Datasheet

Switch
CTRL
Logic
12
6
20
V
THV
VHV
V3P3
OUT
10
ISET_S0
5
18
EN
V3P3OUT
Thermal
shutdown
9
ISET_S3
11
HV_EN
8
ISET_V3P3
17
S0
7
OUT
3
42
1
14
13
19
EN
TPS22980
www.ti.com SLVSB61C –DECEMBER 2011–REVISED SEPTEMBER 2013
ELECTRICAL CHARACTERISTICS (continued)
Unless otherwise noted the specification applies over the V
DD
range and operating junction temp –40°C ≤ T
J
≤ 85°C. Typical
values are for V
3P3
= 3.3V, V
HV
= 15V, and T
J
= 25°C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
CURRENT LIMIT
R
SET_S0, 3
= 402 kΩ 100 110 150
I
LIMHV
VHV Switch current limit state S0 or S3 R
SET_S0, 3
= 80.6 kΩ 495 525 555 mA
R
SET_S0, 3
= 26.7 kΩ 1515 1575 1635
R
SET_V3P3
= 402 kΩ 100 110 150
I
LIM3P3
V3P3 Switch current limit R
SET_V3P3
= 80.6 kΩ 495 525 555 mA
R
SET_V3P3
= 26.7 kΩ 1515 1575 1635
I
REV3P3
V3P3 Switch Reverse Current Limit 10 27 45 mA
V3P3 Switch Reverse Current Response
T
V3P3RC
V
OUT
= V
3P3
→ V
3P3
+ 20mV 100 µS
Time
T
VHVSC
VHV Switch short circuit response time C
OUT
= 20 pF 8 µs
T
V3P3SC
V3P3 Switch short circuit response time C
OUT
= 20 pF 8 µs
TRANSITION DELAYS
T
3P3OFF
VHV to V3P3 off time C
OUT
= 1.1µF, EN = 1, HV_EN = 1→0 6 ms
T
0-3.3V
0V to 3.3V ramp time C
OUT
≤ 20 pF 6 ms
T
3.3V-VHV
3.3V to VHV ramp time C
OUT
≤ 20 pF 6 ms
T
VHV-3.3V
VHV to 3.3V ramp time C
OUT
≤ 20 pF 23 ms
T
LIM
Overcurrent response time C
OUT
≤ 20 pF 0.5 ms
FUNCTIONAL BLOCK DIAGRAM
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