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参数资料
| 型号： | TPS65230DCA |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO48 |
| 封装： | HTSSOP-48 |
| 文件页数： | 22/26页 |
| 文件大小： | 899K |
| 代理商： | TPS65230DCA |
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
www.ti.com.................................................................................................................................... SLVSA10A – SEPTEMBER 2009 – REVISED SEPTEMBER 2009
over operating free-air temperature range (unless otherwise noted)
MIN
NOM
MAX
UNIT
Input voltage range at VIN
10.8
12
22
V
Input voltage range at VINU
4.75
5.5
V
Input voltage range at VINB
4.75
6.1
Voltage range, EN_BCK1, EN_BCK2, EN_BCK3, EN_USB1/SCL, EN_USB2/SDA,
3.3
V
nRST, USBFLG1/VCTRL2, USBFLG2/VCTRL3 pins
Input voltage, nRST pin
3.3
V
Voltage range, INT pin (I2C disabled)
5.4
6.6
V
Voltage range, INT pin (I2C enabled)
3.3
V
TA
Ambient operating temperature
50
°C
VIN = 12 V ±5%, VINB2, VINB3 = 5 V ±5%, VINU = 5 V ±5% TJ = 0°C to 150°C, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INPUT VOLTAGE
VIN
Input supply voltage
10.8
12
22
V
VIN rising
10.8
VBOR
Brown Out Reset threshold
V
VIN falling
9.3
VIN rising
10.8
UVLO VIN
UVLO threshold – VIN (main supply)
V
VIN falling
4.7
VINB rising
4.75
UVLO threshold – VINB
UVLO VINB
V
(BUCK2/BUCK3 supply)
VINB falling
4.25
VINU rising
4.4
UVLO VINU
UVLO threshold – VINU (USB supply)
V
VINU falling
3.8
INPUT CURRENT
All regulators/USB switches
ICCQ
Input supply current
4
mA
disabled
LOGIC INPUT LEVEL (SCL, SDA, INT, VCTRL2, VCTRL3)
VIH
Input high level
1.2
V
VIL
Input low level
0.4
V
VI2C_disable
I2C disable voltage (INT)
4
V
BUCK ENABLE INPUTS (EN_BCK1,2,3)
VEN
Enable threshold
1.2
V
VENHYS
Enable voltage hysteresis
100
mV
IPULLUP
Pull-up current
tEN = 0.2 ms/nF
6
uA
RD
Discharge resistor
1
k
tD
Discharge time
Power-up
5
ms
I2C ENABLE THRESHOLD (INT pin)
I2C enabled if pull-up resistor
VINTTH
I2C enable threshold
is connected to a value
4.8
V
above threshold
LOGIC OUTPUT LEVEL(SDA, INT, nRST, USBFLG1, USBFLG2 )
OL
Output low level
IOUT = 3 mA through pull-up
0.3
0.4
V
PWM CONTROLLER (BUCK1)
VOUT
Output voltage range(1)
3.3
6.1
V
PG
Power good threshold
VOUT rising
95
%
(1)
Output voltage range is limited by the minimum and maximum duty cycle. VOUT(min) ~ d(min) x VINPUT and VOUT(max) ~ d(max) x
VINPUT.
Copyright 2009, Texas Instruments Incorporated
5
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