VIPER17LN 查看數據表（PDF） - STMicroelectronics

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产品描述 (功能)

生产厂家

VIPER17LN

Off-line high voltage converters

STMicroelectronics 

Block diagram

1

Block diagram

VIPER17

Figure 2. Block diagram

BR

VVVDDDcDc

DRAIN

CONT

15uA

OVP

LOGIC

OVP

0.45V

SOFT

START

.

Vin_OK

OCP

BLOCK

6uA

Internal Supply bus

&

Ref erence Voltages

OCP

+ PWM

-

SUPPLY

& UVLO

HV_ON Istart-up

UVLO

OSCILLATOR

BURST TURN-ON

LOGIC

THERMAL

SHUTDOWN

OTP

S

Q

LEB

R1 R2

+

-

Ref

2nd OCP

LOGIC

OLP OVP OTP

BURST-MODE

LOGIC

BURST

Rsense

FB

GND

2

Typical power

Table 2. Typical power

Part number

230 VAC

Adapter(1)

Open frame(2)

85-265 VAC

Adapter(1)

Open frame(2)

VIPER17

9W

12 W

5W

7W

1. Typical continuous power in non ventilated enclosed adapter measured at 50 °C ambient.

2. Maximum practical continuous power in an open frame design at 50 °C ambient, with adequate heat sinking.

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