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TPSM846C24MOLR PDF预览

TPSM846C24MOLR

更新时间: 2023-09-03 20:35:06
品牌 Logo 应用领域
德州仪器 - TI 电源电路
页数 文件大小 规格书
40页 1783K
描述
4.5V 至 15V 输入、0.35V 至 2.0V 输出、35A 电源模块 | MOL | 59 | -40 to 105

TPSM846C24MOLR 数据手册

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TPSM846C24  
ZHCSHH6B JANUARY 2018REVISED JANUARY 2019  
www.ti.com.cn  
6.4 Thermal Information  
TPSM846C24  
MOL (QFN)  
59 PINS  
8.7  
THERMAL METRIC(1)  
UNIT  
RθJA  
ψJT  
Junction-to-ambient thermal resistance(2)  
Junction-to-top characterization parameter(3)  
Junction-to-board characterization parameter(4)  
°C/W  
°C/W  
°C/W  
0.9  
ψJB  
4.3  
(1) For more information about thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report.  
(2) The junction-to-ambient thermal resistance, RθJA, applies to devices soldered directly to a 100 mm × 100 mm, 6-layer PCB with 2 oz.  
copper and natural convection cooling. Additional airflow reduces RθJA  
.
(3) The junction-to-top characterization parameter, ψJT, estimates the junction temperature, TJ, of a device in a real system, using a  
procedure described in JESD51-2A (section 6 and 7). TJ = ψJT × Pdis + TT; where Pdis is the power dissipated in the device and TT is  
the temperature of the top of the device.  
(4) The junction-to-board characterization parameter, ψJB, estimates the junction temperature, TJ, of a device in a real system, using a  
procedure described in JESD51-2A (sections 6 and 7). TJ = ψJB × Pdis + TB; where Pdis is the power dissipated in the device and TB is  
the temperature of the board 1mm from the device.  
6.5 Electrical Characteristics  
Over –40°C to 105°C free-air temperature range, VIN = 12 V, VOUT = 1.2 V, IOUT = IOUT(max), ƒSW = 500 kHz,  
CIN1 = 4 × 22 µF, 25 V, 1210 ceramic; CIN2 = 2 × 330 µF, 25 V, electrolytic bulk; COUT1 = 4 × 47 µF, 6.3 V, 1210 ceramic;  
COUT2 = 2 × 470 µF, 6.3 V, polymer bulk (unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
MIN  
TYP  
MAX  
UNIT  
INPUT VOLTAGE (VIN  
)
VIN  
Input voltage  
Over IOUT range  
VIN rising  
4.5  
15  
V
V
4.5  
4
VIN_UVLO  
IVIN  
VIN undervoltage lock out  
Input operating current  
VIN falling  
EN = 0 V  
7.7  
12  
mA  
OUTPUT VOLTAGE (VOUT  
)
VOUT adjustable range(1)  
Over IOUT range  
0.5  
–1%  
2
1%  
V
RSET = Not loaded, TJ = 25°C, IOUT = 0 A  
RSET = 10 kΩ, 1%, TJ = 25°C, IOUT = 0 A(2)  
0°C < TJ < 85°C, IOUT = 0 A(1)  
Setpoint voltage tolerance  
–1.5%  
–0.5%  
–1%  
1.5%  
0.5%  
1%  
VOUT  
Temperature variation  
–40°C < TJ < 125°C, IOUT = 0 A(1)  
Line regulation  
4.5 V < VIN < 15 V, IOUT = 0 A  
±0.05%  
±0.2%  
13  
Load regulation  
Output voltage ripple  
Over IOUT range, using remote sense  
20-MHz bandwidth  
mV  
OUTPUT CURRENT  
Natural Convection. See SOA graph for derating over  
temperature.  
Output current  
0
35  
A
A
IOUT  
Overcurrent threshold  
Overcurrent accuracy  
42  
IOC(acc)  
ISH(acc)  
–15%  
–15%  
–3  
15%  
15%  
3
(IOUT1 – IOUT2) ÷ ITOTAL, IOUT 20 A per module(1)  
(IOUTx – ITOTAL) ÷ 2, IOUT < 20 A per module(1)  
Output current share accuracy  
A
SOFT START / STOP  
tSStart Internal soft-start time  
tSStop Internal soft-stop time  
ENABLE (EN)  
3
3
ms  
ms  
Enable high voltage  
Enable low voltage  
1.3  
V
V
Enable threshold voltage  
Hysteresis on Enable  
VEN  
0.8  
170  
mV  
(1) Specified by design.  
(2) The stated limit of the set-point tolerance includes the tolernace of both the internal voltage reference and the internal adjustment  
resistor. The overall output voltage tolerance is affected by the tolerance of the external RSET resistor.  
6
Copyright © 2018–2019, Texas Instruments Incorporated  

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