参数资料
型号: BD9740KN-E2
厂商: Rohm Semiconductor
文件页数: 11/15页
文件大小: 0K
描述: IC REG BUCK BST INV SYNC 48UQFN
标准包装: 2,500
类型: 降压(降压),升压(升压),反相
输出数: 7
输入电压: 1.5 V ~ 10 V
频率 - 开关: 100kHz ~ 1.2MHz
电流 - 输出: 30mA
同步整流器:
工作温度: -20°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-VFQFN
包装: 带卷 (TR)
供应商设备封装: 48-UQFN
BD9739KN,BD9740KN
Technical Note
STBY1 to STBY7 (CH1 to CH7 on/off control)
REGON (CCD REG control input)
MODE (CCD sequence control pin)
STBY1 to STBY7
V c c
7CH (power transistor drain output)
OUT7B
V cc
REGON
MODE
PGND4
SWIN (load switch input pin)
SWOUT (load switch output pin)
SWIN4, 6, 7 SWOUT4, 6, 7
PG1IN (POWERGOOD 1 input)
PG1OUT (POWERGOOD
switch 1 output)
PG1IN PG1OUT
PVCCH
FB (error amp output)
V cc
FB1 to FB7
DRAIN1, 2, 3H
(power MOS drain for CH1, CH2, and CH3)
DRAIN1, 2, 3L
(power MOS drain for CH1, CH2, and CH3)
PGND1, 23 (output step ground)
DRAIN1,2,3H
DRAIN1,2,3L
Vc c
PGND1,23
SYNC_DTC (synchronous
rectification delay time setting pin)
Vcc VREGA
SYNC_DT
C
MAIN4 (CH4 main output)
SUB4 (CH4 sub output)
OUT5 (power transistor connection)
Vcc
PVCC
Vcc
MAIN4
SUB4
OUT6 (power transistor connection)
PVCC (power supply input)
PGND4 (power ground)
VCC
VBAT2 (battery input [driver block])
OUT1B (CH1 power transistor collector output)
VBAT2
Vcc
OUT5
PGND4
Vcc
PVCC
OUT6
OUT1B
SWOUT1, 4 (load switch output pin)
PG23 (POWERGOOD switch 23 output)
SWOUT1, 4
PG23
Vcc
PGND4
SS2 (soft start capacitor connection pin)
VREGA
Vcc
SS2
Fig. 10 I/O Equivalent Circuit Diagrams (2)
www.rohm.com
? 2010 ROHM Co., Ltd. All rights reserved.
11/14
2010.09 - Rev.A
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