TLE6389 Datasheet, PDF (11/23 Pages) Infineon Technologies AG – Step-Down DC/DC Controller

TLE 6389
3
Electrical Characteristics (cont’d)
5V< V_S <48V; - 40°C< T_j <150°C;
all voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified
Item Parameter
Symbol Limit Values Unit Test Condition
min. typ. max.
3.0.28 Gate driver,
P-gate to source
voltage (on)
3.0.29 Gate driver,
peak charging
current
V_GDRV – TBD
V_S
6.5 V
I_GDRV
TBD
A
V_ENABLE = 5 V
C_BDS = 220 nF
C_GDRV = 5nF
3.0.30 Gate driver,
peak discharging
current
I_GDRV
TBD
A
3.0.31 Gate driver,
rise time
3.0.32 Gate driver,
fall time
3.0.33 Gate driver,
gate charge
t_r
70
t_f
100
Q_GDRV 50
ns V_ENABLE = 5 V
C_BDS = 220 nF
C_GDRV = 5nF
ns V_ENABLE = 5 V
C_BDS = 220 nF
C_GDRV = 5nF
nC
3.0.34 Current Limit
V_LIM = 70
Threshold Voltage V_VS –
V_CS
3.0.35 PWM to PFM
Threshold Current
3.0.36 PFM to PWM
Threshold Timing
t_{off_PFM}
100 130 mV
0.1*
I_LIM
TBD
mA I_{LIM =} V_LIM /
R_SENSE
µs
3.0.37 Oscillator frequency f_OSC
3.0.38 Maximum duty cycle d_MAX
3.0.39 Minimum duty cycle d_MIN
3.0.40 SYNC capture
range
270 360 450 kHz PWM mode only
100
% PWM mode only
TBD % PWM mode only
270 360 450 kHz PWM mode only
Target Datasheet Rev. 1.7
11
2001-09-17