参数资料
型号: BD9740KN-E2
厂商: Rohm Semiconductor
文件页数: 2/15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
● Absolute maximum ratings
Technical Note
Parameter
Symbol
Ratings
BD9739KN BD9740KN
Unit
VBAT,VCC,PVCC
PVCCH,PVCCL
DRAIN*H, DRAIN*L
-0.3 to +12
-0.3 to +15
-0.3 to +12
-0.3 to +12
-0.3 to +15
-0.3 to +12
V
V
V
Maximum supply voltage
OUT1B
OUT2B
SWOUT1,4,PGIN1,PG2,3
SWIN*
-0.3 to +20
-0.3 to +17
-0.3 to +12
-0.3 to +20
-0.3 to +20
V
V
V
V
UQFN64
UQFN48
Power dissipation
Operating temperature range
Storage temperature range
Junction temperature
Pd
Topr
Tstg
T jmax
550 *1-2
*2-2
1000
-25 ~ +85
-55 ~ +125
+125
500 *1-3
760 *2-3
mW
*1:
*2:
IC without heat sink operation. Reduce by 5.5 mW/ ℃ (1-2), or 5.0 mW/ ℃ (1-3) when Ta ≥ 25 ℃ .
When mounted on a PCB (70 mm ? 70 mm ? 1.6 mm (thickness), glass epoxy).
Reduced by 10.0 mW/ ℃ (2-2), or 7.6 mW/ ℃ (2-3), when Ta ≥ 25 ℃ .
● Recommended operating ranges
Parameter
Symbol
Ratings
BD9739KN BD9740KN
Unit
VBAT
1.5 to 10
1.5 to 10
V
Supply voltage
VCC, PVCC
PVCCL, PVCCH
1.5 to 10
4.0 to 14
2.8 to 10
4.0 to 14
V
V
Parameter
Symbol
Min.
Ratings
Typ.
Max.
Unit
Conditions
[Oscillator]
Oscillating frequency
f OSC
0.1
1.2
MHz
[Driver block]
DRAIN pin input voltage
N-channel FET output current
(step-down)
N-channel FET output current
(step-up)
LED channel output current
V DRAIN
I OFET1
I OFET2
I OLED
10
700
300
40
V
mA
mA
mA
Driver output current
Driver peak current
Startup NPN TR sink current
I OUT
I PEAK
I NPNSINK
30
200
500
mA
mA
mA
External FET drive circuit
External FET drive circuit
[Positive/negative regulators]
SWOUT1 pin sink current
PGOUT1 pin source current
PG23 pin sink current
I SWOUT1
I PGOUT1
I PG23
10
100
1
mA
mA
mA
SWOUT4 pin source current
SWOUT6 pin source current
SWOUT7 pin source current
I SWOUT4
I SWOUT6
I SWOUT7
50
50
50
mA
mA
mA
(BD9739KN)
www.rohm.com
? 2010 ROHM Co., Ltd. All rights reserved.
2/14
2010.09 - Rev.A
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