TLF51801ELV Datasheet, PDF (15/29 Pages) Infineon Technologies AG – 10 A synchronous DC/DC Step-Down Controller

TLF51801ELV
Regulator
Electrical Characteristics:
V_S = 6.0 V to 40 V, T_j = -40°C to +150°C, all voltages with respect to ground (unless otherwise specified)
Pos. Parameter
Symbol
Limit Values
Unit Conditions
Min. Typ. Max.
5.6.19 Input voltage startup threshold V_S,on
–
5.6.20 Input under voltage shutdown
V_S,hyst
–
hysteresis
–
4.75 V V_S increasing
300 –
mV –
Gate Driver for upper Switch
5.6.21 Upper Gate Driver Peak Sourcing I_UG,SRC –
Current
5.6.22 Upper Gate Driver Peak Sinking I_UG,SNK –
Current
5.6.23 Upper Gate Driver Output Rise t_R,UG
–
Time
5.6.24 Upper Gate Driver Output Fall t_F,UG
–
Time
5.6.25 Upper Gate Driver Output Voltage V_UG
–
-380 –
550 –
30 60
20 40
4.4 5.2
mA V_UG = 3.5V;
1)
mA V_UG = 1.5V;
1)
ns C_L,UG = 3.3nF;
V_UG = 1V to 4V
ns C_L,UG = 3.3nF;
V_UG = 1V to 4V
V
C_L,UG = 3.3nF
Gate Driver for lower Switch
5.6.26 Lower Gate Driver Peak Sourcing I_LG,SRC
Current
5.6.27 Lower Gate Driver Peak Sinking I_LG,SNK
Current
5.6.28 Lower Gate Driver Output Rise t_R,LG
Time
5.6.29 Lower Gate Driver Output Fall t_F,LG
Time
5.6.30 Lower Gate Driver Output Voltage V_LG
–
-380 –
–
550 –
–
30 60
–
20 40
5.05 5.40 5.75
5.6.31 Overcurrent limitation
I_{OC_lim,ref} 89
95
101
5.6.32 Overcurrent comparator offset
V_OCComp, -15
–
+15
voltage
Offset
1) Not subject to production test, specified by design.
mA V_LG = 3.5V;
1)
mA V_LG = 1.5V;
1)
ns C_L,LG = 3.3nF;
V_LG = 1V to 4V
ns C_L,LG = 3.3nF;
V_LG = 1V to 4V
V
C_L,LG = 3.3nF;
V_S ≥ 7V
μA V_COMP = 3V
sensehigh-senselow
decreasing;
monitor max current on
sensehigh
mV V_FB = 1V;
V_COMP = 4V;
sensehigh-senselow
increasing
Data sheet
15
Rev. 1.0.1, 2013-04-15