FDMF8704 Fairchild Semiconductor, FDMF8704 Datasheet - Page 2

• Manufacturer Part Number: FDMF8704
• Description: IC MODULE DRIVER/FET 56MLP 8X8
• Manufacturer: Fairchild Semiconductor
• Type: Step-Down (Buck)r

Specifications of FDMF8704

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 3.2 V
• Current - Output: 32A
• Frequency - Switching: 1MHz
• Voltage - Input: 7 ~ 20 V
• Operating Temperature: -55°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 56-MLP
• Power - Output: 10W
• Supply Voltage (min): 4.5 V
• Supply Current: 50 mA
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 55 C
• Number Of Drivers: 1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FDMF8704TR

FDMF8704 Rev. G
Pin Configuration
Pin Description
8, 9, 11-20, B
21, 40-50, C
3, 7, 52-54
1, 6, 51, A
22-38
Pin
10
39
55
56
2
4
5
TEST PAD 1
TEST PAD 2
Name
CGND
VSWH
PGND
HSEN
BOOT
PWM
VCIN
DISB
VIN
NC
VSWH
VSWH
VSWH
VSWH
VSWH
VSWH
VSWH
VSWH
CGND
PWM
DISB
NC
NC
NC
IC Ground. Ground return for driver IC.
High Side FET Enable. Must be connected to BOOT pin.
No connect
IC Supply. +5V chip bias power. Bypass with a 1µF ceramic capacitor.
Bootstrap Supply Input. Provides voltage supply to high-side MOSFET driver. Connect
bootstrap capacitor.
Switch Node Input. SW Provides return for high-side bootstrapped driver and acts as a
sense point for the adaptive shoot-thru protection.
Power Input. Output stage supply voltage.
For manufacturing test only. HDRV pin. This pin must be floated. Must not be connected to
any pin.
Power ground. Output stage ground. Source pin of low side MOSFET(s).
For manufacturing test only. LDRV pin. This pin must be floated. Must not be connected to
any pin.
Output Disable. When low, this pin disable FET switching (HDRV and LDRV are held low).
PWM Signal Input. This pin accepts a logic-level PWM signal from the controller.
56
43
Figure 2. MLP 8x8 56L Bottom View
42
1
(CGND)
A
(VSWH)
C
2
(VIN)
B
14
29
Function
15
28
VIN
VIN
VIN
VIN
VIN
VIN
VSWH
PGND
PGND
PGND
PGND
PGND
PGND
PGND
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