TLD5045EJ_15 Datasheet, PDF (11/30 Pages) Infineon Technologies AG – 700mA High Integration - DC/DC Step-Down Converter

Infineon® LITIX™ Power
TLD5045EJ
Electrical Characteristics
Table 5-1 Electrical Characteristics
Parameter
Symbol
Values
Unit
Min.
Typ. Max.
Reference Voltage at V_SET
SET pin
1.16
1.225 1.29
V
Pull up current for I_FREQ
5
–
–
mA
FREQ pin
Oscillator switch off V_FREQ,HIGH –
3.2
–
V
threshold
Oscillator switch on V_FREQ,LOW –
1.2
–
V
threshold
1) The minimum switching ON time tON must be greater than tdON + tdOFF
Note or
Test Condition
VFREQ=0V
Number
P_5.1.15
P_5.1.16
P_5.1.17
P_5.1.18
5.2
Power Supply Monitoring
Over- and Undervoltage Shutdown
If the supply voltage V_REC drops below the input under voltagae threshold voltage V_REC,UVOFF, the power stage
is switched OFF and the device is in normal consumption mode (I_q,ON).
If V_REC rises again and reaches the input undervoltage startup threshold V_REC,UVON the power stage is restarted
and the device is back to normal operation mode.
Same behaviour applies to overvoltage.
The internal status transistor switches off during an overvoltage or undervoltage event on V_REC.
A detailed description of the under and overvoltage behaviour is displayed in Figure 5-1 below.
Data Sheet
11
Revision 1.0
2015-05-28