BD7F105EFJ-C
Electrical Characteristics (Unless otherwise Tj = -40 °C to +150 °C, VIN = 12 V, VSDX/EN = 2.5 V)
Parameter
Symbol
Min
Typ
Max
Unit
Conditions
Power Supply Block
SDX/EN = 0.3 V
Tj ≤ 125 °C
Current at Shutdown
IST
-
0
10
μA
REF = 0.6 V
Operating Current at No Switching
UVLO Detection Voltage 1
UVLO Detection Voltage 2
UVLO Voltage Hysteresis
ICC
0.43
3.00
3.20
0.12
1.00
3.20
3.40
0.20
1.70
3.40
3.60
0.28
mA
V
VUVLO1
At the VIN pin falling
At the VIN pin rising
VUVLO2
V
VUVLO_HYS
V
Shutdown and Enable Control Block
Shutdown Voltage at the SDX/EN Pin
Enable Voltage 1
VSDX
VEN1
-
-
0.3
2.10
2.00
0.26
2.00
3750
V
V
1.90
1.60
0.14
0.50
1250
2.00
1.80
0.20
1.00
2500
At the SDX/EN pin rising
At the SDX/EN pin falling
Enable Voltage 2
VEN2
V
Enable Voltage Hysteresis
SDX/EN Pin Current
VEN_HYS
ISDX/EN
RSDX/EN
V
μA
kΩ
SDX/EN = 2.5 V
SDX/EN Pin Pull-down Resistance
Reference Voltage Block
Reference Voltage
REF Pin Current
VINTREF
IREF
0.525
140
0.540
200
0.555
260
V
μA
RREF = 2.7 kΩ
Switching Block
On Resistance
RON
ILIMIT
IBSP
-
0.40
2.60
3.38
0.80
3.12
4.52
Ω
A
A
SW-GND ISW = 50 mA
Over Current Detection Current
BSP Detection Current
2.08
2.39
At PWM operation
(Duty = 40 %)
Averaging Switching Frequency
Maximum Switching Frequency
On Time
fSW
fSW_MAX
tON
300
-
363
-
430
498
kHz
kHz
μs
At PWM operation
(Duty = 40 %)
0.962
1.102
1.270
Minimum ON Time
Maximum OFF Time
tON_MIN
120
25
250
35
380
45
ns
μs
tOFF_MAX
From switching start to VINTREF
x 90 %
Soft Start Time
tSS
3.0
5.0
7.0
ms
Protection Function Block
Short Protection Detection Voltage
REFOPEN Protection Detection Voltage
SCP/REFOPEN Detection Mask Time
SCP Mask Time at Start-up
VSCP
VREFOP
tMASK
0.20
0.60
1.05
5.25
262
0.30
0.70
1.50
7.50
375
0.40
0.80
1.95
9.75
488
V
V
ms
ms
µs
ms
tMASKSCP
tBSP
BSP Stop Time at Detection
Restart Time
tRESTART
18.0
24.0
30.0
Load Compensation Block
KL_COMP (Compensation Coefficient of
REF Current for SW Current)
(Note 1)
KL_COMP
0.090
0.128
0.166 %/MΩ
(Note 1) Load compensation current coefficient is the coefficient which compensates output voltage decrease for output current.
It sets by L_COMP pin resistor. It is tested at RL_COMP = 10 kΩ.
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TSZ22111 • 15 • 001
TSZ02201-0F1F0A200870-1-2
01.Mar.2022 Rev.001
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