L6725ATR datasheet(12/32 Pages) STMICROELECTRONICS

数据搜索系统，热门电子元器件搜索

L6725ATR 数据表(PDF) 12 Page - STMicroelectronics

部件名	L6725ATR

功能描述	Voltage mode PWM controller with bootstrap anti-discharging system

PDF	32 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

12 / 32 page

Device description

L6725 - L6725A

12/32

5.5

Error amplifier

5.6

Soft start

When both VCC and VIN are above their turn-ON thresholds (VIN is monitored by the OCH pin)

the start-up phase takes place. Otherwise the SS pin is internally shorted to GND. At start-up, a

ramp is generated charging the external capacitor CSS with an internal current generator. The

initial value for this current is 35µA and charges the capacitor up to 0.5V. After that it becomes

10µA until the final charge value of approximately 4V (see Figure 5.).

Figure 4.

Error amplifier reference

Figure 5.

Soft-Start phase.

0.5V

Vcc

Vin

Vss

4.2V

1.25V

ALLDATASHEET是否为您带来帮助? [ DONATE ]
关于 Alldatasheet \| 广告服务 \| 联系我们 \| 隐私政策 \| 数据表链接 \| 链接交换 \| 制造商名单 All Rights Reserved©Alldatasheet.com
Mirror Sites English : Alldatasheet.com \| English : Alldatasheet.net \| Chinese : Alldatasheetcn.com \| German : Alldatasheetde.com \| Japanese : Alldatasheet.jp Russian : Alldatasheetru.com \| Korean : Alldatasheet.co.kr \| Spanish : Alldatasheet.es \| French : Alldatasheet.fr \| Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com \| Polish : Alldatasheet.pl \| Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in \| Mexican : Alldatasheet.com.mx \| British : Alldatasheet.co.uk \| New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com \| icmetro.com

ALLDATASHEET是否为您带来帮助? [ DONATE ]

Family Site : ic2ic.com | icmetro.com