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参数资料
型号： TPS2236DAP
厂商： TEXAS INSTRUMENTS INC
元件分类： 电源管理
英文描述： 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO32
封装： GREEN, PLASTIC, HTSSOP-32
文件页数： 23/40页
文件大小： 1410K
代理商： TPS2236DAP
TPS2231
TPS2236
www.ti.com.................................................................................................................................................. SLVS536J – JULY 2004 – REVISED SEPTEMBER 2009
DISSIPATION RATINGS (Thermal Resistance = °C/W)
TA ≤ 25°C
DERATING FACTOR
TA = 70°C
TA = 85°C
PACKAGE
POWER RATING
ABOVE TA = 25°C
POWER RATING
PW (20)(1)
704.2 mW
7.41 mW/°C
370.6 mW
259.5 mW
PWP (24)(1)
3153 mW
33.19 mW/°C
1659.5 mW
1161.6 mW
RGP (20) (2)
3277.5 mW
34.5 mW/°C
1725 mW
1207.3 mW
DAP (32) (1)
993.4 mW
10.46 mW/°C
522.8 mW
366 mW
PowerPAD not soldered down
DAP (32)(1)
4040.8 mW
42.55 mW/°C
2126.8 mW
1488.7 mW
(1)
These devices are mounted on an JEDEC low-k board (2-oz. traces on surface), (The table is assuming that the maximum junction
temperature is 120°C). The power pad on the device must be soldered down to the power pad on the board if best thermal performance
is needed.
(2)
This device is mounted on a JEDEC JESO51.5 high-k board (2 signal, 2 plane). The values assume a maximum junction temperature of
120°C.
RECOMMENDED OPERATING CONDITIONS
MIN
MAX
UNIT
VI(3.3VIN)
3.3VIN is only required for its respective functions
3
3.6
VI(1.5VIN)
Input voltage
1.5VIN is only required for its respective functions
1.35
1.65
V
VI(AUXIN)
AUXIN is required for all circuit operations
3
3.6
IO(3.3VOUT)
0
1.3
A
IO(1.5VOUT)
Continuous output current
TJ = 120°C
0
650
mA
IO(AUXOUT)
0
275
mA
TJ
Operating virtual junction temperature
–40
120
°C
ELECTRICAL CHARACTERISTICS
TJ = 25°C, VI(3.3VIN) = VI(AUXIN) = 3.3 V, VI(1.5VIN) = 1.5 V, VI(/SHDNx), VI(/STBYx) = 3.3 V, VI(/CPPEx) = VI(/CPUSBx) = 0 V,
VI(/SYSRST) = 3.3 V, OCx and RCLKENx and PERSTx are open, all voltage outputs unloaded (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
POWER SWITCH
TJ = 25°C, I = 1300 mA each
45
3.3VIN to 3.3VOUT with two switches
m
on for dual
TJ = 100°C, I = 1300 mA each
68
TJ = 25°C, I = 650 mA each
46
Power switch
1.5VIN to 1.5VOUT With two switches
m
resistance
on for dual
TJ = 100°C, I = 650 mA each
70
TJ = 25°C, I = 275 mA each
120
AUXIN to AUXOUT with two switches
m
on for dual
TJ = 100°C, I = 275 mA each
200
R(DIS_FET) Discharge resistance on 3.3V/1.5V/AUX outputs
VI(/SHDNx) = 0 V, I(discharge) = 1 mA
100
500
IOS(3.3VOUT) (steady-state value)
1.35
2
2.5
A
Short-circuit
IOS
IOS(1.5VOUT) (steady-state value)
TJ (–40, 120°C]. Output powered into a short
0.67
1
1.3
A
output current(1)
IOS(AUXOUT)(steady-state value)
275
450
600
mA
Rising temperature, not in overcurrent condition
155
165
Trip point, TJ
°C
Thermal
Overcurrent condition
120
130
shutdown
Hysteresis
10
VO(3.3VOUT) with 100-m short
43
100
VO(1.5VOUT) with 100-m short, TPS2231
100
140
Current-limit
From short to the 1st threshold within 1.1
μs
response time
times of final current limit, TJ = 25°C
VO(1.5VOUT) with 100-m short, TPS2236
110
150
VO(AUXOUT) with 100-m short
38
100
(1)
Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account
separately.
Copyright 2004–2009, Texas Instruments Incorporated
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Product Folder Link(s): TPS2231 TPS2236
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