MB3881 查看數據表（PDF） - Fujitsu

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MB3881

8-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down

Fujitsu 

MB3881

(Continued)

Parameter

Sym-

bol

Pin No.

(Ta = +25 °C, VCC = 9 V, VSS = 4.4 V, VDD = 5 V)

Conditions

Value

Unit

Min. Typ. Max.

Threshold voltage

VT0

VT100

64

Duty cycle = 0%

0.2 0.3  V

64

Duty cycle = 100%

 0.8 0.9 V

Output source current

ISOURCE

50, 53, 56, 57,

60, 61, 62

Duty ≤ 5%,

OUT = 4.4 V

Output sink current

ISINK

50, 53, 56, 57, Duty ≤ 5%,

60, 61, 62 OUT = 9 V

Output ON resistor

ROH

50, 53, 56, 57,

60, 61, 62

OUT = −15 mA

ROL

50, 53, 56, 57,

60, 61, 62

OUT = 15 mA

Output source current ISOURCE

51, 54

Duty ≤ 5%,

OUT = 0 V

Output sink current

ISINK

51, 54

Duty ≤ 5%,

OUT = 5 V

ROH

Output ON resistor

ROL

51, 54

51, 54

OUT = −15 mA

OUT = 15 mA

Output source current ISOURCE

64

RB = 24 kΩ,

OUT = 0.7 V

Output sink current

ISINK

64

Duty ≤ 5%,

OUT = 0 V

 −100  mA

 80  mA

 22 35 Ω

 17 26 Ω

 −110  mA

 100  mA

 20 32 Ω

 16 25 Ω

−2.6 −2.0 −1.4 mA

 40  mA

CTL input condition

VIH 28, 29, 30, 31 Active mode

VIL 28, 29, 30, 31 Standby mode

1.5  13 V

0

 0.5 V

Input current

ICTL 28, 29, 30, 31 CTL = 5 V



Standby current

ICCS

ICCS (O)

IDDS

ICC

Power supply current

IDD

*: Standard design value.

27

CTL-1 = 0 V



58, 59

CTL-1 = 0 V



52

CTL-1 = 0 V



27, 58, 59

CTL-1 = CTL-2

= CTL-3 = CTL-4 = 5 V



52

CTL-1 = CTL-2

= CTL-3 = CTL-4 = 5 V



100 200 µA

 10 µA

 10 µA

 10 µA

7 11 mA

 10 µA

13

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