SC1405BTS.TR データシートの表示（PDF） - Semtech Corporation
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SC1405BTS.TR Datasheet PDF : 13 Pages
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SC1405B
POWER MANAGEMENT
Electrical Characteristics - AC Operating Specifications
Parameter
Symbol
Conditions
Min
Typ
High Side Driver
rise time
trTG1
CI = 3nF, VBST - VDRN = 4.6V,
14
fall time
tfTG
CI = 3nF, VBST - VDRN = 4.6V,
12
propagation delay time,
TG going high
tpdhTG
CI = 3nF, VBST - VDRN = 4.6V,
C-delay=0
20
propagation delay time,
TG going low
tpdlTG
CI = 3nF, VBST - VDRN = 4.6V,
15
Low-Side Driver
rise time
trBG
CI = 3nF, V V S = 4.6V,
15
fall time
trBG
CI = 3nF, V V S = 4.6V,
13
propagation delay time,
BG going high
tpdhBGHI
CI = 3nF, VBST - VDRN = 4.6V,
C-delay=0
12
propagation delay time,
TG going low
tpdlBG
CI = 3nF, V V S = 4.6V,
DRN <1V
7
Under-Voltage Lockout
V_5 ramping up
V_5 ramping down
PRDY
tpdhUVLO
tpdhUVLO
EN is High
EN is High
EN is transitioning from low to
high
tpdhPRDY
V_5 >UVLO threshold, Delay
measured from EN > 2.0V to
PRDY > 3.5V
EN is transitioning fro high to low tpdhUVLO
V_5 >UVLO threshold, Delay
measured from EN < 0.8V to
PRDY < 10% of V_5V
DSPS_DR
rise/fall time
propagation delay, DSPS_DR
going high
trDSPS DR.
tpdhDSPS DR
CI = 100 pf, V_5 = 4.6V
S_MOD goes high and BG
goes high or S_MOD goes low
propagation delay, DSPS_DR
goes low
tpdlDSPS DR
S_MOD goes high and BG
goes low
Overvoltage Protection
propagation delay
tpdhOVP S
V_5 + 4.6V, TJ = 125OC,
OVP_S > 1.2V to BG > 90%
of V_5
Note:
(1) This device is ESD sensitive. Use of standard ESD handling precautions is required.
2004 Semtech Corp.
4
Max Units
23
ns
19
ns
32
ns
24
ns
24
ns
21
ns
19
ns
12
ns
10
us
10
us
10
µs
500
µs
20
ns
10
ns
10
ns
1
µs
www.semtech.com
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