InnoSwitch-CH
Conditions
SOURCE = 0 V
TJI = -40 °C to +125 °C
Parameter
Symbol
Min
Typ
Max
Units
(Unless Otherwise Specified)
Synchronous Rectifier1 (cont.)
SYNCHRONOUS
RECTIFIER Pin
Pull-Down Current
TJ = 25 °C
CLOAD = 2 nF, fS = 100 kHz
ISR(PD)
VSR
tR
230
4.2
280
4.4
315
4.6
mA
V
SYNCHRONOUS
RECTIFIER Pin
Drive Voltage
See Note A
TJ = 25 °C
CLOAD = 2 nF
See Note A
0-100%
10-90%
0-100%
10-90%
71
40
32
15
Rise Time
Fall Time
ns
ns
TJ = 25 °C
CLOAD = 2 nF
See Note A
tF
TJ = 25 °C
VSPS = 4.4 V
ISR = 10 mA
See Note A
Output Pull-Up
Resistance
Ω
Ω
RPU
11.5
3.5
TJ = 25 °C
VSPS = 4.4 V
ISR = 10 mA
See Note A
Output Pull-Down
Resistance
RPD
Notes:
NOTES:
A. This parameter is derived from characterization.
B. IS1 is an estimate of device current consumption at no-load, since the operating frequency is so low under these conditions. Total device
consumption at no-load is sum of IS1 and IDSS2 (this does not include secondary losses)
C. Since the output MOSFET is switching, it is difficult to isolate the switching current from the supply current at the Drain. An alternative is to
measure the PRIMARY BYPASS pin current at 6.2 V.
D. The PRIMARY BYPASS pin is not intended for sourcing supply current to external circuitry.
E. To ensure correct current limit it is recommended that nominal 0.1 mF/1 mF/10 mF capacitors are used. In addition, the BPP capacitor value
tolerance should be equal or better than indicated below across the ambient temperature range of the target application. The minimum and
maximum capacitor values are guaranteed by characterization.
Tolerance Relative to Nominal
Capacitor Value
Nominal PRIMARY
BYPASS Pin Capacitor
Value
Minimum
-60%
Maximum
+100%
+100%
N/A
0.1 mF
1 mF
-50%
10 mF
-50%
F. This parameter is derived from the change in current limit measured at 1X and 4X of the di/dt shown in the ILIMIT specification.
G. Auto-restart on-time has same temperature characteristics as the oscillator (inversely proportional to frequency).
H. IDSS1 is the worst-case OFF-state leakage specification at 80% of BVDSS and the maximum operating junction temperature. IDSS2 is a typical
specification under worst-case application conditions (rectified 230 VAC) for no-load consumption calculations.
I. Breakdown voltage may be checked against minimum BVDSS specification by ramping Drain voltage up to but not exceeding minimum BVDSS
.
J. For reference only. This is the total range of current limit threshold which corrects for variations in the current sense bond wire. Both of
which are trimmed to set the normalized output constant current.
K. Measured at the VOUT pin of the device. At the end of the cable under load, the apparent auto-restart threshold will be lower.
20
Rev. J 10/17
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