Datasheet > PT78NR106

PT78NR106

更新时间： 2024-11-20 02:58:35

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德州仪器 - TI		/
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描述
Negative output from positive input

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PT78NR106 数据手册

PT78NR100 Series

1 Amp Plus to Minus Voltage

Integrated Switching Regulator

SLTS058B

(Revised 8/31/2000)

• Negative output from positive input

• Wide Input Range

• Self-Contained Inductor

• Short Circuit Protection

• Over-Temperature Protection

• Fast Transient Response

The PT78NR100 Series creates a

negative output voltage from a posi-

tive input voltage greater than 7V.

These easy-to-use, 3-terminal, Inte-

grated Switching Regulators (ISRs)

have maximum output power of 5

watts and a negative output voltage

that is laser trimmed. They also have

excellent line and load regulation.

Pin-Out Information

Ordering Information

Pin Function

PT 78NR1

XX Y

Standard Application

-V_out

Output Voltage

Package Suffix

GND

03 = -3.0 Volts

05 = -5.0 Volts

52 = -5.2 Volts

06 = -6.0 Volts

07 = -7.0 Volts

08 = -8.0 Volts

09 = -9.0 Volts

10 = -10.0 Volts

12 = -12.0 Volts

14 = -13.9 Volts

15 = -15.0 Volts

V = Vertical Mount

S = Surface Mount

H = Horizontal

Mount

Vin

-Vout

COM

PT78NR100

COM

C1 = Required 100µF electrolytic ⁽¹⁾

C2 = Required 100µF electrolytic ⁽¹⁾

Pkg Style 500

Specifications

PT78NR100 SERIES

Typ Max

Characteristics

(T = 25°C unless noted)

Symbols

Conditions

Min

Units

Output Current

I_o

Over V_inrange V_o=-5V

V_o=-6V

0.05 ⁽²⁾

—

1.00

0.8

(2)

0.05

(2)

V_o=-7, -8, -9V

0.05

0.55

0.5

V_o=-10V

0.05 ⁽²⁾

(2)

V_o=-12V

0.05

0.40

0.30

(2)

V_o=-13.9, -15V

0.05

Short Circuit Current

Inrush Current

I_sc

V_in=10V

—

4×I_max

—

Apk

I_ir

t_ir

V_in=10V

—

On start-up

0.5

mSec

Input Voltage Range

V_in

0.1 ≤ I_o≤ I_max

V_o=-5V

—

V_o=-6, -7, -8, -9V

V_o=-10, -12V

V_o=-13.9, -15V

Output Voltage Tolerance

∆V_o

Over V_inrange

—

±1.0

±3.0

%V^o

T_a=-20°C to +70°C

Over V_inrange

0.1 ≤ I_o≤ I_max

Line Regulation

Load Regulation

V_oRipple/Noise

Reg_line

Reg_load

V_n

—

±0.5

±2

±1.0

—

%V_o

V_in=10V, I_o=I_max

Transient Response

(with 100µF output cap)

t_tr

50% load change

V_oover/undershoot

—

100

5.0

250

—

µSec

%V_o

Efficiency

V_in=10V, I_o=0.5×I_max,V_o= -5V

—

Switching Frequency

ƒ_o

T_a

Over V_inand I_oranges

600

650

700

kHz

Absolute Maximum

Operating Temperaturte Range

Free Air Convection, (40-60LFM)

Over V_inRange

-40

—

+85 ⁽³⁾

°C

Thermal Resistance

Storage Temperature

Mechanical Shock

θ_ja

T_s

—

Free Air Convection, (40-60LFM)

—

°C/W

°C

-40

—

+125

—

Per Mil-STD-883D, Method 2002.3

500

G’s

Mechanical Vibration

Per Mil-STD-883D, Method 2007.2,

20-2000 Hz, soldered in a PC board

—

G’s

Weight

—

6.5

Grams

Notes: (1) The PT78NR100 Series requires a 100µF electrolytic or tantalum capacitor at both the input and output for proper operation in all applications. The input

capacitor, C₁must have a ripple current rating ≥600 mArms, and an ESR ≤0.2Ω.

(2) The ISR will operate down to no load with reduced specifications.

(3) See Thermal Derating chart.

For technical support and more information, see inside back cover or visit www.ti.com/powertrends

12 3 4 5 6

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与PT78NR106相关器件

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PT78NR106H	TI	获取价格	1 Amp Plus to Minus Voltage Integrated Switching Regulator
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PT78NR107	ETC	获取价格	(-)7Vout 0.55Amp Wide-Input Plus to Minus Voltage ISR
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PT78NR107ST	TI	获取价格	1 Amp Plus to Minus Voltage Integrated Switching Regulator
PT78NR107V	TI	获取价格	1 Amp Plus to Minus Voltage Integrated Switching Regulator
PT78NR108	TI	获取价格	Negative output from positive input

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