_OVFB,TH
V_OVFB,HYS
t_OVPRR
1.21
50
2
9.2.10 Over Voltage Feedback Input I_OVFB
-1
Current
1.25
–
–
0.1
1.29
150
10
1
V–
mV Output Voltage
decreasing
µs Output Voltage
decreasing
µA V_OVFB = 1.25 V
Open Load and Open Feedback Diagnostics
9.2.11 Open Load/Feedback
Threshold
V_REF,1,3 -100 –
9.2.12 Open Feedback Threshold
V_REF,2
0.5
–
-20
mV V_REF = V_FBH - V_FBL
Open Circuit 1 or 3
1
V
V_REF = V_FBH - V_FBL
Open Circuit 2
Note: Integrated protection functions are designed to prevent IC destruction under fault conditions described in the
data sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are
not designed for continuous repetitive operation.
Datasheet
23
Rev. 1.1, 2009-12-16