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参数资料
| 型号： | PT7756C |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 15 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, SMA27 |
| 封装： | SIP-27 |
| 文件页数： | 1/7页 |
| 文件大小： | 149K |
| 代理商： | PT7756C |
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
Standard Application
Cin = Required 560F electrolytic
(See input filter note)
Cout = Required 2000F electrolytic
L1
= Optional 1H input choke
PT7750 Series
The PT7750 series is a +24V in-
put, 15 Amp output, high-
performance Integrated Switching
Regulator (ISR) housed in a 27-pin
SIP package. The 15A capability
allows easy integration of the latest
high-speed, low-voltage Ps and bus
drivers into +24V distributed power
systems.
The PT7750 series has been de-
signed to work in parallel with one or
For STBY* pin:
open = output enabled
ground = output disabled.
Pin-Out Information
Pin Function
1
VID0
2
VID1
3
VID2
4
VID3
5
STBY* - Stand-by
6
VID4
7Vin
8Vin
9Vin
10
Vin
11
Vin
12
Remote Sense Gnd
13
GND
Pin Function
14
GND
15
GND
16
GND
17
GND
18
GND
19
GND
20
Vout
21
Vout
22
Vout
23
Vout
24
Vout
25
Vout
26
Remote Sense Vout
27
Sync Out
more of the PT7747 current boosters
for increased Iout in increments of 15A.
The output voltage of the PT7750
series can be easily programmed over
a wide range with a 5-bit input. A
differential remote sense is provided
which automatically compensates for
any voltage drop from the ISR to the
load.
2000F of output capacitance is
required for proper operation.
+24V bus input
High Efficiency
Differential Remote
Sense
27-pin SIP Package
Parallelable with
PT7747 15A current boosters
Features
PT7750
7 - 11
13 - 19
20 - 25
27
V
IN
GND
1H
GND
V
OUT
C
OUT
+
C
IN
+
12
26
1
L1
SYNC OUT
LOAD
REMOTE SENSE (+)
REMOTE SENSE (-)
VID1
VID2
VID3
VID4
PROGRAMMING PINS
2
3
4
STBY*
5
6
VID0
SLTS053A
(Revised 6/30/2000)
Specifications
Characteristics
PT7750 SERIES
(T
a = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Ta = +60°C, 200 LFM
0.1 (1)
—
15 (2)
A
Ta = +25°C, natural convection
0.1 (1)
—
15 (2)
Input Voltage Range
Vin
0.1A
≤ Io ≤ Io max
20.0
—
28.0
V
Undervoltage Lockout Threshold
Vuvl
0.1A
≤ Io ≤ Io max
—
18.7
—
V
Output Voltage Tolerance
Vo
Vin = +24V, Io = 15A PT7751
—
±80
mV
0°C
≤ Ta ≤ +55°C
PT7756
—
±160
Line Regulation
Regline
20V
≤ Vin ≤ 28V, Io = Io max (w/remote sense)
—
±15
—
mV
Load Regulation
Regload
Vin = +24V, 0.1 ≤ Io ≤ Io max (w/remote sense)
—
±10
—
mV
Vo Ripple/Noise
Vn
Vin = +24V, Io = Io max
—75
—
mV
Transient Response
ttr
Io step between 7.5A and 15A
—
100
—
Sec
with Cout = 2000F
Vos
Vo over/undershoot
—
200
—
mV
Efficiency
η
Vin = +24V, Io = 10A
Vo = 5.0V
—
88
—
Vo = 3.3V
—
84
—
%
Vo = 2.5V
—
80
—
Switching Frequency
o
20V
≤ Vin ≤ 28V
300
350
400
kHz
0.1A
≤ Io ≤ 15A
Absolute Maximum
Ta
—
0
—
+85 (3)
°C
Operating Temperature Range
Storage Temperature
Ts
—
-40
—
+125
°C
Weight
—
Vertical/Horizontal
—
53/66
—
grams
Notes
(1) ISR-will operate down to no load with reduced specifications. Please note that this product is not short-circuit protected.
(2) The PT7750 series can be easily paralleled with one or more of the PT7747 Current Boosters to provide increased output current in increments of 15A
(3) See safe operating area curves or contact the factory to determine the appropriate derating.
Output Capacitors:
The PT7750 series requires a minimum output capacitance of 2000F for proper operation. Do not use Oscon type capacitors. The maximum allow-
able output capacitance is (42,000
÷ Vout)F for the PT7751, (96,000 ÷Vout)F for the PT7756, or 15,000F, whichever is less.
Input Filter:
An input inductor is optional for most applications. The input inductor must be sized to handle 9ADC with a typical value of 1H. The input capacitance
must be rated for a minimum of 8.0 Arms of ripple current when operated at maximum output current and maximum output voltage. Contact an applications
engineer for input capacitor selection for applications at other output voltages and output currents.
15 Amp 24V Input “Big Hammer III”
Programmable ISR
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PT7756N | 功能描述:开关变换器、稳压器与控制器 6.6-12.8Vout 15A 24V Input Prog ISR RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| PT7761 | 制造商:DATATRONIC 功能描述: |
| PT7761-5V | 制造商:TI 制造商全称:Texas Instruments 功能描述:40-A Programmable Integrated Switching Regulator Module |
| PT7761A | 功能描述:DC/DC转换器 1.3V to 3.5V 40-A 5V Input Prog ISR RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| PT7761C | 功能描述:REG 1.3-3.5V 40A 5VIN PROG SMD RoHS:否 类别:电源 - 板载 >> DC DC Converters 系列:PT7760 设计资源:Maxi/Mini/Micro Design Guide, Appl Manual 标准包装:1 系列:Maxi 类型:隔离 输出数:1 电压 - 输入（最小）:43V 电压 - 输入（最大）:110V Voltage - Output 1:15V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:* 电源（瓦） - 制造商系列:400W 电压 - 隔离:* 特点:* 安装类型:通孔 封装/外壳:模块 尺寸/尺寸:4.60" L x 2.20" W x 0.54" H（116.8mm x 55.9mm x 13.7mm） 包装:散装 工作温度:-55°C ~ 100°C 效率:* 电源（瓦特）- 最大:* |
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