SC1404(2003) Просмотр технического описания (PDF) - Semtech Corporation
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SC1404 Datasheet PDF : 27 Pages
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SC1404
POWER MANAGEMENT
Electrical Characteristics Cont.
Unless otherwise noted: V+ = 15V, both PWMs on, SYNC = 0V, VL load = 0mA, REF load = 0mA, PSAVE# = 0V, TA =-40 to 85°C.
Typical values are at TA = +25°C. Circuit = Typical Application Circuit
PARAMETER
CODE
CONDITIONS
MIN TYP
MAX
UNITS
Input Leakage Current
PSAVE#, ON5, SYNC
ILP, IL5, ILSN
SEQ = REF
-1
+1 µA
Input Leakage Current - ON3 IL3
ON3 = 15V
-2
+2 µA
Input Leakage Current
SHDN#
ILSD
SHDN# = 15V
-1
3 +10 µA
Logic Output Low Voltage
VORSTL
RESET#, ISINK = 4mA
0.4
V
Logic Output High Current IORSTH
RESET# = 3.5V
1
mA
ON5 Pull-down Resistance RON5
ON5, ON3 = 0V, (SEQ = REF)
100
Ω
Gate Driver Sink/Source
IDL3, IDH3,
DL3, DH3, DL5, DH5, forced to 2.5V
1
A
Current
IDL5, IDH5
Gate Driver On-Resistance
RGBH3, RGHP3,
RGBH5, RGHP5,
RGVL3, RGLG3
RGVL5, RGLG5
BST3 to DH3, DH3 to PHASE3,
BST5 to DH5, DH5 to PHASE5,
VL to DL3, DL3 to PGND,
VL to DL5, DL5 to PGND
1.5 7
Ω
Non-Overlap Threshold
ZNOV T
PHASE3, PHASE5 to GND
1.0
V
Shoot-through (Non-Overlap)
Delay
DHx falling edge to DLx rising edge
DLx falling edge to DHx rising edge
(1V threshold on DHx and DLx, no
external capacitance on DL or DH)
10 17 25 nsec
35 75 115 nsec
12V LINEAR REGULATOR
VDD Shunt Threshold
VDDSHN
Rising edge, hysteresis = 5%
17
21
V
VDD Shunt Current
IVDDST
VDD = 20V
5
10 30 mA
VDD Leakage Current
IVDDLK
VDD = 5V, Standby mode
30 µA
12OUT Output Voltage
VOUT12
0mA < Load < 200mA
11.55 12.1 12.75 V
12OUT Current Limit
ILIM12
12OUT forced to 11V, VDD = 13V
200
mA
12OUT Regulation Threshold V12THR
Falling edge
11.9
V
Quiescent VDD Current
I12Q
VDD = 18V, run mode, no 12OUT load
Notes:
(1) This device is ESD sensitive. Use of standard ESD handling procedures required.
(2) Applicable from 0 to +85°C.
80 100 µA
2003 Semtech Corp.
5
www.semtech.com
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